水氮互作对南疆膜下滴灌棉花生长及水氮利用效率的影响OA
Effects of Water-nitrogen Interactions on the Growth and Water and Nitrogen Use Efficiency of Drip-irrigated Cotton under Membrane in Southern Xinjiang
水肥是影响作物生产力水平的重要物质基础,探索水氮互作对南疆膜下滴灌棉花生长、籽棉产量以及水氮利用效率的影响.试验设计4个施氮水平(底肥+追肥:0+0、84+225 kg/hm2、84+300 kg/hm2、84+375 kg/hm2),分别记为N1、N2、N3、N4;每个施氮水平设计3个依据潜在作物需水量与降雨量差值(W=ETc-P)确定的不同灌水水平(0.8 W、1.0 W、1.2 W,分别记为W1、W2、W3).结果显示,土壤中硝态氮主要分布…查看全部>>
Water and fertilizer is an important material basis affecting crop productivity.To explore the effects of water and nitrogen interaction on cotton growth,seed cotton yield and water and nitrogen use efficiency under film drip irrigation in southern Xinjiang.Four nitrogen application levels(base fertilizer+topdressing:0+0,84+225 kg/hm2,84+300 kg/hm2,84+375 kg/hm2)were designed and recorded as N1,N2,N3,N4,respectively.For each nitrogen application level,three …查看全部>>
周望
华北水利水电大学 河南,郑州 450046
农业工程
水氮棉花生长与产量水氮利用效率
water and nitrogencottongrowth and yieldwater and fertilizer use efficiency
《现代农业研究》 2024 (6)
30-37,8
国家棉花产业技术体系建设专项资金项目(项目编号:2022YFD1900502)
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