| 施氮量对棉田主要害虫种群动态的影响 |
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| 引用本文： | 崔金杰,夏敬源,王春义,马丽华,雒君瑜.施氮量对棉田主要害虫种群动态的影响[J].中国植保导刊,2003,23(1):3-5. |
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| 作者姓名： | 崔金杰 夏敬源 王春义 马丽华 雒君瑜 |
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| 作者单位： | 1. 中国农业科学院棉花研究所,河南,安阳,455112
2. 全国农业技术推广服务中心,100026 |
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| 摘 要： | 通过不同施氮肥量对棉田主要害虫种群动态影响的研究结果表明,在低、中、高3种施氮肥水平处理条件下,随着氮肥量的增加,棉田棉铃虫落卵量增加,棉苗蚜、棉叶螨种群数量减少,发生为害减轻,但棉伏蚜种群数量增加。中等施氮肥条件下,第二、三代棉铃虫幼虫数量高于低和高施氮肥处理,对棉铃虫幼虫的生长发育和存活较为有利。
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| 关 键 词： | 氮肥 棉花害虫 种群动态 |
| 文章编号： | 1004-7255(2003)01-0003-03 |
| 修稿时间： | 2002年10月21 |
Effect of the application of N fertilizer on population dynamics of major pests in cotton field |
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| CUI Jin-jie,XIA Jing-yuan,WANG Chun-yi,MA Li-hua,LUO Jun-yu.Effect of the application of N fertilizer on population dynamics of major pests in cotton field[J].China Plant Protection,2003,23(1):3-5. |
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| Authors: | CUI Jin-jie XIA Jing-yuan WANG Chun-yi MA Li-hua LUO Jun-yu |
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| Abstract: | The effect of the application of N fertilizer on population dynamics of ma jor pests in cotton field was stud-ied in this paper.In the condition of different rates of N fertilizer appl ication(low,medium and high),the amount of eggs of Helicoverpa armigera and the populations of Aphis gossypii in midsummer increased gradually wi th the in-crease of N fertilizer applications,but the amount of Aphis gossypii in seedling stage and Tetranychus telarius de-creased gradually,so their damage was also reduced.The amount of larvae of the second and third generations o f Helicoverpa armigera in the condition of medium rate of N fe rtilizer application was more than t hose of the other two treatments.It indicated that the me dium rate of N fertilizer applicatio n was beneficial to the growth and dev elop-ment of larvae of Helicoverpa armigera. |
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| Keywords: | N fertilizer cotton pests population dynamics |
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