论文部分内容阅读
为建立水稻精确施肥技术指标体系,明确里下河地区建湖县境内水稻配方施肥方案,特做了不同土壤质地氮肥适宜用量及磷、钾肥使用效果试验,明确了氮肥使用量与产量的关系和磷、钾肥使用临界值,为今后合理使用氮、磷、钾肥料提供科学依据。
In order to establish the technical index system of rice precise fertilization and confirm the rice formula fertilization program in Jianhu County in the Lixiahe area, the suitable application amount of nitrogen fertilizer and the effect of phosphorus and potash fertilizers on different soil texture were specially made, and the relationship between the amount of nitrogen fertilizer and yield was clarified. Phosphorus and potassium use critical value for the rational use of nitrogen, phosphorus and potassium fertilizer to provide a scientific basis.