摘要
在退化羊草草地上进行松土和施肥试验表明,松土可改善土壤的物理性状,促进牧草的生长发育,产草量可提高35.3％,增产效果可达5年以上。松土同时并施肥,增产效果更明显,亩施7kgN和3kgP_2O_5的草场,产草量比松土草场增加78.9％,并可提高羊草的蛋白质含量。
The results of soil loosing and fertilizing experiments in the degraded Chinese Wildrye rangelands show that soil loosing can improve the physical characters of the range soil and promote the growth of grasses and herbs. The yield of hay can ba raised by 35. 3%. The effects can last about 5years. Soil loosing with fertilizing can raised the yields of the ranger more and more obviously. The hay yieil of the range fertilized could increase about 78.9% more than that of the soil loosec only,At the same fime,it also could raise the content of protein in the hay.
出处
《中国草地》
CSCD
1992年第2期28-32,共5页
Grassland of China
关键词
羊草
草地
改良
氮磷肥
Soil loosing
Chinese wildrye
fertilize
