Can biochar provide ammonium and nitrate to poor soils?: Soil column incubation

Cao, Ting; Meng, Jun; Liang, Hao; Yang, Xu; Chen, Wenfu

doi:10.4067/s0718-95162017005000020

Cited by 15 publications

(13 citation statements)

References 19 publications

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“…Herein, increases in AEN and REN in rice and wheat were recorded with the application of RSB and N (Table 7), which can be ascribed to increases in soil N supply and reduction in N losses. Earlier studies by Cao et al (2017) and Yao et al (2012) showed that incorporation of biochar in a sandy soil increased retention of ammonium and nitrate, thereby reducing N loss by leaching and reducing N 2 O emissions (Wu et al, 2013). Accordingly, Zhang et al (2015) reported that combined application of biochar and N fertilizer increased the AEN and REN in rice over no biochar.…”

Section: Crop Yield and N Use Efficiency As Affected By Biocharmentioning

confidence: 97%

Rice straw biochar improves soil fertility, growth, and yield of rice–wheat system on a sandy loam soil

et al. 2019

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Biochar has received attention due to its potential for mitigating climate change through carbon sequestration in soil and improving soil quality and crop productivity. This study evaluated the effects of rice straw biochar (RSB) and rice husk ash (RHA) each applied at 5 Mg ha−1 and four N levels (0, 40, 80, and 120 kg ha−1) on soil fertility, growth, and yield of rice and wheat for three consecutive rice–wheat rotations. RSB significantly increased electrical conductivity, dehydrogenase activity, and P and K contents when compared to control (no amendment) up to 7.5 cm soil depth. Both RSB and RHA did not influence shoot N concentration in wheat plant but significantly increased P and K concentrations at 60 days after sowing. Grain yields of both rice and wheat were significantly higher in RSB as compared to control (no amendment) and RHA treatments. While the highest grain yields of rice and wheat were observed at 120 kg N ha−1 in RHA and no biochar-treated plots, a significant increase in grain yields was observed at 80 kg N ha−1 in RSB treatment, thereby saving 40 kg N ha−1 in each crop. Both agronomic and recovery N efficiencies in rice and wheat were significantly higher in RSB-amended soil compared to control. Significant positive correlations were observed between soil N, P, and K concentrations and total N, P, and K concentrations in aboveground biomass of wheat at 60 days after sowing. This study showed the potential benefits of applying RSB for improving soil fertility and yields of rice and wheat in a rice–wheat system.

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Section: Crop Yield and N Use Efficiency As Affected By Biocharmentioning

confidence: 97%

Rice straw biochar improves soil fertility, growth, and yield of rice–wheat system on a sandy loam soil

et al. 2019

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“…2), and its high CEC (Table 3) may contribute to the increase of soil CEC (Naeem et al 2017). Generally, biochar is a porous material with a high surface area and thus has a high sorption capacity, which may enhance soil CEC (Laird et al 2010;Cao et al 2017). In addition, mineralization of biochar can increase the CEC of the soil by releasing charged low-molecular weight humiclike substances (Mete et al 2015).…”

Section: Soil Ph and Cecmentioning

confidence: 99%

Chemical Fractions and Availability of Zn in a Calcareous Soil in Response to Biochar Amendments

Karimi

Moezzi

Chorom

et al. 2019

J Soil Sci Plant Nutr

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Availability of Zinc (Zn) is very low in calcareous soils and hence, an amendment must be used to increase Zn availability to plants. The main objective of this study was to assess the changes in chemical fractions and availability of Zn in a calcareous soil amended with corn residue biochar. Three corn residue biochars were produced at 200 (B200), 350 (B350), and 500°C (B500) and applied at 1 and 2% w/w to a calcareous soil with low organic C content (4.1 g kg −1) and high pH (7.7). The mixtures were incubated for 90 days in the laboratory (25 ± 2°C and 80% of soil field capacity). The application of biochar increased soil total organic carbon (TOC) (1.81-to 3.27-fold), cation exchange capacity (CEC) (1.03-to 1.14-fold) and Zn bound to organic matter (1.34-to 2.15-fold). Relative to untreated soil, the B200 biochar (1) decreased soil pH (0.22-0.30 unit); (2) increased dissolved organic carbon (DOC) (1.34-to 1.59-fold), microbial biomass carbon (MBC) (1.56-to 1.67-fold) and DTPA-extractable Zn (1.32-to 1.42-fold); and (3) maximized Zn content in 3 out of 5 soil pools, i.e., exchangeable Zn; organically bounded Zn; and Fe/ Mn-oxide-bounded Zn. In contrast, the B500 biochar (1) increased soil pH; (2) did not affect DOC or DTPA-extractable Zn quantities in soil extracts; and (3) maximized Zn content in carbonate-Zn and residual-Zn soil fractions. The B350 biochar (1) did not affect soil DOC and DTPA-extractable Zn and (2) slightly increased carbonate-Zn fractions. The effects of biochar addition on soil properties and chemical fractions of Zn were greater at 2% than 1% application rates. Results suggest that corn residue biochar produced at 200°C and applied to calcareous soils at a 2% rate may effectively increase Zn availability by increasing the amount of Zn held in the more labile Zn soil fractions.

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“…Hence, the biochar can be used as a substitute for phosphate fertilizers when reclaiming calcareous sandy soils because of its high content of P (0.6 to 3.2 g kg -1 ) that amount depends on the type of plant residues (Shenbagavalli and Mahimairaja, 2012). The incorporation of biochar with sandy soils results an increase in ammonium and nitrate retention and a reduction of nitrogen loss by leaching (Yao et al, 2012;Cao et al, 2017), and N 2 O emissions (Wu et al, 2013). So, it enhances the nitrogen use efficiency of plants grown in a sandy soil (Van Zwieten et al, 2010).…”

Section: Introductionmentioning

confidence: 99%

Biochar effects on nitrogen and phosphorus use efficiencies of zucchini plants grown in a calcareous sandy soil

Amin

Eissa

2017

J. Soil Sci. Plant Nutr.

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Biochar (B) application to sandy soils improves its productivity and mitigates climate change. A pot experiment was conducted to investigate the potential effects of maize stalks biochar applied to a zucchini (Cucurbita pepo L. var. Hybrid fadwa) grown on a calcareous sandy soil. Plastic pots were filed with three kilograms of the stud- . The pots were planted with zucchini plants and designed in a complete randomized design with three replications. Amending the soil with the biochar significantly increased the soil organic matter, fresh fruit yield, nitrogen use effiency (NUE) and agronomic efficiency of applied nitrogen (AE N ) of zucchini plants. Biochar additions improved the fresh fruits by 26.7, 55, and 195.0% for B 1 , B 2 and B 3 treatments respectively, over the control. The NUE of the plants increased owing to the application of biochar to the soil from 69.2 mg fruit/mg N at the control treatment to 77.1, 84.3 and 131.4 mg fruit/mg N for B 1 , B 2 and B 3 treatments, respectively. So, it is recommended to apply biochar as an amendment to the calcareous sandy soil in order to improve its fertility.

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Can biochar provide ammonium and nitrate to poor soils?: Soil column incubation

Cited by 15 publications

References 19 publications

Rice straw biochar improves soil fertility, growth, and yield of rice–wheat system on a sandy loam soil

Rice straw biochar improves soil fertility, growth, and yield of rice–wheat system on a sandy loam soil

Chemical Fractions and Availability of Zn in a Calcareous Soil in Response to Biochar Amendments

Biochar effects on nitrogen and phosphorus use efficiencies of zucchini plants grown in a calcareous sandy soil

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