Carbon mineralization in soil of roots from twenty crop species, as affected by their chemical composition and botanical family

Redin, Marciel; Guénon, René; Recous, Sylvie; Schmatz, Raquel; Freitas, Luana Liberalesso de; Aita, Celso; Giacomini, Sandro José

doi:10.1007/s11104-013-2021-5

Cited by 48 publications

(35 citation statements)

References 30 publications

(36 reference statements)

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“…In contrast, residue soils contained a higher amount of C due to the retention of crop residues, which input OC into the soils (Anderson, 2009;Sanderman et al, 2010). It should be noted that given the differences in crop residue type, likely differences in residue chemistry (Redlin et al, 2014) would influence resultant relative differences between residue treatments here, and this would vary year-on-year with crop rotation changes. Carbon is incorporated into the soil after microbial decomposition of crop residues in the residue retention system.…”

Section: Discussionmentioning

confidence: 99%

Assessing the effect of crop residue removal on soil organic carbon storage and microbial activity in a no‐till cropping system

Chowdhury

Farrell

Butler³

et al. 2015

Soil Use and Management

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Changes in agricultural management strategies have received much attention in recent years with a view to increasing or maintaining the amount of carbon (C) sequestered as soil organic C (SOC). In many parts of the world, minimum or no‐till management has been promoted as a means of improving soil quality, reducing losses of erosion and potentially increasing SOC stocks. However, no‐till systems can become problematic and potentially disease‐prone, especially due to high crop residue loadings. Consequently, residue removal either by harvesting or burning off may be employed to reduce these pressures. Here, we examined the effect of crop residue removal on C storage in soil that had been under no‐till management for 20 yr. We predicted improved physical properties (i.e. lower bulk density) and greater microbial activity under the residue retention soils due to greater readily available C and nutrients derived from crop residues. In contrast, we predicted relative reductions in SOC in the no residue soils due to a lack of available residue‐derived C for microbial use. Residue removal caused a relative C loss from the soil, which was related to C input, amount of nutrient availability and microbial activity. We demonstrate the importance of maintaining crop residue cover in no‐till cropping systems for soil function and highlight the potentially deleterious effects of changing management strategy to increased residue harvesting or removal by burning.

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Section: Discussionmentioning

confidence: 99%

Assessing the effect of crop residue removal on soil organic carbon storage and microbial activity in a no‐till cropping system

Chowdhury

Farrell

Butler³

et al. 2015

Soil Use and Management

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“…The initial litter quality determines its degradation behaviour in soil. This is true for aboveground as well as belowground litter additions (Redin et al, 2014). Total soluble sugar content is an important controlling factor in the earlier phase of decomposition, whereas the later stages of decomposition may be regulated by the lignin/N ratio of initial litter.…”

Section: Effect Of Grassland Management On Om Inputmentioning

confidence: 98%

The impact of grassland management on biogeochemical cycles involving carbon, nitrogen and phosphorus

Rumpel

Creme²,

Ngo

et al. 2015

J. Soil Sci. Plant Nutr.

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Grassland introduction into intensively managed agricultural landscapes may enhance soil organic matter (SOM) content and ecosystem services. However, the magnitude of this effect depends on grassland management practices, and their influence on the soil system. The aim of this paper is to highlight these impacts and their consequences for SOM dynamics and element cycling. We focused in particular on the effect of different grassland management practices in terms of grazing regime, fertilization, and species choice.While carbon, nitrogen and phosphorus cycles are more strongly coupled under grassland as compared to permanent cropping, uncoupling of elemental cycles may occur through management intensification. Grazing regime, fertilization and species choice affect elemental coupling and SOM turnover via organic matter input and rhizosphere activity to different extent, thereby resulting in contrasting SOM storage. Grazing may be more beneficial for SOM contents compared to mowing up to a certain animal density depending on soil type and pedoclimatic context. SOM storage may be increased in some cases through specific fertilizer additions, whereas in others no change was observed. Species choice, e.g. high diversity or introduction of legumes, influence element budgets and soil nutrient availability through plant physiological constraints as well as intraor interspecific interactions. The effect of different plant species mixtures on soil parameters has rarely been elucidated.We conclude that the impact of grassland management practices on SOM of different soil types and the resulting ecosystem services, such as C and nutrient storage need further research in contrasting pedoclimatic contexts. More studies on the controls of belowground biogeochemical cycling of elements are necessary in order to fully understand and manage belowground processes via aboveground plant communities.

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“…There were no differences between the root dry mass results among the weed control methods. The relationship between root dynamics and SOM stabilization has become a major environmental issue and has received increasing attention recently (Redin et al, 2014). The HAWE and HERB treatments had lower shoot dry mass than other treatments, while CONT and SCAP treatments (both presenting similar field characteristics) had higher shoot dry mass, since the amount of above-ground residue tended to be higher than in the other treatments.…”

Section: Weed Diversity and Densitymentioning

confidence: 99%

“…SCAP: no-weed control between coffee row; GMAY: peanut horse covering; PMOW: portable mechanical mower; HAWE: hand weeding; CONT: weed check; GMMA: dwarf mucuna covering; HERB: herbicide application. when other field and environmental factors are held constant (Redin et al, 2014).…”

Section: Weed Diversity and Densitymentioning

confidence: 99%

Soil organic matter quality and weed diversity in coffee plantation area submitted to weed control and cover crops management

Martins

Araújo-Junior

Miyazawa

et al. 2015

Soil and Tillage Research

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Carbon mineralization in soil of roots from twenty crop species, as affected by their chemical composition and botanical family

Cited by 48 publications

References 30 publications

Assessing the effect of crop residue removal on soil organic carbon storage and microbial activity in a no‐till cropping system

Assessing the effect of crop residue removal on soil organic carbon storage and microbial activity in a no‐till cropping system

The impact of grassland management on biogeochemical cycles involving carbon, nitrogen and phosphorus

Soil organic matter quality and weed diversity in coffee plantation area submitted to weed control and cover crops management

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