Arid
DOI10.1061/(ASCE)IR.1943-4774.0001542
Influence of Saline Water Irrigation on Root Distribution, Wheat Yield, and Soil Salinity
Jiang, Jing; Zhai, Dengpan; Zhang, Chaobo; Ma, Juanjuan
通讯作者Jiang, J (corresponding author), Taiyuan Univ Technol, Coll Water Resources Sci & Engn, 79 Yingzexi Rd, Taiyuan 030024, Shanxi, Peoples R China.
来源期刊JOURNAL OF IRRIGATION AND DRAINAGE ENGINEERING
ISSN0733-9437
EISSN1943-4774
出版年2021
卷号147期号:4
英文摘要The development of irrigated agriculture in northwest China is restricted by shortages of fresh water and groundwater salinization. Saline water irrigation may cause salt accumulation in the soil, which results in salt stress to roots. The effects of water salinity and irrigation amount on wheat root distribution and yield, as well as soil salt distribution, were evaluated in field experiments conducted in 2014 and 2015 at the Shiyanghe Experimental Station of the China Agricultural University (102 degrees 52 ' E, 37 degrees 52 ' N), located in the Liangzhou District, in the city of Wuwei in northwest China. A total of 12 treatments including 4 levels of irrigation water salinity as indicated by electrical conductivity (0.65, 3.2, 5.2, and 7.1 dS m-1) and 3 levels of irrigation amount (205, 280, and 355 mm), were established using a randomized block design. Freshwater with an electrical conductivity of 0.65 dS m-1 and an irrigation amount of 355 mm was used as the control for salinity and irrigation level. The results showed that the influence of irrigation amount and water salinity on root distribution was mainly in the top 40-cm. Irrigation amount had no statistically significant (p>0.05) effects on the average root length density (RLD) in the 2-year experiment. A decrease in irrigation amount reduced root biomass (RB) at maturity when water salinity ranged from 0.65 to 5.2 dS m-1. Water salinity less than 3.2 dS m-1 stimulated root growth in the soil layers 10-40-cm at the heading stage without obvious yield reduction or salt accumulation. However, water salinities of 5.2 and 7.1 dS m-1 led to decreases in RLD in the 0-10-cm layer and RB at the maturity stage, and a significant decrease in yield (p<0.05) in both years. The interaction effects of irrigation amount and water salinity had no statistically significant (p>0.05) effects on root parameters and yield. In the absence of rainfall, a regime with irrigation amounts between 205 and 355 mm and water salinity between 0.65 and 5.2 dS m-1 can ensure a 70% yield.
英文关键词Water salinity Irrigation amount Root length density Root biomass Yield components Electrical conductivity of the saturated soil extract (ECe)
类型Article
语种英语
收录类别SCI-E
WOS记录号WOS:000653750800006
WOS关键词WINTER-WHEAT ; USE EFFICIENCY ; ARID REGIONS ; SPRING WHEAT ; GROWTH ; STRESS ; IMPACT ; CROP ; PRODUCTIVITY ; BASIN
WOS类目Agricultural Engineering ; Engineering, Civil ; Water Resources
WOS研究方向Agriculture ; Engineering ; Water Resources
资源类型期刊论文
条目标识符http://119.78.100.177/qdio/handle/2XILL650/350929
作者单位[Jiang, Jing; Zhai, Dengpan; Zhang, Chaobo; Ma, Juanjuan] Taiyuan Univ Technol, Coll Water Resources Sci & Engn, 79 Yingzexi Rd, Taiyuan 030024, Shanxi, Peoples R China
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GB/T 7714
Jiang, Jing,Zhai, Dengpan,Zhang, Chaobo,et al. Influence of Saline Water Irrigation on Root Distribution, Wheat Yield, and Soil Salinity[J],2021,147(4).
APA Jiang, Jing,Zhai, Dengpan,Zhang, Chaobo,&Ma, Juanjuan.(2021).Influence of Saline Water Irrigation on Root Distribution, Wheat Yield, and Soil Salinity.JOURNAL OF IRRIGATION AND DRAINAGE ENGINEERING,147(4).
MLA Jiang, Jing,et al."Influence of Saline Water Irrigation on Root Distribution, Wheat Yield, and Soil Salinity".JOURNAL OF IRRIGATION AND DRAINAGE ENGINEERING 147.4(2021).
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