摘要
刈割频率对皇草和杂交狼尾草越冬影响的实验表明，两者的根系生物量、根系养分贮量、越冬返青率和越冬产量均随刈割次数的增加而减少，但影响程度两者略有不同。刈割次数对杂交狼尾草的越冬返青率的影响更大，皇草的根系生物量和越冬产量则随刈割次数的增加而明显下降，本文还就如何减低刈割对牧草越冬的影响进行了讨论．
Effect of harvesting frequency on overwintering of two forage grasses, hybrid elephant grass (Pennisetum purpureum × P. glaucum) and hybrid pearl millet (P. glaucum × P purpureum), were studied. The results showed that the root biomass, nutrient storage in roots, regrowth rate, and fresh yield of the overwintering grasses were decreased with the increase of harvesting frequency. The effect of harvesting frequency on regrowth rate of hybrid pearl millet was greater than that of hybrid elephant grass. Root bi...
出处
《热带亚热带植物学报》
CAS
CSCD
2000年第S1期52-58,共7页
Journal of Tropical and Subtropical Botany
关键词
刈割频率
皇草
杂交狼尾草
根系生物量
返青率
产量
越冬
Harvesting frequency
Hybrid elephant grass
Hybrid pearl millet
Root biomass
Regrowth rate
Yield
Overwintering
