Biochar-fertilizer interaction modifies N-sorption, enzyme activities and microbial functional abundance regulating nitrogen retention in rhizosphere soil

Ibrahim, Muhammed Mustapha; Tong, Chenxiao; Hu, Kun; Zhou, Biqing; Xing, Shihe; Mao, Yanling

doi:10.1016/j.scitotenv.2020.140065

Cited by 121 publications

(41 citation statements)

References 97 publications

Supporting

Mentioning

Contrasting

Unclassified

Order By: Relevance

“…A significant increase in total N in maize plant parts was observed after biochar application, except in maize leaves and grain (Figure 3), indicating that biochar application is conducive in improving N uptake in plant parts (Figure 4a). These results are consistent with previous studies (Ibrahim et al., 2020), where the application of biochar was shown to increase N uptake in crops. In the present study, majority of total N was stored in maize grain followed closely by leaves (Figure 3).…”

Section: Discussionsupporting

confidence: 93%

Different rates of biochar application change ¹⁵N retention in soil and ¹⁵N utilization by maize

Guan

Dou

et al. 2020

Soil Use and Management

View full text Add to dashboard Cite

Biochar application to soil may impact soil nitrogen (N) dynamics, but the effects on N uptake and utilization by crop remain largely unknown, especially the effects of the rate of biochar application. To investigate the effects of biochar on soil 15 N retention rate and 15 N utilization efficiency (15 NUE) by maize, a six-month 15 N isotope tracer technique combined with in situ pot experiment was conducted in Mollisol. The experiment included four treatments: no biochar applied (CK) and biochar applied at the rates of 12 t ha −1 (P12), 24 t ha −1 (P24) and 48 t ha −1 soil (P48). Compared with CK, biochar application reduced soil bulk density and 15 N loss rate, and significantly improved total N and 15 N retention amount in the 0-30 cm soil depth. The P24 treatment had the largest increase in 15 N retention rate throughout the 0-40 cm depth. After biochar application, the 15 N uptake and 15 NUE were significantly increased in the grain and leaf, which promoted grain yields. Contrary to this, the P48 treatment appeared to lower 15 N uptake and 15 NUE compared with P12 and P24. In conclusion, biochar application improves the potential of the soil to retain N and the improvement in 15 N uptake and utilization are more pronounced in maize leaves and grain. Moreover, biochar application promotes 15 N utilization in maize plant and improves maize yield. However, when biochar application rate is high (i.e. P48 treatment), the 15 N retention by the soil and 15 N utilization by the maize are reduced markedly compared with P12 and P24.

show abstract

Section: Discussionsupporting

confidence: 93%

Different rates of biochar application change ¹⁵N retention in soil and ¹⁵N utilization by maize

Guan

Dou

et al. 2020

Soil Use and Management

View full text Add to dashboard Cite

show abstract

“…This suggested that the sorption of N and P by biochar could be a crucial process (Yu et al, 2020). In other studies, these increases were regulated by the available nutrients of biochar and interaction of biochar with fertilizer (Ibrahim et al, 2020). Additionally, Gao et al (2019) also indicated that biochar when applied alone or in combination with chemical fertilizers could remarkably promote the soil P availability.…”

Section: Effects Of Biochar On Soil Propertiesmentioning

confidence: 87%

“…However, there are relatively few studies on the effect of BCF application on soil microbial community. Biochar-fertilizer interaction significantly increased the abundance and altered community structure of bacteria in the rhizosphere when compared with the no fertilizer control ( Ibrahim et al, 2020 ).…”

Section: Introductionmentioning

confidence: 99%

Different Responses of Soil Bacterial and Fungal Communities to 3 Years of Biochar Amendment in an Alkaline Soybean Soil

Gao

Guo

et al. 2021

Front. Microbiol.

View full text Add to dashboard Cite

Biochar as a soil amendment has been regarded as a promising way to improve soil fertility. However, the response of microbial community after biochar and biochar compound fertilizer (BCF) application has not been thoroughly elucidated. This study evaluated the changes in abundance and composition of bacterial and fungal communities using quantitative real-time PCR (qPCR) and Illumina MiSeq amplicon sequencing. The field experiment ran for 3 years and comprised five treatments: chemical fertilizer as control (CK), straw-returning combined with chemical fertilizer (CS), low biochar application combined with chemical fertilizer (LB), high biochar application combined with chemical fertilizer (HB) and BCF. The results showed that biochar amendment results no changes in the abundance and diversity of bacteria in the bulk and rhizosphere soils. However, the abundance of soil fungi was significantly increased by biochar amendment (LB and HB). LB treatment significantly increased the fungal alpha diversity, while there was no significant change under HB. Furthermore, the dominant bacterial phyla found in the samples were Proteobacteria, Actinobacteria, and Acidobacteria. Biochar addition increased the relative abundance of Actinobacteria in both bulk and rhizosphere soils. The dominant fungal phyla were Ascomycota, Mortierellomycota, and Basidiomycota. The relative abundance of Ascomycota significantly decreased, but Mortierellomycota significantly increased in LB and HB. In addition, redundancy analysis indicated that the changes in bacterial and fungal communities are associated with soil properties such as SOC and TN, which are crucial contributors in regulating the community composition. This study is expected to provide significant theoretical and practical knowledge for the application of biochar in agricultural ecosystem.

show abstract

“…At the end of the first year, authors reported an increase in radish yield for the biochar + poultry manure combined, but not for the biochar alone treatments when compared with the un-amended soil (control). Ibrahim et al [160] reported higher N uptake by plants following application of a biochar-N fertilizer compared to either biochar or N fertilizer alone.…”

Section: Biochar Application In Combination With Organic and Inorganic Amendmentsmentioning

confidence: 99%

Biochar and Its Broad Impacts in Soil Quality and Fertility, Nutrient Leaching and Crop Productivity: A Review

et al. 2021

View full text Add to dashboard Cite

Biochar is gaining significant attention due to its potential for carbon (C) sequestration, improvement of soil health, fertility enhancement, and crop productivity and quality. In this review, we discuss the most common available techniques for biochar production, the main physiochemical properties of biochar, and its effects on soil health, including physical, chemical, and biological parameters of soil quality and fertility, nutrient leaching, salt stress, and crop productivity and quality. In addition, the impacts of biochar addition on salt-affected and heavy metal contaminated soils were also reviewed. An ample body of literature supports the idea that soil amended with biochar has a high potential to increase crop productivity due to the concomitant improvement in soil structure, high nutrient use efficiency (NUE), aeration, porosity, and water-holding capacity (WHC), among other soil amendments. However, the increases in crop productivity in biochar-amended soils are most frequently reported in the coarse-textured and sandy soils compared with the fine-textured and fertile soils. Biochar has a significant effect on soil microbial community composition and abundance. The negative impacts that salt-affected and heavy metal polluted soils have on plant growth and yield and on components of soil quality such as soil aggregation and stability can be ameliorated by the application of biochar. Moreover, most of the positive impacts of biochar application have been observed when biochar was applied with other organic and inorganic amendments and fertilizers. Biochar addition to the soil can decrease the nitrogen (N) leaching and volatilization as well as increase NUE. However, some potential negative effects of biochar on microbial biomass and activity have been reported. There is also evidence that biochar addition can sorb and retain pesticides for long periods of time, which may result in a high weed infestation and control cost.

show abstract

Biochar-fertilizer interaction modifies N-sorption, enzyme activities and microbial functional abundance regulating nitrogen retention in rhizosphere soil

Cited by 121 publications

References 97 publications

Different rates of biochar application change ¹⁵N retention in soil and ¹⁵N utilization by maize

Different rates of biochar application change ¹⁵N retention in soil and ¹⁵N utilization by maize

Different Responses of Soil Bacterial and Fungal Communities to 3 Years of Biochar Amendment in an Alkaline Soybean Soil

Biochar and Its Broad Impacts in Soil Quality and Fertility, Nutrient Leaching and Crop Productivity: A Review

Contact Info

Product

Resources

About

Biochar-fertilizer interaction modifies N-sorption, enzyme activities and microbial functional abundance regulating nitrogen retention in rhizosphere soil

Cited by 121 publications

References 97 publications

Different rates of biochar application change 15N retention in soil and 15N utilization by maize

Different rates of biochar application change 15N retention in soil and 15N utilization by maize

Different Responses of Soil Bacterial and Fungal Communities to 3 Years of Biochar Amendment in an Alkaline Soybean Soil

Biochar and Its Broad Impacts in Soil Quality and Fertility, Nutrient Leaching and Crop Productivity: A Review

Contact Info

Product

Resources

About

Different rates of biochar application change ¹⁵N retention in soil and ¹⁵N utilization by maize

Different rates of biochar application change ¹⁵N retention in soil and ¹⁵N utilization by maize