Producing more potatoes with lower inputs and greenhouse gases emissions by regionalized cooperation in China

Huang, Yue; Gao, Bing; Huang, Wei; Wang, Lan; Fang, Xuejuan; Su, Xu; Cui, Shenghui

doi:10.1016/j.jclepro.2021.126883

Cited by 26 publications

(37 citation statements)

References 45 publications

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“…The study boundary of this study focuses on the abovementioned six potato production regions in China. In 2017, NE (Heilongjiang, Jilin, Liaoning), NC (Beijing, Tianjin, Hebei, Henan, Shandong, Shanxi), NW (Inner Mongolia, Shaanxi, Gansu, Ningxia, Qinghai, Xinjiang), MLRYR (Hubei, Hunan, Jiangxi, Anhui, Jiangsu, Zhejiang, Shanghai), SW (Sichuan, Chongqing, Yunnan, Guizhou, Tibet), and SE (Fujian, Guangdong, Guangxi, Hainan) accounted for 5.9%, 6.8%, 31.6%, 7.5%, 45.1% and 3.1% of the total potato cultivation area, respectively [24,31].…”

Section: Description Of the Study Boundariesmentioning

confidence: 99%

“…Therefore, we are placing emphasis on the new N and P inputs for potatoes at the field level. The new N input included N input from chemical fertilizers, irrigation water, atmospheric N deposition, and BNF [24]. The new P input included P from the first three sources of the new N plus P contained in the applied pesticides.…”

Section: Description Of the Study Boundariesmentioning

confidence: 99%

“…The new P input included P from the first three sources of the new N plus P contained in the applied pesticides. Two indicators have been reported in our previous study [24]. Normally, water input for crops included irrigation water, precipitation, and the changes of soil water storage in a given depth before potato sowing and in harvesting time minus surface runoff and downward flux below the crop root zone [33].…”

Section: Description Of the Study Boundariesmentioning

confidence: 99%

“…The GHG emissions included soil nitrous oxide (N 2 O) and methane (CH 4 ) emissions, CO 2 e emitted from the utilization of chemical N, P, and potassium (K) fertilizers, power used specifically for agricultural irrigation, fuel in farm operations, pesticides and plastic film used for mulching, and included annual soil organic carbon (SOC) sequestration [17,20,34]. The net GHG balance of each potato cultivation region was calculated under the conventional and optimized measures in our previous study [24] by considering soil N 2 O and CH 4 emissions, annual SOC storage change (δSOC, kg C ha −1 yr −1 ), and the CO 2 e fluxes from agricultural inputs in potato sowing to harvest using a life cycle approach (Equation ( 1)) [17,20,24].…”

Section: Description Of the Study Boundariesmentioning

confidence: 99%

“…Potatoes rank as the fourth largest food crop worldwide, as well as in China [24,25]. They are planted widely in the six Chinese agricultural regions-the northeast (NE), northwest (NW), the north (NC), the middle and lower reaches of the Yangtze River (MLRYR), the southwest (SW), and the south of China (SC)-because their growth demands less water and fertilizer than cereal crops [26].…”

Section: Introductionmentioning

confidence: 99%

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Virtual New Nitrogen, Phosphorus, Water Input, and Greenhouse Gas Emission Indicators for the Potatoes Consumed in China

et al. 2022

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Based on China’s potato staple food policy, we chose potatoes as a study case to analyze the following indicators—the virtual new nitrogen factor (VNNF), the virtual new phosphorus factor (VNPF), the virtual irrigation-water (IW) factor (VIWF), the virtual total water (IW + precipitation) factor (VTWF), and the virtual greenhouse gas (GHG) emission factor (VCF) of the potatoes consumed by households in the six potato cultivation regions—by reviewing 220 publications from 2000 to 2020. The results showed that the VNNF ranged between 17.8 ± 7.8 and 30.1 ± 17.0 kg N kg−1 N in the consumed potato, the VNPF ranged between 8.4 ± 5.0 and 18.8 ± 11.3 kg P kg−1 P in the consumed potato, the VIWF ranged between 0.3 ± 1.0 and 1.8 ± 1.4 m3 IW kg−1 for the consumed standard yield (except in the three mainly rainfed potato regions), the VTWF ranged between 4.8 ± 2.2 and 9.3 ± 3.7 m3 total water kg−1 for the consumed standard yield, and the VCF ranged between 3.4 ± 1.5 and 5.9 ± 2.4 kg CO2 equivalent kg−1 for the consumed standard yield, under the conventional practice in the six potato cultivation regions. The normalization score results indicate that the northeast, northwest, southwest, and south of China are relatively more suitable regions in which to plant potatoes, based on the VNNF, VNPF, VIWF or VTWF, and VCF indicators.

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Section: Description Of the Study Boundariesmentioning

confidence: 99%

Section: Description Of the Study Boundariesmentioning

confidence: 99%

Section: Description Of the Study Boundariesmentioning

confidence: 99%

Section: Description Of the Study Boundariesmentioning

confidence: 99%

Section: Introductionmentioning

confidence: 99%

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Virtual New Nitrogen, Phosphorus, Water Input, and Greenhouse Gas Emission Indicators for the Potatoes Consumed in China

et al. 2022

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Nitrogen Management for Optimum Potato Yields and Low Environmental Impact in Northwest China

Yang,

Di,

Zhang

et al. 2024

Potato Res.

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Understanding the changes in nitrate nitrogen (NO 3 − -N) content in the rooting zone is crucial for reducing nitrate leaching and improving nitrogen (N) use e ciency. The main objective of this study was to investigate the effects of N management strategies on NO 3 − -N dynamics in the main root zone (0-60 cm) at critical growth stages of drip-irrigated potatoes and to quantify the retention capacity of NO 3 − -N at harvest in an intensive potato cropping system. Three eld experiments with no N application (CK), optimized management (OM) based on a realistic yield goal and soil mineral N content (N min ) and farmer practice (FP) for three potato cultivars were conducted in Inner Mongolia of Northwest China from 2014 to 2016. A total of 52 farmers with over 3000 hectares of potato elds were also investigated at harvest. The results showed that OM treatment improved N use e ciency and reduced the environmental risk of N loss while ensuring potato yields. Overusing N fertilizer in farmer elds was common, but these N fertilizers only caused a temporary accumulation of NO 3 − -N during the growing season, then was reduced to the same level as the optimal treatment at harvest. The NO 3 − -N retention was about 70 kg ha − 1 at harvest in the drip-irrigated potatoes with higher yield and the data from farmers' elds con rmed the universality of the NO 3 − -N retention content. Although retentional NO 3 − -N content in the main root zone at harvest was similar between FP and OM, over-application of N and additional leaching loss from FP were observed. The characteristics of soil NO 3 − -N accumulation in the root zone of drip-irrigated potatoes help to improve management strategies to maximize potato yield while minimizing environmental risks due to N fertilization.

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Carbon Footprint and Emission Reduction Strategies During Potato Cultivation

Biswas,

Haque,

Ishtiaque

et al. 2024

Agric Res

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Producing more potatoes with lower inputs and greenhouse gases emissions by regionalized cooperation in China

Cited by 26 publications

References 45 publications

Virtual New Nitrogen, Phosphorus, Water Input, and Greenhouse Gas Emission Indicators for the Potatoes Consumed in China

Virtual New Nitrogen, Phosphorus, Water Input, and Greenhouse Gas Emission Indicators for the Potatoes Consumed in China

Nitrogen Management for Optimum Potato Yields and Low Environmental Impact in Northwest China

Carbon Footprint and Emission Reduction Strategies During Potato Cultivation

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