Conservation tillage increases carbon sequestration of winter wheat-summer maize farmland on Loess Plateau in China

Lü, Xianguo; Lu, Xingneng; Liao, Yuncheng

doi:10.1371/journal.pone.0199846

Cited by 16 publications

(8 citation statements)

References 31 publications

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“…The inclusion of SOC sequestration in the assessment of GWP makes it possible to obtain a considerable reduction in the net impact of GWP associated with crop production [49]. The benefits of increased SOC sequestration in reduced tillage and no-tillage with crop residue returning, so-called conservation tillage, have been highlighted by many authors [50][51][52].…”

Section: Discussionmentioning

confidence: 99%

Assessment of Environmental Burdens of Winter Wheat Production in Different Agrotechnical Systems

Holka

Bieńkowski

2020

Agronomy

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In recent years, an increasing interest has been observed in the reduction in environmental threats posed by the food production chain beginning with agricultural production. The impact of agriculture on the environment varies depending on farming practices. The aim of the study was to assess and compare the environmental effects of the life cycle of winter wheat cultivation in three soil tillage systems: conventional tillage, reduced tillage, and no-tillage. The study was conducted in 2015–2017 on 15 agricultural farms located in the Wielkopolska region, Poland. The “cradle-to-farm gate” life cycle of wheat production was analysed using life cycle assessment methodology. The values of impact category indicators, especially in the case of global warming potential, acidification potential, and eutrophication potential, depended mainly on mineral fertilization. Wheat production generated more adverse emissions with increased nitrogen fertilization both in reduced tillage and no-tillage systems on the studied farms, and consequently resulted in a more negative impact on the environment compared to wheat cultivated in the conventional tillage system. After nitrogen fertilization, use of fossil fuel, and phosphorus and potassium fertilization were the top contributors to environmental impacts of winter wheat production in different tillage systems. The pre-production phase associated with the agricultural means of production was dominant in determining the analysed environmental impacts, except for global warming potential and photochemical ozone creation potential, which depended mainly on the production phase on the farm. The other key environmental impacts that should be considered when it comes to improvements in the life cycle of wheat production were depletion of mineral resources and acidification.

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Section: Discussionmentioning

confidence: 99%

Assessment of Environmental Burdens of Winter Wheat Production in Different Agrotechnical Systems

Holka

Bieńkowski

2020

Agronomy

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“…This may be because green manure has an impact on the soil microenvironment of the no-tillage paddy soil after the stable transformation in the paddy field, and the release of CO 2 is slowed. In addition, plowing green manure in the field releases more CO 2 than mulching in the field [72]. This may be due to the greater disturbance of the soil, improved soil aeration, and enhanced respiration intensity of microorganisms by plowing [73].…”

Section: Co 2 Emissionsmentioning

confidence: 99%

Ecological and Environmental Benefits of Planting Green Manure in Paddy Fields

2022

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Soil fertility management is one of the most important factors affecting crop production. The use of organic manures, including green manure, is an important strategy to maintain and/or improve soil fertility for sustainable crop production. Green manure generally refers to crops that can provide fertilizer sources for agricultural cash crops and improve soil productivity. The application of green manure is a traditional and valuable practice for agroecosystem management, particularly in paddy systems where green manure is rotated with rice. This paper systematically reviews the effects of green manure on soil microenvironments and greenhouse gas emissions, and the role of green manure in the phytoremediation of paddy fields. The paper concludes that green manure can not only affect soil nutrients and the microbial community, but also reduce greenhouse gas emissions and enhance soil remediation to some extent. Moreover, this review provides theoretical guidance on the selection of green manure germplasm and tillage methods for paddy fields of different climates and textures. However, this review only provides a macro-overview of the effects of green manure on soil nutrients, greenhouse gas emissions, and soil remediation in rice paddies based on a large number of previous studies, and does not provide a comprehensive quantitative assessment due to differences in green manure varieties and soil texture. The prospects for quantitative analysis of the ecological and economic effects of the sustainable development of green manure cultivation are discussed.

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“…The combination of reduced tillage and residue incorporation is the practice of conservation tillage. No tillage with straw mulching reported highest net ecosystem carbon balance (NCF) followed by rotatory tillage with straw incorporation and chisel plough with straw incorporation whereas the conventional moldboard ploughing tillage without crop straw reported negative NCF in rainfed winter wheat-summer maize cropping system (Lu et al 2018). Long term No till with straw incorporation reported highest SOC sequestration as it improves the aggregation of macro-aggregate (Rong-Kan et al, 2020).…”

Section: Conservation Tillagementioning

confidence: 99%

Carbon Sequestration as Influenced by Cropping Practices: A Review

Jayara

Pandey

Bhatt

2022

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Global warming has been a serious concern in recent times with regards to declining productivity which will soon emerge as a major challenge for future of agricultural systems. The major contributors to the global warming are the atmospheric carbon dioxide, methane and nitrous oxide. Agriculture has the vast potential for the carbon sequestration. Certain modifications in agricultural practices can efficiently reduce atmospheric carbon dioxide. In this paper the role of conservation tillage, cropping pattern including crop rotation and intercropping, nutrient management, livestock management in agriculture, cover crops in sequestering the atmospheric carbon dioxide has been reviewed along with evidences of the work carried out across the nations.

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Conservation tillage increases carbon sequestration of winter wheat-summer maize farmland on Loess Plateau in China

Cited by 16 publications

References 31 publications

Assessment of Environmental Burdens of Winter Wheat Production in Different Agrotechnical Systems

Assessment of Environmental Burdens of Winter Wheat Production in Different Agrotechnical Systems

Ecological and Environmental Benefits of Planting Green Manure in Paddy Fields

Carbon Sequestration as Influenced by Cropping Practices: A Review

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