Responses of nitrogen utilization and apparent nitrogen loss to different control measures in the wheat and maize rotation sytsem
Article
Article Title | Responses of nitrogen utilization and apparent nitrogen loss to different control measures in the wheat and maize rotation sytsem |
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ERA Journal ID | 200524 |
Article Category | Article |
Authors | Peng, Zhengping (Author), Liu, Yanan (Author), Li, Yingchun (Author), Abawi, Yahya (Author), Wang, Yanqun (Author), Men, Minxin (Author) and An-Vo, Duc-Anh (Author) |
Journal Title | Frontiers in Plant Science |
Journal Citation | 8, pp. 1-9 |
Article Number | 160 |
Number of Pages | 9 |
Year | 2017 |
Publisher | Frontiers Media SA |
Place of Publication | Switzerland |
ISSN | 1664-462X |
Digital Object Identifier (DOI) | https://doi.org/10.3389/fpls.2017.00160 |
Web Address (URL) | https://www.frontiersin.org/articles/10.3389/fpls.2017.00160/full |
Abstract | Nitrogen (N) is an essential macronutrient for plant growth and excessive application rates can decrease crop yield and increase N loss into the environment. Field experiments were carried out to understand the effects of N fertilizers on N utilization, crop yield and net income in wheat and maize rotation system of the North China Plain (NCP). Compared to farmers’ N rate (FN), the yield of wheat and maize in reduction N rate by 21–24% based on FN (RN) was improved by 451 kg ha-1, N uptakes improved by 17 kg ha-1 and net income increased by 1671 CNY ha-1, while apparent N loss was reduced by 156 kg ha-1. The controlled-release fertilizer with a 20% reduction of RN (CRF80%), a 20% reduction of RN together with dicyandiamide (RN80%+DCD) and a 20% reduction of RN added with nano-carbon (RN80%+NC) all resulted in an improvement in crop yield and decreased the apparent N losses compared to RN. Contrasted with RN80%+NC, the total crop yield in RN80%+DCD improved by 1185 kg ha-1, N uptake enhanced by 9 kg ha-1 and net income increased by 3929 CNY ha-1, while apparent N loss was similar. Therefore, a 37–39% overall decrease in N rate compared to farmers plus the nitrification inhibitor, DCD, was effective N control measure that increased crop yields, enhanced N efficiencies, and improved economic benefits, while mitigating apparent N loss. There is considerable scope for improved N use effieincy in the intensive wheat -maize rotation of the NCP. |
Keywords | apparent nitrogen loss, maize, net income, nitrogen efficiency, nitrogen fertilizer measures, wheat |
ANZSRC Field of Research 2020 | 300407. Crop and pasture nutrition |
Byline Affiliations | Agricultural University of Hebei, China |
Chinese Academy of Agricultural Sciences, China | |
International Centre for Applied Climate Sciences | |
International Centre for Applied Climate Science | |
Institution of Origin | University of Southern Queensland |
https://research.usq.edu.au/item/q3x0z/responses-of-nitrogen-utilization-and-apparent-nitrogen-loss-to-different-control-measures-in-the-wheat-and-maize-rotation-sytsem
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