干旱区生态环境知识资源中心(Arid): 调亏灌溉下菘蓝耗水量变化特征

Arid

	调亏灌溉下菘蓝耗水量变化特征
其他题名	Characteristics of Isatis Tinctoria Water Consumption in Regulated Deficit Irrigation
	王玉才; 张恒嘉; 邓浩亮; 李福强; 黄彩霞; 薛道信
来源期刊	水土保持通报
ISSN	1000-288X
出版年	2019
卷号	39 期号:2 页码:167-171
中文摘要	[目的]研究膜下滴灌调亏灌溉对河西地区菘蓝耗水量和产量的影响,为干旱、半干旱区菘蓝的高产种植提供理论依据。[方法]通过大田试验分析耗水量和产量变化。[结果]在营养生长期和肉质根生长期各处理的耗水量呈现出随着水分亏缺程度的加剧逐渐降低,与CK相比显著降低(4.11%~15.71%,p<0.05)。耗水强度变化规律基本呈现出苗期最小(约0.90 mm/d),肉质根成熟期较大(约1.60 mm/d),营养生长期和肉质根生长期最大(约3.00 mm/d)。WD_4(营养生长期和肉质根生长期轻度亏水)处理的菘蓝产量与CK无显著(p>0.05)差异,达到8 235.32 kg/hm~2,WD1(营养生长期轻度亏水)处理的水分利用效率最高〔23.62 kg/(hm~2·mm)〕,WD_4处理次之,且比CK提高6.74%,即WD_4处理为最优处理。[结论]轻度水分亏缺可以有效降低菘蓝各生育期的耗水量,提高菘蓝产量和水分利用效率。而重度水分亏缺则导致土壤水分显著降低,不利于菘蓝生长。
英文摘要	[Objective]The water consumption and yield in the drip regulated deficit irrigation were studied by field experiment in order to provide a theoretical basis for the high yield planting of Isatis tinctoriain arid and semi-arid areas.[Methods]Water consumption and yield changes were analyzed by field trials.[Results] The water consumption in the vegetative growth period was gradually reduced with the increase of water deficit.Compared with the one of CK,water consumptions of regulated deficit irrigation reduced significantly by 4.11%~15.71%(p<0.05).In an overall,the water consumption intensity basically showed its minimum in the seedling stage(about 0.90 mm/d).In the fleshy root maturity stage,it was larger(about 1.60 mm/d);and in the vegetative growth and fleshy root growth period,it got the largest(about 3.00 mm/d).There was no significant difference between the ones of WD_4(mild water deficit during growth and fleshy root growth) treatment and CK(p>0.05).The yield of Isatis tinctoria reached 8 235.32 kg/hm~2.Treatment of WD1(mild water deficit during vegetative growth)had the highest water use efficiency 23.62 kg/(hm~2·mm),the one of WD_4 was 6.74% and its was higher than the one of CK.Comparatively,WD_4 was the best treatment.[Conclusion]Moderate water deficit had no significant yield difference with the one of CK,hence it can effectively reduce the water consumption of each growth period and correspondingly improve the water use efficiency.However,severe water deficit leads to a significant decrease in soil moisture,which is not conducive to the growth of Isatis tinctoria.
中文关键词	调亏灌溉 ; 耗水量 ; 土壤水分 ; 菘蓝
英文关键词	regulated deficit irrigation water consumption soil moisture Isatis tinctoria
语种	中文
国家	中国
收录类别	CSCD
WOS类目	AGRICULTURAL ENGINEERING
WOS研究方向	Agriculture
CSCD记录号	CSCD:6487848
来源机构	甘肃农业大学
资源类型	期刊论文
条目标识符	http://119.78.100.177/qdio/handle/2XILL650/239518
作者单位	甘肃农业大学水利水电工程学院, 兰州, 甘肃 730070, 中国
推荐引用方式 GB/T 7714	王玉才,张恒嘉,邓浩亮,等. 调亏灌溉下菘蓝耗水量变化特征[J]. 甘肃农业大学,2019,39(2):167-171.
APA	王玉才,张恒嘉,邓浩亮,李福强,黄彩霞,&薛道信.(2019).调亏灌溉下菘蓝耗水量变化特征.水土保持通报,39(2),167-171.
MLA	王玉才,et al."调亏灌溉下菘蓝耗水量变化特征".水土保持通报 39.2(2019):167-171.