摘要
利用补播方法改良退化人工草地,速度快,效果好。草地覆盖度由补播前的51.8%提高到补播后的98%,优良栽培草比例由30%提高80%到,年产草量由15000kg/ha提高到45000kg/ha以上,裁畜量由每公顷3.85个竿单位提高到6.88个羊单位。
It was demonstrated that resowing method was a quick and effectiveway to improve the degenerated sown pasture. After the treament, the pasture co-verage increased from 51.8% to 98%, the proportion of high quality cultivated grassincreased from 30% to 80%, the annual yield of grass increased from 15 000 kg/ha to more than 45 000 kg/ha, and the carrying capacity increased from 3.85 to6.88 sheep units per hectare.
关键词
人工牧场
退化
草地
补播
改良
artificial pastures
deteriorated grassland
grassland improvements/resowing
