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为指导农民科学施肥,提高肥料利用率,增加经济效益,按照农业部“测土配方施肥项目的技术规范”和“安徽省‘3414’肥效田间试验总体方案”要求,在西溪南镇西溪南村进行了“3414”单季晚稻肥效试验,其目的是通过田间试验,进一步研究我区单季晚稻的最佳施肥量,为科学指导施肥提供依据。通过“3414”回归最优设计原理设置的双季晚稻肥效试验结果,获得肥料效应函数方程,由此数学模型得出理论氮、磷、钾最佳施肥量,其中纯N14.24kg/667m2,P2054.17kg/667m2、K2O3.75kg/667m2,最佳产量576.03kg/667m2。结合我地农业生产实际,将目标产量确定为580.00kg/667m2,氮、磷、钾建议推荐量分别为13～15kg/667m2、4～5kg/667m2、5～6kg/667m2。
In order to guide farmers in scientific fertilization, improve fertilizer utilization and increase economic benefits, according to the requirements of the Ministry of Agriculture, “Technical Specifications for Soil Testing and Fertilization Project” and “Anhui Province ’3414’ Fertility Field Test” The “3414” single-season late rice fertilizer efficiency test was conducted in Xixi Nancun Town, the purpose of which was to further study the best fertilization amount of single-cropped late rice in our district through field experiments to provide scientific basis for fertilization. Through the “3414” regression optimal fertilization test results of double-season late rice set by the principle of optimal design, the fertilizer effect function equation was obtained, and the mathematical model obtained the optimal nitrogen, phosphorus and potassium fertilization, of which pure N14.24kg / 667m2 , P2054.17kg / 667m2, K2O3.75kg / 667m2, the best yield 576.03kg / 667m2. Based on the actual agricultural production in our country, the target output is determined to be 580.00kg / 667m2. The suggested recommended quantities of nitrogen, phosphorus and potassium are 13 ~ 15kg / 667m2, 4 ~ 5kg / 667m2 and 5 ~ 6kg / 667m2, respectively.