| 张朝贤;胡祥恩;钱益新.杂草密度与作物产量损失的预测模型[J].植物保护,1997,23(2):6-10. |
| 杂草密度与作物产量损失的预测模型 |
| A Practicable Model for Predicting Crop Yield Loss duo to Weed Competition |
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| DOI： |
| 中文关键词: 杂草密度,竞争,产量损失,预测模型 |
| 英文关键词:weed density, competition, crop yield loss, model |
| 基金项目: |
| 张朝贤;胡祥恩;钱益新 |
| 中国农业科学院植物保护研究所 北京 100094 |
| 摘要点击次数: 904 |
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| 中文摘要: |
| 通过对国内外多个用于杂草密度和作物产量损失关系的经验模型比较分析，并对１０组不同来源的杂草与作物竞争资料进行模拟，证明模型ＹＬ＝ｄ／（ａ＋ｂｄ）具有实际的生物学意义，能确地描述多种杂草和多种作物间的竞争关系，预测杂草竞争对作物可能造成的危害和损失。 |
| 英文摘要: |
| A simple and feasible model for predicting crop yield loss duo to weed competition is described after having compared to several models frequently used in China and overseas and fitted to 10 sets of data from literature It is demonstrated that the model is biologically meaningful and is capable of describing the relationship between crop yield loss and weed density in a wide range of weeds and crops, and predicting the yield loss |
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