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对砂质潮土区花生施用氨肥的时期及氮肥与磷肥适宜用量和配比进行了研究,建立了氯、磷肥料效应的函数模型,分析了氮、磷肥的产量效应及其互作效应,分别求得了最高产量、经济最佳产量以及不同产量水平最低成本的氮、磷肥适宜用量和比例。
The period of application of ammonia fertilizer to peanut in sandy loam area and the suitable amount and proportion of nitrogen and phosphorus fertilizer were studied. The function model of chlorine and phosphorus fertilizer effect was established. The yield effect and its interaction effect of nitrogen and phosphorus fertilizer were analyzed. Respectively, obtained the highest yield, the best economic output and the lowest production costs of different levels of nitrogen and phosphorus fertilizer appropriate proportion and proportion.