【作者】 张明忠； 朱红业； 冯光恒； 张映翠； 龙会英； 金杰； 史亮涛； 江功武； 杨洪祥；

【Author】 ZHANG Ming-zhong1, ZHU Hong-ye1, FENG Guang-heng1, ZHANG Ying-cui2, LONG Hui-ying1, JINJie1, SHI Liang-tao1, JIANG Gong-wu1, YANG Hong-xiang1 (l.Research Institute for Tropical Eco-agricultural Sciences, Yunnan Academy of Agricultural Sciences, Yunnan Yuanmou 651300, China; 2. Tobacco Research Institute of Chuxiong state, Yunnan Chuxiong 675000, China)

【机构】 云南省农业科学院热区生态农业研究所； 楚雄州烟草科学研究所；

【摘要】 以不同生长周期进行刈割新建植的热带牧草-王草,对其生物学特性和牧草产量的影响试验,得出干热区雨养条件下王草再生性能达最佳时的生长期和刈割次数。试验结果表明:作为青刈饲喂或青贮的牧草,王草生长期一般在35-45 d,经济性状较好;作为种苗生长期保持在90 d产量较高。高频率刈割可减少王草生长期的拔节数,提高生长期分蘖数和粗壮度。更多还原

【Abstract】 The biological characteristic and yield of pennisetum ×P.americanum cv.No.4 was studied, which is a new planted tropic pasture through different growing cycle cutting. The best growing period and cutting times of pennisetum ×P.americanum cv.No.4 for it’ s regrowth under rain-mowing in dry hot area was get. The result showed that as a greenness for forage depasturing or silage, the better economic quality was in it’s 33-45 growing days; as a seedling period in it’s 90 growing days, the yield was highest. The high frequent cutting could decrease the jointing number and improve the tillering number and sturdiness degree in growing period.更多还原