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本试验比较了五种豆科牧草在新垦红壤上的共生固氮效果，接菌每亩可固氮２ｋｇ左右，增产鲜草１２３．１～４０１ｋｇ，说明接种根瘤菌剂是提高豆科牧草产量和固氮量的有效措施。
This experiment compared the symbiotic nitrogen fixation effect of five leguminous forages on the newly cultivated red soil. The inoculation bacteria per acre could be about 2kg per hectare and yield fresh grass 123.1 ~ 401kg, indicating that inoculation with rhizobium is the key factor to improve the yield and nitrogen fixation Quantity of effective measures.