Final published version
Licence: CC BY: Creative Commons Attribution 4.0 International License
Research output: Contribution to Journal/Magazine › Journal article › peer-review
Research output: Contribution to Journal/Magazine › Journal article › peer-review
}
TY - JOUR
T1 - A new approach to holistic nitrogen management in China
AU - Liu, X.
AU - Cui, Z.
AU - Yuan, L
AU - Zhang, Y
AU - Gu, B
AU - Xu, B
AU - Ying, H
AU - Zhang, W
AU - Li, T
AU - Yan, X
AU - Goulding, Keith
AU - Kanter, D
AU - Howarth, R
AU - Stevens, Carly
AU - Ladha, J.
AU - Li, Q
AU - L, Liu
AU - De Vries, W.
AU - Zhang, F
PY - 2022/9/9
Y1 - 2022/9/9
N2 - Since the 1980s, the widespread use of N fertilizer has not only resulted in a strong increase in agricultural productivity but also caused a number of environmental problems, induced by excess reactive N emissions. A range of approaches to improve N management for increased agricultural production together with reduced environmental impacts has been proposed. The 4R principles (right product, right amount, right time and right place) for N fertilizer application have been essential for improving crop productivity and N use efficiency while reducing N losses. For example, site-specific N management (as part of 4R practice) reduced N fertilizer use by 32% and increased yield by 5% in China. However, it has not been enough to overcome the challenge of producing more food with reduced impact on the environment and health. This paper proposes a new framework of food-chain-nitrogen-management (FCNM). This involves good N management including the recycling of organic manures, optimized crop and animal production and improved human diets, with the aim of maximizing resource use efficiency and minimizing environmental emissions. FCNM could meet future challenges for food demand, resource sustainability and environmental safety, key issues for green agricultural transformation in China and other countries.
AB - Since the 1980s, the widespread use of N fertilizer has not only resulted in a strong increase in agricultural productivity but also caused a number of environmental problems, induced by excess reactive N emissions. A range of approaches to improve N management for increased agricultural production together with reduced environmental impacts has been proposed. The 4R principles (right product, right amount, right time and right place) for N fertilizer application have been essential for improving crop productivity and N use efficiency while reducing N losses. For example, site-specific N management (as part of 4R practice) reduced N fertilizer use by 32% and increased yield by 5% in China. However, it has not been enough to overcome the challenge of producing more food with reduced impact on the environment and health. This paper proposes a new framework of food-chain-nitrogen-management (FCNM). This involves good N management including the recycling of organic manures, optimized crop and animal production and improved human diets, with the aim of maximizing resource use efficiency and minimizing environmental emissions. FCNM could meet future challenges for food demand, resource sustainability and environmental safety, key issues for green agricultural transformation in China and other countries.
KW - 4R technology
KW - food chain N management
KW - N use efficiency
KW - soil-crop system
KW - sustainable management
U2 - 10.15302/J-FASE-2022453
DO - 10.15302/J-FASE-2022453
M3 - Journal article
VL - 9
SP - 490
EP - 510
JO - Frontiers of Agricultural Science and Engineering
JF - Frontiers of Agricultural Science and Engineering
IS - 3
ER -