| 蒜田杂草生态经济阈值研究 |
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| 引用本文： | 张龙平,刘国伟,高发瑞,高园园,刘艳芝,马井玉. 蒜田杂草生态经济阈值研究[J]. 中国植保导刊, 2012, 32(5): 9-11 |
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| 作者姓名： | 张龙平 刘国伟 高发瑞 高园园 刘艳芝 马井玉 |
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| 作者单位： | 济宁市农业科学研究院,山东济宁,272031 |
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| 摘 要： | 研究了不同杂草密度对蒜薹和蒜头产量的影响,建立了产量损失与杂草密度关系方程:y=0.000 05x2+0.008 3x+0.16。根据防治经济学原理,研究得出杂草经济危害损失允许水平为0.62%,从而确定蒜田杂草生态经济阈值为43.84株/m2,在此阈值以下,可不施药。
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| 关 键 词： | 蒜田杂草 经济危害损失水平 产量损失 杂草密度 |
Study on the eco-economic thresholds of weeds in garlic field |
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| Zhang Longping , Liu Guowei , Gao Farui , Gao Yuanyuan , Liu Yanzhi , Ma Jingyu. Study on the eco-economic thresholds of weeds in garlic field[J]. China Plant Protection, 2012, 32(5): 9-11 |
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| Authors: | Zhang Longping Liu Guowei Gao Farui Gao Yuanyuan Liu Yanzhi Ma Jingyu |
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| Affiliation: | (Jining Academy of Agricultural Sciences,Jining Shandong 272031,China) |
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| Abstract: | Effects of different weed densities on yield of garlic bolts and garlic bulbs were studied and the equation of relation between weed density and yield loss was established as y=0.000 05x2+0.008 3x+0.16.According to prevention economic principles,the economic damage level of weeds in garlic field was 0.62% and its eco-economic threshold was 43.84 plants per square meter which indicated that it was unnecessary for pesticide application below this level. |
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| Keywords: | weeds in garlic field economic damage level yield loss weed density |
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