Organic amendment effects on aggregate-associated organic C, microbial biomass C and glomalin in agricultural soils

No‐tillage with half‐amount residue retention enhances microbial functional diversity, enzyme activity and glomalin‐related soil protein content within soil aggregates

“…For example, in the North China Plain, the succession of winter wheat ( Triticum aestivum L.) and summer maize ( Zea mays L.) is very popular, and wheat and maize straws can be retained in the field before the maize and wheat seasons, respectively (Hu et al ., ). However, the distribution patterns of soil organic C and microbial biomass C within aggregates can be affected by organic material additions (Zhang et al ., ). It has also been demonstrated that conservation tillage, particularly no‐tillage (NT), could increase soil organic matter and promote aggregate stability (Dai et al ., ).…”

Effect of sugarcane pulp extract on ameliorating soil structure stability

“…On the other hand, the process of aggregation is supported by binding substances such as organic materials in general and organic acids in particular. Accordingly, various organic compounds and soil agglutinants, i.e., organic carbon (Table 4) and polysaccharides, are released in large amounts with the disintegration of FSP during the composting process, which transfer with the extract and facilitates aggregates formation and increases their stability (Annabiet al, 2011;Abd El-Halim and Lennartz, 2017;Bashir et al, 2016;Gülser et al, 2015;Sanjuán et al, 2001 andZhang et al, 2014). In addition, some organic matter sources are hydrophobic substances, which may also have increased the resistance of aggregates to slaking in water (Piccolo andMbagwu, 1999), the result is to increase the aggregate stability.…”

“…The most recent studies confirmed that soil improvement by addition of the organic materials reducesthe deterioration of geometric arrangement of soil aggregates (Bashir et al, 2016;Vidal-Beaudet et al, 2018;Farid et al, 2014;Tuo et al, 2017;Gülser et al, 2015 andZhang et al, 2014). An important positive relationship between soil organic carbon content and the increase of MWD was reported (Bashir et al, 2016;Gülser et al, 2015 andZhang et al, 2014). Soil organic carbon as a major binding agent is one of the important drivers of soil structure and stabilization process of their aggregates, hence improves the relative abundance of macroaggregates at the expense of other aggregates (Das et al, 2014;Kashif et al, 2015 andZhang et al, 2014).…”

“…Out of the various index of structure improvement,measurement Mean Weight Diameter (MWD) is an important index (Boogar et al, 2014;Tagar et al, 2015 andTuo et al, 2017). The most recent studies confirmed that soil improvement by addition of the organic materials reducesthe deterioration of geometric arrangement of soil aggregates (Bashir et al, 2016;Vidal-Beaudet et al, 2018;Farid et al, 2014;Tuo et al, 2017;Gülser et al, 2015 andZhang et al, 2014). An important positive relationship between soil organic carbon content and the increase of MWD was reported (Bashir et al, 2016;Gülser et al, 2015 andZhang et al, 2014).…”

“…An important positive relationship between soil organic carbon content and the increase of MWD was reported (Bashir et al, 2016;Gülser et al, 2015 andZhang et al, 2014). Soil organic carbon as a major binding agent is one of the important drivers of soil structure and stabilization process of their aggregates, hence improves the relative abundance of macroaggregates at the expense of other aggregates (Das et al, 2014;Kashif et al, 2015 andZhang et al, 2014).…”