安宁河流域洋葱——水稻轮作氮磷用量及分配研究

本试验采用二次饱和D-最优设计对安宁河流域洋葱-水稻轮作氮磷用量及分配进行了研究,建立了洋葱-水稻全年产量函数模型,拟定了作物优质高产和保持土壤肥力的优化施肥方案,为安宁河流域洋葱、水稻两大作物的持续发展提供施肥依据。

Study on the Dosage and Distribution of Nitrogen and Phosphor of Onion and Rice Rotation in the Anning River Valley

The dosage and distribution of nitrogen and phosphor of onion and rice rotation in the Anning river valley were studied by using D-saturation optimum design.This paper built year-yield of onion and rice function model,and drew up an optimal fertilizer program for the high quality and grain yields and keeping the soil fertility,which provided a basis for the sustainable development of onion and rice in the Anning river valley.