种植绿肥作物主要是为使土壤更加肥沃。
A green manure is a crop grown mainly to improve soil fertility.
苗圃要广开肥源，常年积肥和种植绿肥。
The nursery should open fertilizer sources, manure and planting perennial green manure.
山东烟田利用秋冬空闲季节种植绿肥，可起到换茬、养地、改土的作用。
Green manure is an important kind of organic manures and plays an important role in rotation, improving quality of soil nutrients.
如果全量秸秆还田结合冬季种植绿肥，土壤饱和固碳量则可以在稻田土壤现有碳储量的基础上平均提高65．77％。
The saturated carbon storage of 100% straw combined with green manure incorporation was 65.77% higher than that of current carbon storage.
因此，大量施用有机肥，合理施用化肥，调整种植结构，扩种绿肥是培肥该农场土壤的主要措施。
Thus, to improve soil fertility in this farm, the main measures should be the application of efficient organic manure and chemical fertilizer, adjusting plant structure and planting green manure.
因此，大量施用有机肥，合理施用化肥，调整种植结构，扩种绿肥是培肥该农场土壤的主要措施。
Thus, to improve soil fertility in this farm, the main measures should be the application of efficient organic manure and chemical fertilizer, adjusting plant structure and planting green manure.
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