Slow-Release Humic Acid-Based Zinc Fertilizers Improve Growth and Nutrition of Maize and Brachiaria Grass Successively Grown in Oxisols

Morais, Everton Geraldo de; Silva, Carlos Antônio da; Maluf, Henrique José Guimarães Moreira; Guilherme, Luiz Roberto Guimarães

doi:10.1021/acsagscitech.2c00049

Cited by 3 publications

(2 citation statements)

References 60 publications

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“…Two extraction solutions were chosen to evaluate the kinetics of P release; therefore, water and CA were used at 2% concentration as extractant solutions. The fertilizers were incubated with sand in a mini-lysimeter with periodic leaching of incubated BBFs with distilled water [32] or with a 2% CA solution, hereafter defined as a new method to evaluate the dynamics of P in leachates of the BBFs incubated in sandy substrate. In the mini-lysimeter, 200 mg kg −1 P was added to sand based on the P-Total of each BBF.…”

Section: The Kinetics Of P Releasementioning

confidence: 99%

“…Maize top-dressing fertilization was carried out at 14 and 21 days after planting, adding to soil 125 mg N per kg of soil supplied as NH4NO3 (Reagent grade, Synth, Diadema, Brazil). Maize was grown in the two Oxisols for 30 days based on other studies [32]. After the maize cultivation, in each experimental unit, ten seeds of brachiaria were sowed per pot.…”

Section: Bbfs Agronomic Performancementioning

confidence: 99%

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Biochar-Based Phosphate Fertilizers: Synthesis, Properties, Kinetics of P Release and Recommendation for Crops Grown in Oxisols

2023

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The agronomic efficiency of biochar-based fertilizers (BBFs) relies on the synthesis routes, properties, and interaction with the soil–plant system. In our study, BBFs were produced from coffee husk, low-grade acidulated phosphate rock with and without the addition of magnesium (Mg). BBFs were characterized for infrared analysis and the kinetics of phosphorus (P) release in water or citric acid (CA). The agronomic performance of BBFs was tested by growing maize and, in sequence, brachiaria grass in pots filled with two Oxisols with contrasting soil organic matter (SOM) content. Using the same chemical stoichiometric ratio, nitric acid was more effective than hydrochloric and sulfuric acids, creating BBFs with enhanced agronomic performance. The use of Mg in the BBFs synthesis reduced the P released in water. Phosphorus released in CA leachates positively correlated with the P in the shoot of both plants. BBFs produced using nitric acid had higher residual effect on brachiaria grass grown in the Oxisol with the highest SOM. Our outcomes show that the P rate for maize and brachiaria grass should be considered based on P soluble in neutral ammonium citrate plus water in BBFs. BBFs is an alternative to improve the use efficiency of P in Oxisols.

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Section: The Kinetics Of P Releasementioning

confidence: 99%

Section: Bbfs Agronomic Performancementioning

confidence: 99%

Biochar-Based Phosphate Fertilizers: Synthesis, Properties, Kinetics of P Release and Recommendation for Crops Grown in Oxisols

2023

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How Do NPK-Organomineral Fertilizers Affect the Soil Availability and Uptake of Iron, Manganese, Copper, and Zinc by Maize Cultivated in Red and Yellow Oxisols?

de Morais,

Silva,

Maluf

et al. 2023

J Soil Sci Plant Nutr

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Biochar–Nitrogen Composites: Synthesis, Properties, and Use as Fertilizer for Maize

Mota,

Silva

2024

AppliedChem

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Nitrogen (N) is highly reactive and prone to being easily lost into the air and soil water. Biochar–N composites have proven effective in nourishing and improving maize growth. The aim of this study was to synthesize and assess the properties of composites made from biochars (pyrolyzed at 300 °C) derived from chicken manure (N = 3.5%) and leguminous cake (N = 9%) and enriched with ammonium sulfate (AS), urea, and diammonium phosphate (DAP). The biochar pH was adjusted to approximately 6 using sulfuric and phosphoric acids prior to formulating the six tested composites. Maize was cultivated for 50 days under greenhouse conditions, with evaluations of the maize dry matter (DM) and N in the plant shoot. The biochar and composite properties underwent scrutiny for chemical and physicochemical attributes, as well as for soluble N in water and in an HCl solution. Throughout maize cultivation, the release of N as ammonium and nitrate from the composites and pure biochars in the Oxisol solution was successively assessed. Composites formulated with DAP and supplied at a dose of 270 mg kg−1 N yielded the same maize dry matter as composites in which 400 mg kg−1 N was supplied to plants. Regardless of the N source, at the end of maize cultivation, the residual N in the Oxisol was reduced and inadequate for a new cultivation, even in soils treated with urea. Notably, the biochar–N composites, particularly those formulated with DAP, were as effective as urea in nourishing and promoting robust maize growth. In contrast, the maize biomass was lower for plants fertilized with pure biochars, indicating that the N from the carbonized matrices was insufficient for optimal biomass production.

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Slow-Release Humic Acid-Based Zinc Fertilizers Improve Growth and Nutrition of Maize and Brachiaria Grass Successively Grown in Oxisols

Cited by 3 publications

References 60 publications

Biochar-Based Phosphate Fertilizers: Synthesis, Properties, Kinetics of P Release and Recommendation for Crops Grown in Oxisols

Biochar-Based Phosphate Fertilizers: Synthesis, Properties, Kinetics of P Release and Recommendation for Crops Grown in Oxisols

How Do NPK-Organomineral Fertilizers Affect the Soil Availability and Uptake of Iron, Manganese, Copper, and Zinc by Maize Cultivated in Red and Yellow Oxisols?

Biochar–Nitrogen Composites: Synthesis, Properties, and Use as Fertilizer for Maize

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