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引用次数: 0
摘要
在巴辛达 PAU 区域站进行了一项试验，研究不同地表滴灌线间距和灌溉水平（0.6、0.8 和 1.0 PET）对棉花生长和产量的影响。结果表明，滴灌的棉花产量和水分利用效率（WUE）明显高于传统的漫灌。在 0.8 PET 灌溉水平下，每行作物的滴灌产量最高，而在相同的滴灌线间距下，在 0.6 PET 灌溉水平下的用水效率最高。与每行作物的滴灌线相比，两行作物之间的滴灌线的初始生长（通过叶面积指数反映）较慢，但在播种 45 天后，所有滴灌线间距的生长速度相似。
Impact of Dripline Spacing on Cotton Growth and Yield
An experiment was conducted at PAU Regional Station, Bathinda, to study the impact of different spacing of surface drip lines and irrigation levels (0.6, 0.8 and 1.0 PET) on cotton growth and yield. The results revealed that cotton yield and water use efficiency (WUE) under drip was significantly higher than conventional flood irrigation. Maximum yield was achieved under drip line for each row of crop with irrigation level of 0.8 PET, whereas WUE was recorded for the same drip line spacing, but at 0.6 PET irrigation level. The initial growth (as reflected by leaf area index) was retarded for drip line in between two rows of crop as compared to drip line for each row of crop, but the rate of growth were similar for all drip line spacing after 45 days of sowing.
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