摘要
对枫杨、夹竹桃和土大黄以及它们的组合水浸液的灭螺效果作了比较研究 ,结果表明 :( 1 )灭螺效果均随水浸液浓度的增高而增强 ;( 2 )这 3种植物材料及其组合水浸液的灭螺效果都是春季比秋季好 ;( 3 )组合水浸液的灭螺效果比单一植物材料水浸液的灭螺效果好 ;( 4)方差分析的结果说明植物材料组合水浸液灭螺在保证灭螺效果的前提下 ,还可以适当降低组合水浸液中的浓度 .以上结论对提高植物材料的灭螺效率和节省植物材料的使用量有着重要的意义 。
The killing effect on Oncomelania hupensis by lixivium of Pterocarya stenoptera,Nerium indicum,Rumex japonicus and their mixture was studied .Differences of the snails′mortality were studied also.The three kinds of plant material could kill the snail effectively both in spring and in autumn.But the mortality was different when the experiment is done in different seasons or with different lixivium.The effect in spring was better than that in autumn.N.indicum was the most effective among the three kinds.The effect by mixture was better than that by unitary material,and the effect by the mixture of the three kinds was better than that by two kinds.The variance analyses showed that the experiment could be modified,and some ingredients′concentration in mixed lixivium could be reduced.The experiment was valuable in enhancing the power of killing the snail and saving plant material.
出处
《湖北大学学报（自然科学版）》
CAS
2000年第1期84-87,共4页
Journal of Hubei University：Natural Science
基金
国家自然科学基金资助项目!( 3 9670 65 4)
关键词
灭螺效果
枫杨
夹竹桃
土大黄
钉螺
灭螺植物
the effect of Killing Oncomelania hupensis
Pterocarya stenoptera
Nerium indicum
Rumex japonicus
