干旱区生态环境知识资源中心(Arid): 西北内陆旱区洋葱耗水规律试验研究

Arid

	西北内陆旱区洋葱耗水规律试验研究
其他题名	Crop Water Use of Onion (Allium cepa L.) in the Osias Arid Region of Northwest China
	郑建华; 王军; 黄冠华; 王凤新
来源期刊	灌溉排水学报
ISSN	1672-3317
出版年	2010
卷号	29 期号:5 页码:90-93
中文摘要	以白皮洋葱为试材,利用称量式蒸渗仪灌水试验,研究了不同灌水量及土壤含盐量对洋葱的耗水规律,产量和水分利用效率的影响.供试土壤分别为低盐土和高盐土,低盐土在鳞茎膨大期设置3种灌水处理,其对应的灌水下限分别为030 cm土层土壤含水率达到田持的80%,70%和60%,其他生长期和高盐土的全生育期灌水下限均为田持的80%.研究结果表明,鳞茎膨大期是洋葱的关键需水期;洋葱作物系数立苗期为0.50,发叶期为1.00,鳞茎膨大期为1.50,成熟期为1.25.低盐土的中水处理洋葱可获得最大产量,水分利用效率和较大的灌溉水利用效率;水分和盐分胁迫对洋葱的产量和耗水具有明显的影响.在石羊河流域洋葱鳞茎膨大期,030 cm土层土壤灌水下限为田持的70%左右是较适宜的灌水方案
英文摘要	An experiment was conducted in the weighting lysimeters to investigate crop water consumption, yield and water use efficiency of onion(Allium cepa L.) under three irrigation levels and two soil salinity levels in the Osias arid region, northwest China. For the low salinity soil, irrigation was applied with 80%,70% and 60% of field capacity(FC) in the layer of 0 to 30 cm as its lower limit of irrigation, which are corresponding to high, moderate and low water treatment during the bulbification stage, while in other stages for low salinity soil and stages for high salinity soil, the onion was irrigated with high irrigation water. Results indicated that bulbification stage is the most critical period for onion water consumption, crop coefficient of onion is 0.50,1.00,1.50, and 1.25 respectively for the establishment, development, bulbification, and ripening stages. Maximum yield,WUE and higher IWUE can be obtained with the moderate water treatment. Onion yield and water consumption are significantly affected by water and salinity stress. In a conclusion, the proper irrigation schedule for onion growing in low salinity soil is the treatment with 70% FC in 030 cm layer as its lower limit of irrigation during the bulbification stage, while no water stress in the other stages,in the Oasis arid region Northwest China
中文关键词	洋葱 ; 耗水规律 ; 水分利用效率
英文关键词	onion crop water consumption water use efficiency
语种	中文
国家	中国
收录类别	CSCD
WOS类目	AGRICULTURAL ENGINEERING ; HORTICULTURE
WOS研究方向	Agriculture
CSCD记录号	CSCD:4062258
来源机构	中国农业大学
资源类型	期刊论文
条目标识符	http://119.78.100.177/qdio/handle/2XILL650/225247
作者单位	中国农业大学水利与土木工程学院, 北京 100083, 中国
推荐引用方式 GB/T 7714	郑建华,王军,黄冠华,等. 西北内陆旱区洋葱耗水规律试验研究[J]. 中国农业大学,2010,29(5):90-93.
APA	郑建华,王军,黄冠华,&王凤新.(2010).西北内陆旱区洋葱耗水规律试验研究.灌溉排水学报,29(5),90-93.
MLA	郑建华,et al."西北内陆旱区洋葱耗水规律试验研究".灌溉排水学报 29.5(2010):90-93.