Because of the nitrogen fixation of legumes, even though legume forages absobed more nitrogen than grass forages, the soil nitrogen and organic matter used by legume forages were less than grass forages.
Because of the nitrogen fixation of legumes, even though legume forages absobed more nitrogen than grass forages, the soil nitrogen and organic matter used by legume forages were less than grass forages.
豆科牧草耗氮量虽然比禾本科牧草多，但由于豆科牧草具有固氮作用，因而对土壤全氮和有机质的消耗量却比禾本科牧草低。