| 渭北旱地冬小麦不同覆盖模式增温效应研究 |
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| 引用本文： | 党占平,刘文国,周济铭,强秦,曹卫贤,高亚军,李生秀.渭北旱地冬小麦不同覆盖模式增温效应研究[J].西北农业学报,2007,16(2):24-27. |
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| 作者姓名： | 党占平 刘文国 周济铭 强秦 曹卫贤 高亚军 李生秀 |
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| 作者单位： | 1. 杨凌职业技术学院,陕西杨凌,712100
2. 西北农林科技大学资源与环境学院,陕西杨凌,712100 |
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| 摘 要： | 对不同覆盖模式旱地冬小麦土壤温度的分析表明,覆盖栽培对提高土壤温度具有明显的作用,平覆地膜穴播栽培和垄沟栽培能够有效地提高旱地冬小麦全生育期积温和越冬期前的土壤温度,表层土壤增温幅度最大,随着土壤深度增加增温幅度逐渐减少,中午(14:00时)增温幅度大于早(8:00时)、晚(18:00时),从而有利于形成壮苗和冬前有效分蘖。秸秆覆盖栽培在苗期和分蘖期虽有一定的增温效果,但越冬期后土壤温度明显降低,抑制了春季有效分蘖的形成和拔节孕穗期的生长发育。
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| 关 键 词： | 冬小麦 覆盖模式 土壤温度 旱地 |
| 文章编号： | 1004-1389（2007）02-0024-04 |
| 收稿时间： | 2006-11-17 |
| 修稿时间： | 2006-12-06 |
Effects of Different Mulching Models on Increasing Soil Temperature in Winter Wheat of Weibei Dryland |
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| DANG Zhan-ping,LIU Wen-guo,ZHOU Ji-ming,QIANG Qin,CAO Wei-xian,GAO Ya-jun and LI Sheng-xiu.Effects of Different Mulching Models on Increasing Soil Temperature in Winter Wheat of Weibei Dryland[J].Acta Agriculturae Boreali-occidentalis Sinica,2007,16(2):24-27. |
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| Authors: | DANG Zhan-ping LIU Wen-guo ZHOU Ji-ming QIANG Qin CAO Wei-xian GAO Ya-jun and LI Sheng-xiu |
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| Institution: | Yangling Vocational and Technical College, Yangling Shaanxi 712100, China;Yangling Vocational and Technical College, Yangling Shaanxi 712100, China;Yangling Vocational and Technical College, Yangling Shaanxi 712100, China;Yangling Vocational and Technical College, Yangling Shaanxi 712100, China;Yangling Vocational and Technical College, Yangling Shaanxi 712100, China;College of Resource and Environment, Northwest A & F University, Yangling Shaanxi 712100, China;College of Resource and Environment, Northwest A & F University, Yangling Shaanxi 712100, China |
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| Abstract: | Soil temperature under different mulching modules of winter wheat in dryland was analyzed.The results showed that mulching cultivation had significant effect on increasing soil temperature,film mulching and hole sowing and furrow-film mulching cultivation remarkably increase soil accumulated temperatures in whole growth period and average soil temperatures before overwintering stage,meanwhile ranges of soil temperature increasing was greatest at surface soil,then with the increasing of soil depth,the ranges reduces.The ranges of soil temperature increasing at 2:00PM were greater than at 8:00 AM and 18:00 PM.and that was advantage to formatting strong seedling and effective tiller.Straw mulching cultivation has effect of increasing soil temperature in seedling stage and tillering stage,but obviously reduces soil temperature after overwintering stage,and that restrain to form spring tiller and growth in jointing-booting stage. |
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| Keywords: | Winter wheat Mulching modules Soil temperature Dry land |
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