Effect of biochar incorporation on phosphorus supplementation and availability in soil: a review

Shi, Yang-xiao-xiao; Yu, Yuanchun; Chang, Ed‐Haun; Wang, Ruhai; Hong, Zhineng; Cui, Jiaqi; Zhang, Feng; Jiang, Jun; Xu, Ren-kou

doi:10.1007/s11368-022-03359-w

Cited by 13 publications

(1 citation statement)

References 112 publications

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“…This observation may be attributed to two possible factors. Biochar derived from biomass (especially livestock manure and urban sewage) is rich in nutrients, so it can directly increase the level of available phosphorus in soil ( Shi et al., 2023 ). The phosphorus in cow dung, such as in phospholipids and phytic acid, exists mainly in organic form, making it difficult for crops to absorb and utilize it.…”

Section: Discussionmentioning

confidence: 99%

Differential effects of cow dung and its biochar on Populus euphratica soil phosphorus effectiveness, bacterial community diversity and functional genes for phosphorus conversion

Fan,

Lv,

Chen

et al. 2023

Front. Plant Sci.

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IntroductionContinuous monoculture leading to soil nutrient depletion may cause a decline in plantation productivity. Cow dung is typically used as a cheap renewable resource to improve soil nutrient status. In this study, our purpose was to compare the effects of different cow dung return methods (direct return and carbonization return) on soil microbial communities and phosphorus availability in the root zone (rhizosphere soil and non-rhizosphere soil) of P.euphratica seedlings in forest gardens and to explore possible chemical and microbial mechanisms.MethodsField experiments were conducted. Two-year-old P.euphratica seedlings were planted in the soil together with 7.5 t hm-2 of cow dung and biochar made from the same amount of cow dung.ResultsOur findings indicated that the available phosphorus content in soil subjected to biochar treatment was considerably greater than that directly treated with cow dung, leading to an increase in the phosphorus level of both aboveground and underground components of P.euphratica seedlings. The content of Olsen-P in rhizosphere and non-rhizosphere soil increased by 134% and 110%, respectively.This was primarily a result of the direct and indirect impact of biochar on soil characteristics. Biochar increased the biodiversity of rhizosphere and non-rhizosphere soil bacteria compared with the direct return of cow dung. The Shannon diversity index of carbonized cow manure returning to field is 1.11 times and 1.10 times of that of direct cow manure returning to field and control, and the Chao1 diversity index is 1.20 times and 1.15 times of that of direct cow manure returning to field and control.Compared to the direct addition of cow dung, the addition of biochar increased the copy number of the phosphorus functional genes phoC and pqqc in the rhizosphere soil. In the biochar treatment, the abundance of the phosphate-solubilizing bacteria Sphingomonas and Lactobacillus was significantly higher than that in the other treatments, it is relative abundance was 4.83% and 2.62%, respectively, which indirectly improved soil phosphorus availability.DiscussionThe results indicated that different cow dung return methods may exert different effects on phosphorus availability in rhizosphere and non-rhizosphere soils via chemical and microbial pathways. These findings indicated that, compared to the direct return of cow dung, biochar return may exert a more significant impact on the availability of phosphorus in both rhizosphere and non-rhizosphere soils, as well as on the growth of P.euphratica seedlings and the microbial community.

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Section: Discussionmentioning

confidence: 99%

Differential effects of cow dung and its biochar on Populus euphratica soil phosphorus effectiveness, bacterial community diversity and functional genes for phosphorus conversion

Fan,

Lv,

Chen

et al. 2023

Front. Plant Sci.

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Woodchips biochar versus bone char in a one‐year model soil incubation experiment: the importance of soil/char pH alteration on nutrient availability in soil

Száková,

Stiborová,

Mercl

et al. 2023

J of Chemical Tech & Biotech

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BACKGROUNDBiochars have become one of the most intensively and extensively investigated soil amendment materials in terms of their production, application and fate in the soil because of benefits such as increased soil quality and fertility. Biochar from woodchips and bone char from meat bone waste from a poultry slaughterhouse were prepared at 300 and 500 °C and then thoroughly mixed with two soils (cambisol and luvisol) that differed in their physicochemical parameters in ratios of 2% and 5% (w/w).RESULTSThe impact of bone and biochar amendments on nutrient availability was assessed during a one‐year model laboratory experiment. The feedstock origin and pyrolysis temperature affected the prepared materials’ physical properties and nutrient (Ca, Cu, K, Mg, Mn, P, S, Zn) availability. With increasing temperature, the structure of woodchip biochar changed from macroporous to microporous, and bone char changed from non‐porous to mesoporous. However, when mixed with soil, the biochar‐derived change in soil pH was revealed to be the most crucial parameter affecting soil nutrient mobility. Of all the tested elements, Only Cu, Fe and Zn were unaffected by biochar addition. Furthermore, temporal changes in element mobility during incubation were also elucidated.CONCLUSIONThe changes over time in element mobility indicated that soil properties were more important than bone and biochar characteristics. © 2023 The Authors. Journal of Chemical Technology and Biotechnology published by John Wiley & Sons Ltd on behalf of Society of Chemical Industry (SCI).

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Differences in plant availability of phosphorus and potassium in pelletized and granulated biochar for an Andisol

Kameyama,

Kubota,

Iwata

2024

Biomass Conv. Bioref.

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Biochar will be broken into tiny pieces for processes of production, transportation, and application, which causes dust emissions for those processes. Particulate matter (PM) released from biochar may have negative effects on human health and increase the atmospheric burden of shortwave absorbing black carbon aerosols. Pelletizing feedstock before the thermochemical conversion is expected to reduce the emission of PM in the processing and post-processing phases. Effects of application of pelletized biochar, produced from broiler manure at different pyrolysis temperatures, into an Andisol on soil physicochemical properties and crop yields have been investigated in this study. Effects of pelletizing and pyrolysis temperatures (400, 600, and 800 °C) on dissolution properties and soil physicochemical properties were completely different between phosphorus and potassium. Pelletized broiler manure–derived biochar can be used as fast-release potassium fertilizer regardless of pyrolysis temperatures. In contrast, the extraction pattern of phosphorus contained in the biochar significantly differed by pelletizing and pyrolysis temperatures. Plant dry yields and phosphorus uptakes in soils amended with granulated broiler manure-derived biochar were significantly higher than those in soils amended with pelletized broiler manure-derived biochar (e.g., 3.4 times larger in 800 °C). This result suggests that the breakdown of pelletized biochar into granulated biochar could improve interaction between phosphorus contained in biochar and roots. Pelletized biochar will be transformed into granulated biochar through the freeze–thaw cycle, dry–wet cycle, and rotary tillage over the long term. Therefore, pelletized biochar derived from broiler manure at higher pyrolysis temperatures can be novel phosphorus-supplying amendments over the long term. Graphical abstract

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Effect of biochar incorporation on phosphorus supplementation and availability in soil: a review

Cited by 13 publications

References 112 publications

Differential effects of cow dung and its biochar on Populus euphratica soil phosphorus effectiveness, bacterial community diversity and functional genes for phosphorus conversion

Differential effects of cow dung and its biochar on Populus euphratica soil phosphorus effectiveness, bacterial community diversity and functional genes for phosphorus conversion

Woodchips biochar versus bone char in a one‐year model soil incubation experiment: the importance of soil/char pH alteration on nutrient availability in soil

Differences in plant availability of phosphorus and potassium in pelletized and granulated biochar for an Andisol

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