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With the rapid development of circular agriculture in China, balancing agricultural income and environmental impact by adjusting the structure and scale of circular agriculture is becoming increasingly important. Agriculture is a major source of greenhouse gas and income earned from agriculture drives sustainable agricultural development. This paper built a multi-objective linear programming model based on greenhouse gas emission and agricultural product income and then optimized the structure and scale of circular agriculture using Beiqiu Farm as a case study. Results showed that greenhouse gas emission was mainly from manure management in livestock industry. While the agriculture income increased by 64% after optimization, GHG emission increased by only 12.3%. The optimization made full use of straw, manure and fodder, but also minimized soil nitrogen loss. The results laid a generalized guide for adjusting the structure and scale of the planting and raising industry. Measures for optimizing the management of manure were critical in achieving low agricultural carbon emissions in future agricultural development efforts.
Sheng Hang; Jing Li; Xiangbo Xu; Yun Lyu; Yang Li; Huarui Gong; Yan Xu; Zhu Ouyang. An Optimization Scheme of Balancing GHG Emission and Income in Circular Agriculture System. Sustainability 2021, 13, 7154 .
AMA StyleSheng Hang, Jing Li, Xiangbo Xu, Yun Lyu, Yang Li, Huarui Gong, Yan Xu, Zhu Ouyang. An Optimization Scheme of Balancing GHG Emission and Income in Circular Agriculture System. Sustainability. 2021; 13 (13):7154.
Chicago/Turabian StyleSheng Hang; Jing Li; Xiangbo Xu; Yun Lyu; Yang Li; Huarui Gong; Yan Xu; Zhu Ouyang. 2021. "An Optimization Scheme of Balancing GHG Emission and Income in Circular Agriculture System." Sustainability 13, no. 13: 7154.
The application of bioorganic fertilizer affects rhizosphere microbes and further improves soil fertility in farmlands. However, the effects of different fertilizers on rhizosphere bacterial community diversity and structure of winter wheat remains unclear. In this study, we explored the effects of different fertilization treatments (no fertilizer added, CK; nitrogen fertilizer, NF; bioorganic fertilizer, BOF) on the rhizosphere bacterial community of winter wheat in the North China Plain. Rhizosphere soil treated with BOF had a higher Shannon index than that of CK and NF. The relative abundance of the Proteobacteria treated with BOF was significantly higher than that of NF, while the Acidobacteria and Planctomycetes were significantly lower. The redundancy analysis (RDA) and Mantel test showed that soil bacterial communities were significantly correlated with pH, nitrate, available phosphorus (AP), and available potassium (AK). Our findings indicated that BOF increased bacterial diversity and the relative abundance of copiotrophic bacteria in rhizosphere soil, while NF reduced bacterial diversity and increased the relative abundance of oligotrophic bacteria. The increase in copiotrophic bacteria in the rhizosphere of winter wheat could indicate an increase in soil nutrient availability, which might have positive implications for soil fertility and crop production.
Rubiao Liang; Ruixing Hou; Jing Li; Yun Lyu; Sheng Hang; Huarui Gong; Zhu Ouyang. Effects of Different Fertilizers on Rhizosphere Bacterial Communities of Winter Wheat in the North China Plain. Agronomy 2020, 10, 93 .
AMA StyleRubiao Liang, Ruixing Hou, Jing Li, Yun Lyu, Sheng Hang, Huarui Gong, Zhu Ouyang. Effects of Different Fertilizers on Rhizosphere Bacterial Communities of Winter Wheat in the North China Plain. Agronomy. 2020; 10 (1):93.
Chicago/Turabian StyleRubiao Liang; Ruixing Hou; Jing Li; Yun Lyu; Sheng Hang; Huarui Gong; Zhu Ouyang. 2020. "Effects of Different Fertilizers on Rhizosphere Bacterial Communities of Winter Wheat in the North China Plain." Agronomy 10, no. 1: 93.