稻田放牧鸭群控制蚊幼孳生的实验研究

Experimental Studies on Multiplication Control of Mosquito and its Larva by Putting Ducks out to Rice Field

作者先后于1979、1983年,在豫北黄河冲积平原武陟县及豫南山地桐柏县稻区,利用群众在水稻田放鸭的习惯,因势利导,观察了对控制蚊幼孳生的效果。实验表明,蚊幼控制率分别为96.8～98.5%、87.9%,相关密度指数(RP1)为3.3(P<0.001),稻谷增产10.2%,提供商品肉鸭100kg/亩以上,可谓一举三得。

In both 1979 and 1983, the experimental studies were made to control propagating of mosquito and its larva by running ducks in the rice field in both North Henan Alluvial Plain by Yellow River and South Henan Mountainous Area, where the residents have the habit of farming ducks in the rice field. Such results were achieved: a). The larva control rate ranged from 96.8-98.5% in the former area and in the latter 87.9%. Relative index of the density was 3.3, p<0.001 through the significance test in the both areas, b). Output of the rice increased by 10.2% and c). More than 100 kg duck meat was supplied from each mu(1/15 ha)rice field averagely. This is a measure beneficial to agriculture, duck raise and extermination of mosquito and its larva, and worthy to be spread in the rice growing district.