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| Nitrogen mobility, ammonia volatilization, and estimated leaching loss from long-term manure incorporation in red soil |
| HUANG Jing1, 2, 3, DUAN Ying-hua2, XU Ming-gang2, ZHAI Li-mei2, ZHANG Xu-bo4, WANG Bo-ren2, 3, HANG Yang-zhu1, GAO Su-duan5, SUN Nan2 |
1 College of Resources and Environment, Hunan Agricultural University, Changsha 410128, P.R.China
2 Institute of Agricultural Resources and Regional Planning, Chinese Academy of Agricultural Sciences (CAAS)/National Engineering Laboratory for Improving Quality of Arable Land, Beijing 100081, P.R.China
3 Red Soil Experimental Station of CAAS in Hengyang/National Observation and Research Station of Farmland Ecosystem in Qiyang, Qiyang 426182, P.R.China
4 Key Laboratory of Ecosystem Network Observation and Modeling/Yucheng Comprehensive Experiment Station, Institute of Geographic Sciences and Natural Resources Research, Chinese Academy of Sciences, Beijing 100101, P.R.China
5 USDA Agricultural Research Service, San Joaquin Valley Agricultural Sciences Center, CA 93648-9757, USA |
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Abstract Nitrogen (N) loss from fertilization in agricultural fields has an unavoidable negative impact on the environment and a better
understanding of the major pathways can assist in developing the best management practices. The aim of this study was
to evaluate the fate of N fertilizers applied to acidic red soil (Ferralic Cambisol) after 19 years of mineral (synthetic) and
manure fertilizer treatments under a cropping system with wheat-maize rotations. Five field treatments were examined:
control (CK), chemical nitrogen and potash fertilizer (NK), chemical nitrogen and phosphorus fertilizer (NP), chemical nitrogen,
phosphorus and potash fertilizer (NPK) and the NPK with manure (NPKM, 70% N from manure). Based on the soil
total N storage change in 0–100 cm depth, ammonia (NH3) volatilization, nitrous oxide (N2O) emission, N plant uptake, and
the potential N leaching loss were estimated using a mass balance approach. In contrast to the NPKM, all mineral fertilizer
treatments (NK, NP and NPK) showed increased nitrate (NO3–-N) concentration with increasing soil depth, indicating higher
leaching potential. However, total NH3 volatilization loss was much higher in the NPKM (19.7%) than other mineral fertilizer
treatments (≤4.2%). The N2O emissions were generally low (0.2–0.9%, the highest from the NPKM). Total gaseous loss
accounted for 1.7, 3.3, 5.1, and 21.9% for NK, NP, NPK, and NPKM treatments, respectively. Estimated N leaching loss
from the NPKM was only about 5% of the losses from mineral fertilizer treatments. All data demonstrated that manure
incorporation improved soil productivity, increased yield, and reduced potential leaching, but with significantly higher NH3
volatilization, which could be reduced by improving the application method. This study confirms that manure incorporation is an essential strategy in N fertilization management in upland red soil cropping system.
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Received: 26 August 2016
Accepted:
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| Fund: This work was supported by the National Key Research and Development Program of China (2016YFD0200301), the open fund of Key Laboratory of Non-point Source Pollution Control, Ministry of Agriculture, China (20130104) and the Key Technologies R&D Program of China during the 12th Five-year Plan period (2012BAD14B04). |
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Corresponding Authors:
ZHANG Yang-zhu,
E-mail: zhangyangzhu2006@163.com; SUN Nan,
E-mail: sunnan@caas.cn
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| About author: HUANG Jing, Tel: +86-746-3841027, E-mail: huangjing@caas.
cn; |
Cite this article:
HUANG Jing, DUAN Ying-hua, XU Ming-gang, ZHAI Li-mei, ZHANG Xu-bo, WANG Bo-ren, ZHANG Yang-zhu, GAO Su-duan, SUN Nan.
2017.
Nitrogen mobility, ammonia volatilization, and estimated leaching loss from long-term manure incorporation in red soil. Journal of Integrative Agriculture, 16(09): 2082-2092.
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