Effect of soil texture on nitrogen mineralization from organic fertilizers in four common southeastern soils

Cassity‐Duffey, Kate; Cabrera, M. L.; Franklin, D. A.; Gaskin, Julia W.; Kissel, D. E.

doi:10.1002/saj2.20039

Cited by 16 publications

(18 citation statements)

References 35 publications

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“…When NH4 containing fertilizers such as ammonium nitrate (NH4NO3) or ammonium sulfate (NH4SO4) or urea (CH4N2O) are applied to soil during different stages of crop growth [36], they are typically subjected to immediate NH3 volatilization. For instance, upon application, urea undergoes hydrolysis ensuing higher soil pH in the microsites of soil causing transformation of NH4 + to NH3 [37,38]. The greatest amount of NH3 is released through anthropogenic activities [39], which releases around 7.6 million kg ha −1 of NH3 emission is from crop and animal husbandry accounting for more than 90% of the total emission [40].…”

Section: Ammonia Volatilizationmentioning

confidence: 99%

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Nitrogen Losses and Potential Mitigation Strategies for a Sustainable Agroecosystem

et al. 2021

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Nitrogen (N) in the agricultural production system influences many aspects of agroecosystems and several critical ecosystem services widely depend on the N availability in the soil. Cumulative changes in regional ecosystem services may lead to global environmental changes. Thus, the soil N status in agriculture is of critical importance to strategize its most efficient use. Nitrogen is also one of the most susceptible macronutrients to environmental loss, such as ammonia volatilization (NH3), nitrous oxide (N2O) emissions, nitrate leaching (NO3), etc. Any form of N losses from agricultural systems can be major limitations for crop production, soil sustainability, and environmental safeguard. There is a need to focus on mitigation strategies to minimize global N pollution and implement agricultural management practices that encourage regenerative and sustainable agriculture. In this review, we identified the avenues of N loss into the environment caused by current agronomic practices and discussed the potential practices that can be adapted to prevent this N loss in production agriculture. This review also explored the N status in agriculture during the COVID-19 pandemic and the existing knowledge gaps and questions that need to be addressed.

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Section: Ammonia Volatilizationmentioning

confidence: 99%

“…+ to NH 3 [37,38]. The greatest amount of NH 3 is released through anthropogenic activities [39], which releases around 7.6 million kg ha −1 of NH 3 emission is from crop and animal husbandry accounting for more than 90% of the total emission [40].…”

Section: Ammonia Volatilizationmentioning

confidence: 99%

Nitrogen Losses and Potential Mitigation Strategies for a Sustainable Agroecosystem

et al. 2021

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“…This process is influenced by edaphic and climatic factors and in fact it is favored in soils with high pH, but also with acidic or neutral pH in the case of urea [2]. The hydrolyzed urea in soil solution increases the pH and determines the reduction of the ammonium ion into ammonia [33][34][35]. Ninety percent (%) of ammonia emissions (7.6 million kg ha −1 ) come from animal husbandry which derives from the hydrolysis of urea contained in urine and feces [36].…”

Section: Volatilization Of Ammoniamentioning

confidence: 99%

The Fate of Nitrogen from Soil to Plants: Influence of Agricultural Practices in Modern Agriculture

2021

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Nitrogen is an element present on Earth in different forms, such as gaseous in the air, dissolved in water, immobilized in the soil, as well as biologically bound in all living organisms. The transition from one form to another constitutes the nitrogen cycle. Current agricultural systems rely on nitrogen fertilizers, which represent the reactive or biologically available nitrogen in soil. The excessive presence of reactive nitrogen in the environment has become a threat to soil, water, and air. The increasing demands for food in the world are associated with significant increase in nitrogen fertilizers inputs which threatens the environment and living organisms. The quantities of nitrogen used per capita in developed countries exceed those in developing countries. However, developed countries are regulated by restrictions of fertilizers inputs in agriculture, whereas such regulations do not exist in most of the developing countries. The need to resort to alternative and eco-sustainable strategies to mitigate the pollution related to human activities, is increasingly evident. This review aims to highlight the fate of nitrogen through the main agricultural practices in modern agriculture. Special attention was given to rocket (Eruca sativa) which is considered a nitrate hyper-accumulator and was used as a case study in the present review. Finally, some eco-sustainable solutions, useful for mitigating or preventing the excessive release of harmful forms of nitrogen into the environment, were also discussed.

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“…Failure to coordinate the timing of N release from organic fertilizers with the nutritional demands of crops may result in N loss and reduced productivity. Thus, it is important to accurately predict N mineralization rates from organic fertilizers and evaluate what factors may impact mineralization [6][7][8].…”

Section: Introductionmentioning

confidence: 99%

“…Organic fertilizers differ widely in physiochemical characteristics, and N mineralization rates can vary depending on these physiochemical properties. Total particle size, total N concentration, initial inorganic N levels and carbon to nitrogen (C:N) ratio can all affect the N mineralization of organic fertilizers [5][6][7][8][9][10]. In vitro incubation and field-based studies have shown that net N mineralization (Net N min ) among different organic fertilizers can vary between 20% to 93% of the total N applied [5,[11][12][13].…”

Section: Introductionmentioning

confidence: 99%

Influence of Soil Type and Temperature on Nitrogen Mineralization from Organic Fertilizers

de Jesus,

Cassity-Duffey,

Dutta

et al. 2024

Nitrogen

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Organic vegetable producers in Georgia, USA, utilize a range of amendments to supply nitrogen (N) for crop production. However, differences in soil type, fertilizers and environmental conditions can result in variability in N mineralization rates among commonly utilized organic fertilizers in the region. In this study, the effects of temperature on N mineralization from three commercial organic fertilizers [feather meal (FM), pelleted poultry litter (PPL) and a mixed organic fertilizer (MIX)] in two soil types from Georgia, USA (Cecil sandy clay loam and Tifton loamy sand) were evaluated for 120 d. Net N mineralization (Net Nmin) varied with soil type, fertilizer and temperature. After 120 d, Net Nmin from the FM fertilizer ranged between 41% and 77% of total organic N applied, the MIX fertilizer ranged between 26% and 59% and the PPL fertilizer ranged between 0% and 22% across all soil types and temperatures. Incubation at higher temperatures (20 °C and 30 °C) impacted Net Nmin of FM fertilizer in the Tifton series soil. Temperature and soil type had a relatively minor impact on the potentially mineralizable N of the PPL and MIX fertilizers after 120 d of incubation; however, both factors impacted the rate of fertilizer release shortly after application, which could impact the synchronicity of N availability and plant uptake. Temperature-related differences in the mineralization of organic fertilizers may not be large enough to influence a grower’s decisions regarding N fertilizer inputs for vegetable crop production in the two soils. However, organic fertilizer source will likely play a significant role in N availability during the cropping season.

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Effect of soil texture on nitrogen mineralization from organic fertilizers in four common southeastern soils

Abstract: This is the author manuscript accepted for publication and has undergone full peer review but has not been through the copyediting, typesetting, pagination and proofreading process, which may lead to differences between this version and the Version of Record. Please cite this article as

Cited by 16 publications

References 35 publications

Nitrogen Losses and Potential Mitigation Strategies for a Sustainable Agroecosystem

Nitrogen Losses and Potential Mitigation Strategies for a Sustainable Agroecosystem

The Fate of Nitrogen from Soil to Plants: Influence of Agricultural Practices in Modern Agriculture

Influence of Soil Type and Temperature on Nitrogen Mineralization from Organic Fertilizers

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