自然状况下土壤团聚体特征以及模拟毛管水浸润对其影响表明:0.25～3mm团聚体的胶结物质——有机质、细粉砂粒和粘粒多,微团聚体的水稳性强,保持的水分多。毛管水浸润下,土壤颗粒的团聚性增强。1～3mm团聚体构成的土壤效应最好;0.25～3.0mm构成者,固、液、气相比例适宜,水、热、气、肥协调,能促进小麦的生长发育。 The characteristics of soil aggregate under natural conditions and the effects of simulated capillary water infiltration on it show that the aggregates of 0.25 ~ 3 mm aggregates have many organic matters, fine silt and clay, and the micro-aggregates have strong water-stability and high water retention . Under capillary water infiltration, the agglomeration of soil particles is enhanced. 1 ~ 3mm aggregates formed the best soil effect; 0.25 ~ 3.0mm composition, solid, liquid, gas phase ratio, water, heat, gas and fertilizer coordination, can promote the growth and development of wheat.