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在全国16个省(区)进行的五年试验证明,发展肥饲兼用绿肥,可以充分利用土地和光热能资源,提高作物产量,改善农田生态环境和培肥地力。发展绿肥饲草可为农区畜牧业发展提供优质蛋白质饲料,节省饲料粮消耗,是建立持续农业生产体系的重要措施。试验表明,种植肥饲兼用绿肥,土地利用率大大提高,土地当量值(LER)平均达到2.3,豆科根茬可使下茬作物增产35%左右。豆科饲草喂畜,转化率高,综合经济效益显著,一般亩增值达50—190元。
Five-year experiments conducted in 16 provinces (regions) across the country have proved that developing green manure with both fertilizer and manure can make full use of land and light and heat energy resources, increase crop yields, improve farmland ecological environment and fertility. The development of green manure forage can provide high-quality protein feed for the development of livestock husbandry in the rural areas and save the consumption of feed grains. It is an important measure to establish a continuous agricultural production system. Experiments show that planting green manure and fertilizer, land use efficiency greatly increased, land equivalent value (LER) an average of 2.3, legume stubble crop yield under 35%. Leguminous forage feeding livestock, high conversion rate, significant economic benefits, the general value-added acres amounted to 50-190 yuan.