Assessment of Greenhouse Gases Emission in Maize-Wheat Cropping System Under Varied N Fertilizer Application Using Cool Farm Tool

Kumar, Rakesh; Karmakar, S.; Minz, Asisan; Singh, J. P.; Kumar, Abhay; Kumar, Arvind

doi:10.3389/fenvs.2021.710108

Cited by 21 publications

(8 citation statements)

References 27 publications

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“…While fertilizer has been observed to increase crop yield, it is also associated with environmental impacts. Several studies have attributed a higher environmental burden to high doses of mineral fertilizers [64,65]. N loss from fertilizers has become a persistent environmental problem [66].…”

Section: Discussionmentioning

confidence: 99%

Environmental Life Cycle Assessment of Silage Maize in Relation to Regenerative Agriculture

Dědina,

Jevič,

Čermák

et al. 2024

Sustainability

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The demand for agricultural products is growing and is resulting in significant environmental impacts due to the overuse of fertilizers (and pesticides in some cases). There is a continued need to find sustainable methods in agricultural systems without harming the environment. Regenerative agriculture can be considered as one of the best methods of sustainable agriculture. The aim of this comparative life cycle assessment (LCA) study was to quantify the environmental impacts associated with the production of silage maize at different doses of fertilizers and pesticides under conventional agriculture and without the use of fertilizers and pesticides under regenerative agriculture. The input data were obtained from the experimental fields and supplemented by background process databases of Ecoinvent, World Food Live Cycle Assessment Database (WFLCD), and the French database AGRIBALYSE. The results of the study were related to six midpoint impact categories: global warming, marine eutrophication, freshwater eutrophication, freshwater ecotoxicity, marine ecotoxicity, and terrestrial ecotoxicity. Although the variant of growing silage maize without the use of fertilizers and pesticides according to the principle of regenerative agriculture showed the lowest burden on the environment, the yields of the cultivated silage maize were 43–55% lower than those of the fertilized variants.

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Section: Discussionmentioning

confidence: 99%

Environmental Life Cycle Assessment of Silage Maize in Relation to Regenerative Agriculture

Dědina,

Jevič,

Čermák

et al. 2024

Sustainability

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“…Among the available tools for estimating GHG emissions at the farm level, the Cool Farm Tool (CFT) has been used in different types of climates and farming conditions [87][88][89][90]. One advantage of CFT is that it requires input data generally known to the farmer, making it useful for decision support at the farm scale and also to inform practices and their impact [38].…”

Section: Limitations Of the Study And Future Researchmentioning

confidence: 99%

Historical Changes in Agricultural Systems and the Current Greenhouse Gas Emissions in Southern Chile

et al. 2023

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Agricultural activities are important contributors to greenhouse gas (GHG) emissions in southern Chile. Three types of agricultural systems coexist within this region: traditional, conventional and agroecological. Historical changes in agricultural practices were identified from bibliographic sources and field surveys of 10 farms of each system type. A similarity analysis between systems was carried out using the survey data, which were also input to the Cool Farm Tool software to estimate GHG emissions of carbon dioxide, methane and nitrous oxide. The main historical changes identified were: (i) replacement of organic inputs by chemical products, (ii) replacement of workforce by agricultural machinery, (iii) decrease in crop diversity and (iv) decrease in total agricultural area. A multivariate analysis showed that agroecological systems are different from the traditional and conventional systems mainly because of the land use and the amount of organic fertiliser applied. However, no significant differences were found in the GHG emissions, which on average were 2999 ± 1521, 3443 ± 2376 and 3746 ± 1837 kg CO2-eq ha−1 year−1 (traditional, conventional and agroecological, respectively). Enteric fermentation was the main source of emissions in all agricultural systems, therefore methane was the most important GHG. Identifying the sources and practices that produce more emissions should help to improve management to reduce GHG emissions.

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“…CF was estimated using the Cool Farm Tool (CFT) v2.5 (https://coolfarmtool.org/ (accessed on 20 September 2023)) [58]. The CFT serves as a GHG calculator designed for product-level calculations, specifically for determining emissions associated with individual products produced on-farm, such as potatoes [59], wheat [60,61], rice [62,63], maize [64], and cacao [65]. Total carbon emissions for crops encompass various factors [66], including:…”

Section: Carbon Footprint (Cf) and Greenhouse Gas Emissions (Ghg) Cal...mentioning

confidence: 99%

Optimizing Sustainability in Malting Barley: A Practical Approach to Nitrogen Management for Enhanced Environmental, Agronomic, and Economic Benefits

Vahamidis,

Stefopoulou,

Kotoulas

2023

Agriculture

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Nitrogen (N) fertilisers used in barley production serve as the primary contributors to total greenhouse gas (GHG) emissions. Consequently, to lower the carbon footprint (CF) and GHG emissions, it is imperative to either reduce N fertiliser rates or enhance grain yield and improve nitrogen use efficiency (NUE). To address this challenge, we combined two strategies related to N: (1) a 34% reduction in the total N rate compared to the control (total N rate 108–110 kg N ha−1), and (2) testing two types of N fertilisers for topdressing against the control (common sulfur urea). These types included (a) a mixture comprising controlled-release fertiliser (CRF) combined with ammonium sulfate nitrate fertiliser in a 40:60 ratio (CRF + Nitro) and (b) ammonium sulfate nitrate (Nitro). Experiments were conducted in two distinct areas of Greece specialising in cereal production, aiming to unveil the effects of these strategies on all sustainability aspects of malting barley production. The results showed that although a 34% reduction in N rate did not result in yield penalties or a decrease in grain size, it did have a negative impact on grain protein content (GPC). CRF + Nitro not only reduced CF by approximately 30% compared to the control but also increased N agronomic efficiency by 51.5% and net profit by 7.1%. Additionally, it was demonstrated that the maximum achievable reduction in total GHG emissions and CF, by excluding N fertilisation from the crop system, ranged from 68.5% to 74.3% for GHG emissions and 53.8% to 67.1% for CF.

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Assessment of Greenhouse Gases Emission in Maize-Wheat Cropping System Under Varied N Fertilizer Application Using Cool Farm Tool

Cited by 21 publications

References 27 publications

Environmental Life Cycle Assessment of Silage Maize in Relation to Regenerative Agriculture

Environmental Life Cycle Assessment of Silage Maize in Relation to Regenerative Agriculture

Historical Changes in Agricultural Systems and the Current Greenhouse Gas Emissions in Southern Chile

Optimizing Sustainability in Malting Barley: A Practical Approach to Nitrogen Management for Enhanced Environmental, Agronomic, and Economic Benefits

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