Translation of "fixed nitrogen" into Chinese

Soil fertility is enhanced at each cropping cycle and although Desmodium fixes nitrogen, manure from livestock restores nitrogen and other important nutrients.

每一个种植周期都加强了土壤的肥力。 虽然狼尾草能够固氮,但是牲畜的粪便能还原氮和其他重要的营养素。