Biochar association with phosphate fertilizer and its influence on phosphorus use efficiency by maize

Santos, Sara Ramos Dos; Filho, José Ferreira Lustosa; Vergütz, Leonardus; Melo, Leônidas Carrijo Azevedo

doi:10.1590/1413-7054201943025718

Cited by 19 publications

(20 citation statements)

References 38 publications

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“…To eliminate the interference of phosphorus and other elements in the determination of silicon, organic acids, such as tartaric and oxalic acids, are generally added (Nolla et al, 2010). In the phosphorus analysis, ascorbic acid is used as a reducing agent for the phosphate reaction with molybdate in an acid medium (Santos;Silva;Griebeler, 2014).…”

Section: Resultsmentioning

confidence: 99%

“…According to Santos et al (2019), although the associations of biochars with soluble phosphate fertilizers increases the soil phosphorus availability, does not always provide greater use efficiency of this nutrient by the plants, which implies, according to the authors, that other strategies should be adopted in order to increase the uptake and utilization of phosphorus by crops on soil amendment with biochars. Lowercase letters in the row compare each control treatments with each of the doses of biochar.…”

Section: Resultsmentioning

confidence: 99%

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Phosphorus availability in soil amended with biochar from rice rusk and cattle manure and cultivated with common bean

et al. 2020

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The soils of the Brazilian Savanna are generally acidic and have low availability of nutrients, so the use of alternative inputs to improve their fertility should be investigated. The objectives of this study were to evaluate the potential of biochars from rice husk (BHR) and from bovine manure (BCM) in increasing phosphorus availability and their effects on soil chemical properties and in common beans plants. The experiments were carried out in a completely randomized design, in a 4x2+3 factorial scheme with four replicates. The treatments were four biochar doses (1, 2, 3 and 4% m/v), two biochars (BRH and BCM) and three additional treatments (C1, no liming and no fertilization; C2, addition of Ca and Mg carbonate and NPK fertilizers and; C3, addition of Ca and Mg silicate and NK fertilizers). In the highest doses of BRH there was an increase of 2.7, 5.3 and 2.5 times in the P content extracted by Mehlich 1 and quantified by colorimentria, by Mehlich 1 and quantified by spectroscopy and by ion exchange resin and quantified by spectroscopy, respectively. For the highest doses of BCM, the increases in P content were 51.3, 289.2 and 88.4 times greater than in C1, respectively, according to the methods described for BRH. The biochars increased soil pH, CEC, nutrient content and the growth of bean plants compared to C1, especially BCM. However, the production of dry matter was significantly lower than that obtained in C2.

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Section: Resultsmentioning

confidence: 99%

Section: Resultsmentioning

confidence: 99%

Phosphorus availability in soil amended with biochar from rice rusk and cattle manure and cultivated with common bean

et al. 2020

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“…This fact confers to biochar an evident liming potential [2,27]. This effect, as well as the effects of crop P-use efficiency, has been described in many studies [17,18]. Other studies have suggested that these effects can be mediated by the high adsorption capacity of biochar [15,28].…”

Section: Discussionmentioning

confidence: 83%

“…Thus, in acidic soils, Pi is adsorbed in Al/Fe oxides, and in alkaline soils, Pi is precipitated through Ca bond. Different authors have described the effects of biochar on P bioavailability [15,16], the soil P fraction related to P plant availability [17], the efficiency of P use by plants [18], mycorrhizal colonization [19], and indeed, changes in phosphate crystalline structures [20]. Moreover, this effect could be increased by a large number of carboxylic groups and high surface adsorption area that different biochars normally show.…”

Section: Introductionmentioning

confidence: 99%

“…In this framework, we hypothesized that the different effects of biochar on acidic and alkaline soils might be caused by biochar interactions with mineral nutrients in soil and fertilizers. To investigate this hypothesis, we studied the effects of fertilizers granulated incorporating biochar [18,21] at different concentrations, as well as of biochar used as an amendment, on plant growth and mineral nutrition. These experiments were complemented by studies on both the adsorption-desorption of different elements (Al, Fe, Mn, Mo, and Pi) in biochar and the effects of biochar on mineral elements in soil solution.…”

Section: Introductionmentioning

confidence: 99%

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Biochar-Ca and Biochar-Al/-Fe-Mediated Phosphate Exchange Capacity are Main Drivers of the Different Biochar Effects on Plants in Acidic and Alkaline Soils

et al. 2020

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Because of the low consistency of the results obtained in the field, the use of biochar as a soil amendment is controversial. Thus, in general, in acidic soils, results are positive, while in alkaline soils, they are non-significant or even negative. The results regarding biochar action in acidic soils have been related to a lime-like effect due to its alkaline pH and the high doses normally used. However, the causes of biochar effects in alkaline soils remain unknown. Our objective was to explore the chemical mechanism of biochar interaction in acidic and alkaline soils. We used well-characterized biochar as a component of two complex N and PK granulated fertilizers at two different doses (1% and 5%). These fertilizers were applied to wheat cultivated in pots containing an alkaline soil and grown for 60 days. No effect was shown for the N-biochar fertilizer application. However, the PK-biochar fertilizer application caused a decrease in crop yield. In addition, the adsorption isotherms of Al, Fe, Mo, Mn, and Phosphate (Pi) in biochar were also studied. The results showed that Fe and Al were rapidly adsorbed in biochar, while Pi was only adsorbed on the Fe-, Al-biochar complex. Desorption experiments showed that P and Fe/Al were not desorbed from the P-Fe/Al-biochar complex by water or the Olsen reagent, while partial desorption was observed when HCl 0.1 M was used. This blockage of Fe/Al and P through Fe/Al bridges in biochar could partially explain the negative effects in alkaline soils. After these studies, soil solution sorption experiments were carried out in both acidic and alkaline soils and were complemented with a greenhouse trial using tomato plants. The results showed that biochar enhanced foliar Ca and N content, as well as growth in acidic soil only, and the possible mechanism of the failure in alkaline soils.

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A data synthesis on the biochar properties and implications for air, soil, and water quality in Brazil

Pôggere

Santana

Barbosa

et al. 2022

Environmental Quality Mgmt

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Biochar has been intensively researched worldwide. In Brazil, there is a variety of feedstock production that can be turned into soil amendments of high performance through biochar conversion, especially solid wastes. However, advances in biochar research in Brazil have not been systematically evaluated to indicate possible gaps and suggest future research for eco-friendly applications. Thus, in this work we evaluated biochar properties and effects on air, water, and soil quality based on data gathered from researches performed in Brazil. Biochar has been mainly evaluated as soil conditioner (37%), material characterization (17%), water treatment (12%), and greenhouse gases emissions (9%). Based on the data synthesis of 68 feedstocks used for biochar production, we observed that the pyrolysis temperature profoundly affects biochar properties. Meta-analysis indicated benefits of biochar addition to soils for chemical, physical, microbiological and biochemical attributes that have resulted in increases in root growth (+30%), and plant shoots (+45%). Pyrolysis temperature and feedstock are key choices to design biochar properties aiming to retain dyes, aromatic hydrocarbon, pesticides, and metals in water and wastewater treatment. It was also observed an increase in CO 2 and a decrease in N 2 O emissions after biochar application to soils in short-term experiments. Although there is a growing interest in the development of electrochemical sensors and biochar-based fertilizers, technological applications of biochar are still incipient in Brazil. Future research should prioritize long-term and mechanistically evaluations of biochar under field conditions and the development of eco-friendly technological applications.

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Biochar association with phosphate fertilizer and its influence on phosphorus use efficiency by maize

Cited by 19 publications

References 38 publications

Phosphorus availability in soil amended with biochar from rice rusk and cattle manure and cultivated with common bean

Phosphorus availability in soil amended with biochar from rice rusk and cattle manure and cultivated with common bean

Biochar-Ca and Biochar-Al/-Fe-Mediated Phosphate Exchange Capacity are Main Drivers of the Different Biochar Effects on Plants in Acidic and Alkaline Soils

A data synthesis on the biochar properties and implications for air, soil, and water quality in Brazil

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