贵州西、南部优良冬季青绿禾草种类筛选

Selection on Sorts of Fine and Green in Winter Herbage of Grass Family in Southwest Guizhou

通过对适应贵州西、南部地区的气候特点 ,冬春季仍然保持青绿并且继续生长的 11种野生或栽培的禾本科牧草进行种植试验 ,结果表明 :有 7种产草量较高 (2 50 0～5983kg/ 6 6 7m2 )、抗逆性较强、青绿期长 (2 2 0～ 36 5d)、营养价值高 (18.99%～ 2 0 .2 5% )、适口性好等优良特性的禾草种类。对解决贵州西、南部地区家畜严冬季节青绿饲草的平衡需求 ,增强家畜的越冬能力及商品牛羊的冬季育肥工作等将发挥其独到的作用。

Eleven kinds of wild and cultivates grasses being suited under the climate conditions southwest Guizhou and being grown up and keeping up green were planted to test. The result showed as follows. Seven kinds of grasses were higher for fresh yield (come up to 2500～5983 kg/667m 2) with stronger suitability, longer green period (220～365 days), higher nutritive value and well palatability. To solve the green grass problem for domestic animal in severe Winter term in southwest Guizhou, it is of vital importance for strengthening overwintering ability and for fattening of commodity cow and goat.