摘要
在两点进行"3414"肥料试验,通过肥料效应函数拟合,研究了氮磷钾肥不同比例配施对大豆产量的影响。结果表明:氮磷钾肥配施能够显著提高大豆产量,单株粒数受磷施用量影响较大,百粒重受氮磷施用量影响较大。推荐的高产施肥量为:N75~85kg/hm2、P2O565~70kg/hm2、K2O45~55kg/hm2,比例为:N:P2O5:K2O=1.60:1.35:1;经济施肥量为:N65~75kg/hm2、P2O545~50kg/hm2、K2O30~40kg/hm2,比例为:N:P2O5:K2O=2:1.36:1。
Effect of different proportion of N, P, K on soybean yield was studied in the two places by use of "3414" test and fertilizer effect function fitting. The result showed that proportion of N, P, K improved soybean yield significantly, phosphorus fertiliz- er effected seed number per plant mainly, nitrogenous and phos- phorus fertilizer effected 100-seed weight significantly. It was recommended that fertilizer amount for high yield was N 75 - 85 kg/hm2, P20 565- 70 kg/hm2, K20 45 - 55 kg/hm2, the opti- mum proportion of N, P, K was 1.60:1.35:1, economical fertilizer amount was N 65- 75 kg/hm2, P20 545 -50 kg/hm2, K20 30 - 40 kg/hm2, the optimum proportion of N, P, K was 2:1.36:1.
出处
《大豆科技》
2011年第4期19-22,共4页
Soybean Science & Technology
基金
淮北市重大科技项目"大豆新品种选育及综合增产技术集成与示范"(2009-01-06)
关键词
夏大豆
配方施肥
3414试验
产量
产量构成
Summer soybean
Formula fertilization
3414 test
Yield
Yield components