【摘 要】
：
关于我省沿江圩区稻田的合理施肥问题,作者已在前报中,根据多年多点的试验资料,应用生物统计方法,针对不同的土壤肥力状况和产量水平建立起施肥效应函数,并由函数方程分别计
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关于我省沿江圩区稻田的合理施肥问题,作者已在前报中,根据多年多点的试验资料,应用生物统计方法,针对不同的土壤肥力状况和产量水平建立起施肥效应函数,并由函数方程分别计算出经济合理的最佳施肥量。为了使田间试验结果能够扩大应用,氮肥的施用可以考虑从供求关系出发,来估算其适宜用量。估算公式是:
On the rational fertilization of paddy fields in the polder area along the Yangtze River in our province, the author has previously established fertilization effect functions according to multi-year experimental data and applied biometric methods to different soil fertility and yield levels, The equations calculate the best and most economical fertilizer. In order to expand the field test results can be applied, the application of nitrogen fertilizer can be considered from the relationship between supply and demand to estimate the appropriate amount. The formula is:
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