干旱区生态环境知识资源中心(Arid): 免耕条件下秸秆覆盖保墒灌溉的土壤水、热及作物效应研究

Arid

	免耕条件下秸秆覆盖保墒灌溉的土壤水、热及作物效应研究
其他题名	Soil moisture conserving irrigation under straw mulch with no-tillage
	员学锋; 吴普特; 汪有科; 徐福利
来源期刊	农业工程学报
ISSN	1002-6819
出版年	2006
卷号	22 期号:7 页码:22-26
中文摘要	该文从目前中国干旱半干旱地区发展起来的较为成熟的保墒技术得到启迪，提出了保墒灌溉这一新理念。重点通过小区试验研究了免耕条件下秸秆覆盖保墒灌溉的农田效应。结果表明，覆盖处理0～50cm土壤含水率明显高于对照，地表温度日变化趋势缓和，日最高最低温度差为12．43℃，而对照则高达50．03℃。覆盖处理耕层土壤细菌、放线菌、真菌分别是对照的1．63倍、1．68倍和1．07倍，玉米株高、茎粗和叶面积均明显大于对照，相对于覆盖处理和对照本身而言，各指标均有随灌水量的增加呈上升的趋势。覆盖处理后，玉米的光合作用速率、蒸腾速率等均大于对照，但是单叶水分利用效率却相差不大。玉米产量随灌溉水量的增加较对照平均增加22．16％、20．28％和12．75％，且基本随灌溉量的增加呈上升趋势。
英文摘要	Inspired from the comparatively mature technology of soil moisture conservation, developing in the semi-arid and arid region in China, the authors proposed the new concept of ＂Soil Moisture Conserving Irrigation （SMCI）＂, which may play a role, just like casting a brick to attract jade, in widening relevant research on water- saving irrigation and the development of water-saving undertaking of China. At the same time, through the plot experiment, the effect of the straw mulch on the field environment was studied. Result indicates soil water content with straw covered is obviously higher than contrast in 0-50 cm depth of soil Variation of temperature in one day inclined to moderation after straw mulching, the lowest range of temperature per day is 12.43℃, compared to 50. 03℃. Topsoil soil bacterium, actinomyces, and fungi after straw mulching are 1.63 times, 1, 68 times and 1.07 times as much as those of the contrast. The indexes of height, diameter and leaf area are obviously greater than those of the contrast, in the same treatment, the photosynthesis rate, transpiration rate of maize are all greater than those of the contrast, but the water use efficiency of single leaf is nearly the same between treatment and contrast. The yield of the treatment increased at the percent of 22. 16%, 20. 28% and 12.75%, and increased with the rise of quantity of irrigation water.
中文关键词	免耕 ; 秸秆覆盖 ; 保墒灌溉 ; 效应
英文关键词	no-tillage straw mulch Soil Moisture Conserving Irrigation（SMCI） effect
类型	Article
语种	中文
国家	中国
收录类别	CSCD
WOS类目	Agriculture
WOS研究方向	Agriculture
CSCD记录号	CSCD:2483180
来源机构	西北农林科技大学
资源类型	期刊论文
条目标识符	http://119.78.100.177/qdio/handle/2XILL650/219968
作者单位	员学锋, 西北农林科技大学水利与建筑工程学院, 杨凌, 712100.; 吴普特, 西北农林科技大学水利与建筑工程学院, 杨凌, 712100.; 汪有科, 西北农林科技大学水利与建筑工程学院, 杨凌, 712100.; 徐福利, 西北农林科技大学水利与建筑工程学院, 杨凌, 712100.
推荐引用方式 GB/T 7714	员学锋,吴普特,汪有科,等. 免耕条件下秸秆覆盖保墒灌溉的土壤水、热及作物效应研究[J]. 西北农林科技大学,2006,22(7):22-26.
APA	员学锋,吴普特,汪有科,&徐福利.(2006).免耕条件下秸秆覆盖保墒灌溉的土壤水、热及作物效应研究.农业工程学报,22(7),22-26.
MLA	员学锋,et al."免耕条件下秸秆覆盖保墒灌溉的土壤水、热及作物效应研究".农业工程学报 22.7(2006):22-26.