退化人工羊草草地复壮效果的比较研究  

Improvement of Artificial Guinea Grassland by Soil Treatments.

作　　者：王明玖[1] 卫志军[1] 许志信[1] 冯国栋[1] 昭和斯图[1] 

机构地区：[1]内蒙古农牧学院草原系

出　　处：《中国草地》1996年第5期1-5,共5页Grassland of China

摘　　要：通过对退化人工羊草草地浅翻、深松、重耙和休闲四种复壮方法的效果进行的比较分析表明，随着处理强度加重，复壮效果逐渐增加。休闲和重耙不能起到明显的复壮作用，深松和浅翻可以破坏部分羊草根茎，促进其更新，特别是浅翻可以改变土壤的物理性状，使羊草的产量和质量均有大幅度提高。深松以春、秋季节进行为好；浅翻以春季进行最佳。春翻后播种一年生谷草是一种有效利用草地的方法，可以增加改良草地的收益。he effect of soil treatments with shallow ploughing, deep lossening, heavy harrowing and close of grazing were comparied in the artificial guinea grassland. The results show that close of grazing and heavy harrowing can ,t cause obvious improvement on the guinea grassland. Deep lossening and shallow ploughing can cut off the rhizome of Leymus chinensis and promote the renovation of Leymus chinensis ; especially, shallow ploughing can improve the physical charateristics of soil, enhance the yield and guality of Leymus chinensis greatly. The proper time of deep lossening is in spring and autumn, the optional time of shallow ploughing is in spring. After shallow ploghing in spring, sowing anual grain is an effective means, which can increase the economic benefit of the improved grassland and has no bad influence on the growth of Leymus chinensis .

关 键 词：土壤处理 复壮 羊草 草地 

分 类 号：S812.8[农业科学—草业科学]