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为优化江苏省响水县夏玉米测土配方施肥技术,通过夏玉米2+X优化配方施肥氮肥总量控制试验,得出响水县夏玉米在壤质脱盐土地区最佳施氮量为19.00~22.00 kg/667 m2,油泥土地区最佳施氮量为19.00~21.00 kg/667 m2。农作物优化配方施肥技术历来被人们所重视,其不仅是影响作物产量的重要因素,也是提高产量、增加效益、节省成本的可控措施,实现了根据作物的需肥特点和土壤肥力情况进行科学施肥。氮素是玉米生长必需的大量元素
In order to optimize soil testing and fertilization technology of summer maize in Xiangshui County of Jiangsu Province, the optimum amount of nitrogen fertilizer was optimized by summer maize 2 + X. The results showed that the optimum nitrogen application rate of summer maize in loamy soil was 19.00 ~ 22.00 kg / 667 m2, and the best nitrogen application rate in the soil area is 19.00-21.00 kg / 667 m2. Crop optimization formula fertilization technology has always been valued people, not only is an important factor affecting crop yield, but also improve production, increase efficiency and cost-saving measures to achieve the crop according to fertilizer characteristics and fertility of the state of scientific fertilization . Nitrogen is a large number of elements necessary for the growth of corn