摘要
为掌握贵州薏苡获得高产的最佳种植密度与施肥情况,采用4因素(密度、N、P2O5和K2O)5水平二次正交旋转组合设计,研究各试验因子对薏苡产量及构成因素的影响。结果表明:氮肥对薏苡产量的影响最大,其次是密度。薏苡高产的最佳方案:密度8 892株/667m2,氮肥(N)、磷肥(P2O5)、钾肥(K2O)施用量分别为25kg/667m2、27kg/667m2、36kg/667m2条件下,可得到417.66kg/667m2的理论产量,与实际产量(403.33kg/667m2)的各因素组合方案相比,增施磷肥能有效提高薏苡产量。
In order to explore the optimum planting density and fertilizing amount to obtain high yield of coix in Guizhou,orthogonal experiments with 4 factors and 5 levels were conducted to study the effects of various factors on coix yield and yield components.Results：nitrogen contributed the most to coix yield, followed by density. The optimum combination was as follows：density 8 892 plants/667m^2, N 25 kg/667m^2 ,P2 O5 27 kg/667m^2 ,K2 O 36 kg/667m^2 .Under these conditions the theoretical yield reached 417.66 kg/667m^2 ,compared with the actual yield 403.33 kg/667m^2 ,it could be concluded that increasing phosphatic fertilizer application amount could effectively enhance coix yield.
出处
《贵州农业科学》
CAS
北大核心
2014年第9期98-101,共4页
Guizhou Agricultural Sciences
基金
贵州省重点农业技术推广项目"薏苡高产栽培技术研究"
关键词
薏苡
密度
施肥
产量构成
贵州
coix
density
fertilizer
yield component
Guizhou
