Soil aggregation and distribution of carbon and nitrogen in different fractions after 41 years long-term fertilizer experiment in tropical rice–rice system

Aggregation stability and organic carbon fraction in a soil amended with some plant residues, nanozeolite, and natural zeolite

“…Higher C accumulation in macroaggregates could be due to the lower decomposable SOM associated with these aggregates and also the direct contribution of SOM to the stability of macroaggregates resulting in only C-rich macroaggregates being able to withstand slaking due to zeolitic materials in the soil. The achieved results from the present study are in accordance with the results of Tripathi et al (2014). Fig.…”

Long-Term Manuring and Fertilization Effects on Soil Physical Properties after Forty Two Cycles under Rice-Wheat System in North Indian Mollisols

“…The positive effect of FYM in increasing MWD upto the deeper layers indicates that apart from direct effect of FYM as a binding agent it indirectly might have increased MWD through increased root biomass leading to higher organic matter content. Rasool et al, (2008) and Tripathi et al, (2014) also observed that application of FYM improved the MWD. The increase in organic carbon content might be responsible for stabilization of aggregates and hence higher MWD with the application of FYM and inorganic fertilizers which improves the physical condition of soil.…”

“…The decrease in soil BD under 100% NPK with organic manure (FYM) mainly contributed to higher organic matter content of the soil because of higher microbial activities which leads to better aggregation of soil. Tripathi et al, (2014) and Pant et al, (2017) also observed that application of FYM along with fertilizers decreases the BD of soil.…”

Effect of greenhouse soil management on soil aggregation and organic matter in northeast China

“…The critical role of SOC dynamics in aggregate formation and aggregate stability was already identified in the 1950's. When disturbing forces are higher than the binding forces of SOC, weak aggregates are disrupted and consequently result in decomposition of SOC and deterioration of the soil structural quality (Lieskovský and Kenderessy, 2014;Pulido Moncada et al, 2013;Tripathi et al, 2014). Moreover, soil can function as a sink for atmospheric CO 2 and the increased sequestration of C in agricultural soils can potentially mitigate the global increase in atmospheric greenhouse gases (Exbrayat et al, 2013;Pritchard et al, 2014).…”

“…Labile SOC is an important fraction of the total organic matter in soils and is a key determinant of the soil fertility and structure. SOC is a major aggregate binding agent (Alidad et al, 2012), and stable aggregates physically protect SOC against decomposition and function as an important reservoir of SOC (Barbera et al, 2012;Tripathi et al, 2014;Yan-Gui et al, 2013). In stabilized SOC, a fast macroaggregate turnover results in low physical protection level for SOC (Du et al, 2013;Six et al, 2004).…”