【摘要】 本文应用联立方程模型，建立了威优青杂交早稻的农艺措施与每公顷产量、每公顷有效穗数、每穗实粒数、千粒重四项生态指标间的联立方程模型，使之比相应的正交旋转回归模型更符合实际情况，并应用此联立模型给出了产量≥9000kg／ha的最适宜的栽培方案，依此可以更有效地指导生产，以获得高产．更多还原

【Abstract】 One simutaneous equation model for a early rice hybrid-Weiyouqing was put forward according the relationships between the agronomy treatments and its ecophenotypes such as yield,number of effective spikes per hectare,number of grains per spike and 1000-grain-weight.Based on that,a optimum culture system for yield≥9000kg/ha was presented,which could be used to direct the practices.The model was documented to be more suitable to the practices to a orthogonal revolving regression model.更多还原