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阐述20年来我国土壤养分变化的特点,提出用肥应坚持稳氮、磷,增钾肥、微肥、有机肥。测土配方施肥中,还应注意:土壤障碍因子、某种元素临界法与供应强度,肥料利用率等问题。对专用肥配方、复混肥的浓度、复混肥标准的一些规定从农艺角度提出一些意见。最后介绍几种常见作物的复混肥配方及施肥量、施肥方法。
The characteristics of soil nutrient changes in our country over the past 20 years are expounded. It is suggested that nitrogen, phosphorus, potassium, micronutrients and organic fertilizers should be insisted on using fertilizers. Soil testing and fertilizer should also pay attention to: soil barrier factor, a critical element of the element and supply intensity, fertilizer utilization and other issues. The special fertilizer formula, the concentration of compound fertilizer, compound fertilizer standards for some provisions from the agronomic point of view put forward some opinions. Finally, several common crop compound fertilizer formula and fertilizer, fertilization methods.