一、配方施肥技术的发展和现状随着垦区农业生产的发展,化肥用量已逐年增加。为了以最小的施肥量获得最大的经济效益,垦区先后试验了各种经济施肥技术。70年代初,研究了作物的营养诊断技术,初步拟定了黑土 First, the development of formula fertilizer technology and the status quo With the development of agricultural production in reclamation area, the amount of fertilizer has increased year by year. In order to obtain the greatest economic benefits with the smallest amount of fertilizer, reclamation has tested a variety of economic fertilization techniques. In the early 1970s, the nutrition diagnosis technology of crops was studied and the black soil was preliminarily formulated