半干旱区氮磷钾肥对糜子产量的影响  

Effects of Application Ratios of Nitrogen,Phosphorus and Potassium on Yield of Broomcorn Millet in Semi-arid Region

作　　者：王宇先[1] 李清泉[1] 刘玉涛[1] 连永利[1] 杨慧莹[1] 闫峰[1] 马波[1] 胡继芳[1] 兰红宇[1] 

机构地区：[1]黑龙江省农业科学院齐齐哈尔分院,黑龙江齐齐哈尔161006

出　　处：《安徽农业科学》2013年第10期4334-4335,共2页Journal of Anhui Agricultural Sciences

基　　金：国家谷子糜子产业技术体系资助项目(CARS-07-06B)

摘　　要：[目的]通过对糜子不同施肥量对产量影响的研究,为糜子高产栽培技术提供理论依据。[方法]采用三元二次通用旋转组合设计,对糜子产量与施氮量、施磷量、施钾量的定量关系进行研究,建立产量为目标函数的数学模型。[结果]建立的回归模型N、K、P肥对产量的影响达0.05显著水平。各栽培因子对糜子产量的影响从大到小为氮肥>磷肥>钾肥。[结论]通过方程模拟寻优得出,糜子产量大于4 986 kg/hm2的栽培方案为:施纯氮量91.41～107.97 kg/hm2、施纯磷量77.11～97.78 kg/hm2、施纯钾量76.09～95.14 kg/hm2。[Objective] The effects of millet different fertilizing amount on yield traits were studied to provide a theoretical basis for high yield cultivation techniques.[Method] Based on the quadratic general rotary unitized design,the effects of the applications of nitrogen,phosphate and potassium on the yield were studied.The mathematical model of the production of the objective function was established.[Result] N,K,P applications affected the yield significantly.In terms of the effect on the yield,the order was N>P>K.[Conclusion]According to the model,the fertilized plan whose yield surpassed 4 986 kg/hm2 was 91.41-107.97 kg/hm2 N,77.11-97.78 kg/hm P2O5 and 76.09-95.14 kg/hm2 K2O.

关 键 词：糜子 氮、磷、钾肥 产量 效应 

分 类 号：S516[农业科学—作物学]