滴灌水氮耦合对北疆春小麦生长的影响

在滴灌条件下,研究了不同水肥处理对北疆春小麦干物质积累和产量的影响。结果表明,施氮量对春小麦干物质积累作用大于灌水量,表现在干物质积累量、养分吸收量、籽粒产量3个方面,水氮耦合效应的作用最小。灌水量、施氮量与以及耦合效应与产量的回归分析表明,水氮耦合作用为正效应。表明适当的灌水和施肥相结合,对春小麦产量有增加效应,在单...

Effects of Water-nitrogen Coupling on the Development of Spring Wheat under Drip Irrigation in North of Xinjiang

Influence of different water powder treating drip irrigation on the accumulation quantity and yield of spring wheat were studied in north Xinjiang under the drip irrigational conditions.The results showed that nitrogen have more the effect than water on the spring wheat dry matter accumulation,nutrient accumulation and seed cotton yield,and water and nitrogen coupling effect of the function smallest.Mathematical model for spring wheat yield and its main affecting factors water,nitrogen and water and nitrogen coupling its was established,which was,water and nitrogen coupling making positive effect suggests that proper irrigation and fertilization combined with increased yield effect,water and Nitrogen application alone plays a role to yield growth,but over-irrigation and excessive fertilizer making negative effects for production,so the reasonable irrigation and fertilization conducive to drip irrigation achieve high yield.