摘要
采用落盘式测草盘在休闲草地、轮牧草地和连续放牧草地进行了测产试验.结果表明,在天然草地中使用非破坏性的落盘式测草仪测定牧草产量是可行的,牧草压缩高度和牧草产量具有良好的回归关系(r2=0.64-0.90),平均每1 cm压缩高度相当于69-250 kg/hm2的牧草产量.
Herbage mass is a function of sward height and density. A rise-plate meter was used as a nondestructive method to measure herbage mass in steppe by rotational grazing, continuous grazing or without grazing. The results showed that the rise-plate meter could be used to measure the herbage mass in natural steppe, because there were good regressive relation between the herbage mass and the compressed sward high （r^2 is 0. 63 -0. 90） under different utilization of the pasture. One centimeter of compressed sward height related about 69 - 252 kg/hm^2 of herbage mass.
出处
《华南农业大学学报》
CAS
CSCD
北大核心
2007年第2期13-16,共4页
Journal of South China Agricultural University
基金
国家科技部"十五"国家重点攻关项目"北方牧区现代化奶业生产技术集成与示范"(2002BA518A14-4)
关键词
牧草压缩高度
测产盘
牧草产量
天然草地
compressed sward height
rise-plate meter
herbage mass
steppe
