夏大豆密肥效应模型的研究

Study on Effect Model of Plant Population and Fretilizer of Summer Soybean

根据Ｄ－饱和最优回归设计田间试验测得的参数，建立产量目标函数的密、肥效应模型，并依此得出高产最佳密度为１２．２９４株／亩，最大施肥量为磷酸＝铵３５．２９ｋｇ，并对单因子及两因子工作效应作了剖析，从产量性状的通径分析得出：夏大豆高产栽培以合理密植，力争饱荚数、确保荚粒数为主攻方向。

According to the parameters obtained from field experiment planned in D-saturation regression design, the yield modal about plant population and fertilizer was established It shows that proper plant population is 12. 29 kilo-plant per mu, and the bigest yield of (NH4)2 HPO4 was 35.29kg/mu. According to profiling actions of single factors and interaction between two factors, and path analysis of yield,main cultural meusres are proper densely planting,and getting more number of nuts per plant and balancing number of beaus per nut.