Fertilization affects the formation and stability of soil aggregate, as well nutrient status aggregate. However, potential effect compost on aggregate its characteristics is still unclear. In view this, we conducted a greenhouse vegetable cultivation experiment to evaluate water-stable (WSA) indices stoichiometry at 0 20 cm depth with four treatments: (1) no fertilizer (CK), (2) chemical (CF), ...

Soil aggregate stability is an essential soil property, influencing many soil behaviors. However, the relationships between drying and wetting cycles and aggregate stability dynamics with different initial aggregate size classes have not been clarified. This study was conducted to investigate the effects of drying and wetting cycles on aggregate stability under different breakdown mechanisms, a...

abstract one of the methods for improving soil physical quality of arid and semiarid regions is the application of cheap organic conditioners such as sewage sludge. this research was conducted in large pots (50 cm diameter, 25 cm height) to study the effects of tabriz petrochemical biological sludge at 4 rates (25, 50, 75 and 100 tons/ha) on organic carbon (oc), mean weight diameter (mwd) of ag...

The effect of biochar applications on soil properties varies significantly depending textures. Therefore, a pot experiment was carried out to investigate the effects (BC) amendment some physico-mechanic and chemical properties, such as bulk density (BD), particle (PD), mean weight diameter (MWD), aggregate stability (AS), Attarberg limits, pH, electric conductivity (EC), organic carbon (OC), to...

Objective: Soil organic carbon has been the most important soil quality measurement factors and has intense relation with soil physical, chemical and biological characteristics. Organic matter and its components are important factors of soil aggregates constitution and stability and play significant role in its structure. So, this research has been done for achieving this purpose. Methods: This...

The effect of no-tillage (NT) vs. conventional tillage (CT) has been evaluated in rainfed conditions but seldom studied under irrigation, where soil sealing favour degradation. To contribute to this knwledge, research analyses aggregate stability disaggregation forces produced irrigation (slaking and mechanical breakdown) the susceptibility soils cropped with irrigated maize. Soils were sampled...

Soil aggregate stability is an ideal integrative soil quality indicator, but little known about the relevance of such indicator with depth for salt-affected soils. The objective this study was to determine and identify preponderant aggregation factors, both in topsoil subsoil horizons conditions. We conducted field investigations by describing profiles pedological pits collecting samples from d...

The knowledge and characterization of aggregate stability are relevant to select adequate management avoid its degradation. Thus, this study aimed characterize the spatial variability in cohesive soils under crop conservation systems. experiment was performed two different areas soybean production: no-tillage System (NTS) livestock farming integration system (LFI), In each production area, a sa...

An off-lattice Monte Carlo algorithm for solutions of equilibrium polymers (EP) is proposed. At low and moderate densities this is shown to reproduce faithfully the (static) properties found recently for flexible linear EP using a lattice model [1]. The molecular weight distribution (MWD) is well described in the dilute limit by a Schultz-Zimm distribution and becomes purely exponential in the ...