A review on carbon pools and sequestration as influenced by long-term management practices in a rice–wheat cropping system

Dheri, G. S.; Nazir, Gazala

doi:10.1080/17583004.2021.1976674

Cited by 18 publications

(7 citation statements)

References 105 publications

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“…Green manure amendment increased the CPI and reduced the CMI due to the higher SOC and lower LOC. These findings highlight the key role of soil LOC in soil carbon management index when subjected to green manure amendment [26]. Lenka et al (2015) also confirmed that the CMI compares the change that occurs in SOC and LOC as a result of agricultural practices [8].…”

Section: Soil Carbon Management Indicessupporting

confidence: 58%

Green Manure Amendment in Paddies Improves Soil Carbon Sequestration but Cannot Substitute the Critical Role of N Fertilizer in Rice Production

et al. 2022

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Clarifying the benefits of carbon sequestration and crop production of continuous green manure amendment is crucial for sustainable agricultural development. Here, using a long-term located experiment, we assessed the effects of 18 years’ ryegrass/milk vetch amendment with (NF, 150 kg N ha−1) or without nitrogen (N) fertilizer input (CK), on soil carbon management indices, paddy methane (CH4) emissions and rice yields. The results showed that green manure, rather than fertilization, played a critical role in soil CMI, increasing the carbon pool index but reducing the carbon management index. The increased soil organic carbon and the reduced labile organic carbon were the main causes for this performance. Additionally, the effects of both fertilization and green manure amendment on CH4 emissions were insignificant; however, fertilization significantly increased grain yield by 39.30% compared to CK. As a result, the methane emission intensity under fertilization treatment was notably lower than that from CK. The findings suggest that green manure amendment is a profitable manipulation for enhancing carbon sequestration without increasing paddy CH4 emissions. However, this cannot substitute the critical role of N fertilizer in rice production.

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Section: Soil Carbon Management Indicessupporting

confidence: 58%

Green Manure Amendment in Paddies Improves Soil Carbon Sequestration but Cannot Substitute the Critical Role of N Fertilizer in Rice Production

et al. 2022

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“…On the other hand, the increased microbial activity also increases the stabilization and polymerization of the labile C fraction to the humus, resulting in higher C RC in the INM treatments. Similarly, in a review, Dheri and Nazir (2021) showed that the NPK + farmyard manure could increase the contents of both labile and recalcitrant C. However, in our study, the allocation of C to oxidizable SOC fractions was differently affected by applying gliricidia and farmyard manure in combination with NPK. One possible explanation for this is the differences in the composition/biochemistry of the applied organics.…”

Section: Carbon and Its Fractionscontrasting

confidence: 43%

Long‐term nutrient management effects on organic carbon fractions and carbon sequestration in Typic Haplusterts soils of Central India

Ramteke

Gabhane

Kadu

et al. 2023

Soil Use and Management

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Productivity of agricultural soils, particularly in India's rainfed tropics, has rigorously fallen because of increased losses of soil organic carbon (SOC) during the last decades; consequently, sustaining crop productivity through the maintenance of SOC level is difficult for dryland farmers. Moreover, systematic research on carbon (C) sequestration, SOC pools, their sensitivity to management change and critical C input level for zero change in SOC, especially under cotton–greengram intercropping in Vertisols of semi‐arid climates, is limited. Therefore, we studied cotton–greengram intercropping after 35 years (1987–2022) under continuous application of organics (farmyard manure/gliricidia), chemical fertilizers and substitution of 50% or 100% fertilizer nitrogen (N) through farmyard manure/gliricidia (integrated nutrient management) (INM). The INM treatments recorded significantly higher cotton–greengram system productivity and sustainable yield index. Continuous cropping without an external nutrient source decreased the soil C, while cropping with INM resulted in a positive build‐up of C in both labile and stable pools. On average, about 62% of total organic carbon was stabilized in the passive pool (CLL, Less Labile C + CRC, Recalcitrant C) of SOC. The increment in SOC stock was linearly (y = 0.0767x – 0.2248; R2 = 0.87, p < .001) related to the system productivity. The very labile C, potassium permanganate oxidizable C and microbial biomass C fractions were the most sensitive to nutrient management. A threshold C input of 0.71 Mg C ha−1 year−1 is required to maintain antecedent SOC, which is readily supplied to the soil using the region's current cotton–greengram intercropping system. Thus, this cropping system is quite capable to maintain antecedent SOC. We conclude that, in the context of changing climates, promoting cotton–legume intercropping using locally available farmyard manure/gliricidia as a substitute for 50%‐‐Fertilizer N is a viable strategy for enhancing SOC storage while achieving sustainable productivity in semi‐arid Vertisols of Central India.

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“…This result is in line with the study conducted [12] that C stock increases with increasing bulk density, and vice versa. Bulk density significantly affects C uptake by changing soil porosity [13]. The higher the bulk density value, the fewer pores in the soil, thereby reducing the potential for soil carbon loss through decomposition because microbes do not have sufficient oxygen supply and have little access to organic matter.…”

Section: Paddy Land Management Systemmentioning

confidence: 99%

“…Bulk density alters soil porosity, which has a major impact on C uptake [13]. Because bacteria do not have adequate oxygen supplies and have limited access to organic matter, the potential for soil carbon loss through decomposition is reduced the higher the bulk density value and the fewer holes in the soil.…”

Section: Stockmentioning

confidence: 99%

Rice paddy field on Gentungan, Karanganyar: Soil C Humic Acid, Fulvic Acid, and Stock as Affected by Period of Organic Practices

Syamsiyah

Ariyanto

Herawati

et al. 2023

IOP Conf. Ser.: Earth Environ. Sci.

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Carbon sequestration (CS) is an essential strategy for mitigating climate change caused by increasing concentrations of greenhouse gases (GHGs in the atmosphere). Agriculture provides greenhouse gas effects, one of which is in wetland agriculture (rice fields). The research aims to evaluate organic, semi-organic, and conventional farming systems in rice fields on the levels of humic acid, fulvic acid, and carbon stock. The research method is descriptive, explorative, survey, and laboratory analysis. The research was conducted in Gentungan, Karanganyar Regency, Indonesia. Organic farming (4,7, and 10 years), semi-organic and conventional. The results showed no significant difference in the levels of humic acid, fulvic acid, and carbon stock between organic, semi-organic, and conventional farming systems. Organic farming systems increase the humic acid, fulvic acid, and carbon stock in paddy fields compared to semi-organic and conventional.

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A review on carbon pools and sequestration as influenced by long-term management practices in a rice–wheat cropping system

Cited by 18 publications

References 105 publications

Green Manure Amendment in Paddies Improves Soil Carbon Sequestration but Cannot Substitute the Critical Role of N Fertilizer in Rice Production

Green Manure Amendment in Paddies Improves Soil Carbon Sequestration but Cannot Substitute the Critical Role of N Fertilizer in Rice Production

Long‐term nutrient management effects on organic carbon fractions and carbon sequestration in Typic Haplusterts soils of Central India

Rice paddy field on Gentungan, Karanganyar: Soil C Humic Acid, Fulvic Acid, and Stock as Affected by Period of Organic Practices

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