干旱区生态环境知识资源中心(Arid): Minimizing Soil Nitrogen Leaching by Changing Furrow Irrigation into Sprinkler Fertigation in Potato Fields in the Northwestern China Plain

Arid

DOI	10.3390/w12082229
	Minimizing Soil Nitrogen Leaching by Changing Furrow Irrigation into Sprinkler Fertigation in Potato Fields in the Northwestern China Plain
	Yang, Wenzhu; Jiao, Yan; Yang, Mingde; Wen, Huiyang; Gu, Peng; Yang, Jie; Liu, Lijia; Yu, Junxia
通讯作者	Jiao, Y
来源期刊	WATER
EISSN	2073-4441
出版年	2020
卷号	12 期号:8
英文摘要	Irrigation water is limiting for crop production in arid areas and application rates of fertilizers often exceed crop requirements, resulting in high accumulation of nitrate nitrogen (NO3--N) in the soil. Management practices play a significant role in the leaching of NO3--N. This experiment compares the effects of traditional furrow irrigation and sprinkler fertigation on the soil NO3--N concentration trend throughout the cropping season in potato fields in China. Two irrigation systems that were fertilized, namely by furrow (NF-FI) and sprinkler fertigation (NF-SI), and two controlling without any fertilizer (C-FI and C-SI) were tested in the same experimental site for three consecutive years. Both the NF-FI soils and NF-SI soils with three replications and fertilizer applications of 273 kg N ha(-1)exhibited a different trend of NO3--N accumulation at different depths of soil profile. However, the magnitude of NO3--N accumulation was low in the NF-SI soil profile. In NF-SI treatments, higher NO3--N was observed at 20-40 cm soil layer. In the NF-FI, the concentration of the highest nitrate was observed at the 40-120 cm soil layer. The concentrations of NO3--N in the fertilized soil were higher than those of the control soil for each irrigation system. Residual levels of NO3--N in the soil depth of 40-120 cm from NF-FI were 1.54, 3.45 and 5.28 times higher than NF-SI after harvesting potatoes from 2015 to 2017. In NF-FI treatments, apparent nitrogen loss was 234.7, 237.5 and 276.7 kg ha(-1)after harvesting potatoes in 2015, 2016 and 2017. Meanwhile, apparent nitrogen loss from NF-SI treatments was only 161.9, 132.1 and 148.9 kg ha(-1), which was 31.0%, 44.4% and 46.2% lower than that of NF-FI in 2015, 2016 and 2017, respectively. The risk of NO3--N leaching below the root zone from NF-FI was higher than that from NF-SI. It has been demonstrated that sprinkler fertigation can also be used as a tool for mitigating NO3--N accumulation and apparent nitrogen loss.
英文关键词	sprinkler fertigation potato nitrate nitrogen furrow irrigation apparent nitrogen loss
类型	Article
语种	英语
开放获取类型	DOAJ Gold
收录类别	SCI-E
WOS记录号	WOS:000564827100001
WOS关键词	WINTER-WHEAT ; WATER PRODUCTIVITY ; DRIP ; YIELD ; MINERALIZATION ; MANAGEMENT ; FERTILIZER ; EFFICIENCY ; BALANCE
WOS类目	Water Resources
WOS研究方向	Water Resources
资源类型	期刊论文
条目标识符	http://119.78.100.177/qdio/handle/2XILL650/325955
作者单位	[Yang, Wenzhu; Jiao, Yan; Yang, Mingde; Wen, Huiyang; Gu, Peng; Yang, Jie; Liu, Lijia; Yu, Junxia] Inner Mongolia Normal Univ, Inner Mongolia Key Lab Environm Chem, Hohhot 010022, Peoples R China; [Yang, Wenzhu; Jiao, Yan; Yang, Mingde; Wen, Huiyang; Gu, Peng; Yang, Jie; Liu, Lijia; Yu, Junxia] Inner Mongolia Normal Univ, Coll Chem & Environm Sci, Hohhot 010022, Peoples R China
推荐引用方式 GB/T 7714	Yang, Wenzhu,Jiao, Yan,Yang, Mingde,et al. Minimizing Soil Nitrogen Leaching by Changing Furrow Irrigation into Sprinkler Fertigation in Potato Fields in the Northwestern China Plain[J],2020,12(8).
APA	Yang, Wenzhu.,Jiao, Yan.,Yang, Mingde.,Wen, Huiyang.,Gu, Peng.,...&Yu, Junxia.(2020).Minimizing Soil Nitrogen Leaching by Changing Furrow Irrigation into Sprinkler Fertigation in Potato Fields in the Northwestern China Plain.WATER,12(8).
MLA	Yang, Wenzhu,et al."Minimizing Soil Nitrogen Leaching by Changing Furrow Irrigation into Sprinkler Fertigation in Potato Fields in the Northwestern China Plain".WATER 12.8(2020).