摘要
在大田条件下 ,应用随机组合设计方法 ,研究了石灰性草甸土壤施用硅肥对水稻产量及其构成因素的影响。结果表明 ,硅肥的施用对水稻产量的形成有极显著的促进作用 ,硅素与产量的回归方程为y =6 953.4 +7.0 4 2x - 0 .0 2 93x2 。硅素主要通过影响千粒重、结实率、穗粒数、有效穗而促进产量的形成。
The experiment was conducted on calcareous soil of Shanxi with design of ordinary regression of six factors. Under the condition silicon fertilizer(Si) to Rice was studied for its effects on yield and component factors.The results were the following:Si fertilizer can significantly increase rice yield by significantly increasing of 1 000 grain weight,effective ears,seeds of per ear and solid seed percent ?The regression equation of Si fertilizer to yield is y=6953.4+7.042x ** - 0.0293 x 2** ?
出处
《山西农业科学》
2002年第4期42-44,共3页
Journal of Shanxi Agricultural Sciences
