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一、前言在云南建立以豆科牧草为主的混播改良草场已大面积推广,改良草场维持肥料的施用及草场管理方面的研究也取得可喜成果。研究表明,在合理施用维持肥料的前提下,牧草生长量与降雨量呈显著正相关(r=0.75)。在云南多数地区,旱季长达6个月(12月至次年5月),枯草期饲草不足是一大
I. INTRODUCTION The establishment of a mixed pasture that mainly relies on leguminous forages in Yunnan has been popularized on a large scale. The research on the application of pasture to maintain fertilizers and pasture management has also made gratifying achievements. The results showed that there was a significant positive correlation (r = 0.75) between the growth of forage grass and rainfall under the condition of rational application of manure maintenance. In most parts of Yunnan, the dry season lasts up to six months (December to May), and the shortage of grass in the hay is a big one