Arid
DOI10.1002/clen.201700251
Hydrogel Banding Improves Plant Growth, Survival, and Water Use Efficiency in Two Calcareous Soils
El-Asmar, Jessica1; Jaafar, Hadi1; Bashour, Issam1; Farran, Mohammad T.1; Saoud, Imad P.2
通讯作者Jaafar, Hadi
来源期刊CLEAN-SOIL AIR WATER
ISSN1863-0650
EISSN1863-0669
出版年2017
卷号45期号:7
英文摘要

Improving water use efficiency in the agricultural sector, particularly in arid regions, is becoming increasingly important in response to increasing global population and concomitant demand for food, water, and land. The authors performed experiments to determine whether the use of super-absorbent polymers, also known as hydrogels, can increase plant survival, plant growth, and plant water use efficiency. The effect of hydrogel application proportions and application methods on plant survival and growth in clay and sandy clay loam (SCL) soils was investigated. Two pot experiments using Zea mays and Pinus pinea as model plants were performed. The hydrogel was applied at concentrations of 0, 1, 2, 3, and 4 g kg(-1) soil in one of two methods: Banding or mixing. Hydrogel effects on water retention in the two soil types were recorded. The results suggest that hydrogel banding at 0.4% application in SCL improves corn’s fresh and dry above-ground biomass by 25%, and prolongs survival time of pine seedlings by 90%. Evapotranspiration was greater in soils banded with hydrogel at 0.4% and water use efficiency increased by 10-13% in both soils. Additionally, hydrogel increased water retention of SCL by up to 33% at 100 kPa, but had negligible effects when applied in clay soils. Accordingly, the efficacy of hydrogels in agriculture water conservation depends on using appropriate application methods and quantities.


英文关键词Drought Pine Super absorbent polymers Water management Water productivity
类型Article
语种英语
国家Lebanon
收录类别SCI-E
WOS记录号WOS:000405242300009
WOS关键词HYDROPHILIC POLYMER ; HYDRAULIC CONDUCTIVITY ; SANDY ; RETENTION ; DROUGHT ; AVAILABILITY ; PERFORMANCE ; AMENDMENT ; QUALITY
WOS类目Green & Sustainable Science & Technology ; Environmental Sciences ; Marine & Freshwater Biology ; Water Resources
WOS研究方向Science & Technology - Other Topics ; Environmental Sciences & Ecology ; Marine & Freshwater Biology ; Water Resources
资源类型期刊论文
条目标识符http://119.78.100.177/qdio/handle/2XILL650/198124
作者单位1.Amer Univ Beirut, Dept Agr, POB 110236, Beirut 11002020, Lebanon;
2.Amer Univ Beirut, Dept Biol, Beirut, Lebanon
推荐引用方式
GB/T 7714
El-Asmar, Jessica,Jaafar, Hadi,Bashour, Issam,et al. Hydrogel Banding Improves Plant Growth, Survival, and Water Use Efficiency in Two Calcareous Soils[J],2017,45(7).
APA El-Asmar, Jessica,Jaafar, Hadi,Bashour, Issam,Farran, Mohammad T.,&Saoud, Imad P..(2017).Hydrogel Banding Improves Plant Growth, Survival, and Water Use Efficiency in Two Calcareous Soils.CLEAN-SOIL AIR WATER,45(7).
MLA El-Asmar, Jessica,et al."Hydrogel Banding Improves Plant Growth, Survival, and Water Use Efficiency in Two Calcareous Soils".CLEAN-SOIL AIR WATER 45.7(2017).
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