二茬草即每年收完草后又新生出来的牧草。群众往往习惯利用二茬草,认为其有营养,畜爱吃,增膘快,是秋季牲畜抓膘的好牧草。利用二茬草虽然解决了牲畜抓膘所需部份饲草问题,但严重影响了牧草的生长。使牧草多不能贮藏养分而安全越冬,造成第二年的发芽率下降,返青推迟现象。经试验证明:利用过二茬草的草原,牧草部分根茎腐烂.利用 The second crop of grass that is finished each year after the grass has been born grass. The masses are often accustomed to use the second crop of grass, that its nutrition, animal husbandry eat, increase fast, is a good grasp of autumn livestock grasses. Although the use of two stubble grass to solve part of the livestock grasping forage problems, but seriously affected the growth of forage grass. So that more grass can not be stored safely and wintering, resulting in the second year of germination rate decline, return to green postponed phenomenon. The test proved that: the use of stubble over the grassland, grass, some roots rot