干旱区生态环境知识资源中心(Arid): Is Dairy Effluent an Alternative for Maize Crop Fertigation in Semiarid Regions? An Approach to Agronomic and Environmental Effects

Arid

DOI	10.3390/ani12162025
	Is Dairy Effluent an Alternative for Maize Crop Fertigation in Semiarid Regions? An Approach to Agronomic and Environmental Effects
	Lombardi, Banira; Orden, Luciano; Varela, Patricio; Garay, Maximiliano; Alejandro Iocoli, Gaston; Montenegro, Agustin; Saez-Tovar, Jose; Angeles Bustamante, Maria; Paula Juliarena, Maria; Moral, Raul
通讯作者	Orden, L
来源期刊	ANIMALS
ISSN	2076-2615
出版年	2022
卷号	12 期号:16
英文摘要	Simple Summary Dairy effluent can be an environmental problem if it is not properly managed. Several application technologies exist for its reuse as a source of nutrients in agricultural crops. Our study provides new information on GHG emissions after the application of dairy effluent through a subsurface drip irrigation system on a semiarid soil of the southern Pampean Region (Argentina). In addition, some edaphic properties are compared with conventional chemical fertilization on the yield of a corn crop, contributing as a proposal for an improvement in agricultural sustainability. The reuse of effluents from intensive dairy farms combined with localized irrigation techniques (fertigation) has become a promising alternative to increase crop productivity while reducing the environmental impact of waste accumulation and industrial fertilizers production. Currently, the reuse of dairy effluents through fertigation by subsurface drip irrigation (SDI) systems is of vital importance for arid regions but it has been poorly studied. The present study aimed to assess the greenhouse gas (GHG) emissions, soil properties, and crop yield of a maize crop fertigated with either treated dairy effluent or dissolved granulated urea applied through an SDI system at a normalized N application rate of 200 kg N ha(-1). Fertilizer application was divided into six fertigation events. GHG fluxes were measured during fertigation (62-day) using static chambers. Soil properties were measured previous to fertilizer applications and at the harvest coinciding with crop yield estimation. A slight increase in soil organic matter was observed in both treatments for the 20-60 cm soil depth. Both treatments also showed similar maize yields, but the dairy effluent increased net GHG emissions more than urea during the fertigation period. Nevertheless, the net GHG emissions from the dairy effluent were lower than the theoretical CO(2)eq emission that would have been emitted during urea manufacturing or the longer storage of the effluent if it had not been used, showing the need for life-cycle assessments. Local-specific emission factors for N2O were determined (0.07%), which were substantially lower than the default value (0.5%) of IPCC 2019. Thus, the subsurface drip irrigation systems can lead to low GHG emissions, although further studies are needed.
英文关键词	Zea mays L livestock effluent methane nitrous oxide carbon dioxide subsurface drip fertigation
类型	Article
语种	英语
开放获取类型	gold, Green Published
收录类别	SCI-E
WOS记录号	WOS:000846197600001
WOS关键词	NITROUS-OXIDE EMISSIONS ; LAND APPLICATION ; DRIP IRRIGATION ; WATER ; SOIL ; METHANE ; AMMONIA ; SLURRY ; AMENDMENTS ; SYSTEMS
WOS类目	Agriculture, Dairy & Animal Science ; Veterinary Sciences ; Zoology
WOS研究方向	Agriculture ; Veterinary Sciences ; Zoology
资源类型	期刊论文
条目标识符	http://119.78.100.177/qdio/handle/2XILL650/391822
推荐引用方式 GB/T 7714	Lombardi, Banira,Orden, Luciano,Varela, Patricio,et al. Is Dairy Effluent an Alternative for Maize Crop Fertigation in Semiarid Regions? An Approach to Agronomic and Environmental Effects[J],2022,12(16).
APA	Lombardi, Banira.,Orden, Luciano.,Varela, Patricio.,Garay, Maximiliano.,Alejandro Iocoli, Gaston.,...&Moral, Raul.(2022).Is Dairy Effluent an Alternative for Maize Crop Fertigation in Semiarid Regions? An Approach to Agronomic and Environmental Effects.ANIMALS,12(16).
MLA	Lombardi, Banira,et al."Is Dairy Effluent an Alternative for Maize Crop Fertigation in Semiarid Regions? An Approach to Agronomic and Environmental Effects".ANIMALS 12.16(2022).