Knowledge Resource Center for Ecological Environment in Arid Area
DOI | 10.1002/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
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ISSN | 1863-0650 |
EISSN | 1863-0669 |
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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