半干旱地区品种、密度及叶面调控对大豆单株产量的影响

Effect of Varieties、Densities and Leaf Regulation Technology on Soybean Single Plant Seed Yield in Half-drought Area

在黑龙江省半干旱地区,采用裂裂区设计,研究了3个品种、3个密度、8种叶面调控方法对大豆单株产量的影响,旨在为半干旱地区大豆高产调控技术提供理论依据。试验结果表明:大豆单株粒重极显著受品种和密度影响,密度和叶面调控技术的互作也对其产生显著影响。促进型调节剂结合叶面肥的供应可极显著提高单株产量。叶面调控效果在不同品种、不同密度下存在差异。叶面调控技术对垦农4号大豆、抗线4号大豆及低密度大豆群体的单株产量调控效果达到显著水平。

In order to attain theoretical basis on soybean high-yield regulation technology,we had reseached the effect of three varieties,three densities and eight leaf regulation technologies on soybean single plant seed yield through Split-split plot experiment in half-drought area in Heilongjiang province.The results indicated：the variety and density significantly affected the single plant seed yield of soybean,as well as the interaction of density and leaf regulation technology.The promoting type plant growth regulator combined with foliar fertilizer can improve the yield per plant very significantly.The effects of leaf regulation in different varieties and different densities are different.The regulatory effects on yield per plant by leaf regulation technology and low-density populations of Kennong 4 and Kanxian 4 soybean was significant.