Cover Crop Complements Flue Gas Desulfurized Gypsum to Improve No-till Soil Quality

Islam, Rafiq; Roth, Greg; Rahman, Mohammad Arifur; Didenko, Nataliia; Reeder, Randall

doi:10.1080/00103624.2021.1872594

Cited by 29 publications

(51 citation statements)

References 39 publications

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“…A significant variation in POXC content impacted by N fertilization was due to N stoichiometrically linked with C in SOM [61], therefore an increase in N invariably increases the TOC including the POXC content. The POXC is one of the labile (biochemically active) forms of TOC that contributes greatly to the soil quality functions and diversity of the soil food web and has been shown to be sensitive to crop-soil management practices [19,27,40]. While Jokela et al [62] reported a greater sensitivity of POXC to management systems that was reflected in soil microbial and physical properties, others reported that POXC, as a measure of soil health, was capable of detecting management-induced changes in the labile C pool of soil [19,27,40,[63][64][65][66].…”

Section: Plos Onementioning

confidence: 99%

“…There were studies that emphasize the labile C pool, a fraction of TOC, that are sensitive and can provide early indications of management-induced changes [12][13][14]. Several TOC pools and C-based quotients that are considered as labile are POC), dissolved organic C, MBC, active C (AC) or POXC, potentially mineralizable C (PMC), light C fraction (LF), hot-water soluble C (HWSC), anthrone reactive C, metabolic quotient (qR), BR, specific maintenance respiration (qCO 2 ), and CMI, which have been suggested as sensitive indicators of TOC change in response to management practices [15][16][17][18][19].…”

Section: Introductionmentioning

confidence: 99%

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Nitrogen fertilization impact on soil carbon pools and their stratification and lability in subtropical wheat-mungbean-rice agroecosystems

et al. 2021

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Nitrogen (N) is the prime nutrient for crop production and carbon-based functions associated with soil quality. The objective of our study (2012 to 2019) was to evaluate the impact of variable rates of N fertilization on soil organic carbon (C) pools and their stocks, stratification, and lability in subtropical wheat (Triticum aestivum)—mungbean (Vigna radiata)—rice (Oryza sativa L) agroecosystems. The field experiment was conducted in a randomized complete block design (RCB) with N fertilization at 60, 80, 100, 120, and 140% of the recommended rates of wheat (100 kg/ha), mungbean (20 kg/ha), and rice (80 kg/ha), respectively. Composite soils were collected at 0–15 and 15–30 cm depths from each replicated plot and analyzed for microbial biomass (MBC), basal respiration (BR), total organic C (TOC), particulate organic C (POC), permanganate oxidizable C (POXC), carbon lability indices, and stratification. N fertilization (120 and 140%) significantly increased the POC at both depths; however, the effect was more pronounced in the surface layer. Moreover, N fertilization (at 120% and 140%) significantly increased the TOC and labile C pools when compared to the control (100%) and the lower rates (60 and 80%). N fertilization significantly increased MBC, C pool (CPI), lability (CLI), and management indices (CMI), indicating improved and efficient soil biological activities in such systems. The MBC and POC stocks were significantly higher with higher rates of N fertilization (120% and 140%) than the control. Likewise, higher rates of N fertilization significantly increased the stocks of labile C pools. Equally, the stratification values for POC, MBC, and POXC show evidence of improved soil quality because of optimum N fertilization (120–140%) to maintain and/or improve soil quality under rice-based systems in subtropical climates.

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Section: Plos Onementioning

confidence: 99%

Section: Introductionmentioning

confidence: 99%

Nitrogen fertilization impact on soil carbon pools and their stratification and lability in subtropical wheat-mungbean-rice agroecosystems

et al. 2021

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“…Acidic and charland soils currently constitute a major problem in soils comprising about 7.52 Mha of land and seriously affecting crop production in more than 36% of the territory in Bangladesh (Satter and Islam, 2010;FRG, 2018;Islam et al, 2021a;Uddin et al, 2021). Acidic soils have only small amounts of organic matter, low macronutrient availability, and micronutrient toxicity, thereby contributing to poor soil fertility (Kumar et al, 2019;Islam et al, 2021b).…”

Section: Introductionmentioning

confidence: 99%

“…Conversely, the integrated plant nutrient system (IPNS), which combines chemical and organic fertilizers, is a widely accepted technology for sustaining soil health and its fertility, and supplying crops with their nutrient demands on a regular basis (Zhang et al, 2014a;Selim and Al-Owied, 2017;Selim, 2018;Jahangir et al, 2021a). Soil amendments such as poultry manure can significantly increase the SOC content, total exchangeable bases, pH, and microbial population (Kobierski et al, 2017;Islam et al, 2021a;Islam et al, 2021b). By contrast, biochar application in crop fields has attracted much research interest while its effects on soil quality and crop production are being debated.…”

Section: Introductionmentioning

confidence: 99%

Biochar and Compost-Based Integrated Nutrient Management: Potential for Carbon and Microbial Enrichment in Degraded Acidic and Charland Soils

Rahman

Islam

Uddin

et al. 2022

Front. Environ. Sci.

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Soil acidification and charland formation through alluvial sand deposition are emerging threats to food security in Bangladesh in that they endanger crop production in about 35% of its territory. The integrated plant nutrient system (IPNS) is a globally accepted nutrient management approach designed to revive the damaged soils’ fertility level. Total organic carbon (TOC) in soil is a composite index of soil quality that has consequences for agricultural productivity and natural soil ecosystems. This study assesses the impacts of using biochar, compost, poultry litter, and vermicompost-based IPNS approaches on labile and TOC pools, TOC stocks, lability and management indices, and microbial populations under different cropping patterns after 2 years in acidic and charland soils. The application of IPNS treatments increased microbial biomass carbon (MBC) by 9.1–50.0% in acidic soil and 8.8–41.2% in charland soil compared to the untreated soil, with the largest increase in poultry manure biochar (PMB). Microbial biomass nitrogen (MBN) rose from 20 to 180% in charland soil compared to the control, although no effect was observed in acidic soil. Basal respiration (BR) rose by 43–429% in acidic soil and 16–189% in charland soil compared to the control, exhibiting the highest value in PMB. IPNS treatments significantly improved SOC and POC but did not affect POXc and bulk density in both soils. The PMB and organic fertilizer (OF, compost)-based IPNS wielded the greatest influence on the lability index of MBC in acidic soils and the management index of MBC in both soils. This is despite the fact that IPNS did not affect the lability and management indices of active carbon (AC). IPNS treatments increased the stocks of SOC and MBC in both the soils and POC stock in acidic soil. IPNS treatments significantly boosted the bacterial and fungal populations in both soils, despite having no effect on phosphorus-solubilizing bacteria (PSB). Thus, PMB and OF (compost)-based IPNS may be a better nutrient management practice in degraded acidic and charland soils. This is especially the case in terms of soil quality improvement, soil carbon sequestration, and microbial enrichment.

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“…Total soil organic C (SOC) and total N (TN) contents will be determined using the automated dry combustion CNS analyzer. Soil active C (AC) and N (AN), as composite indicators of soil quality and N availability, will be determined using a modified KMnO 4 oxidation method (Islam et al, 2021). Soil macro-(P, Ca, Mg, K, and S) and micronutrients (Fe, Mn, Cu, Zn, B, Mo), and heavy metals (Al, Pb, Co, Cr, and Ni) will be analyzed by Melich-3 extraction and inductively coupled plasma emission spectrometry.…”

Section: Introductionmentioning

confidence: 99%

Recycling Biosolids to Improve Marginal Lands for Bioenergy Feedstock Production in Ukraine

Didenko

Mosiichuk

Zosymchuk

et al. 2021

LRaWM

Self Cite

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Energy independence is one of the national priorities facing Ukraine today. Plant-based feedstocks have the potential to diversify Ukraine’s energy independence by decreasing dependence on petroleum-based energy, reducing greenhouse gas emissions, expanding renewable fuel industries and creating job opportunities. However, biofeedstock needs to be competitive on availability, performance, and price to produce, market, and produce fuels. We hypothesize that domestically produced feedstocks from sweet sorghum, using proactive recycling of nutrient-rich biosolids on vast areas of degraded and marginal lands, could be a win-win energy independence strategy in Ukraine. Our goal is to create for generating a steady-state source of biofeedstock and disseminate science-based knowledge and training to the clientele. Specific objectives are to: (1) establish research studies to evaluate growth and feedstock productivity, nutrient removal, and feedstock characteristics of sweet sorghum fertilized with biosolids on degraded and marginal lands in Rivne, Kherson, Dnipro, and Kyiv regions of Ukraine; and (2) determine the impact of biosolids and sweet sorghum on soil quality. Data collected on growth, feedstock production, feedstock characteristics, fuel potential, and high-value co-products (biochar) of sweet sorghum and soil quality will be evaluated by multivariate statistics. Input, output, and outreach data will be subject to techno-economic analyses to evaluate the economically viability, environmentally compatibility, and social acceptability of the project. Traditional and electronic outlet activities will be utilized to disseminate outcomes and outputs and to evaluate project impacts.

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Cover Crop Complements Flue Gas Desulfurized Gypsum to Improve No-till Soil Quality

Cited by 29 publications

References 39 publications

Nitrogen fertilization impact on soil carbon pools and their stratification and lability in subtropical wheat-mungbean-rice agroecosystems

Nitrogen fertilization impact on soil carbon pools and their stratification and lability in subtropical wheat-mungbean-rice agroecosystems

Biochar and Compost-Based Integrated Nutrient Management: Potential for Carbon and Microbial Enrichment in Degraded Acidic and Charland Soils

Recycling Biosolids to Improve Marginal Lands for Bioenergy Feedstock Production in Ukraine

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