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合理施用氮素化肥是决定水稻高产稳产成败的关键.目前,我省水稻施肥中存在氮肥用量过高、分蘖肥比重过大和投入的化肥品种不平衡(氮多,磷少,钾、硅肥不足)的问题,导致抗性不强、产量不高. 本项研究从总结经验入手,借鉴日本经验,试图通过重施基肥(全层施肥),提高肥效,减少用肥量;减少分蘖肥用量,实现平稳促进,协调水稻群体和个体关系;及适当增施穗、粒肥,争取最佳经济效益.
Reasonable application of nitrogenous fertilizer is the key to the success or failure of high and stable yield of rice.Nowadays, there is an imbalance of nitrogenous fertilizer, ), Resulting in resistance is not strong, the yield is not high.This study starts from the summary of experience, drawing on Japanese experience, trying to re-apply base fertilizer (full-thickness fertilization), improve fertilizer efficiency, reduce the amount of fertilizer; reduce the amount of tillering fertilizer, Achieve smooth promotion, coordinate the relations between rice groups and individuals, and increase ear and grain fertilizer as appropriate for the best economic benefits.