Performance of matrix-based slow-release urea in reducing nitrogen loss and improving maize yields and profits

doi:10.1016/j.fcr.2017.07.005

	Performance of matrix-based slow-release urea in reducing nitrogen loss and improving maize yields and profits
	Yang, Yang; Ni, Xiaoyu; Zhou, Zijun; Yu, Lixiang; Liu, Binmei; Yang, Ye; Wu, Yuejin
	2017-10-01
发表期刊	FIELD CROPS RESEARCH
摘要	To reduce N loss in field crop production, application of slow-release fertilizers with acceptable cost is a possible option. Matrix-based urea is a novel, low-cost, slow-release urea developed in the past 10 years. However, there is little consensus about the effects of matrix-based urea on N loss, field maize yields, N use efficiency and profitability. The current study aimed to (i) determine the effects of matrix-based urea on N loss, maize yields, and N use efficiency and elucidate the possible mechanisms; and (ii) assess whether the profitability is acceptable to maize growers. A 2-year field experiment was conducted during 2015-2016 following a randomized block design with three treatments: control test (CK, without urea application), common urea treatment (CU, 195 kg N ha(-1)) and matrix-based urea treatment (MU, 195 kg N ha(-1)). Additionally, two laboratory tests were conducted to assess N leaching and ammonia emission from matrix-based urea. The results showed that due to increases in grain number per ear and 1000-grain weight, grain yields with MU were 6.3 and 14.7% greater than those with CU in 2015 and 2016, respectively. Agronomic efficiency (AE) and apparent recovery efficiency (ARE) were greater with MU than with CU. Greater grain yield, biomass, AE, and ARE with MU were attributed to better plant development, i.e., greater plant height, leaf area, root area, chlorophyll concentration, carotenoid concentration, nitrate reductase activity, and glutamine synthetase activity. Better plant development with MU was related to greater available N in the 0-20-cm top soil layers, due to decreased N leaching and ammonia emission. The profitability of maize production with MU was 118.7 and 176.0 USD ha(-1) greater than with CU in 2015 and 2016, respectively. Overall, matrix-based urea performs well at reducing N loss and improving maize yields, AE, ARE, and profitability, and is thus suitable for application in field maize production.
文章类型	Article
关键词	Corn Zea Mays L. Bentonite Polyacrylamide Low Cost
WOS标题词	Science & Technology ; Life Sciences & Biomedicine
DOI	10.1016/j.fcr.2017.07.005
关键词[WOS]	AMMONIA VOLATILIZATION ; USE EFFICIENCY ; SYSTEM ; SOIL ; WHEAT ; FERTILIZER ; WATER ; POLYACRYLAMIDE ; MANAGEMENT ; FIELDS
收录类别	SCI
语种	英语
项目资助者	National Natural Science Foundation of China(31601828) ; National Natural Science Foundation of China(31601828) ; National Natural Science Foundation of China(31601828) ; National Natural Science Foundation of China(31601828) ; National Natural Science Foundation of China(31601828) ; National Natural Science Foundation of China(31601828) ; National Natural Science Foundation of China(31601828) ; National Natural Science Foundation of China(31601828) ; National Key Research and Development Program of China(2017YFD0301302) ; National Key Research and Development Program of China(2017YFD0301302) ; National Key Research and Development Program of China(2017YFD0301302) ; National Key Research and Development Program of China(2017YFD0301302) ; National Key Research and Development Program of China(2017YFD0301302) ; National Key Research and Development Program of China(2017YFD0301302) ; National Key Research and Development Program of China(2017YFD0301302) ; National Key Research and Development Program of China(2017YFD0301302) ; Science and Technology Service Network Initiative of Chinese Academy of Sciences(KFJ-STS-QYZD-020 ; Science and Technology Service Network Initiative of Chinese Academy of Sciences(KFJ-STS-QYZD-020 ; Science and Technology Service Network Initiative of Chinese Academy of Sciences(KFJ-STS-QYZD-020 ; Science and Technology Service Network Initiative of Chinese Academy of Sciences(KFJ-STS-QYZD-020 ; Science and Technology Service Network Initiative of Chinese Academy of Sciences(KFJ-STS-QYZD-020 ; Science and Technology Service Network Initiative of Chinese Academy of Sciences(KFJ-STS-QYZD-020 ; Science and Technology Service Network Initiative of Chinese Academy of Sciences(KFJ-STS-QYZD-020 ; Science and Technology Service Network Initiative of Chinese Academy of Sciences(KFJ-STS-QYZD-020 ; KFJ-STS-ZDTP-002) ; KFJ-STS-ZDTP-002) ; KFJ-STS-ZDTP-002) ; KFJ-STS-ZDTP-002) ; KFJ-STS-ZDTP-002) ; KFJ-STS-ZDTP-002) ; KFJ-STS-ZDTP-002) ; KFJ-STS-ZDTP-002)
WOS研究方向	Agriculture
WOS类目	Agronomy
WOS记录号	WOS:000408784900008
引用统计	被引频次：39[WOS] [WOS记录] [WOS相关记录]
文献类型	期刊论文
条目标识符	http://ir.hfcas.ac.cn:8080/handle/334002/30942
专题	技术生物与农业工程研究所
作者单位	Chinese Acad Sci, Hefei Inst Phys Sci, Key Lab High Magnet Field & Ion Beam Phys Biol, Hefei 230031, Anhui, Peoples R China
推荐引用方式 GB/T 7714	Yang, Yang,Ni, Xiaoyu,Zhou, Zijun,et al. Performance of matrix-based slow-release urea in reducing nitrogen loss and improving maize yields and profits[J]. FIELD CROPS RESEARCH,2017,212(无):73-81.
APA	Yang, Yang.,Ni, Xiaoyu.,Zhou, Zijun.,Yu, Lixiang.,Liu, Binmei.,...&Wu, Yuejin.(2017).Performance of matrix-based slow-release urea in reducing nitrogen loss and improving maize yields and profits.FIELD CROPS RESEARCH,212(无),73-81.
MLA	Yang, Yang,et al."Performance of matrix-based slow-release urea in reducing nitrogen loss and improving maize yields and profits".FIELD CROPS RESEARCH 212.无(2017):73-81.

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