| 稻田土壤杂草种子库研究 |
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| 引用本文： | 吴竞仑,周恒昌.稻田土壤杂草种子库研究[J].中国水稻科学,2000,14(1):37-42. |
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| 作者姓名： | 吴竞仑 周恒昌 |
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| 作者单位： | 1.江苏省农业科学院杂草研究中心, 江苏南京210014;2.江苏省仪征市农资公司, 江苏仪征211400 |
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| 基金项目： | 国家“九五”科技攻关子专题项目,江苏省“九五”农业重大科技攻关专题项目 |
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| 摘 要： | 对江苏省仪征市连年稻麦两熟轮作稻田土壤杂草种子库中杂草种类进行了考查。结果表明, 有11 科22 种杂草的种子主要分布在0～10 cm 土层内。同时, 阐述了土壤种子库杂草种子的来源, 因水分、湿度、光照等自然因素和耕作、人工除草等人为因素, 杂草种子本身的完熟度等综合因素造成了土壤杂草种子库中杂草种子活力的损失与累积, 以及杂草种子萌发与土层深度、水分等的关系, 初步探明了水旱轮作对稻田土壤杂草种子库的影响, 提出了减少杂草种子库种源的对策。
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| 关 键 词： | 水稻土 杂草 种子库 轮作方式 |
| 文章编号： | 1001-7216(2000)01-0037-06 |
| 收稿时间： | 1900-01-01; |
Seed Bank of Weeds in Paddy Fields |
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| WU Jing-lun,ZHOU Heng-chang.Seed Bank of Weeds in Paddy Fields[J].Chinese Journal of Rice Science,2000,14(1):37-42. |
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| Authors: | WU Jing-lun ZHOU Heng-chang |
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| Abstract: | Seed bank of weeds in rice-wheat
rotation fields in Yizheng, Jiangsu Province was investigated. The result showed that
there were 22 species of weeds, belonging to 11 families, which mainly distributed in 0-10
cm depth soil in the fields. The origin, loss and accumulation of weed seeds were
discussed. Effects of soil depth, water content and lowland and upland crop rotation on
the seed bank of weeds in the paddy fields were also observed. Strategies to decrease the
seed occurrence of weed were given. |
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| Keywords: | paddy soils seed bank weed crop rotations |
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