Novel Slow-Release NPK Biochar-Based Fertilizers with Acidulated Apatite: Evaluation of the Fertilization Value in a Short-Term Experiment

de Morais, Everton Geraldo; Silva, Carlos Alberto

doi:10.1007/s42729-023-01494-y

Cited by 3 publications

(1 citation statement)

References 46 publications

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“…(1) Immediate effect of biochar application: upon application, biochar exhibits an immediate release of unstable P and a slow release of stable P . Approximately 50% of the unstable P, in the form of orthophosphate and pyrophosphate, is rapidly released within the first few hours, while the rest is gradually released over the subsequent days . Plant roots can directly absorb the instantaneously released P, while the stable P undergoes soil biogeochemical processes and serves as a potential P pool in the soil, gradually releasing P over several months to years. − (2) Transformation of biochar-P by soil components: the transformation of biochar-P in soil is influenced by soil composition .…”

Section: Introductionmentioning

confidence: 99%

Phosphorus Footprint in the Whole Biowaste–Biochar–Soil–Plant System: Reservation, Replenishment, and Reception

Nan,

Yang,

Wang

et al. 2023

J. Agric. Food Chem.

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Two phosphorus (P)-rich biowastes, sewage sludge (SS) and bone dreg (BD), were selected to clarify P footprints among biowaste, biochar, soil, and plants by introducing a novel "3R" concept model. Results showed that pyrolysis resulted in P transformation from an unstable-organic amorphous phase to a stable-inorganic crystalline phase with a P retention rate of 70−90% in biochar (P reservation). In soil, SSBC released more P in acid red soil and alkaline yellow soil than BDBC, while the opposite result appeared in neutral paddy soil. The P released from SSBC formed AlPO 4 by combining with Al in soil, whereas P from BDBC transformed into Ca 5 (PO 4 ) 3 F(or Cl) in conjunction with Ca in the soil (P replenishment). Various plants exhibited an uptake of approximately 2−6 times more P from biochar-amended soil than from the original soil (P reception). This study can guide the application of biochar in various soil−plant systems for effective nutrient reclamation. KEYWORDS: phosphorus morphological evolution, sewage sludge and bone dreg biochar, red soil, yellow soil, AlPO 4 , Ca 5 (PO 4 ) 3 F

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Section: Introductionmentioning

confidence: 99%

Phosphorus Footprint in the Whole Biowaste–Biochar–Soil–Plant System: Reservation, Replenishment, and Reception

Nan,

Yang,

Wang

et al. 2023

J. Agric. Food Chem.

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PLS Regression Coupled with FTIR Analysis as a Fast Tool to Assess Properties and Nutrient Pools of Biochar-Based Fertilizers

de Morais,

Silva

2024

Communications in Soil Science and Plant Analysis

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Soil Solution Properties of Tropical Soils and Brachiaria Growth as Affected by Humic Acid Concentration

Valenciano,

de Morais,

Rosa

et al. 2024

Soil Systems

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The soil solution is the compartment where plants uptake nutrients and this phase is in equilibrium with the soil solid phase. Changes in nutrient content and availability in the soil solution can vary among soil types in response to humic acid concentrations, thereby affecting Brachiaria growth. However, there are no studies demonstrating these effects of humic acid application on different soil types and how they affect Brachiaria growth. Thus, the aim of this study was to evaluate the effects of humic acid concentrations (0, 5, 10, 25, and 60 mg kg−1 carbon-humic acid) on Brachiaria brizantha growth and soil solution properties of contrasting tropical soils. Plants were grown for 35 days in greenhouse conditions in pots containing Sandy Entisol, Clayey (Red Oxisol), and Medium Texture (Red-Yellow Oxisol). Soil solution was assessed for pH, electrical conductivity (EC), carbon, and nutrient content. Shoot and root dry matter, as well as macro and micronutrients accumulation in the shoot, were determined. In a soil type-dependent effect, pH, EC, and concentrations of nutrients in solutions changed in response to carbon-humic acid concentration. In the less-buffered soils, Sandy Entisol and Red-Yellow Oxisol, the addition of 30–40 mg kg−1 carbon-humic acid increased root proliferation by 76–89%, while Brachiaria biomass produced in all soils increased by approximately 30%. Levels of carbon in solution were high (>580 mg L−1) and varied depending on the investigated soil type. Though solution carbon contents did not appear to be a driving factor controlling the positive effects of humic acid concentrations on Brachiaria dry matter, there was a direct relationship between other properties and nutrient content in the soil solution, and Brachiaria dry matter production.

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Novel Slow-Release NPK Biochar-Based Fertilizers with Acidulated Apatite: Evaluation of the Fertilization Value in a Short-Term Experiment

Cited by 3 publications

References 46 publications

Phosphorus Footprint in the Whole Biowaste–Biochar–Soil–Plant System: Reservation, Replenishment, and Reception

Phosphorus Footprint in the Whole Biowaste–Biochar–Soil–Plant System: Reservation, Replenishment, and Reception

PLS Regression Coupled with FTIR Analysis as a Fast Tool to Assess Properties and Nutrient Pools of Biochar-Based Fertilizers

Soil Solution Properties of Tropical Soils and Brachiaria Growth as Affected by Humic Acid Concentration

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