裂区设计下分析影响冬牧70-黑麦草产量的因素

Ananlysis of the Factors that Affected the Production of Wintergrazer-70 Under Split Zone Design

在裂区试验设计下,对影响冬牧70黑麦草产量的9个因素进行了方差分析,结果表明:播期、幼苗活力、密度和播种方式4个因素决定其产量,具体为春播产量高于秋播、撒播方式高于穴播和条播,密度在80%以上,幼苗活力达到9.0以上时产量最高。进一步通过因子降维分析、成分总值求和得知,影响产量有3个主成分4个因素,4个主要影响因素影响大小排序为:播期>幼苗活力>密度>播种方式。

under the split plot experiment design,the nine factors which influence the production of wintergrazer-70 has carried on the analysis of variance,the results showed that the sowing date,seedling vigor,density and sowing way four factors determine the yield,specific ways for the spring sowing yield higher than that of autumn,sowing than dibbling and drilling,density is above 80%,seedling vigor reaches more than 9.0 the highest yield.Further,through factor reduction analysis and summation of total value of components,it was found that there were 3 principal components and 4 factors affecting yield,The four main influencing factors were as follows:seeding date,>seedling activity,>density,and>seeding method.