宁夏荒漠草原改良技术研究  

Study on the Improve Techniques in Ningxia Desert Steppe

作　　者：高婷[1] 张晓刚 朱建宁[3] 王川[1] 王锦[1] 杨炜迪[1] 

机构地区：[1]宁夏农林科学院草畜工程技术研究中心,宁夏银川750002 [2]宁夏益科农业科技有限公司,宁夏银川750002 [3]宁夏农林科学院农业资源与环境研究所,宁夏银川750002

出　　处：《安徽农业科学》2012年第30期14737-14740,共4页Journal of Anhui Agricultural Sciences

基　　金：国家科技部国际科技合作项目(2010DFA31940)

摘　　要：对引进的21种禾本科牧草的发芽率、越冬率、抗逆性、适口性、品质及产草量进行测定,结果表明:859、731、710、552、616等品种可作为干旱区退化草场恢复重建优良品种。利用筛出的牧草新品种和深耕、移栽和补播草场修复重建技术对天然草场进行改良,可使天然草场的产草量提高20%～55%,植被覆盖度增加8%～20%,草畜综合经济效益提高14.29%～54.74%。改良后土壤pH值和含盐量略有下降,土壤微生物总量增加。各草场修复重建技术提高土壤肥力能力的大小顺序为:深耕>移栽>补播>未改良。This study investigated the germination ratio,winter survival ratio,stress resistance,palatability,quality,and yield of 21 varieties of gramineae grasses.The results showed that varieties such as 859,731,710,552,and 616 could be used as fine varieties for range restoration in Ningxia desert steppe.And then,those selected varieties were used for natural range improvement combined with deep plowing,transplant and reseeding recovery technologies.The yield of natural range,plant cover percentage and integrated economic benefit increased 20% and 14.29% to 54.74%,respectively.The pH and salinity of soil decreased slightly and the total mass of micro organism increased.The order of fertility improvement by those technologies were： deep plowingtransplantreseedingcontrol treatment.

关 键 词：宁夏 荒漠草原 改良技术 

分 类 号：S812.5[农业科学—草业科学]