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高产田中对玉米施肥的研究表明:在不减少产量的前提下,增加P、K基施量,减少N追施量的优化施肥要比习惯施肥节约40%,氮肥利用率提高程度最高达44.30%,养分资源得到合理利用。除节约成本外,优化施肥还能使土壤硝态氮残留量减少,保护环境,实现耕地的可持续发展。
The research on fertilization of corn in high-yielding field showed that the optimal fertilization with increasing P and K base amount and reducing the amount of N topdressing was 40% less than the conventional fertilization and the highest nitrogen utilization rate was 44.30% , Nutrient resources are used reasonably. In addition to cost savings, optimizing fertilization can also reduce soil nitrate nitrogen residues, protect the environment and achieve sustainable development of cultivated land.