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通过长期科学研究和生产实践,人们摸索出看土壤、看作物、看肥料、看气候来确定施肥时期、种类、用量和方法,可以提高地力,充分发挥肥效,达到增产目的。一、看土施肥:砂土地因土壤松软,土性不良,水分养分容易流失,应多施含有机质丰富的草炭、堆肥、黄粪、绿肥等,增加土壤保水保肥能力。化肥应分期施用。粘土地土质紧密,通气透水性差,应多施用农家肥料,改善土壤的通气透水状况,可一次施用较多的氮肥。白浆土应增施有机肥料,配合
Through long-term scientific research and production practices, people explore the soil, see crops, look at fertilizers, look at the climate to determine the fertilization period, type, amount and method, can improve fertility, give full play to fertilizer, to achieve the purpose of increasing production. First, to see soil fertilization: sandy soil due to soil soft, poor soil properties, easy to lose water and nutrients should be applied more organic matter rich in peat, compost, yellow manure, green manure, increase soil water retention ability. Fertilizers should be administered on a schedule. Clay soil is tight, poor ventilation, should be applied farmer fertilizer, to improve the aeration of the soil conditions, more nitrogen can be applied once. White soil should be applied organic fertilizer, with