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紫花苜蓿(Medicago Sative)在美国是一种维持土壤生产力最好的工具之一,美国农业部农业科学院的科学家们,为了提高它在轮作上的价值,在基础研究中将紫花苜蓿象一年生作物那样利用。
Medicago Sative is one of the best tools to maintain soil productivity in the United States. Scientists from the U.S. Department of Agriculture’s Academy of Agricultural Sciences, in order to increase their value in rotation, used alfalfa in basic research like annual crops use.