干旱区生态环境知识资源中心(Arid): 旱地谷子集水保水技术的生理生态效应

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	旱地谷子集水保水技术的生理生态效应
其他题名	Physiological and Ecological Effects of Water Collecting and Conservation Technique on Dry-land Millet
	张德奇 1; 廖允成 1; 贾志宽 1; 季书勤 2; 马庆华 1
ISSN	0496-3490
出版年	2006
卷号	32 期号:5 页码:738-742
中文摘要	将地膜覆盖与保水剂两种集水保水技术集成应用，观测了抽穗期不同处理谷子光合作用日变化，分析了不同集水保水技术对产量和水分状况的影响。结果表明，各处理光合速率日变化存在午休现象，两种覆膜方式结合使用保水剂的处理使这种趋势有所减轻；蒸腾速率日变化为单峰曲线，气孔导度以上午8：00最高。地膜覆盖与保水剂处理表现出一定的增产和提高水分利用效率的效果，平膜方式与垄沟方式分别较露地栽培增产78．98％和60．12％，保水剂使用较不使用平均增产7．66％，季末垄膜沟植有较好的水分效应，收获后2m土层贮水量平均较对照增加59．9mm。
英文摘要	Film mulching technique （FM） and super water absorbent polymers（SW） were used in millet production. In this study, six water collecting and conservation treatments were carried out in millet production in southern Ningxia semi-arid areas, including solely furrow seeding with film and ridge technique, furrow seeding with film and ridge colligated SW, hole seeding on film mulching, hole seeding on film mulching with SW together, merely SW, and no film mulching and no SW as CK. During the experiment, the daily changes of photosynthetic rate during millet heading stage were measured, and the changes of moisture and millet yield were investigated. This study points out that the ＂midday depression＂ was appeared in daily changes of photosynthetic rate under different treatments, but the integrative technique of FM and SW could abate it （Fig. 1）. Daily changes of transpiration rate were a single-peak curve （Fig.2）, and the time of greatest stomatal conductance was at 8：00 am （Fig.3）. Yield and water use efficiency （WUE） were increased by using FM and SW. The treatments of hole seeding on film and furrow seeding with film and ridge could increased the yield, which were 78.98 % and 60.12% higher than that of non-mulched, respectively. The millet yield of SW seeding was enhanced 7.66% compared with no SW seeding. Furrow seeding with film and ridge after harvest was propitious to soil moisture, using the technique could increase water storage by 59.9 mm compared with CK in 2 m depth （Table 2）.
中文关键词	地膜覆盖 ; 保水剂 ; 生理生态效应 ; 光合作用
英文关键词	Mulching film Super water absorbent polymers Physiological and ecological effects Photosynthesis
语种	中文
国家	中国
收录类别	CSCD
WOS类目	AGRONOMY
WOS研究方向	Agriculture
CSCD记录号	CSCD:2463878
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/2XILL650/220611
作者单位	1.西北农林科技大学农学院, 杨凌, 陕西 712100, 中国; 2.河南省农业科学院小麦研究所, 郑州, 河南 450002, 中国
推荐引用方式 GB/T 7714	张德奇,廖允成,贾志宽,等. 旱地谷子集水保水技术的生理生态效应[J]. 西北农林科技大学,2006,32(5):738-742.
APA	张德奇,廖允成,贾志宽,季书勤,&马庆华.(2006).旱地谷子集水保水技术的生理生态效应.,32(5),738-742.
MLA	张德奇,et al."旱地谷子集水保水技术的生理生态效应".32.5(2006):738-742.