宁夏国营渠口农场种植向日葵作绿肥,产草量多,肥效高,为发展绿肥生产,培肥地力,提高粮食单位面积产量探索出一条新途径。宁夏的国营农场目前大都是种植草木栖和箭舌豌豆作绿肥。这个场认真总结了向日葵秸秆还田取得粮食增产的经验,又试验复种向日葵作绿肥。自1978年以来,经过连续四年秸秆还田和复种绿肥, Ningxia Guanyuankou sunflower planting green manure, more grass, more fertilizer, for the development of green manure production, fertility and improve grain yield per unit area to explore a new way. Ningxia’s state-owned farms are mostly planting grass habitat and arrow tongue peas for green manure. This field summed up the sunflower straw to obtain grain production experience, but also test the sunflower for multiple crop manure. Since 1978, after four consecutive years of straw returning and multiple cropping of green manures,