Assessment of a Biochar-Based Controlled Release Nitrogen Fertilizer Coated with Polylactic Acid

Cen, Zhisheng; Wei, Lin; Muthukumarappan, Kasiviswanathan; Sobhan, Abdus; McDaniel, Rachel

doi:10.1007/s42729-021-00497-x

Cited by 27 publications

(15 citation statements)

References 35 publications

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“…A primary reason for the low NUE is of the lack of synchrony between fertilizer N availability and crop N demand. Cen et al (2021) found that 60% of the N content of BBNFs was retained in the soil.…”

Section: Bbnfs For Nue Improvementmentioning

confidence: 99%

“…Slow-release BBNF formulations are designed to synchronize N fertilizer supply in soil more effectively with plant N demand (Jia et al 2021). By providing this control, the large mineral N pools that can occur following mineral fertilizer application are avoided, thus minimizing N loss pathways including denitrification (Puga et al 2020), leaching (Cen et al 2021) and volatilization (Shi et al 2020). The kinetics and mechanisms of the slow release of N from BBNFs are discussed below.…”

Section: Slow Release Of N From Bbnfsmentioning

confidence: 99%

“…The potential for NH 3 volatilization from BBNFs is dependent upon the production conditions of the BBNFs. In order to determine the volatilization losses associated with the preparation of BBNFs, Cen et al (2021) mixed biochar with dissolved (NH 4 ) 2 SO 4 . They found NH 4 + ions were attached on surfaces and trapped within mesopores and micropores of biochar due to chemisorption of polar and nonpolar compounds, including hydrophobic bonding, π-π electron donor-acceptor interactions resulting from fused aromatic C structures, and weak unconventional H-bonds.…”

Section: N Conversion Process For Soilmentioning

confidence: 99%

“…In this study, BBNF was applied at 2% w/w and much of the additional water holding capacity was attributed to the content of bentonite in the fertilizer formulation. Cen et al (2021) used the water loss (%) of soil samples to represent water retention capacity, and they observed that BBNFs had significantly lower water loss than that of all other samples until day 3. Hydrogel formation through the utilization of polymers in BBNF manufacture has been shown to slow the release rate of N due to the physical barrier of hydrogel (Wen et al 2017).…”

Section: Physical Propertiesmentioning

confidence: 99%

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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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Section: Bbnfs For Nue Improvementmentioning

confidence: 99%

Section: Slow Release Of N From Bbnfsmentioning

confidence: 99%

Section: N Conversion Process For Soilmentioning

confidence: 99%

Section: Physical Propertiesmentioning

confidence: 99%

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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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“…Recently, the possibility of using biochar from different agricultural byproducts to produce controlled-release fertilizers was proposed [4,5]. Furthermore, biochar confers several benefits to agricultural soils, such as an increase in biodiversity and retention of water and nutrients [6,7].…”

Section: Introductionmentioning

confidence: 99%

Phosphorous Determination in Biochar-Based Fertilizers by Spark Discharge-Laser-Induced Breakdown Spectroscopy

et al. 2021

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Biochar-based fertilizers are a new attractive alternative to P supplementation for crops, as they can gradually release the nutrient, avoiding losses and improving soil quality. In this regard, the evaluation of the P amount in biochar-based fertilizers is extremely important for their quality control. Analytical techniques that require sample solubilization are not very efficient for this task, as biochar is difficult to solubilize. Laser-induced breakdown spectroscopy (LIBS) is a promising technique to respond to this demand, as it enables a direct analysis of solid samples, avoiding the complicated process of sample solubilization. In this work, a novel method based on spark discharge (SD) coupled to LIBS was evaluated for P determination in biochar-based fertilizers prepared from three different biomasses. To overcome calibration problems in LIBS analysis, a matrix-matching procedure accomplished by the addition of eucalyptus biochar to calibration standards was used in experiments. This procedure minimized matrix effects and allowed us to achieve a satisfactory accuracy even when applied to similar but different matrices. Furthermore, the developed method is simple, fast, direct, does not generate post-analysis residues and appears appropriate for the quality control of sustainable biochar-based fertilizers and other biochar products.

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Removal of ammonium and phosphates from aqueous solutions by biochar produced from agricultural waste

Pantoja

Sukmana

Beszédes

et al. 2023

J Mater Cycles Waste Manag

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The concern about protecting water quantity and quality is one of the most severe challenges of the twenty-first century since the demand for water resources grows as the population and its needs grow. Additionally, and as expected, most human activities produce wastewater containing undesirable contaminants. On the other hand, the generation of agricultural waste and its inappropriate disposal causes further problems. Current wastewater treatment methods involve a combination of physical and chemical processes, technologies, and operations to remove pollutants from effluents; adsorption is an excellent example of an effective method for wastewater treatment, and biochar is currently one of the most valuable adsorbents. This review focuses on new research about applying biochar produced from agricultural waste as a low-cost and environmentally friendly method for removing ammonium and phosphates from aqueous solutions.

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Assessment of a Biochar-Based Controlled Release Nitrogen Fertilizer Coated with Polylactic Acid

Cited by 27 publications

References 35 publications

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

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

Phosphorous Determination in Biochar-Based Fertilizers by Spark Discharge-Laser-Induced Breakdown Spectroscopy

Removal of ammonium and phosphates from aqueous solutions by biochar produced from agricultural waste

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