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首页> 外文期刊>Cotton Reseach Journal >Evaluation of Drip and Poly-Mulching for Improving Water Use Efficiency and Productivity of Cotton -Maize Cropping System
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Evaluation of Drip and Poly-Mulching for Improving Water Use Efficiency and Productivity of Cotton -Maize Cropping System

机译：滴灌和地膜覆盖对提高玉米玉米种植系统水分利用效率和生产力的评价

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A field experiment was conducted during 2005-2006 to find out the response of winter cottonfollowed by summer maize to integrated use of drip and poly mulching as compared to conventional irrigation. Drip at 0.4 Etc (crop evapo-transpiration), Drip at0.8 Etc, Poly mulching + drip at 0.4 Etc, Poly mulching + drip at 0.8 Etc were evaluated against conventional irrigation and poly-mulching without drip. The results revealed that irrespective of the irrigation schedule, Poly-mulching improved the growthand seed cotton yield significantly than drip and conventional methods. The enhancement in seed cotton yield due to poly mulching and poly-mulch + drip ranged from 825 to 980 kg/ha, while the yield enhancement due to drip irrigation was 200-493 kg/ha incotton over conventional method. The total water requirement ranged form 57.3 to 92.7 ha cm and scheduling of irrigation at 0.4 Etc + Poly mulching recorded the highest water use efficiency (42.7 kg of seed cotton/ha cm) while the lowest was recorded under conventional method (16.10 kg of seed cotton/ha cm). In quality parameters, the span length recorded significant increase due to drip with 0.8 etc, poly-mulch + drip at 0.4 and 0.8 Etc. The yield of zero tilled summer maize raised after the cotton also influenced significantly due to poly-mulching as compared todrip alone and conventional method. The highest maize grain yield (6829 kg/ha) was achieved at poly-mulching + drip at 0.4 Etc which was 52.1 % higher than conventional method.
机译：在2005-2006年间进行了田间试验，以了解与常规灌溉相比，夏玉米跟冬玉米对滴灌和覆膜综合使用的响应。相对于常规灌溉和不滴水的多地覆膜，评估了0.4 Etc的滴水（作物蒸散），0.8 Etc的滴水，0.4 Etc的覆膜+滴水，0.8 Etc的覆土+滴水。结果表明，与常规灌溉方式相比，无论采用何种灌溉方式，覆膜均能显着提高棉花的生长和籽棉产量。与常规方法相比，由于多地覆盖和多地+滴灌导致的籽棉产量提高了825至980 kg / ha，而由于滴灌带来的产量提高了200-493 kg / ha棉。总需水量在57.3至92.7公顷之间，在0.4 Etc +地膜覆盖条件下灌溉计划记录的最高用水效率（42.7千克籽棉/公顷），而在常规方法下记录的最低用水量（16.10千克种子）棉花/公顷厘米）。在质量参数上，跨度长度因滴灌0.8等，多覆盖+滴灌分别在0.4和0.8 Etc下而显着增加;棉花后零耕夏玉米的产量也比多滴显着影响单独和常规方法。在0.4 Etc的多覆盖+滴灌条件下，玉米最高产量（6829 kg / ha）比常规方法高52.1％。

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