Organic nutrient sources and biochar technology on microbial biomass carbon and soil enzyme activity in maize-black gram cropping system

Das, Shaon Kumar; Ghosh, Gautam; Avasthe, R. K.; Choudhury, B. U.; Mishra, Vinay Kumar; Kundu, Manjari; Roy, Aniruddha; Mondal, Tilak; Lama, Achal; Dhakre, D. S.

doi:10.1007/s13399-021-01625-4

Cited by 21 publications

(6 citation statements)

References 43 publications

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“…Contrary to previous studies (Das et al., 2021; Hammerschmiedt et al., 2022), P‐ and S‐related enzymes were mostly not affected by the amendments application. This indicates that the application of C‐rich amendments did not change, positively or negatively, the activity of microorganisms involved in P and only biochar decreased S cycling.…”

Section: Discussioncontrasting

confidence: 99%

Combined biochar and manure addition to an agricultural soil benefits fertility, microbial activity, and mitigates manure‐induced CO₂ emissions

Lebrun,

Zahid,

Bednik

et al. 2023

Soil Use and Management

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The importance of blending biochar into manure prior to its application as a soil amendment was investigated by this laboratory and field study, hypothesizing an (i) increase in soil fertility; (ii) improvement in microbial activity; (iii) reduction in manure‐induced CO2 emissions after combining amendments. Biochar was mixed with manure (50:50 V/V) and aged in field conditions for 6 months whereafter pristine biochar, manure, and manured biochar (50:50 V/V) were incorporated into an agricultural drought‐prone Regosol. All treatments and soil mixtures were incubated, with laboratory measurements of CO2 emissions taken using a coupled column respirometer set up, while nutrient availabilities as well as enzymatic activities were also tested. Demonstrable benefits of the biochar when blended to manure were exemplified in reduced CO2 emissions, by 60% compared with manure alone, and improved C and N acquisition by microorganisms. When applied to soil, blended biochar manure did not enhance CO2 emissions, but did significantly improve soil fertility by the avoidance of leaching of non‐plant consumed nutrients from the soil (e.g. NO3− by 58%). A significant increase in functional diversity indices in the presence of manured biochar highlights the added value of the blended approach. Field application yielded reduced effects; manure induced a higher carbon and nitrogen mineralization (thus potentially higher C and N emissions via CO2, CH4 and N2O) as well as a higher microbial functional diversity. Further studies should verify the effects observed here in a range of soil types and climates.

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Section: Discussioncontrasting

confidence: 99%

Combined biochar and manure addition to an agricultural soil benefits fertility, microbial activity, and mitigates manure‐induced CO₂ emissions

Lebrun,

Zahid,

Bednik

et al. 2023

Soil Use and Management

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“…The application of BC has been reported to increase the activity of urease, alkaline phosphatase, catalase, and phosphatase) with a maximum increase (45-502%) seen in the activity of catalase (CAT: Yao et al, 2021). However, Das et al (2021) found that increasing BC application decreased the activity of acid phosphatase and these differences could be due to differences in soil characteristics, crop species, and soil properties (Geng et al, 2022). Some other authors also reported that BC application showed better results in increasing the enzymatic activity owing to the conversion of acid soils into alkaline soils following BC application (Zhang J. et al, 2019).…”

Section: Biochar Improves Soil Enzymatic Activities To Counter Soil A...mentioning

confidence: 99%

Section: Introductionmentioning

confidence: 99%

“…In another study, cow dung BC improved the acidic soils as compared to BC made from peanut shells ( Geng et al., 2022 ). Further, the increase in pyrolysis temperature also increased the concentration of K, Na, Ca, Mg, and other mineral elements ( Das et al., 2021 ) and it also increases the acidification ability of BC. BC application further increased the concentration of P, K, and Mg concentrations which in turn improved the above-ground biomass in acidic soils.…”

Section: Introductionmentioning

confidence: 99%

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Soil acidification and salinity: the importance of biochar application to agricultural soils

Huang,

Li,

et al. 2023

Front. Plant Sci.

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Soil acidity is a serious problem in agricultural lands as it directly affects the soil, crop production, and human health. Soil acidification in agricultural lands occurs due to the release of protons (H+) from the transforming reactions of various carbon, nitrogen, and sulfur-containing compounds. The use of biochar (BC) has emerged as an excellent tool to manage soil acidity owing to its alkaline nature and its appreciable ability to improve the soil’s physical, chemical, and biological properties. The application of BC to acidic soils improves soil pH, soil organic matter (SOM), cation exchange capacity (CEC), nutrient uptake, microbial activity and diversity, and enzyme activities which mitigate the adverse impacts of acidity on plants. Further, BC application also reduce the concentration of H+ and Al3+ ions and other toxic metals which mitigate the soil acidity and supports plant growth. Similarly, soil salinity (SS) is also a serious concern across the globe and it has a direct impact on global production and food security. Due to its appreciable liming potential BC is also an important amendment to mitigate the adverse impacts of SS. The addition of BC to saline soils improves nutrient homeostasis, nutrient uptake, SOM, CEC, soil microbial activity, enzymatic activity, and water uptake and reduces the accumulation of toxic ions sodium (Na+ and chloride (Cl-). All these BC-mediated changes support plant growth by improving antioxidant activity, photosynthesis efficiency, stomata working, and decrease oxidative damage in plants. Thus, in the present review, we discussed the various mechanisms through which BC improves the soil properties and microbial and enzymatic activities to counter acidity and salinity problems. The present review will increase the existing knowledge about the role of BC to mitigate soil acidity and salinity problems. This will also provide new suggestions to readers on how this knowledge can be used to ameliorate acidic and saline soils.

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“…The lack of aeration in the root zone leads to a decrease in the content of oxygen in the soil, and the increase in content of hydrogen peroxide in root cells under hypoxia stress leads to the inhibition of cellular activity [44]. The level of enzyme activity in the soil can reflect its biological activity, soil quality and health conditions [45]. In soil crop systems, the root zone soil contains many beneficial bacterial communities, including plant growth hormone producing bacteria and nitrogen-fixing bacteria.…”

Section: Responses Of Soil Health Status To Water-fertilizer-air-coup...mentioning

confidence: 99%

Effects of Water-Fertilizer-Air-Coupling Drip Irrigation on Soil Health Status: Soil Aeration, Enzyme Activities and Microbial Biomass

Liu

Zhang

et al. 2022

Agronomy

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In order to investigate the effects of water-fertilizer-air-coupling drip irrigation on soil health status, including soil aeration (SA), enzyme activity (EA) and microbial biomass (MB), and its response relationship, this glasshouse experiment was conducted using tomato as the test crop, and we designed two fertilization gradients of 135 and 180 kg N·ha−1, two irrigation levels of 0.6-fold and 1.0-fold of the crop-pan coefficient, and two aeration treatments of 5 and 15 mg·L−1 for the three-factor and two-level completely randomized block experiment. The effects of soil dissolved-oxygen concentration, oxygen diffusion rate, soil respiration rate, soil urease, catalase, phosphatase activities and soil microbial biomass were systematically monitored and analyzed in the middle and at the end of crop growth. A structural equation model was used to comprehensively analyze the response relationship among relevant influencing factors. The results showed that coupled drip irrigation increased the soil’s dissolved oxygen, oxygen diffusion rate and soil respiration rate by 14.05%, 30.14% and 53.74%, respectively. Soil urease, catalase and phosphatase activities increased by 22.83%, 93.01% and 61.35%, respectively. The biomass of bacteria, fungi and actinomycetes increased by 49.06%, 50.18% and 20.39%, respectively. The results of a structural equation model analysis showed that water-fertilizer-air-coupling drip irrigation could effectively improve soil health status, and the descending order of influence was MB > EA > SA. This study provides scientific knowledge to reveal the improvement of soil health status by water-fertilizer-air-coupling drip irrigation.

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Organic nutrient sources and biochar technology on microbial biomass carbon and soil enzyme activity in maize-black gram cropping system

Cited by 21 publications

References 43 publications

Combined biochar and manure addition to an agricultural soil benefits fertility, microbial activity, and mitigates manure‐induced CO₂ emissions

Combined biochar and manure addition to an agricultural soil benefits fertility, microbial activity, and mitigates manure‐induced CO₂ emissions

Soil acidification and salinity: the importance of biochar application to agricultural soils

Effects of Water-Fertilizer-Air-Coupling Drip Irrigation on Soil Health Status: Soil Aeration, Enzyme Activities and Microbial Biomass

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Organic nutrient sources and biochar technology on microbial biomass carbon and soil enzyme activity in maize-black gram cropping system

Cited by 21 publications

References 43 publications

Combined biochar and manure addition to an agricultural soil benefits fertility, microbial activity, and mitigates manure‐induced CO2 emissions

Combined biochar and manure addition to an agricultural soil benefits fertility, microbial activity, and mitigates manure‐induced CO2 emissions

Soil acidification and salinity: the importance of biochar application to agricultural soils

Effects of Water-Fertilizer-Air-Coupling Drip Irrigation on Soil Health Status: Soil Aeration, Enzyme Activities and Microbial Biomass

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Combined biochar and manure addition to an agricultural soil benefits fertility, microbial activity, and mitigates manure‐induced CO₂ emissions

Combined biochar and manure addition to an agricultural soil benefits fertility, microbial activity, and mitigates manure‐induced CO₂ emissions