而增施有机肥可以改善土壤的团粒结构和理化性质，更有利于水肥的耦合作用。
More organic fertilizer can not only improve soil aggregates structure and basic character, but also be propitious to the effect of water and soil coupling.
蚯蚓类中微生物群落活性对土壤团粒结构可起重要作用。
Microfloral activity in worm may have an important effect on soil crumb structure.
采用在实验室培养和用淋洗管模拟田间淋洗的方法研究聚丙烯酰胺对沙土水稳性团粒结构改良作用，对氮、磷、钾养分保肥的作用以及其合理施用量。
This paper study on the effects of PAM on improving water stable aggregate and reducing nutrients loss from sandy soil, methods of Laboratory incubation and leaching were adopted.
应用推荐