Long-term fertilization effects on soil organic carbon sequestration in an Inceptisol

Interactions between humic substances and organic amendments affecting soil biological properties and growth ofZea maysL. in the arid land region

“…The largest increase was in the HA + SM treatment. Increases in organic carbon with inputs are inevitable but in this case may have been enhanced by higher aggregate stability in the SM + HA treatment protecting organic inputs from decomposition (Tisdall and Oades 1982;Ghosh et al 2018). There was a close correlation (r =0.…”

Long‐term fertilization effects on 13C natural abundance, soil aggregation, and deep soil organic carbon sequestration in an Alfisol

“…The slow SOC turnover at depth resulted from lack of oxygen and fresh C (Dungait, David, Gregory, & Whitmore, ; Ghosh et al, ). In deep soil, a new theory predicted that accumulation of energy from recalcitrant compounds could not sustain microbial activity, and soil decomposition could strongly decrease, promoting C storage over the years.…”

“…The slow SOC turnover at depth resulted from lack of oxygen and fresh C (Dungait, David, Gregory, & Whitmore, 2012;Ghosh et al, 2018 (Table 6). Again, there were significant associations between the deep SOC sequestration rate and the mean grain yields of soybean and wheat (Table S1).…”

Economic assessment of sugarcane pulp as amelioration of soil hydro-physical characteristics, water productivity, and wheat yield

“…In this research, we observed that MWD and WSA were positively affected by the application of sugarcane pulp. This is attributed to the decomposition of sugarcane pulp during the wheat-growing season, especially during the first 2 months, and completely within 120 days (Cifuentes et al, 2013), leading to release (1) various binding substances such as organic materials in general and organic acids in particular, which increases MWD (Abd El-Halim and Lennartz, 2017;Wong et al, 2010 andZhong et al, 2017) and (2) various agglutinants such as polysaccharides, which increases WSA (Abd El-Halim & Lennartz, 2017;Ghosh et al, 2018;Khotabaei et al, 2013 andSix &Paustian, 2014). However, the effect of pulp on soil hydro-physical characteristics, particularly the MWD and WSA, depends on its decomposition rate, amounts of binding and agglutinants substances, and the amount applied (Trivedi et al, 2015).The increase in MWD and WSA can explain the observed decrease in BD and the simultaneous increase in TP (Abd El-Halim and Lennartz, 2017;Phullan et al, 2017 andThangasamy et al, 2017).…”