Identifying N fertilizer management strategies to reduce ammonia volatilization: Towards a site-specific approach

Mencaroni, Marta; Ferro, Nicola Dal; Furlanetto, Jacopo; Longo, Matteo; Lazzaro, Barbara; Sartori, Luigi; Grant, Brian; Smith, Ward; Morari, Francesco

doi:10.1016/j.jenvman.2020.111445

Cited by 31 publications

(19 citation statements)

References 34 publications

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“…This was accompanied by a gradual NH 3 loss decline. Our findings contrasted with that of Mencaroni et al [41] who reported that mixing organic and mineral fertilizer reduces NH 3 volatilization. The high pH of the biochar used in our study might have caused a favorable condition for NH 3 volatilization and this observation is consistent with that of Sha et al [12], who reported that soil NH 3 volatilization depends on the characteristics of the input material.…”

Section: Discussioncontrasting

confidence: 99%

“…Soil pH is generally the main factor affecting NH 3 emissions [41]. The biochar in T3 did not significantly change the soil pH after on the 10th day of the ammonia volatilization experiment and this was possibly because of the higher surface area of the biochar without tableting and the counteracting effects of biochar and fertilizer on soil pH [42].…”

Section: Discussionmentioning

confidence: 94%

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Nutrient Release and Ammonia Volatilization from Biochar-Blended Fertilizer with and without Densification

et al. 2021

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Blending fertilizer with biochar followed by densification to make it into a tablet can enhance the adsorption of fertilizer on the biochar surface and reduce the nutrient loss during handling. However, the nutrient release and ammonia volatilization from biochar-blended fertilizer with and without densification are not well understood. The objectives of this study were to determine the nutrient release and ammonia volatilization from an acid soil applied with biochar-blended NPK fertilizer with and without densification. The nutrient release of biochar-blended NPK was determined using water incubation for 30 days, whereas daily loss of ammonia was measured using a closed dynamic air flow system for 10 days. The densified biochar-blended NPK caused stronger physical binding of the nutrients within the tablet in addition to stronger chemical bondings between the nutrients with the biochar’s functional groups. As a result, nutrient release in the water incubation from the biochar-blended NPK fertilizer tablet was slower. However, blending the biochar with the NPK fertilizer increased soil ammonia volatilization relative to the NPK fertilizer alone. This demonstrates that the biochar-blended fertilizer tablet has the potential to serve as a slow release fertilizer for crop cultivation.

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Section: Discussioncontrasting

confidence: 99%

Section: Discussionmentioning

confidence: 94%

Nutrient Release and Ammonia Volatilization from Biochar-Blended Fertilizer with and without Densification

et al. 2021

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“…Ammonia nitrogen emissions were the highest under low irrigation. Therefore, more studies on different soils, climates, nitrogen fertilizer types and water statuses are needed to understand the in uencing factors of ammonia volatilization in farmland in different regions and to take more effective measures to reduce ammonia volatilization (Mencaroni et al, 2021).…”

Section: ; Guo Et Al 2021)mentioning

confidence: 99%

Effects of biochar amount on NH3 volatilization in summer maize fields under different irrigation conditions

Xue

Pang

Cong

et al. 2022

Preprint

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NH3 from farmland has serious impacts on human health and ecosystems. To reduce NH3 volatilization and increase yield, biochar is applied. A field experiment was carried out to study NH3 volatilization loss, and summer maize yield was analysed under different irrigation schemes with different amounts of biochar. Two irrigation schemes, I1 (67.5 mm) and I2 (121.5 mm), were set up according to the irrigation habits of local producers. Three biochar application rates were selected: C1 (0 t ha-1), C2 (20 t ha-1) and C3 (40 t ha-1). The relationship between NH3 volatilization and influencing factors, including NH4+-N concentration, NO3--N concentration, pH in the 0~20 cm soil layer and temperature, was investigated. The results showed that the yield significantly (p<0.05) increased by 17.27%~46.67% after applying biochar. Compared with C1, NH3 volatilization significantly (p<0.05) decreased by 28.98%~31.63% in C2, while that in C3 significantly (p<0.05) increased by 22.64%~73.87%. The effects of biochar on NH3 volatilization were consistent under different irrigation conditions. Compared to I1, I2 not only increased the yield of summer corn but also increased the risk of NH3 volatilization and leaching. NH3 volatilization was positively correlated with NH4+-N concentration, pH and temperature, but it was negatively correlated with NO3--N concentration. These results suggest that the optimal application amount of biochar for summer maize ranges from 14.59 t ha-1 to 17.19 t ha-1 in the study area.

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“…In this context, the use of urea granules (0.7 g), buried deep in the soil, was used and this technique was useful in terms of rice yield, and in reducing nitrogen losses [155,156]. Similarly, the deep burying of mineral and organic fertilizers attenuated the volatilization of ammonia in corn crops, compared to the superficial spreading of fertilizers [157].…”

Section: Useful Approaches To Mitigate Nitrogen Lossesmentioning

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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Identifying N fertilizer management strategies to reduce ammonia volatilization: Towards a site-specific approach

Cited by 31 publications

References 34 publications

Nutrient Release and Ammonia Volatilization from Biochar-Blended Fertilizer with and without Densification

Nutrient Release and Ammonia Volatilization from Biochar-Blended Fertilizer with and without Densification

Effects of biochar amount on NH3 volatilization in summer maize fields under different irrigation conditions

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

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