配方施肥是综合运用现代农业科技成果,根据作物需肥规律,土壤供肥性能与肥料效应,在有机肥为基础的条件下,产前提出(?),磷、钾或微肥的适宜用量和比例,以及相应的施肥技术。配方施肥的内容,包含配方和施肥两个程序,“配方”的核心是根据土壤、作物状况,产前定肥、定量。目标产量确定后,按产量要求,估算作物需要吸收多少氮、磷、钾,根据土壤养分的测试值计算土壤供应情况,以确定氮、磷、钾肥料的适宜用量。如土壤缺少某一种微量元素或作物对某种微量元素反 Formula fertilization is a comprehensive utilization of modern agricultural science and technology achievements, according to the law of crop demand, soil fertility and fertilizer effect, under the conditions of organic manure, prenatal proposed (?), Phosphorus, potassium or fertilizer and the appropriate amount and Proportion, and the corresponding fertilization technology. The contents of formula fertilization, including formula and fertilizer two procedures, “formula” is based on the core of the soil, crop status, prenatal fertilizer, quantitative. After the target output is determined, estimate the amount of N, P and K needed by the crop according to the yield requirement. Calculate the soil supply according to the soil nutrient test value to determine the appropriate amount of nitrogen, phosphorus and potassium fertilizers. If the soil is missing a trace element or crop against a trace element