为了改变单独种植燕麦草要施用大量氮肥的状况,法国农场主发明了将燕麦草与白三叶草混种的方法,可充分吸收大气中的氮,能节省90%氮肥的施用量。用其混种怍物饲喂牲畜,因有较高的营养价值,从而大大增加了牲畜产奶量。混种方法是:白三叶草种籽用量为30—40%,燕麦草种籽为60—70%。充分混拌后于8—9月份播种 In order to change the situation of applying a large amount of nitrogen fertilizer to oat grass alone, French farmers invented a method of blending oat grass and white clover to fully absorb the nitrogen in the atmosphere and save 90% of the nitrogen fertilizer. Feeding livestock with their mixed breeds has greatly increased the milk production of livestock because of their higher nutritional value. Hybrid methods are: white clover seed content of 30-40%, oat grass seeds 60-70%. After full mixing in August-September seeding