| 不同蛙类及其密度对水稻性状和主要害虫的影响 |
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| 引用本文： | 谢洪科,;邹朝晖,;刘功朋,;杨锋,;彭伟正.不同蛙类及其密度对水稻性状和主要害虫的影响[J].江西农业学报,2014(6):21-25. |
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| 作者姓名： | 谢洪科 ;邹朝晖 ;刘功朋 ;杨锋 ;彭伟正 |
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| 作者单位： | [1]湖南省核农学与航天育种研究所,湖南长沙410125; [2]海南神农大丰种业科技股份有限公司,海南海口572000; [3]国家杂交水稻工程技术研究中心,湖南长沙410125 |
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| 基金项目： | 湖南省农科院创新基金项目 |
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| 摘 要： | 研究了在稻田放养不同密度的3种蛙类(青蛙、牛蛙和泽蛙)对早稻、晚稻主要性状和主要害虫发生的影响。结果表明:放养蛙类对水稻农艺性状及有效穗数、千粒重无显著的影响,但对每穗粒数、结实率和稻谷产量有显著的影响;与空白对照相比,放养较高密度的青蛙或牛蛙可以显著提高水稻的每穗粒数、结实率和稻谷产量;放养3种蛙类对稻飞虱和稻纵卷叶螟均有一定的防治效果,以放养青蛙或牛蛙的防效较好,且放养密度越高防效越好,但均不及施用普通药剂的防效。
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| 关 键 词： | 蛙类 放养密度 水稻 性状 害虫 生物防治 |
Effects of Various Batrachia and Their Densities on Rice Traits and Main Insect Pests in Paddy |
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| Institution: | XIE Hong-ke, ZOU Zhao-hui, LIU Gong-peng, YANG Feng, PENG Wei-zheng ( 1. Hunan Provincial Nuclear Agronomy and Space Mutation Breeding Research Institute, Changsha 410125, China; 2. Hainan Provincial Shennongdafeng Seed Company Limited, Haikou 572000, China ; 3. China National Hybrid Rice Research and Development Center, Changsha 410125, China) |
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| Abstract: | The effects of three various batrachia （ Rana nigromaculata, Rana catesbeiana and Rana limnocharis） and their densities on the main traits of early rice and late rice as well as the occurrence of main insect pests in paddy were studied .The results showed that rearing batrachia in paddy had no significant effects on the agronomic traits , number of effective spikes per unit area , and 1000-grain weight of rice , but had significant influences on the number of grains per spike , seed setting rate , and grain yield;in comparison with the blank control , rearing higher density of frog or bullfrog could significantly enhance the number of grains per spike , seed setting rate , and grain yield of rice;the three batrachia all had a certain control effect on rice planthopper and rice leaf roller, but frog and bullfrog had better control effect , and the higher their density was , the better their control effect was , but the control effect of batrachia was lower than that of applying common insecticides . |
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| Keywords: | Batrachia Rearing density Rice Trait Insect pest Biological control |
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