国内外对大豆肥田机制的研究报道不多,本试验通过对大豆茬土的微形态观察,从微结构角度探讨了大豆肥田的机理。一、试验方法本试验是1988年在东北农学院香坊试验农场试验地进行的,样品取自于三区轮作的大豆地,前茬为玉米,在大豆播种前和收获 At home and abroad, there are not many reports on the mechanism of soybean fertilizer field. In this experiment, through the observation of the micro-morphology of soybean stubble soil, the mechanism of soybean fertilizer field was discussed from the microstructure perspective. First, the test method This experiment was conducted in 1988 in Northeast Agricultural College Xiangfang experimental farm trial, the sample taken from the three areas of rotation of soybean, crop before the corn, before sowing and harvesting of soybean