干旱区生态环境知识资源中心(Arid): Effects of treated urban wastewater irrigation on bioenergy sorghum and soil quality

Arid

DOI	10.1016/j.agwat.2019.105894
	Effects of treated urban wastewater irrigation on bioenergy sorghum and soil quality
	Chaganti, Vijayasatya N.1; Ganjegunte, Girisha 1; Niu, Genhua 1; Ulery, April 2; Flynn, Robert 2; Enciso, Juan M.3; Meki, Manyowa N.4; Kiniry, James R.5
通讯作者	Chaganti, Vijayasatya N.
来源期刊	AGRICULTURAL WATER MANAGEMENT
ISSN	0378-3774
EISSN	1873-2283
出版年	2020
卷号	228
英文摘要	Prolonged drought in arid west Texas has resulted in freshwater scarcities in the Rio Grande basin, forcing growers to abandon agricultural lands. Augmenting freshwater scarcities with marginal quality treated urban wastewater could be an alternative strategy. However, higher salinity in wastewater could be detrimental to crops and soil quality. Therefore, developing information on crops that are salt tolerant and less water-intensive is important to sustain agriculture in this region. Sorghum is both drought and salt-tolerant and could potentially provide revenue due to increasing demand for its lignocellulosic biomass in biofuel industry. This two-year field study evaluated (i) the performance of bioenergy sorghum under wastewater irrigation in terms of its biomass yield potential and biomass quality relative to freshwater irrigation and (ii) wastewater irrigation effects on rootzone soil quality including soil salinity and sodicity. A split-plot experimental design was used with water type (fresh and wastewater) as the main-plot and soil amendments (non-amended and gypsum + sulfur) as the subplot factors. Results show that sorghum biomass yields were not significantly different between fresh and wastewaters in any of the years. Differences in biomass quality were observed overtime but as an indirect consequence of increased soil salinity and/or sodicity after wastewater irrigation. Soil quality changes were apparent with salinity and sodicity increasing over time with irrigation, but this effect was pronounced under wastewater irrigation. Application of gypsum and sulfur was able to significantly reduce soil sodicity, especially in wastewater irrigated plots. The results from this study highlight that treated wastewater can be successfully used to grow bioenergy sorghum in arid regions. However, appropriate soil management practices should be in place to counter the effects of high sodium in wastewater. These results have important implications in diversifying cropping pattern in this region while also help extend freshwater supplies through increased reuse of treated urban wastewater.
英文关键词	Drought Irrigation water quality and reuse Bioenergy sorghum Soil salinity and sodicity Soil management Diversified cropping systems
类型	Article
语种	英语
国家	USA
开放获取类型	Bronze
收录类别	SCI-E
WOS记录号	WOS:000525279000028
WOS关键词	SALINE-SODIC SOIL ; ENERGY SORGHUM ; BIOMASS YIELD ; USE EFFICIENCY ; GENETIC MODEL ; MARGINAL LAND ; GROWTH ; NITROGEN ; GYPSUM ; REUSE
WOS类目	Agronomy ; Water Resources
WOS研究方向	Agriculture ; Water Resources
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/2XILL650/313939
作者单位	1.Texas A&M Agrilife Res, El Paso Res & Extens Ctr, 1380 A&M Circle, El Paso, TX 79927 USA; 2.New Mexico State Univ, Dept Plant & Environm Sci, Las Cruces, NM 88003 USA; 3.Texas A&M AgriLife Res, Weslaco Res & Extens Ctr, 2415 E Highway 83, Weslaco, TX 78596 USA; 4.Texas A&M AgriLife Res, Blackland Res & Extens Ctr, 720 E Blackland Rd, Temple, TX 76502 USA; 5.ARS, Grassland Soil & Water Res Lab, USDA, 808 E Blackland Rd, Temple, TX 76502 USA
推荐引用方式 GB/T 7714	Chaganti, Vijayasatya N.,Ganjegunte, Girisha,Niu, Genhua,et al. Effects of treated urban wastewater irrigation on bioenergy sorghum and soil quality[J]. New Mexico State University,2020,228.
APA	Chaganti, Vijayasatya N..,Ganjegunte, Girisha.,Niu, Genhua.,Ulery, April.,Flynn, Robert.,...&Kiniry, James R..(2020).Effects of treated urban wastewater irrigation on bioenergy sorghum and soil quality.AGRICULTURAL WATER MANAGEMENT,228.
MLA	Chaganti, Vijayasatya N.,et al."Effects of treated urban wastewater irrigation on bioenergy sorghum and soil quality".AGRICULTURAL WATER MANAGEMENT 228(2020).