Regenerative fertilization strategies for climate-smart agriculture: Consequences for greenhouse gas emissions from global drylands

Iqbal, Shahid; Xu, Jianchu; Khan, Sehroon; Worthy, Fiona R.; Khan, Haroon; Nadir, Sadia; Ranjitkar, Sailesh

doi:10.1016/j.jclepro.2023.136650

Cited by 15 publications

(3 citation statements)

References 136 publications

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“…When it comes to STN, the BioSolid factor was found to be the sole factor to significantly increase STN, with a significantly higher stock being observed when it was applied (Figure 3). A simultaneous increase in SOC and STN content as a consequence of the application of organic amendments has been previously documented [36,63,111,112]. This simultaneous improvement would be related to the linear correlation of STN with SOC, especially for the CF treatments [63].…”

Section: Soil Organic Carbon and Soil Total Nitrogen Storagementioning

confidence: 66%

A Fertilisation Strategy Combining Mineral Fertiliser and Biosolid Improves Long-Term Yield and Carbon Storage in a Calcareous Soil

et al. 2023

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At a strategic moment for agricultural soils, which are expected to contribute to climate change mitigation through carbon storage while safely feeding a growing world population, the fertiliser strategies used will be key. In a calcareous soil with extensive rainfed agricultural use and straw removal, different fertiliser strategies were evaluated with the aim of determining their effects on crop yield, nitrogen agronomic efficiency, and the storage of organic carbon and total nitrogen in the soil. Different doses of mineral fertiliser, expressed as kg of mineral nitrogen ha−1 year−1 (0, 60, 120, 180, and 240 nitrogen fertilising units (NFUs)), were applied to plots with and without biosolid amendment. The biosolid, applied at a rate of 40 Mg ha−1 every 3 years for 18 years, complied with national and European regulations to be applied on agricultural soil. The use of combined fertilisation reduced the amount of mineral fertiliser applied between 33 and 67% and the total fertiliser units between 7 and 40%, while maintaining similar yields to the reference mineral fertilisation (180 NFUs). These results could be related to a higher nitrogen agronomic efficiency in the combined fertilisation treatments that do not exceed the total NFUs required by the crop. Combined fertilisation was also an effective fertiliser technique to store total nitrogen and organic carbon in the soil. However, compared to the reference mineral fertilisation (180 NFUs), no significant changes in the soil organic carbon were observed, probably due to the crop management method in which the straw is removed and to higher gas emissions. Our results support the need to assess the efficacy of each agricultural technique at local scales in order not to overestimate or underestimate the potential of each agricultural technique to store soil organic carbon.

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Section: Soil Organic Carbon and Soil Total Nitrogen Storagementioning

confidence: 66%

A Fertilisation Strategy Combining Mineral Fertiliser and Biosolid Improves Long-Term Yield and Carbon Storage in a Calcareous Soil

et al. 2023

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“…The carbon-nitrogen ratio and acid-alkalinity of soil affect the carbon sequestration ability of biochar. Iqbal et al discovered that applying biochar or manure along with fertilizer caused emissions of CO2 or N2O [18]. The emissions of CO2 and N2O were highest for neutral and acidic soils with fertilizer but lowest for alkaline soils after applying biochar.…”

Section: Carbon Sequestration and Utilization In Agriculturementioning

confidence: 99%

Applications of Biochar on Carbon Capture, Utilization and Storage (CCUS)

Lin

2023

E3S Web Conf.

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The impact of global warming and greenhouse gases on life and the environment on Earth is very prominent. Human activities emitting carbon dioxide and other greenhouse gases have caused many kinds of environmental damage such as typhoons and tsunamis, sea level rise, forest fires, crop reduction, etc. Many countries have proposed net zero emissions by the middle of this century. And carbon capture, utilization and storage (CCUS) technology is a necessary and powerful approach to achieve the goal. Biochar is a porous form of carbon processed from organic waste such as animal waste, animal bones, plant roots, wood chips and wheat stalks. Its use in the environment can help increase the capacity of CCUS. In this article, the use of biochar in the environment and its benefits are briefly discussed. The use of biochar in carbon reduction is then explained in depth, with a focus on the promotion of the CCUS process.

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“…Several studies have highlighted that the addition of crop and industrial residues in agricultural soils creates ideal conditions for N2O formation, such as higher soil moisture, easily degradable C, and intense microbial activity Gonzaga et al, 2019;Pinheiro et al, 2019). More recently, studies have indicated that biochar addition in soils is outside this rule, representing a strategy in terms of reducing N2O emissions Iqbal et al, 2023;.…”

Section: General Introductionmentioning

confidence: 99%

Biochar use in agriculture as a nature-based solution: factors influencing N>small<>sub<2>/small<>/sub<O emissions in tropical soils

Gabetto

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Regenerative fertilization strategies for climate-smart agriculture: Consequences for greenhouse gas emissions from global drylands

Cited by 15 publications

References 136 publications

A Fertilisation Strategy Combining Mineral Fertiliser and Biosolid Improves Long-Term Yield and Carbon Storage in a Calcareous Soil

A Fertilisation Strategy Combining Mineral Fertiliser and Biosolid Improves Long-Term Yield and Carbon Storage in a Calcareous Soil

Applications of Biochar on Carbon Capture, Utilization and Storage (CCUS)

Biochar use in agriculture as a nature-based solution: factors influencing N>small<>sub<2>/small<>/sub<O emissions in tropical soils

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