摘要
为了探明不同氮磷钾配比对伊犁河谷冬小麦产量的影响,为高产栽培提供理论依据和技术支撑,采用"3414"平衡施肥试验设计,以氮、磷、钾为供试因子,产量为目标函数,对伊犁河谷冬小麦施肥模型进行研究。根据数学模型得出最佳施肥量为:N=201.6kg/hm2,P2O5=144.9kg/hm2,K2O=24.3kg/hm2,产量可达9213.4kg/hm2。
To investigate the effects of different combinations of nitrogen ,phosphorus and potash fertil- izers amount and application period on winter wheat yield in Yili river valley, to provide theoretical ba- sis and technological for high-quality and high-yield cultivation.By useing the ＂3414＂balance applica- tion design to build the mathematical model for the relationship between wheat yield.the optium fertilizers scheme obtained from the model is 201.6kg/hmZurea, 144.9kg/hm^2 superphosphate and 24.3kg/hm^2, and the yield could reach 9213.4kg/hm^2
关键词
冬小麦
施肥
模型
winter wheat
fertilization
mathernaticslnodel
