| 施氮量对棉花和棉蚜的影响 |
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| 引用本文： | 刘顺 王益之. 施氮量对棉花和棉蚜的影响[J]. 河北农业大学学报, 1990, 13(3): 55-58 |
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| 作者姓名： | 刘顺 王益之 |
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| 作者单位： | 河北农业大学植保系(刘顺)，河北农业大学植保系(王益之) |
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| 摘 要： | 在田间和盆栽情况下,进行了施氮量对棉花和棉蚜(Aphis gossypii Glover)影响的研究。随着施氮量的增加,棉叶中可溶氮和蛋白质含量增加;棉花的产量相应提高;初生蚜到成蚜开始胎生的历期缩短,成蚜的个体增大,寿命延长,繁殖力增加;棉蚜的种群数量增加。通过对氮肥费用,化防费用及棉花产量3因素的综合分析,初步得出每亩施氮10kg,种植棉花的经济效益最佳。
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| 关 键 词： | 施氮量 棉花 棉蚜 |
The Effect of Applications of Nitrogen Fetilizer on Cotton and Cotton Aphid |
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| Liu Shun Wang Yizhi. The Effect of Applications of Nitrogen Fetilizer on Cotton and Cotton Aphid[J]. Journal of Agricultural University of Hebei, 1990, 13(3): 55-58 |
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| Authors: | Liu Shun Wang Yizhi |
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| Abstract: | The experiment in the effect of applications of nitrogen fertilizer on cotton and cotton aphid (Apphis gossybii Glover) was carried out in fields and pots in 1986. By increaseing the applications of nitrogen fertilizer in cotton fields,the content of nitrogenous of nutrition of cotton leaves and the cotton yield were enhanced. Considering economic binefit, when the amount of nitrogen is 10 kg per mu, cativating cotton is the best. |
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| Keywords: | Cotton Cotton aphid Fertilizer |
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