滴灌条件下水肥耦合对干旱区红枣产量的影响

在环塔里木盆地的阿克苏地区,采用随机区组布置方案,进行田间小区试验,研究了滴灌条件下水肥耦合对红枣产量的影响。试验结果表明,施肥量固定时,灌水量与产量相关性较好;灌水量固定时,施肥量与产量相关性较好。水对生育期红枣产量的效应大于肥料,水肥合理时,水肥为协同作用,交互效应使红枣产量明显增加。红枣生育期水肥耦合的最佳模式为"灌水量5 248 m3/hm2+施肥量1 572 kg/hm2"。滴灌与水肥耦合节水技术集成的最佳模式为"灌水量5 248 m3/hm2+施肥量1 048 kg/hm2"。

Coupling Effects of Water and Fertilizer on Yield of Chinese Jujube under Drip Irrigation in the Arid Area

Coupling effects of water and fertilizer on Chinese Jujube yield under drip irrigation were studied by field test,which based on design of random section in the Akesu area of Surround Tarim basin.The results showed that it have a better correlation between irrigation amount and yield under constant fertilizer,between fertilizer and yield under constant irrigation amount.Water effect is greater than fertilizer effect in the whole growth period.Coupling effects of water and fertilizer is synergistic effect when water and fertilizer is appropriate,can increasing Chinese Jujube yield.The best pattern is 5 248 m3/hm2 of irrigation and 1 572 kg/hm2 of fertilizer on coupling effects of water and fertilizer.The best pattern is 5 248 m3/hm2 of irrigation and 1 048 kg/hm2 of fertilize on integration pattern of water and fertilizer,drip irrigation and saving-water.