Friday, May 22, 2020
Aladian Election Essay - 1566 Words
Over the recent decades, Canadaââ¬â¢s political landscape has undergone several shifts with the 2015 elections taking another new course of government. The 2015 elections market Canadaââ¬â¢s 29th general elections following a request of the Jim Prentice to the governor of Alberta to dissolve the legislative assembly in April 2015. Further, this marked the fourth time that the people of Alberta changed their system of government. With reference to the provincial election act, the set election date was set and the people of Alberta were allowed to the polls. This election led to the majority of the progressive conservative associations of Alberta (PCs) losing their positions as several New Democratic Party (NDP) aspirants were elected into theâ⬠¦show more contentâ⬠¦In addition, the texts showed more of betrayal forms some of the officials from the PC party. Consequently, one of the strongest party members, Jonathan Denis, the former justice minister interrupted the campai gns in the attempt to attend to the legal proceedings which involved the separated wife. Opinion Polls Influence From the beginning, the consensus that was conducted among various opinion polls indicated that Alberta was to be an NDP province. There were several pre-election polls conducted in the province all showing the popularity of the pc party. This increased the partyââ¬â¢s popularity as compared to other parties that were involved in the race. For instance, CBC polls conducted revealed that Mr. Prentice was first with a 38 percent lead then followed by 24 percent Windrose candidate. Also, when same research was conducted in Calgary, the Albertaââ¬â¢s were asked to give the party with which they were affiliated to. The NDP party came the most popular with a percentage of 28 then followed with Wildrose which had 24% popularity. As such, the statistical research affected the voter behavior in the province. In addition, the opinion polls provided some of the information that were useful for the undecided voters and therefore were observed to have impacted in th e swaying of Albertaââ¬â¢s voters. As such, the provisional conservativesââ¬â¢ party found
Saturday, May 9, 2020
The Concept Of Cultural Erasure, Inequality And Violence
Postcolonialism: The Concept of Cultural Erasure, Inequality and Violence Colonization can be dated back to 1492 with the Spanish venture led by Columbus. Colonialism is defined as ââ¬Å"The policy or practice of acquiring full or partial political control over another country, occupying it with settlers, and exploiting it economicallyâ⬠(Oxford Dictionary).This expedition spread European influence worldwide, in places such as China, Lebanon, India, and Antigua. European influence is still prevalent today through the crossing of racial lines and shifting of cultures towards a more ââ¬Ëcivilizedââ¬â¢ way of living. Colonialism is still prevalent today, in the form of postcolonialism. Postcolonialism can be defined as Americaââ¬â¢s benefaction to nations worldwide that include dynamic influences in things such as: government, culture, education and economy. One of the concepts erected from colonialism is globalization. Since globalization is a direct effect of colonial ism, it is no surprise that globalization influences the same categories as postcolonialism (government, culture, education and economy), making the two concepts almost synonymousââ¬â with minimal differences. Globalization is defined as the integration of economics and communications of nations through increased contact by technology. Globalization dominates the economic and social side of the field while postcolonialism dwells in the cultural and educational aspects. This European ââ¬Ëgiftââ¬â¢ has contributed to global conflicts,Show MoreRelatedModern Society s Criminal Justice System3383 Words à |à 14 Pagesin the government s favour. In a way, the phrase ââ¬Ëtough on crimeââ¬â¢ has become consolidated as one word in our language as political speech deliberately uses it repetitiously. On a metalinguistic level, the phrase ââ¬Ëtough on crime,ââ¬â¢ in relation to cultural behaviours, is used to alleviate of the fear of a disordered society. An utterance which serves a performative function in language and communication in which political figures may utilize security speech acts to obtain certain public responses (HuysmansRead MoreCalculus Oaper13589 Words à |à 55 PagesObviously there is a connection here. I believe that much feminist theory and criticism is stranded on this shoal. My organizing impulse is the belief that it is not enough for feminist thought that specifically lesbian texts exist. Any theory or cultural/political creation that treats lesbian existence as a marginal or less natural phenomenon, as mere sexual preference, or as the mirror image of either heterosexual or male homosexual relations is profoundly weakened thereby, whatever its otherRead MoreDeveloping Management Skills404131 Words à |à 1617 Pagestheir willingness to share their time with this competing ââ¬Å"labor of loveâ⬠and to forgive our own gaps between common sense and common practice. David A. Whetten Kim S. Cameron PREFACE xxi This page intentionally left blank MANAGEMENT CONCEPTS ââ" ââ" ââ" ââ" ââ" ââ" ââ" ââ" ââ" ââ" ââ" ââ" ââ" The Critical Role of Management Skills The Importance of Competent Managers The Skills of Effective Managers Essential Management Skills What Are Management Skills? Improving Management Skills An Approach to Skill Development
Wednesday, May 6, 2020
Allelopathy Free Essays
string(51) " with a single row hand drill in rows 30 cm apart\." Allelopathic potential of crop residues for weed management in wheat under semi-arid conditions of Pakistan Muhammad Ashraf Professor of Agronomy, PMAS-Arid Agriculture University, Rawalpindi, Pakistan. drashraf_150@yahoo. com RATIONALE â⬠¢ Rainfed Wheat- Main winter crop grown by about 80% of the farmers on residual soil moisture, received during monsoon1. We will write a custom essay sample on Allelopathy or any similar topic only for you Order Now â⬠¢ Weeds infestation- a major yield reducing factor (25-30%v); â⬠¢ If weeds are controlled, crop yield can be enhanced by about 37%2. 1 Khaliq et al. , 2007) 2 (Bibi et al. , 2005). Contâ⬠¦.. Existing Weed Control systems: â⬠¢ Traditional weed control methods (Hand weeding) are time consuming, weather dependent and labor intensive1 ; + Socio-economic issues:[small land holdings, family size =8, poverty, migration to cities] â⬠¢ Herbicides use is limited in drylands + these are expensive with Environmental hazards2; Reduced Nutritive value of many crops 3 and Herbicide resistance4. 1 (Naveed et al. , 2008) 2 (Mancini et al. , 2008) 3 (Nazarko et al. , 2003). Contâ⬠¦.. â⬠¢ WM programs should focus on environmental safety along with benefits to the farmers. Alternate weed management systems need to be developed aimed to control weeds and raise the income of resource-poor farmers (increased crop yields) without despoiling the natural resource base. ALTERNATE WEED MANAGEMENT OPTIONS â⬠¢ Allelopathy ? a mechanism of plant interference1 is a natural, inexpensive, environmentally safe and an organic approach to control weeds and increase crop yields while cons erving the ecosystem2. â⬠¢ Sorghum is highly allelopathic3 â⬠¢ Sorghum residue may be effectively used to manage some of the important weeds in rainfed wheat without affecting crop in semi-arid environment4. (Weston, 2005) 2 (Inderjit and Duke, 2003) 1 (Weston and Duke, 2003) 2 (Inderjit and Duke, 2003) Contâ⬠¦.. â⬠¢ Water Extracts of different plant parts have different allelopathic potential 1. â⬠¢ Sunflower ââ¬â possessed weed suppression ability 2 . â⬠¢ The combination of two or more allelopathic aqueous extracts may act synergistically and cause more phyto-toxic effect on weeds 3. â⬠¢ Mixing and applying sunflower and sorghum residue water extract (WE) may increase the spectrum of phytotoxic effects and may result in synergistic phytotoxic influences on weeds growth. 1 (Ben-Hammouda, et al. 001; Chung, et al. , 2003; Roth et al. , 2000) 2 (Bertholdsson, 2004; Singh et al. , 2001 ) 3 (Duke et al. , 2000; Cheema et al. , 2010) Contâ⬠¦.. OBJECTI VES OF RESEARCH Overall objective: Evaluate the use of allelopathic crop residue collected from summer crop plants grown under drought and mineral stress conditions for weed management in wheat in semi-arid areas of Pakistan: Specific Objectives: â⬠¢ Test water extracts (WE)of different plant parts of sorghum residue for weeds suppression in wheat. â⬠¢ Evaluate the effects of sorghum residue mulch and sorghum WE for weed management in wheat. Investigate the influence of sole and combined sorghum and sunflower WE spray on weeds in wheat. EXPERIMENTAL DETAILS â⬠¢ Location: Three experiments were conducted at University Research Farm, PMAS-Arid Agriculture University, Rawalpindi, Pakistan (33o 46 N, 73o 08 E). / / â⬠¢ ~500 m above the sea level â⬠¢ Experimental years: successive Rabi (winter) seasons from 2007-2010. Contâ⬠¦.. â⬠¢ Environmental Characterization: Climate Rainfall and ET o 200 160 Rainfall and ET0 (mm) 160 143 120 ETo 80 40 0 Oct Nov Dec Jan Fe b Mar Apr Rain 140 121 Mean Monthly Rainfall (mm) 20 100 80 67 60 40 26 57 56 Sever Stress Period 27 21 7 15 39 43 20 0 Month Rainfall Distribution (1977-11) Source: Soil and water conservation Research Institute, Chakwal, Pakistan Growing Season Rainfall Period Monthly rain (mm) Oct Nov Dec Jan Feb March April Total 2006-07 2007-08 2008-09 2009-10 Long-term Av. (1977-07) 0 42 30 0 166 147 14 20 7 15 27 39 56 43 Soil characteristics â⬠¢ Rawal soil series (Inceptisol-silty-clay-loam, Typic Ustochrept USDA classification and Calcaric Cambisols FAO classification scheme) with â⬠¢ Organic matter 0. 5%. â⬠¢ pH 7. 40 â⬠¢ Ece 3 dSm-1 Contâ⬠¦.. Weed Flora â⬠¢ Anagallis arvensis L. (Blue pimfernal), â⬠¢ Chenopodium album L. (Lambs quarter), â⬠¢ Fumaria indica L. (Fumitory), â⬠¢ Medicago polymorpha L. (Bur clover) â⬠¢ Avena fatua L. (Wild oat), â⬠¢ Convolvulus arvensis L. (Field bindweed), â⬠¢ Medicago denticulata L. (Denticulate Medick), â⬠¢ Rumex dentatus L. (Toothed dock) and â⬠¢ Melilotus indica L. (Sweet clover) The experimental area was free of noxious and perennial weed species. Treatments (Exp-1) â⬠¢ Control (Un-weeded check) WE: Water extract Hand weeding at 60 days after sowing (DAS) â⬠¢ Herbicide (Logron) @ 250 g ha-1 at 60 DAS â⬠¢ Sorghum root WE spray @ 10 L ha-1 at 60 and 80 DAS â⬠¢ Sorghum stem WE spray @ 10 L ha-1 at 60 and 80 DAS â⬠¢ Sorghum leaf WE spray @ 10 L ha-1 at 60 and 80 DAS â⬠¢ Sorghum stem + root WE @ 5+5 L ha-1 at 60 and 80 DAS â⬠¢ Sorghum stem + leaf WE @ 5+5 L ha-1 at 60 and 80 DAS â⬠¢ Sorghum root + leaf WE @ 5+5 L ha-1 at 60 and 80 DAS Treatments (Exp-2) WE: Water extract â⬠¢ Control (Un-weeded check) â⬠¢ Hand weeding at 50 and 80 DAS â⬠¢ Sorghum mulch @ 5 Mg ha-1 (Soil incorporated) â⬠¢ Sorghum mulch @ 10 Mg ha-1 Soil incorporated) â⬠¢ Sorghum WE @ 10 L ha-1 at 50 DAS. â⬠¢ Sorghum WE @ 10 L ha-1 at 50 and 80 DAS. â⬠¢ Sorgh um WE @ 20 L ha-1 at 50 DAS. â⬠¢ Sorghum WE @ 20 L ha-1 at 50 and 80 DAS Treatments (Exp-3) â⬠¢ Control (Un-weeded check) WE: Water extract â⬠¢ Sunflower WE @ 20 L ha-1 at 50 DAS â⬠¢ Sorghum WE @ 20 L ha-1 at 50 DAS â⬠¢ Sunflower WE + sorghum WE @ 10 +10 L ha-1 at 50 DAS â⬠¢ Sunflower WE @ 20 L ha-1 at 50 and 80 DAS â⬠¢ Sorghum WE @ 20 L ha-1 at 50 and 80 DAS â⬠¢ Sunflower WE + sorghum WE @ 10 + 10 L ha-1 at 50 and 80 DAS Research Methodology: Preparation of water extract â⬠¢ Sunflower and sorghum plants were harvested at maturity, grains were separated and residue was sundried and chaffed with fodder cutter into 2 cm pieces. â⬠¢ Chaffed residue was soaked in de-ionized water in 1:10 (1 kg each of herbage in 10 L of water) in separate containers for 24 h at room temperature to prepare water extract (WE) . â⬠¢ WE from respective containers were obtained by filtering the mixture through a screen. The volume of respective filtrate was reduced twenty times by continuously boiling at 100 0C to prepare water extract (Cheema and Khaliq, 2000). Sowing and cultural practices â⬠¢ Seedbed was prepared by giving four cultivations each followed by planking. â⬠¢ Fertilizer @ 125- kg N and P2O5 ha-1 was applied at the time of seedbed preparation. â⬠¢ Wheat cv. ââ¬ËInqilab-91ââ¬â¢ was seeded @125 kg ha-1 was during November with a single row hand drill in rows 30 cm apart. You read "Alle lopathy" in category "Papers" Layout design: RCBD with 4R; Eight rows 30 cm apart per treatment were maintained in plot size of 7. 0 x 2. 4 m. â⬠¢ The wheat variety, sowing time, layout plan and other cultural practices were almost same for every year. Measures: Weeds â⬠¢ Weed density â⬠¢ Weed dry weight (biomass) Wheat â⬠¢ Spike length (cm), â⬠¢ Spikelets spike-1 â⬠¢ Grains spike-1 â⬠¢ Fertile tillers m-2 â⬠¢ 1000-grain weight. Statistical analysis The data were subjected to analysis of variance technique. F-statistic was based on residual mean square error. The LSD at 5% level of probability was used for comparison of treatment means (Montgomery, 2001). RESULTS DISCUSSION Experiment # 1 Phyto-toxic effects of root, stem and leaf water extract of mature sorghum on Weeds density Dry weight Treatments Control (Un-weeded check) Hand weeding at 60 DAS Exp-1 Weed density ( m-2) 80 DAS 105 DAS Weeds dry weight (g m-2) 80 DAS 105 DAS 147 a 79 d (-46*) 132 a 78 f (-41) 36. 7 g (-72) 102 c (-22) 112 b (-15) 113 b (-14 88 e (-33) 94 de (-29) 102 cd (-23) 8. 52 2 a 12 e (-45) 5. 5 f (-75) 18 cd (-16) 20 b (-8) 20 b (-8) 17 d (-22) 17 cd (-20) 19 bc (-14) 1. 54 27 a 17 e (-38) 8. 77 f (-67) 21 c (-21) 24 b (-11) 23 b (-14) 18 e (-34) 20 d (-27) 27 c (-20) 1. 57 Herbicide (Logron) @ 250 g ha-1 34 e (-77) at 60 DAS Sorghum root WE spray @ 10 L 117 c (-21) ha-1 at 60 and 80 DAS Sorghum stem WE spray @ 10 L 129 b (-12) ha-1 at 60 and 80 DAS Sorghum leaf WE spray @ 10 L 127 b (-14) ha-1 at 60 and 80 DAS Sorghum stem + root WE@ 5+5 L 113 c (-23) ha-1 at 60 and 80 DAS Sorghum stem + leaf WE@ 5+5 L 111 c (-24) ha-1 at 60 and 80 DAS Sorghum root + leaf WE @ 5+ 5 121 bc (-18) L ha-1 60 and 80 DAS LSD (0. 05) 10. 41 * Figures in parenthesis show % decrease in weed density/dry weight compared to control. Effect of root, stem and leaf water extract of mature sorghum on yield components and wheat grain yield Treatments Control (Un-weeded check) Tillers (m-2) Spike length (cm) Spikelet # spike-1 Grains # 1000-Grain spike-1 weight (g) Exp-1 Grain yield (T ha-1) 345e Hand weeding at 60 DAS 396b Herbicide (Logron) @ 250 g 427a ha-1 at 60 DAS Sorghum root WE spray @ 10 L ha-1 at 60 and 80 DAS Sorghum stem WE spray @ 10 L ha-1 at 60 and 80 DAS Sorghum leaf WE spray @ 10 L ha-1 at 60 and 80 DAS Sorghum stem + root WE@ 5+5 L ha-1 at 60 and 80 DAS Sorghum stem + leaf WE@ 5+5 L ha-1 at 60 and 80 DAS Sorghum root + leaf WE @ 5+ 5 L ha-1 60 and 80 DAS LSD (0. 05) 9. 0e 10. 3abcd 11. 2a 10. 0bcde 9. 5de 9. 8cde 10. 9 ab 10. abc 10. 7 abc 1. 03 20. 7 21. 0 20. 9 21. 1 20. 5 21. 1 20. 2 21. 0 20. 2 ââ¬â 41. 7c 47. 3ab 49. 4a 48. 8ab 47. 3ab 46. 1b 49. 0ab 48. 0ab 48. 0ab 3. 04 32. 5e 33. 7d 34. 6bc 35. 6a 33. 6d 33. 1de 36. 0a 33. 9cd 35. 2ab 0. 90 2. 76f 3. 2bc (+18) 3. 5a (+26) 3. 1cde (+12) 3. 0de 2. 9ef (+8) (+6) 365cde 353de 349e 357de 385bc 376bcd 54. 45 3. 3ab (+20) 3. 3abc (+19) 3. 2bcd (+14) 213. 2 * Figures in parenthesis show % decrease in weed density/dry weight compared to control. FINDINGS FROM EXPERIMENT # 1: â⬠¢ Sorghum stem + root WE@ 5+5 L ha-1 at 60 and 80 DAS treatment caused 33% reduction in weed density and dry weight by about; â⬠¢ This reduction was 41% in hand weeding and 72% by the application of Logron @ 250 g ha-1 at 60 DAS â⬠¢ The increase in grain yield in stem + root and stem + leaf WE treatments were statistically same as in hand weeding and herbicide application. Contâ⬠¦.. Experiment # 2 RESULTS DISCUSSION FINDINGS FROM EXPERIMENT # 2: â⬠¢ Data showed that incorporation of sorghum herbage mulch @ 10 Mg ha-1 and twotimes sprays of Sorghum water extract @ 20 L ha-1 at 50 and 80 DAS decreased weeds density by about 42%, and weeds dry weight by 34%, respectively compared to control measured at 95DAS. â⬠¢ Maximum increase (33%) in wheat grain yield was recorded in plots where two times Sorghum WE @ 20 L ha-1 was sprayed at 50 and 80 DAS over control. Contâ⬠¦.. Experiment # 3 RESULTS DISCUSSION FINDING FROM EXPERIMENT # 3: â⬠¢ Sorghum water extract was more effective than sunflower water extract and combination of both these extracts performed better than their sole application. Contâ⬠¦.. CONCLUSION I. Stem + root water extract suppressed weed density by 33% over control i. e. about half of the effects of herbicide ââ¬Å"Logronâ⬠application (72%) in wheat. The increase in grain yield in stem + root and stem + leaf WE treatments was statistically at par with hand weeding and herbicide application. Although root WE alone and in combination with stem or leaf WE was more effective in suppressing weeds and improving wheat yields but using whole plant sorghum herbage seems more practicable. II. Incorporation of sorghum herbage mulch @ 10 Mg ha-1 and two times sprays of sorghum WE @ 20 L ha-1 at 50 and 80 DAS decreased weeds density by about 42%, and weeds dry weight by 34%, respectively compared to control measured at 95 DAS. Maximum increase in wheat grain yield by 33% over control was recorded in plots where two times sorghum WE @ 20 L ha-1 was sprayed at 50 and 80 DAS. III. Sorghum WE was more effective than sunflower WE and mixture of sorghum and sunflower reduced weed density and weed dry weight by 27% and 26% over control respectively, and increased wheat yields by 48% over control. RECOMMENDATION â⬠¢ The mixture of preceding allelopathic crop herbage use as mulch or water extract for weed management both for summer and winter crops need to be further investigated under different ecological zones of Pakistan. Muhammad Ashraf Professor of Agronomy drashraf_150@yahoo. com How to cite Allelopathy, Papers
Allelopathy Free Essays
string(51) " with a single row hand drill in rows 30 cm apart\." Allelopathic potential of crop residues for weed management in wheat under semi-arid conditions of Pakistan Muhammad Ashraf Professor of Agronomy, PMAS-Arid Agriculture University, Rawalpindi, Pakistan. drashraf_150@yahoo. com RATIONALE â⬠¢ Rainfed Wheat- Main winter crop grown by about 80% of the farmers on residual soil moisture, received during monsoon1. We will write a custom essay sample on Allelopathy or any similar topic only for you Order Now â⬠¢ Weeds infestation- a major yield reducing factor (25-30%v); â⬠¢ If weeds are controlled, crop yield can be enhanced by about 37%2. 1 Khaliq et al. , 2007) 2 (Bibi et al. , 2005). Contâ⬠¦.. Existing Weed Control systems: â⬠¢ Traditional weed control methods (Hand weeding) are time consuming, weather dependent and labor intensive1 ; + Socio-economic issues:[small land holdings, family size =8, poverty, migration to cities] â⬠¢ Herbicides use is limited in drylands + these are expensive with Environmental hazards2; Reduced Nutritive value of many crops 3 and Herbicide resistance4. 1 (Naveed et al. , 2008) 2 (Mancini et al. , 2008) 3 (Nazarko et al. , 2003). Contâ⬠¦.. â⬠¢ WM programs should focus on environmental safety along with benefits to the farmers. Alternate weed management systems need to be developed aimed to control weeds and raise the income of resource-poor farmers (increased crop yields) without despoiling the natural resource base. ALTERNATE WEED MANAGEMENT OPTIONS â⬠¢ Allelopathy ? a mechanism of plant interference1 is a natural, inexpensive, environmentally safe and an organic approach to control weeds and increase crop yields while cons erving the ecosystem2. â⬠¢ Sorghum is highly allelopathic3 â⬠¢ Sorghum residue may be effectively used to manage some of the important weeds in rainfed wheat without affecting crop in semi-arid environment4. (Weston, 2005) 2 (Inderjit and Duke, 2003) 1 (Weston and Duke, 2003) 2 (Inderjit and Duke, 2003) Contâ⬠¦.. â⬠¢ Water Extracts of different plant parts have different allelopathic potential 1. â⬠¢ Sunflower ââ¬â possessed weed suppression ability 2 . â⬠¢ The combination of two or more allelopathic aqueous extracts may act synergistically and cause more phyto-toxic effect on weeds 3. â⬠¢ Mixing and applying sunflower and sorghum residue water extract (WE) may increase the spectrum of phytotoxic effects and may result in synergistic phytotoxic influences on weeds growth. 1 (Ben-Hammouda, et al. 001; Chung, et al. , 2003; Roth et al. , 2000) 2 (Bertholdsson, 2004; Singh et al. , 2001 ) 3 (Duke et al. , 2000; Cheema et al. , 2010) Contâ⬠¦.. OBJECTI VES OF RESEARCH Overall objective: Evaluate the use of allelopathic crop residue collected from summer crop plants grown under drought and mineral stress conditions for weed management in wheat in semi-arid areas of Pakistan: Specific Objectives: â⬠¢ Test water extracts (WE)of different plant parts of sorghum residue for weeds suppression in wheat. â⬠¢ Evaluate the effects of sorghum residue mulch and sorghum WE for weed management in wheat. Investigate the influence of sole and combined sorghum and sunflower WE spray on weeds in wheat. EXPERIMENTAL DETAILS â⬠¢ Location: Three experiments were conducted at University Research Farm, PMAS-Arid Agriculture University, Rawalpindi, Pakistan (33o 46 N, 73o 08 E). / / â⬠¢ ~500 m above the sea level â⬠¢ Experimental years: successive Rabi (winter) seasons from 2007-2010. Contâ⬠¦.. â⬠¢ Environmental Characterization: Climate Rainfall and ET o 200 160 Rainfall and ET0 (mm) 160 143 120 ETo 80 40 0 Oct Nov Dec Jan Fe b Mar Apr Rain 140 121 Mean Monthly Rainfall (mm) 20 100 80 67 60 40 26 57 56 Sever Stress Period 27 21 7 15 39 43 20 0 Month Rainfall Distribution (1977-11) Source: Soil and water conservation Research Institute, Chakwal, Pakistan Growing Season Rainfall Period Monthly rain (mm) Oct Nov Dec Jan Feb March April Total 2006-07 2007-08 2008-09 2009-10 Long-term Av. (1977-07) 0 42 30 0 166 147 14 20 7 15 27 39 56 43 Soil characteristics â⬠¢ Rawal soil series (Inceptisol-silty-clay-loam, Typic Ustochrept USDA classification and Calcaric Cambisols FAO classification scheme) with â⬠¢ Organic matter 0. 5%. â⬠¢ pH 7. 40 â⬠¢ Ece 3 dSm-1 Contâ⬠¦.. Weed Flora â⬠¢ Anagallis arvensis L. (Blue pimfernal), â⬠¢ Chenopodium album L. (Lambs quarter), â⬠¢ Fumaria indica L. (Fumitory), â⬠¢ Medicago polymorpha L. (Bur clover) â⬠¢ Avena fatua L. (Wild oat), â⬠¢ Convolvulus arvensis L. (Field bindweed), â⬠¢ Medicago denticulata L. (Denticulate Medick), â⬠¢ Rumex dentatus L. (Toothed dock) and â⬠¢ Melilotus indica L. (Sweet clover) The experimental area was free of noxious and perennial weed species. Treatments (Exp-1) â⬠¢ Control (Un-weeded check) WE: Water extract Hand weeding at 60 days after sowing (DAS) â⬠¢ Herbicide (Logron) @ 250 g ha-1 at 60 DAS â⬠¢ Sorghum root WE spray @ 10 L ha-1 at 60 and 80 DAS â⬠¢ Sorghum stem WE spray @ 10 L ha-1 at 60 and 80 DAS â⬠¢ Sorghum leaf WE spray @ 10 L ha-1 at 60 and 80 DAS â⬠¢ Sorghum stem + root WE @ 5+5 L ha-1 at 60 and 80 DAS â⬠¢ Sorghum stem + leaf WE @ 5+5 L ha-1 at 60 and 80 DAS â⬠¢ Sorghum root + leaf WE @ 5+5 L ha-1 at 60 and 80 DAS Treatments (Exp-2) WE: Water extract â⬠¢ Control (Un-weeded check) â⬠¢ Hand weeding at 50 and 80 DAS â⬠¢ Sorghum mulch @ 5 Mg ha-1 (Soil incorporated) â⬠¢ Sorghum mulch @ 10 Mg ha-1 Soil incorporated) â⬠¢ Sorghum WE @ 10 L ha-1 at 50 DAS. â⬠¢ Sorghum WE @ 10 L ha-1 at 50 and 80 DAS. â⬠¢ Sorgh um WE @ 20 L ha-1 at 50 DAS. â⬠¢ Sorghum WE @ 20 L ha-1 at 50 and 80 DAS Treatments (Exp-3) â⬠¢ Control (Un-weeded check) WE: Water extract â⬠¢ Sunflower WE @ 20 L ha-1 at 50 DAS â⬠¢ Sorghum WE @ 20 L ha-1 at 50 DAS â⬠¢ Sunflower WE + sorghum WE @ 10 +10 L ha-1 at 50 DAS â⬠¢ Sunflower WE @ 20 L ha-1 at 50 and 80 DAS â⬠¢ Sorghum WE @ 20 L ha-1 at 50 and 80 DAS â⬠¢ Sunflower WE + sorghum WE @ 10 + 10 L ha-1 at 50 and 80 DAS Research Methodology: Preparation of water extract â⬠¢ Sunflower and sorghum plants were harvested at maturity, grains were separated and residue was sundried and chaffed with fodder cutter into 2 cm pieces. â⬠¢ Chaffed residue was soaked in de-ionized water in 1:10 (1 kg each of herbage in 10 L of water) in separate containers for 24 h at room temperature to prepare water extract (WE) . â⬠¢ WE from respective containers were obtained by filtering the mixture through a screen. The volume of respective filtrate was reduced twenty times by continuously boiling at 100 0C to prepare water extract (Cheema and Khaliq, 2000). Sowing and cultural practices â⬠¢ Seedbed was prepared by giving four cultivations each followed by planking. â⬠¢ Fertilizer @ 125- kg N and P2O5 ha-1 was applied at the time of seedbed preparation. â⬠¢ Wheat cv. ââ¬ËInqilab-91ââ¬â¢ was seeded @125 kg ha-1 was during November with a single row hand drill in rows 30 cm apart. You read "Alle lopathy" in category "Papers" Layout design: RCBD with 4R; Eight rows 30 cm apart per treatment were maintained in plot size of 7. 0 x 2. 4 m. â⬠¢ The wheat variety, sowing time, layout plan and other cultural practices were almost same for every year. Measures: Weeds â⬠¢ Weed density â⬠¢ Weed dry weight (biomass) Wheat â⬠¢ Spike length (cm), â⬠¢ Spikelets spike-1 â⬠¢ Grains spike-1 â⬠¢ Fertile tillers m-2 â⬠¢ 1000-grain weight. Statistical analysis The data were subjected to analysis of variance technique. F-statistic was based on residual mean square error. The LSD at 5% level of probability was used for comparison of treatment means (Montgomery, 2001). RESULTS DISCUSSION Experiment # 1 Phyto-toxic effects of root, stem and leaf water extract of mature sorghum on Weeds density Dry weight Treatments Control (Un-weeded check) Hand weeding at 60 DAS Exp-1 Weed density ( m-2) 80 DAS 105 DAS Weeds dry weight (g m-2) 80 DAS 105 DAS 147 a 79 d (-46*) 132 a 78 f (-41) 36. 7 g (-72) 102 c (-22) 112 b (-15) 113 b (-14 88 e (-33) 94 de (-29) 102 cd (-23) 8. 52 2 a 12 e (-45) 5. 5 f (-75) 18 cd (-16) 20 b (-8) 20 b (-8) 17 d (-22) 17 cd (-20) 19 bc (-14) 1. 54 27 a 17 e (-38) 8. 77 f (-67) 21 c (-21) 24 b (-11) 23 b (-14) 18 e (-34) 20 d (-27) 27 c (-20) 1. 57 Herbicide (Logron) @ 250 g ha-1 34 e (-77) at 60 DAS Sorghum root WE spray @ 10 L 117 c (-21) ha-1 at 60 and 80 DAS Sorghum stem WE spray @ 10 L 129 b (-12) ha-1 at 60 and 80 DAS Sorghum leaf WE spray @ 10 L 127 b (-14) ha-1 at 60 and 80 DAS Sorghum stem + root WE@ 5+5 L 113 c (-23) ha-1 at 60 and 80 DAS Sorghum stem + leaf WE@ 5+5 L 111 c (-24) ha-1 at 60 and 80 DAS Sorghum root + leaf WE @ 5+ 5 121 bc (-18) L ha-1 60 and 80 DAS LSD (0. 05) 10. 41 * Figures in parenthesis show % decrease in weed density/dry weight compared to control. Effect of root, stem and leaf water extract of mature sorghum on yield components and wheat grain yield Treatments Control (Un-weeded check) Tillers (m-2) Spike length (cm) Spikelet # spike-1 Grains # 1000-Grain spike-1 weight (g) Exp-1 Grain yield (T ha-1) 345e Hand weeding at 60 DAS 396b Herbicide (Logron) @ 250 g 427a ha-1 at 60 DAS Sorghum root WE spray @ 10 L ha-1 at 60 and 80 DAS Sorghum stem WE spray @ 10 L ha-1 at 60 and 80 DAS Sorghum leaf WE spray @ 10 L ha-1 at 60 and 80 DAS Sorghum stem + root WE@ 5+5 L ha-1 at 60 and 80 DAS Sorghum stem + leaf WE@ 5+5 L ha-1 at 60 and 80 DAS Sorghum root + leaf WE @ 5+ 5 L ha-1 60 and 80 DAS LSD (0. 05) 9. 0e 10. 3abcd 11. 2a 10. 0bcde 9. 5de 9. 8cde 10. 9 ab 10. abc 10. 7 abc 1. 03 20. 7 21. 0 20. 9 21. 1 20. 5 21. 1 20. 2 21. 0 20. 2 ââ¬â 41. 7c 47. 3ab 49. 4a 48. 8ab 47. 3ab 46. 1b 49. 0ab 48. 0ab 48. 0ab 3. 04 32. 5e 33. 7d 34. 6bc 35. 6a 33. 6d 33. 1de 36. 0a 33. 9cd 35. 2ab 0. 90 2. 76f 3. 2bc (+18) 3. 5a (+26) 3. 1cde (+12) 3. 0de 2. 9ef (+8) (+6) 365cde 353de 349e 357de 385bc 376bcd 54. 45 3. 3ab (+20) 3. 3abc (+19) 3. 2bcd (+14) 213. 2 * Figures in parenthesis show % decrease in weed density/dry weight compared to control. FINDINGS FROM EXPERIMENT # 1: â⬠¢ Sorghum stem + root WE@ 5+5 L ha-1 at 60 and 80 DAS treatment caused 33% reduction in weed density and dry weight by about; â⬠¢ This reduction was 41% in hand weeding and 72% by the application of Logron @ 250 g ha-1 at 60 DAS â⬠¢ The increase in grain yield in stem + root and stem + leaf WE treatments were statistically same as in hand weeding and herbicide application. Contâ⬠¦.. Experiment # 2 RESULTS DISCUSSION FINDINGS FROM EXPERIMENT # 2: â⬠¢ Data showed that incorporation of sorghum herbage mulch @ 10 Mg ha-1 and twotimes sprays of Sorghum water extract @ 20 L ha-1 at 50 and 80 DAS decreased weeds density by about 42%, and weeds dry weight by 34%, respectively compared to control measured at 95DAS. â⬠¢ Maximum increase (33%) in wheat grain yield was recorded in plots where two times Sorghum WE @ 20 L ha-1 was sprayed at 50 and 80 DAS over control. Contâ⬠¦.. Experiment # 3 RESULTS DISCUSSION FINDING FROM EXPERIMENT # 3: â⬠¢ Sorghum water extract was more effective than sunflower water extract and combination of both these extracts performed better than their sole application. Contâ⬠¦.. CONCLUSION I. Stem + root water extract suppressed weed density by 33% over control i. e. about half of the effects of herbicide ââ¬Å"Logronâ⬠application (72%) in wheat. The increase in grain yield in stem + root and stem + leaf WE treatments was statistically at par with hand weeding and herbicide application. Although root WE alone and in combination with stem or leaf WE was more effective in suppressing weeds and improving wheat yields but using whole plant sorghum herbage seems more practicable. II. Incorporation of sorghum herbage mulch @ 10 Mg ha-1 and two times sprays of sorghum WE @ 20 L ha-1 at 50 and 80 DAS decreased weeds density by about 42%, and weeds dry weight by 34%, respectively compared to control measured at 95 DAS. Maximum increase in wheat grain yield by 33% over control was recorded in plots where two times sorghum WE @ 20 L ha-1 was sprayed at 50 and 80 DAS. III. Sorghum WE was more effective than sunflower WE and mixture of sorghum and sunflower reduced weed density and weed dry weight by 27% and 26% over control respectively, and increased wheat yields by 48% over control. RECOMMENDATION â⬠¢ The mixture of preceding allelopathic crop herbage use as mulch or water extract for weed management both for summer and winter crops need to be further investigated under different ecological zones of Pakistan. Muhammad Ashraf Professor of Agronomy drashraf_150@yahoo. com How to cite Allelopathy, Papers
Tuesday, April 28, 2020
Introduction to Ice cream business free essay sample
l scream for Ice cream! is a popular expression widely known and used throughout all ages professing their undeniably strong love for ice cream. Who doesnt love ice cream? Kids, being kids, love sweet treats from cakes, chocolates, brownies but most popular among all is ice cream. The cold and sweet combination of this treat makes all child tantrums go away. Adults as well see ice cream as a reward and sweet comfort food taken every once in a while to quench their sweet cravings. As our generation today becomes more health conscious, ice cream has been one of he hot picks for criticisms due to its high calorie and sugar contents. This poses so many issues for adults, especially those who belong to the diabetic group. And as these issues have started to arise, ice cream businesses have strived to fit and suit the needs of the customers along with their sweet wants. We will write a custom essay sample on Introduction to Ice cream business or any similar topic specifically for you Do Not WasteYour Time HIRE WRITER Only 13.90 / page Fat-free and sugar-free ice creams and yogurts have been in the trend to provide the sweet cravings without endangering the consumers health. Fit Cream is an Ice Cream business that caters to the health specifications of consumers. Adapting to the market that caters to the concerns of the customers with heir health, Fit cream wishes to provide delicious and healthy ice cream in a very affordable price. This will help the self-conscious customers to enjoy their sweet cravings and at the same time watch their health. Parents who are constantly trying to come up with inventive ways of persuading their children to eat vegetables probably have not tried disguising them in ice cream. Through this, the kids will be eating healthier and maybe starting these vegetable ice cream products as a stepping stone to taking the actual vegetable soon. The mix of healthy and sweet will surely attract the attention of people of all ages.
Friday, March 20, 2020
Administrative Assistant
Ace the Interview Secretary/Administrative Assistant If youre new to the professional arena, chances are you may be new to interviewing as well. These tips from Best-Job-Interview.com can help you practice your answers and prepare to face your interview with poise, wit, and composure.First off, à review your resume and cover letter and have anecdotes from your work background- even if youre making a career change or only have informal internship experience- ready to go when prompted. Be able to talk specifically about what you did in your last position and how that prepares you to meet the challenges of this prospective job.Here are some common questions you might face on interview day.What made you apply for this job?The answer to this one should not be Because I need money, even if thats the honest truth! Identify some aspects of the jobs responsibilities or the company itself that make you most excited to join their team. Do you see it as part of your long-term goals? Do you pride yourself on providing excellent customer service? Have you always wanted to work for a major media outlet?What motivates you?Again, the right answer here is not $$$$! Be wary of potentially prejudicial responses- employers are legally not allowed to ask about age, marital status, or whether youre a parent, but many people reveal this information too casually in questions like these. Its sexist and nonsensical, sure, but to be on the safe side, come up with an answer about your drive, or your enthusiasm for the industry, or a mentor/role model who inspires you.What qualities do you consider most important in a secretary or administrative professional?Refer directly to your resume if you need examples for this one! You can also memorize some of the requirements from the job posting and rattle those off to show you understand the company culture and are ready to rise to their expectations.What are some of your strengths and weaknesses?This is a time for medium honesty. Be confident about your strengths, for sure- particularly if you k now you have references who will agree that youre a dynamic go-getter with poise and a professional attitude. Then,à perform that age-old weaknesses spin where you highlight your perfectionism or the fact that youre so eager to do well that sometimes you need help with prioritizing tasks.What did you enjoy the most, and the least, about your last job?Your answer to this question should reveal something about your attitude towards work in general, but shouldnt devolve into complaints about your last job. After all, if youll complainà about your previous employer, theres nothing to suggest you wont complainà equally freely about your next one.The absence of challenges, support, or adequate benefits is a pretty safe one, or if there were no long-term opportunities for you there.An employer wants to hear that you have real-world experience, that youre an effective employee, and that you can think creativelyà about different job contexts. For example, my first job out of college, my main work experience was as a Teaching Assistant and as an employee of Build-a-Bear Workshop. I was able to demonstrate that hosting a birthday party for ten sugared-up 9-year-olds was pretty similar to shepherding a dynamic list of titles to publication, to the amusement of the editors who were interviewing me. Hey, I got the job!
Tuesday, March 3, 2020
Alexander Graham Bell, Inventor of the Telephone
Alexander Graham Bell, Inventor of the Telephone Alexander Graham Bell (March 3, 1847ââ¬âAugust 2, 1922) invented the telephone in 1876 when he was just 29 years old. Soon after, he formed the Bell Telephone Company. Bell could have easily been content with the success of his invention. His many laboratory notebooks demonstrate, however, that he was driven by a genuine and rare intellectual curiosity that kept him regularly searching, striving, and always wanting to learn more and to create.à He would continue to test out new ideas throughout a long and productive life. This included exploring the realm of communications as well as engaging in a wide variety of scientific pursuits that involved kites, airplanes, tetrahedral structures, sheep-breeding, artificial respiration, desalinization, water distillation, and even hydrofoils. Fast Facts: Alexander Graham Bell Known For: Inventing the telephoneBorn: March 3, 1847 in Edinburgh, ScotlandParents: Alexander Melville Bell, Eliza Grace Symonds BellDied: August 2, 1922 inà Nova Scotia, CanadaEducation: University of Edinburgh (1864), University College London (1868)Publications: A founding member of theà National Geographic Society, he helped launce Science magazineAwards and Honors: Albert Medal (1902), John Fritz Medal (1907), Elliott Cresson Medal (1912)Spouse: Mabel Hubbardà (m.à 1877ââ¬â1922)Children: Elsie May, Marian Hubbard, Edward, RobertNotable Quote: The inventor looks upon the world and is not contented with things as they are. He wants to improve whatever he sees, he wants to benefit the world; he is haunted by an idea. The spirit of invention possesses him, seeking materialization. Early Life Bell was born on March 3, 1847, to Alexander Melville and Eliza Symondsà in Edinburgh, Scotland. He was immersed in the study of sound from the beginning. His father, uncle, and grandfather were authorities on elocution and speech therapy for the deaf. It was understood that Bell would follow in the family footsteps after finishing college. However, after Bells two other brothers died of tuberculosis, Bell and his parents decided to immigrate to Canada in 1870. After a brief period living in Ontario, the Bells moved to Boston, where they established speech-therapy practices specializing in teaching deaf children to speak. One of Alexander Graham Bells pupils was a young Helen Keller, who when they met was not only blind and deaf but also unable to speak. In 1872, Bell met Boston attorney Gardiner Greene Hubbard, who would become one of his financial backers and his father-in-law. Bell began to court Hubbards daughter, Mabel, in 1873. They married in 1877. From Telegraph to Telephone The telegraph and telephone are both wire-based electrical systems, and Bells success with the telephone came as a direct result of his attempts to improve the telegraph. When he began experimenting with electrical signals, the telegraph had been an established means of communication for some 30 years. Although a highly successful system, the telegraph was basically limited to receiving and sending one message at a time. Bells extensive knowledge of the nature of sound and his understanding of music enabled him to conjecture the possibility of transmitting multiple messages over the same wire at the same time. Although the idea of a multiple telegraph had been in existence for some time, no one had been able to fabricate one- until Bell. His harmonic telegraph was based on the principle that several notes could be sent simultaneously along the same wire if the notes or signals differed in pitch. Talk With Electricity By October 1874, Bells research had progressed to the extent that he could inform his future father-in-law about the possibility of a multiple telegraph. Hubbard, who resented the absolute control then exerted by the Western Union Telegraph Company, instantly saw the potential for breaking such a monopoly and gave Bell the financial backing he needed. Bell proceeded with his work on the multiple telegraph, but he did not tell Hubbard that he and Thomas Watson, a young electrician whose services he had enlisted, were also developing a device that would transmit speech electrically. While Watson worked on the harmonic telegraph at the insistent urging of Hubbard and other backers, Bell secretly met in March 1875 with Joseph Henry, the respected director of the Smithsonian Institution, who listened to Bells ideas for a telephone and offered encouraging words. Spurred on by Henrys positive opinion, Bell and Watson continued their work. By June 1875, the goal of creating a device that would transmit speech electrically was about to be realized. They had proven that different tones would vary the strength of an electric current in a wire. To achieve success, they needed only to build a working transmitter with a membrane capable of varying electronic currents and a receiver that would reproduce these variations in audible frequencies. Mr. Watson, Come Here On June 2, 1875, while experimenting with his harmonic telegraph, Bell and Watson discovered that sound could be transmitted over a wire. It was a completely accidental discovery. Watson was trying to loosen a reed that had been wound around a transmitter when he plucked it by accident. The vibration produced by that gesture traveled along the wire into a second device in the other room where Bell was working. The twang Bell heard was all the inspiration that he and Watson needed to accelerate their work. They continued to work into the next year. Bell recounted the critical moment in his journal:à I then shouted into M [the mouthpiece] the following sentence: Mr. Watson, come here- I want to see you. To my delight, he came and declared that he had heard and understood what I said. Other Inventions Alexander Graham Bells curiosity also led him to speculate on the nature of heredity, initially among the deaf and later with sheep born with genetic mutations. He conducted sheep-breeding experiments at his estate to see if he can increase the numbers of twin and triplet births.à In other instances, it drove him to try to come up with novel solutions on the spot whenever problems arose. In 1881, he hastily constructed a metal detector as a way to try and locate a bullet lodged in President James Garfield after an assassination attempt. He would later improve this and produced a device called a telephone probe, which would make a telephone receiver click when it touched metal. And when Bells newborn son, Edward, died from respiratory problems, he responded by designing a metal vacuum jacket that would facilitate breathing. The apparatus was a forerunner of the iron lung used in the 1950s to aid polio victims. Other ideas he dabbled in included inventing the audiometer to detect minor hearing problems and conducting experiments with what today are called energy recycling and alternative fuels. Bell also worked on methods of removing salt from seawater. Flight Technology These interests may be considered minor activities compared to the time and effort he put into making advances in flight technology. By the 1890s, Bell had begun experimenting with propellers and kites, which led him to apply the concept of the tetrahedron (a solid figure with four triangular faces) to kite design as well as to create a new form of architecture.à In 1907, four years after the Wright Brothers first flew at Kitty Hawk, Bell formed the Aerial Experiment Association with Glenn Curtiss, William Casey Baldwin, Thomas Selfridge, and J.A.D. McCurdy, four young engineers with the common goal of creating airborne vehicles. By 1909, the group had produced four powered aircraft, the best of which, the Silver Dart, made a successful powered flight in Canada on February 23, 1909. Later Years and Death Bell spent the last decade of his life improving hydrofoil designs. In 1919, he and Casey Baldwin built a hydrofoil that set a world water-speed record that was not broken until 1963. Months before he died, Bell told a reporter, There cannot be mental atrophy in any person who continues to observe, to remember what he observes, and to seek answers for his unceasing hows and whys about things. Bell died on Aug. 2, 1922,à at his estate in Nova Scotia, Canada. Other Works and Legacy Although working with the deaf would remain Bells principal source of income, he continued to pursue his own studies of sound throughout his life. Bells unceasing scientific curiosity led to theà invention of the photophone, a device that allowed for the transmission of sound on a beam of light. Despite being known for his invention of the telephone, Bell regarded the photophone as the greatest invention I have ever made; greater than the telephone. The invention set the foundation upon which todays laser and fiber optic communication systems are founded, though it would take the development of several modern technologies to fully capitalize on this breakthrough. With the enormous technical and financial success of his telephone invention, Bells future was secure enough so that he could devote himself to other scientific interests. For example, in 1881, he used the $10,000 award for winning Frances Volta Prize to set up the Volta Laboratory in Washington, D.C. A believer in scientific teamwork, Bell worked with two associates: his cousin Chichester Bell and Charles Sumner Tainter, at the Volta Laboratory. Their experiments produced such major improvements in Thomas Edisons phonograph that it became commercially viable. After his first visit to Nova Scotia in 1885, Bell set up another laboratory there at his estate Beinn Bhreagh (pronounced Ben Vreeah), near Baddeck, where he would assemble other teams of bright young engineers to pursue new and exciting ideas heading into the future. Sources Vanderbilt, Tom. ââ¬Å"A Brief History of the Telephone, From Alexander Graham Bell to the iPhone.â⬠à Slate Magazine, Slate, 15 May 2012.ââ¬Å"The History of the Telephone.â⬠à Google Books.infoundiscoveredscotland.co.uk, Undiscovered Scotland: ââ¬Å"Undiscovered Scotland: Alexander Graham Bell.â⬠à Scotfax: Religion in Scotland on Undiscovered Scotland.A Century of Lawmaking for a New Nation: U.S. Congressional Documents and Debates, 1774 - 1875: The Alexander Graham Bell Family Papers. Charles Magnus.
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