| 免耕套种与秸秆还田对农田生态环境及小麦生长的影响 |
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| 引用本文： | 刘世平,张洪程,戴其根,霍中洋,许轲,阮慧芳. 免耕套种与秸秆还田对农田生态环境及小麦生长的影响[J]. 应用生态学报, 2005, 16(2): 393-396 |
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| 作者姓名： | 刘世平 张洪程 戴其根 霍中洋 许轲 阮慧芳 |
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| 作者单位： | 扬州大学农学院, 扬州, 225009 |
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| 基金项目： | 国家农业科技成果转化基金资助项目(02EFN3200230). |
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| 摘 要： | 1 引 言免耕作为低耗持续农业生产和保护性耕作的一项重要手段,越来越受到国内外学者的重视.在国外,免耕最早是20世纪30年代为防治土壤风蚀而采取的措施,60年代得到迅速发展,且随着研究的不断深入,免耕的作用逐渐扩大[10,18].我国自70年代后期开始免耕的系统研究,在免耕和秸秆覆盖对土壤理化性质、微生物区系及生态环境的影响等方面都有不少报道[2,11,16,17,23].秸秆还田在提高土壤肥力,增加作物产量等方面已被许多研究所证实[3,5～8,12,13,19～21].随着社会和生产的发展,秸秆还田的方式,方法和数量都在不断变化,尤其是部分地区禁烧秸秆…
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| 关 键 词： | 稻麦免耕套种 秸秆还田 农田生态环境 小麦 生长 保护性耕作 |
| 文章编号： | 1001-9332(2005)02-0393-04 |
| 收稿时间： | 2003-11-12 |
| 修稿时间： | 2003-11-12 |
Effects of no-tillage plus inter-planting and remaining straw on the field on cropland eco-environment and wheat growth |
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| LIU Shiping,ZHANG Hongcheng,DAI Qigen,HUO Zhongyang,XU Ke,RUAN Huifang. Effects of no-tillage plus inter-planting and remaining straw on the field on cropland eco-environment and wheat growth[J]. The journal of applied ecology, 2005, 16(2): 393-396 |
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| Authors: | LIU Shiping ZHANG Hongcheng DAI Qigen HUO Zhongyang XU Ke RUAN Huifang |
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| Affiliation: | College of Agriculture, Yangzhou University, Yangzhou 225009, China |
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| Abstract: | The studies showed that under no-tillage plus inter-planting rice and wheat, the height of rice stubble remained on the field significantly affected light transmission rate, with an optimal height of 20-30 cm. No-tillage and straw-remaining decreased soil temperature at noon in sunny days, but slightly increased it in the morning and evening, led to a less diurnal difference of soil temperature. The average diurnal soil temperature under no-tillage was higher in cloudy but lower in sunny days. Under no-tillage and straw-remaining, both the bulk density and the penetration resistance of topsoil increased, but no apparent adverse effect of them was observed on wheat growth. Under no-tillage, soil water content was higher under drought condition, and soil permeability after irrigation was better, which was propitious to the wheat growth. Straw-remaining significantly inhibited weeds, but led to the decrease of basic seedlings and enhanced the damage of freezing. Under no-tillage plus inter-planting, the individuals of effective ears decreased, while the kilo-grain weight increased. The grain yield was slightly but not significantly low under no-tillage plus inter-planting. |
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| Keywords: | No-tillage plus inter-planting Straw-remaining on field Wheat Cropland eco-environment. |
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