白银地区四倍体刺槐不同刈割期的首茬性状

Characters of First Stubble of Tetraploid black Locust in Different Cutting Period in Baiyin Region

对不同品种的四倍体刺槐进行适应性试验,研究不同品种不同刈割期株高、分蘖数、茎叶比及生物学产量的变化。结果表明:四倍体刺槐能适应白银地区的环境条件,且生长良好;四倍体刺槐饲料林在6月25日生长量达到最大;四倍体刺槐营养价值高,茎叶比大,鲜嫩多汁,对家畜育肥效果好。

Different varieties of Tetraploid black Locust were conducted adaptability tests. The variation of plant height of dif- ferent cutting period, tiller number, stem-leaf ratio ＆ biological yield of different varieties were studied. Result shows that： Tetraploid black Locust can adapt to environmental condition of Baiyin region, growing well; the maximum amount of the forage forest of Tetraploid black Locust was got on the 25 ,June;Tetraploid black Locust ,which is freshness ＆ tenderness ＆ succulent, have high nutritional value ＆ large stem-leaf ratio, and have well fattening effect on livestock.