Arid
DOI10.1002/ldr.2883
Treated urban wastewater irrigation effects on bioenergy sorghum biomass, quality, and soil salinity in an arid environment
Ganjegunte, Girisha1; Ulery, April2; Niu, Genhua1; Wu, Yanqi3
通讯作者Ganjegunte, Girisha
来源期刊LAND DEGRADATION & DEVELOPMENT
ISSN1085-3278
EISSN1099-145X
出版年2018
卷号29期号:3页码:534-542
英文摘要

Land degradation due to elevated salinity and sodicity is a serious problem affecting many irrigated regions of the world. Salinity coupled with freshwater scarcity has forced many farmers in arid regions to abandon agricultural lands. This study evaluated irrigation potential of marginal quality treated urban wastewater to produce bioenergy sorghum on saline soils collected from an abandoned degraded salt affected lands in Texas and New Mexico under greenhouse conditions. Study results indicated that the energy sorghum biomass production and quality under wastewater irrigation were comparable to that irrigated with freshwater on nonsaline soils. Soil salinity especially in the subsurface increased over time under wastewater irrigation compared to that under freshwater irrigation. Soil sodicity (measured by sodium adsorption ratios) increased over time in all water-soil treatment combinations. Sodicity values were higher in treatments that received wastewater irrigation with no addition of calcium to counter sodium. Although sodicity exceeded the threshold value, no impairment in soil permeability was observed. Study results indicated a great potential for marginal quality water irrigation to improve degraded saline land productivity. Further field studies are required to confirm our greenhouse study results and the potential of bioenergy crops especially on saline soils and to highlight treated wastewater as a potential irrigation source.


英文关键词degraded saline land freshwater scarcity land development marginal water quality soil salinity and sodicity west Texas
类型Article
语种英语
国家USA
收录类别SCI-E
WOS记录号WOS:000428447600013
WOS关键词BICOLOR L. MOENCH ; ORGANIC-CARBON ; ENERGY SORGHUM ; YIELD ; NUTRIENT ; GROWTH
WOS类目Environmental Sciences ; Soil Science
WOS研究方向Environmental Sciences & Ecology ; Agriculture
来源机构New Mexico State University
资源类型期刊论文
条目标识符http://119.78.100.177/qdio/handle/2XILL650/211469
作者单位1.Texas A&M Univ Syst, Texas A&M AgriLife Res, El Paso, TX USA;
2.New Mexico State Univ, Plant & Environm Sci Dept, Las Cruces, NM 88003 USA;
3.Oklahoma State Univ, Dept Plant & Soil Sci, Stillwater, OK 74078 USA
推荐引用方式
GB/T 7714
Ganjegunte, Girisha,Ulery, April,Niu, Genhua,et al. Treated urban wastewater irrigation effects on bioenergy sorghum biomass, quality, and soil salinity in an arid environment[J]. New Mexico State University,2018,29(3):534-542.
APA Ganjegunte, Girisha,Ulery, April,Niu, Genhua,&Wu, Yanqi.(2018).Treated urban wastewater irrigation effects on bioenergy sorghum biomass, quality, and soil salinity in an arid environment.LAND DEGRADATION & DEVELOPMENT,29(3),534-542.
MLA Ganjegunte, Girisha,et al."Treated urban wastewater irrigation effects on bioenergy sorghum biomass, quality, and soil salinity in an arid environment".LAND DEGRADATION & DEVELOPMENT 29.3(2018):534-542.
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