刚察县哈尔盖乡甘肃棘豆调查与灭治  

Investigation and Elimination of Oxytropis kansuensis in Haergai Region Gangcha County

作　　者：阿翰林 党生贵 张生武 张守相 

机构地区：[1]青海省海北州畜牧兽医科学研究所

出　　处：《青海畜牧兽医杂志》1994年第1期5-7,共3页Chinese Qinghai Journal of Animal and Veterinary Sciences

摘　　要：哈尔盖乡冬春草场上，甘肃棘豆平均密度为８０．８株丛／ｍ￣２，平均盖度为６１．３％，空间分布为集群型（Ｓ￣２＞ｍ），其株丛平均直径与根直径呈显著的正相关（Ｐ＜０．０５），根直径、营养枝数量、生殖枝数量和株丛平均直径与根长之间呈极显著的正相关（Ｐ＜０．０１）。利用草甘膦灭除１６７５ｈｍ￣２，平均灭效达９５．３％，取得了显著的生态和经济效益。On winter-spring grazing grassland of Haergai region,Oxytropiskansuensis,which was contagiously distributed(S￣2>m),had a average densityof 80.8 rosette/m￣2 and coverage of 61.3%,The root diameter was positivelycorrelated with the average diameter of rosette(P<0.05).The root length waspositively correlated with both the diameters of root and rosette and the numbersof vegetative and rsproductive shoots(P<0.01).Glyphosate was used to elim-inate the poisionous weed in a area of 1 675 hm￣2,The results showed that the95.3%of O.kansuensis was killed,and the ecological and economic effects weresignificantly achieved.

关 键 词：棘豆 草甘膦 防治 毒草 

分 类 号：S452[农业科学—植物保护]