Application of biochar-coated urea controlled loss of fertilizer nitrogen and increased nitrogen use efficiency

Jia, Yiman; Hu, Zhengyi; Ba, Yuxin; Qi, Wenfang

doi:10.1186/s40538-020-00205-4

Cited by 44 publications

(40 citation statements)

References 34 publications

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“…(2015) Sawdust biochar Post Laboratory (leaching) experiment Higher water retention capacity Reduce nutrient leaching Gwenzi et al. (2018) Vinasse biochar Post Pot experimente Oilseed rape ( Brassica napus ) Reduced nitrate leaching Increased N concentration Increased NH 3 volatilization Increased Nitrogen use efficiency (NUE) by oilseed rape Jia et al. (2021) Acacia saligna and Jarrah sawdust biochar Post Pot experiment Wheat ( Triticum aestivum L. var.…”

Section: Effects Of Biochar-based Fertilizers On Soil Chemical Propertiesmentioning

confidence: 99%

A scoping review on biochar-based fertilizers: enrichment techniques and agro-environmental application

Ndoung

Figueiredo

Ramos

2021

Heliyon

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Biochar is a carbonized biomass that can be used as a soil amendment. However, the exclusive use of biochar may present some limitations, such as the lack of nutrients. Thus, biochar enrichment techniques have made it possible to obtain biochar-based fertilizers (BCFs), with great potential to improve soil fertility. Nevertheless, there is still a lack of information about the description, advantages, and limitations of the methods used for biochar enrichment. This review provides a comprehensive overview of the production methods of enriched biochar and its performance in agriculture as a soil amendment. Studies demonstrate that the application of BCF is more effective in improving soil properties and crop yields than the exclusive application of pure biochar or other fertilizers. The post-pyrolysis method is the most used technique for enriching biochar. Future studies should focus on understanding the mechanisms of the long-term application of BCFs.

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Section: Effects Of Biochar-based Fertilizers On Soil Chemical Propertiesmentioning

confidence: 99%

A scoping review on biochar-based fertilizers: enrichment techniques and agro-environmental application

Ndoung

Figueiredo

Ramos

2021

Heliyon

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“…The use of biochar-based N fertilizers (BBNFs) has been considered among the most effective strategy for reducing N loss and improving NUE (Liu et al 2019;Chen et al 2019a, b;Dong et al 2020). For example, Jia et al (2021) showed an increase in NUE by about 20% using BBNFs, when compared with urea. However, the preparation of BBNFs and their role in soil improvement and remediation, as well as their impact on plant growth and crop yield, have not been critically reviewed.…”

mentioning

confidence: 99%

A critical review of biochar-based nitrogen fertilizers and their effects on crop production and the environment

Gao

Fang

Zwieten

et al. 2022

Biochar

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Globally, nitrogen (N) fertilizer demand is expected to reach 112 million tonnes to support food production for about 8 billion people. However, more than half of the N fertilizer is lost to the environment with impacts on air, water and soil quality, and biodiversity. Importantly, N loss to the environment contributes to greenhouse gas emissions and climate change. Nevertheless, where N fertilizer application is limited, severe depletion of soil fertility has become a major constraint to sustainable agriculture. To address the issues of low fertilizer N use efficiency (NUE), biochar-based N fertilizers (BBNFs) have been developed to reduce off-site loss and maximize crop N uptake. These products are generally made through physical mixing of biochar and N fertilizer or via coating chemical N fertilizers such as prilled urea with biochar. This review aims to describe the manufacturing processes of BBNFs, and to critically assess the effects of the products on soil properties, crop yield and N loss pathways. Graphical Abstract

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“…Another point of view is that most biochar (especially straw biochar) itself is rich in Ca 2+ , K + , and Mg 2+ ions. With the entrance of biochar into the soil, exchange of these ions with H + and Al 3+ in the soil improved soil PH value [39] and thus promoted ammonia volatilization [17,40,41]. On the contrary, Mandal et al [42] have shown that biochar application at 0.5% and 2% decreases the ammonia volatilization by 36% and 48%, respectively.…”

Section: Discussionmentioning

confidence: 99%

Impact of Biochar Application on Ammonia Volatilization from Paddy Fields under Controlled Irrigation

Ding

Sung-Bum

et al. 2022

Sustainability

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Ammonia volatilization is an important nitrogen loss pathway in the paddy field ecosystem which leads to low nitrogen-utilization efficiency and severe atmospheric pollution. To reveal the influence and the mechanism of biochar application on ammonia volatilization from paddy fields under controlled irrigation, field experiments were conducted in the Taihu Lake Basin in China. The experiment consisted of three levels of biochar application (0, 20, and 40 t·ha−1) and two types of irrigation management (controlled irrigation and flood irrigation). Increasing ammonia volatilization occurred after fertilization. Biochar application reduced the cumulative ammonia volatilization from controlled-irrigation paddy fields, compared with non-biochar treatment. The cumulative ammonia volatilization in controlled-irrigation paddy fields with 40 t·ha−1 biochar application was reduced by 12.27%. The decrease in ammonia volatilization was related to the change in soil physical and soil physical–chemical properties and soil microbial activities. The high biochar application (40 t·ha−1) increased the NH4+-N content in soil (p < 0.01) and soil solution (p <0.05), increased by 64.98% and 19.72%, respectively. The application also increased the soil urease activity (p < 0.01), and high biochar application (40 t·ha−1) increased soil urease activity by 33.70%. Ammonia volatilization from paddy fields was significantly correlated with the nitrogen concentration (p < 0.01) in the soil solution and soil urease activity (p < 0.05). Meanwhile, the abundance of ammonia monooxygenase subunit A (AOA) and ammonia-oxidizing bacteria (AOB) with biochar application under controlled irrigation showed an increasing trend with rice growth. The long-term application of biochar may have a relatively strong potential to inhibit ammonia volatilization. In general, the combined application of controlled irrigation and biochar provides an eco-friendly strategy for reducing farmland N loss and improving paddy field productivity.

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Application of biochar-coated urea controlled loss of fertilizer nitrogen and increased nitrogen use efficiency

Cited by 44 publications

References 34 publications

A scoping review on biochar-based fertilizers: enrichment techniques and agro-environmental application

A scoping review on biochar-based fertilizers: enrichment techniques and agro-environmental application

A critical review of biochar-based nitrogen fertilizers and their effects on crop production and the environment

Impact of Biochar Application on Ammonia Volatilization from Paddy Fields under Controlled Irrigation

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