Carbon mineralization in soil as influenced by crop residue type and placement in an Alfisols of Northwest India

Datta, Ashim; Jat, H.S.; Yadav, Arvind Kumar; Choudhary, Madhu; Sharma, Parbodh Chander; Rai, Mamta; Singh, Lakshman; Majumder, Sham Prasad; Choudhary, Vishu; Jat, M.L.

doi:10.1080/17583004.2018.1544830

Cited by 42 publications

(26 citation statements)

References 33 publications

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“…And indeed, higher DOC was associated with higher respiration in the sandy Cambisol compared to the clay Vertisol. According to this interpretation, Li et al (2013) and Datta et al (2019) found higher emissions for residues placed on the soil surface than for incorporated residues as was the case in our experiment with the Vertisol. This indicates that the incorporation of residues into the soils in our study inhibited CO 2 release, by modifying the availability of resources and oxygen to decomposers and gaseous diffusion from soil pores to the atmosphere.…”

Section: Resultssupporting

confidence: 71%

“…However, we found that the absolute difference in the soil respiration of the Vertisol was lower when residues were incorporated than when left on the surface if compared to control. Such a discrepancy may have arisen from the ability of clay to slow down the organic matter decomposition by absorption, interacting with soil microbes and their external enzyme activity or by limiting oxygen diffusion and CO 2 release (Vogel et al 2015, Datta et al 2019. And indeed, higher DOC was associated with higher respiration in the sandy Cambisol compared to the clay Vertisol.…”

Section: Resultsmentioning

confidence: 99%

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Vertisols and Cambisols had contrasting short term greenhouse gas responses to crop residue management

Badagliacca¹,

Rees²,

Giambalvo³

et al. 2020

PLANT SOIL ENVIRON

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In sustainable agriculture crop residues management should consider the interactions between soil and residue properties, which can affect the decomposition and global greenhouse gases (GHGs) emission. Through a laboratory experiment, we investigated the effect of the management (incorporation and surface placement) of wheat and faba bean residues on their decomposition and CO2, CH4 and N2O emissions from two soils, a Chromic Vertisol and an Eutric Cambisol. In the Vertisol, wheat residues increased the CO2 emission more than faba bean when left on the surface whereas no differences among residues were observed when incorporated. In the Cambisol, faba bean emitted more than wheat when left in the surface and less when incorporated. Total CH4 emissions were higher in faba bean in Cambisol for both management and only when applied in the surface in Vertisol. Total N2O emission in the Vertisol was higher when faba bean was incorporated, and wheat was left on the surface. In the Cambisol, wheat addition increased total N2O emissions by 20% compared to faba bean, with no differences between managements. Our study confirmed that contrasting properties among tested soils resulted in significant interactions with residues own degradability and their placement affecting residue decomposition, soil C and N dynamics, and GHGs emission.

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Section: Resultssupporting

confidence: 71%

Section: Resultsmentioning

confidence: 99%

Vertisols and Cambisols had contrasting short term greenhouse gas responses to crop residue management

Badagliacca¹,

Rees²,

Giambalvo³

et al. 2020

PLANT SOIL ENVIRON

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“…Conservation tillage had significantly higher concentrations of P and K in soil compared to conventional tillage (Table 4) and was associated with residue incorporation and their decomposition, which causes recycling of nutrients present in the residues [64,65] and improves nutrient status of N, P, and K in the soil [66,67]. The results of available P (Table 4) showed the higher concentration of nutrients on the surface which agrees with the study of Jat et al [47] who reported that Olsen P concentration was 38% and 25% higher under straw management practices and conservation tillage compared to conventional farmer's practices at top soil surface [47].…”

Section: Soil Physio-chemical Properties Under Tillage-residue Management Practicesmentioning

confidence: 99%

Improvement of Soil Health through Residue Management and Conservation Tillage in Rice-Wheat Cropping System of Punjab, Pakistan

et al. 2020

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In South Asia, soil health degradation is affecting the sustainability of the rice-wheat cropping system (RWCS). Indeed, for the sustainability of the soil quality, new adaptive technologies, i.e., conservation tillage and straw management resource conservation, are promising options. This investigation was focused on the interaction of tillage and straw management practices and their effects on Aridisols, Yermosols soil quality, and nutrients dynamics with different soil profiles within RWCS. The long-term field experiment was started in 2014 with the scenarios (i) conventional tillage (SC1), (ii) residue incorporation (SC2), (iii) straw management practices (SC3 and SC4) and conservation tillage (SC5). Conservation tillage practice (SC5) showed significant impact on properties of soil and availability of nutrients in comparison with that of conventional farmers practice (SC1) at the studied soil depths. The SC5 showed significant results of gravitational water contents (25.34%), moderate pH (7.4), soil organic-matter (7.6 g kg−1), total nitrogen (0.38 g kg−1), available phosphate (7.4 mg kg−1), available potassium (208 mg kg−1) compared to SC1 treatment at 0 to 15 cm soil depth. Whereas, DTPA-extractable-Cu, Mn, and Zn concentration were significantly higher, i.e., 1.12 mg kg−1, 2.14 mg kg−1, and 4.35 mg kg−1, respectively under SC5 than conventional farmer’s practices, while DTPA (diethylene triamine pentaacetic acid) extractable Fe (6.15 mg kg−1) was more in straw management practices (SC4) than conventional and conservation tillage. Therefore, conservation tillage (SC5) can surge the sustainability of the region by improving soil assets and nutrients accessibility and has the potential to minimize inorganic fertilizers input in the long run.

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“…There are a wide range of management practices having the potential to increase resource use efficiency, improve adaptive capacity while reducing the environmental footprint from the production system, and are defined as climate-smart agriculture (CSA) practices ( FAO, 2010 ; Jat et al, 2016 ). Among different CSA practices; zero-till direct drilling, crop residue retention, crop diversification, and precision nutrient and water management are considered key to positively influence crop productivity and soil health ( Ghimire et al, 2017 ; Jat et al, 2018 , 2019a , b ; Datta et al, 2019 ) while adapting to climatic risks and reducing green house gas (GHG) emissions ( Sapkota et al, 2015 ; Jat et al, 2016 ). However, the application of CSA practices in isolation may or may not play its potential role in adapting to climate risks in the intensive agri-food systems of the IGP.…”

Section: Introductionmentioning

confidence: 99%

Topsoil Bacterial Community Changes and Nutrient Dynamics Under Cereal Based Climate-Smart Agri-Food Systems

et al. 2020

Self Cite

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Soil microorganisms play a critical role in soil biogeochemical processes, nutrient cycling, and resilience of agri-food systems and are immensely influenced by agronomic management practices. Understanding soil bacterial community and nutrient dynamics under contrasting management practices is of utmost importance for building climatesmart agri-food systems. Soil samples were collected at 0-15 cm soil depth from six management scenarios in long-term conservation agriculture (CA) and climatesmart agriculture (CSA) practices. These scenarios (Sc) involved; ScI-conventional tillage based rice-wheat rotation, ScII-partial CA based rice-wheat-mungbean, ScIII-partial CSA based rice-wheat-mungbean, ScIV is partial CSA based maize-wheat-mungbean, ScV and ScVI are CSA based scenarios, were similar to ScIII and ScIV respectively, layered with precision water & nutrient management. The sequencing of soil DNA results revealed that across the six scenarios, a total of forty bacterial phyla were observed, with Proteobacteria as dominant in all scenarios, followed by Acidobacteria and Actinobacteria. The relative abundance of Proteobacteria was 29% higher in ricebased CSA scenarios (ScIII and ScV) and 16% higher in maize-based CSA scenarios (ScIV and ScVI) compared to conventional-till practice (ScI). The relative abundance of Acidobacteria and Actinobacteria was respectively 29% and 91% higher in CT than CSA based rice and 27% and 110% higher than maize-based scenarios. Some taxa are present relatively in very low abundance or exclusively in some scenarios, but these might play important roles there. Three phyla are exclusively present in ScI and ScII i.e., Spirochaetes, Thermi, and Euryarchaeota. Shannon diversity index was 11% higher in CT compared to CSA scenarios. Maize based CSA scenarios recorded higher diversity indices than rice-based CSA scenarios. Similar to changes in soil bacterial community, the nutrient dynamics among the different scenarios also varied significantly. After nine years of continuous cropping, the soil organic carbon was improved by 111% and 31% in CSA and CA scenarios over the CT scenario. Similarly, the available

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Carbon mineralization in soil as influenced by crop residue type and placement in an Alfisols of Northwest India

Cited by 42 publications

References 33 publications

Vertisols and Cambisols had contrasting short term greenhouse gas responses to crop residue management

Vertisols and Cambisols had contrasting short term greenhouse gas responses to crop residue management

Improvement of Soil Health through Residue Management and Conservation Tillage in Rice-Wheat Cropping System of Punjab, Pakistan

Topsoil Bacterial Community Changes and Nutrient Dynamics Under Cereal Based Climate-Smart Agri-Food Systems

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