Rice-residue biochar influences phosphorus availability in soil with contrasting P status

Mukherjee, Subham; Mavi, Manpreet Singh; Singh, Jagdeep; Singh, Bhupinder

doi:10.1080/03650340.2019.1639153

Cited by 22 publications

(19 citation statements)

References 46 publications

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“…Standard methods of AOAC (2000) were followed for the determination of proximate and chemical composition of biochar, whereas surface area was determined by BET method (Table 2). The FT-IR spectra of biochar produced from rice-residue used in the investigation revealed the presence of various functional groups on its surface as shown and described earlier in Mukherjee et al (2019).…”

Section: Biochar Production and Characteristicssupporting

confidence: 65%

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Differential response of biochar derived from rice-residue waste on phosphorus availability in soils with dissimilar pH

Mukherjee

Mavi

Singh

2019

Int. J. Environ. Sci. Technol.

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Although use of biochar as an amendment for soil C accretion has received immense prominence, its role on alleviating crop P demand remains largely contentious. Therefore, an incubation study for 60 days was conducted to examine the impact of biochar derived from rice-residue waste and Inorganic-P on phosphorous availability in soils with dissimilar pH (acid, neutral and alkali soil). The experimental soils were treated with 0, 20 g kg −1 (w/w) rice-residue biochar with three rates of Inorganic-P (KH 2 PO 4 ) (0, 25, 50 mg kg −1 ). Application of rice-residue biochar alone or in combination with Inorganic-P in the experimental soils resulted in significant increase in P pools possibly due to greater available P content in biochar itself; biochar impelled decrease in soil P sorption capacity and or; biochar-facilitated release of soil organic matter bound P. Among the Inorganic-P fractions, content of Fe-P and Al-P was greater in acid soil, whereas Ca-P content was higher in neutral or alkali soils, irrespective of biochar and Inorganic-P treatments. Furthermore, ability of rice-residue biochar to decrease phospho-monoesterase activity in the experimental soils was indicative of its significance to act as a long-term source of phosphorous in soil. Therefore, amendment of soil with biochar can be used as an important strategy for sustainable management of surplus rice-residue and fulfilling phosphorous demand in differential pH soils of Indo-Gangetic plains.

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Section: Biochar Production and Characteristicssupporting

confidence: 65%

“…(2) various surface functional groups present in biochar (as evident from the FT-IR spectra; phenolic-OH, -C=O, etc., described earlier in Mukherjee et al 2019) may have outcompeted P for the soil sorption sites, rendering added P more available (Jiang et al 2015).…”

Section: Discussionmentioning

confidence: 99%

Differential response of biochar derived from rice-residue waste on phosphorus availability in soils with dissimilar pH

Mukherjee

Mavi

Singh

2019

Int. J. Environ. Sci. Technol.

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“…This may be because char affected the soil environment and the physicochemical properties of the soil [4 has been reported that biochar can promote the hydrolysis reactions of urea fertilizer the transformation of N by affecting urease activity [36]. Moreover, the use of biocha promote phosphatase activity and increase the available phosphorus content in the [41]. These significantly improve the nutrient supply capacity for tomato plants.…”

Section: Effect Of Biochar On Nutrients Uptake (N and P) Of Tomato Plantsmentioning

confidence: 99%

The Response of Nutrient Uptake, Photosynthesis and Yield of Tomato to Biochar Addition under Reduced Nitrogen Application

Guo

Kharbach

et al. 2021

Agronomy

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Tomato is an important economic crop that is widely consumed worldwide. Tomato production is mainly limited by the use of nitrogen fertilizer, sunlight, soil and water conditions. Biochar is one of the soil amendments, and it is recognized as a promising practice for improving crop production in agriculture. The effect of biochar on the photosynthetic traits and tomato yield under reduced nitrogen fertilizer application is still not well understood. The objective of this research is to investigate the influence of biochar application on the photosynthesis and yield of tomato under reduced nitrogen fertilizer application from the perspectives of the nutrient uptake of plants (nitrogen and phosphorus), leaf photosynthetic pigment and leaf gas exchange parameters. Two-year greenhouse experiments containing six biochar levels (0, 10, 30, 50, 70, and 90 t ha−1) and two nitrogen fertilizer application rates (190 and 250 kg ha−1) were conducted. Compared with C0, C50 significantly improved the nitrogen uptake (74–80%) and phosphorus uptake (76–95%) by tomato plants and further enhanced the photosynthetic traits of tomato leaves (net photosynthetic rate (Pn), stomatal conductance (gs), transpiration rate (Tr) and chlorophyll (2–60%), which lead to the highest gains in tomato yield (more than 50%) even when the applied nitrogen fertilizer was significantly reduced (from 250 kg ha−1 to 190 kg ha−1). The photosynthesis rate had a linear correlation with the total nitrogen and phosphorus accumulation and tomato yield. The results will enhance our understandings about the effect of biochar on the photosynthesis and yield of tomato and be of importance for practical agricultural management.

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“…However, incorporation of biochar into soil also alters soil pH, the physical and chemical properties of soil, thus, indirectly affecting the soil P concentration. Rice residual biochar directly increases soil P availability by releasing P from biochar itself, or indirectly increases soil P availability by reducing P adsorption [14]. Orthophosphate and pyrophosphate are the main forms of P in the biochar, such as manure, which can directly increase soil P content [39].…”

Section: Discussionmentioning

confidence: 99%

“…Biochar is produced by the pyrolysis of biomass residue in anoxic and high-temperature environments, which was found to be a better soil improvement material than other amendments [12,13]. Rice-residue biochar has been reported to improve the P availability and P use efficiency of applied or reserve P to meet current P needs [14]. Biochar increases the available Pi component in the soil and maintains high soil P content for at least 2 years after application [15].…”

Section: Introductionmentioning

confidence: 99%

Effect of Rice-Straw Biochar Application on the Acquisition of Rhizosphere Phosphorus in Acidified Paddy Soil

et al. 2022

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A serious acidification trend currently affects paddy soil and soil phosphorus (P) availability has declined in rice production. This study investigated the effect of rice-straw biochar on P availability and the adaptability of rice roots in acidified soil. Rice was grown in rhizoboxes, allowing for the precise sampling of rhizosphere and bulk soil for the sequential extraction of P fractions. Biochar may provide a liming effect and strong nutrient adsorption, leading to soil improvement. The results confirmed that biochar application significantly improved plant growth and P accumulation in shoots by 29% and 75%, respectively. However, the application of washed biochar and equivalent lime only increased shoot biomass and P accumulation by 13.4% and 11.2%, and by 42% and 38%, respectively. Compared with the control, applying biochar increased the plant-available P component contents in rhizosphere and bulk soil. Biochar affected the chemical balance among the different P fractions, increased aluminum-bound phosphate (Al-P) pool, calcium-bound phosphate (Ca-P) pool and decreased the occluded phosphate pool in acidic paddy soil. Biochar amendment significantly improved root growth of and increased the citrate exudation from roots under low P supply, accompanied by the enhanced expression of the anion-transporter-related OsFRDL4 gene and the OsPT1 phosphate transporter. The results showed that biochar application in degraded acidic soils could improve rice potential for P acquisition to increase available P component and maintain high citrate exudation.

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Rice-residue biochar influences phosphorus availability in soil with contrasting P status

Cited by 22 publications

References 46 publications

Differential response of biochar derived from rice-residue waste on phosphorus availability in soils with dissimilar pH

Differential response of biochar derived from rice-residue waste on phosphorus availability in soils with dissimilar pH

The Response of Nutrient Uptake, Photosynthesis and Yield of Tomato to Biochar Addition under Reduced Nitrogen Application

Effect of Rice-Straw Biochar Application on the Acquisition of Rhizosphere Phosphorus in Acidified Paddy Soil

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