Production of Organic and Mineral Recombinant Mulches and Their Effects on Volumetric Moisture of Erodible Soils

Soil moisture reduction is one of the main effective factors on wind erosion and dust storm. Mulch application is a convenient strategy to enhance soil water retention. This study was performed to evaluate the effects of recombinant organic and mineral mulches on water retention in different matric potential including 330, 1000, 3000, 5000 and 15000 cm in erodible soils (Silty loam). in this study the effectiveness of three recombinant mulch types including organic (O) combination of Bagass biochar, Arabic gum and Gelatin in three levels, organic-mineral mulch (M) named MNF in three kevels consist of 1, 3 and 5% and Hydrogel combined with nanosilica (H) in three levels 1, 3 and 5%, incorporated with soil in the plots with 5*30*50 cm dimension, at 75% of FC for 2 and 4 incubations periods were evaluated on soil moisture properties. The experiment was performed as factorial in randomized completely design with 3 replications. With increasing the treatments levels in two and four month incubation persids, soil water retention increased significantly (p < 0.01) at the proposed suctions. Also application of treatments to the soil enhanced the organic carbon and aggregate stability, meaningfully. The highest organic carbon content and aggregate stability was observed for organic mulch (the combination of Bagasse biochar, Arabic gum and Gelatine). Moreover, at high levels of Hydrogel combined with Nanosilica and also MNF the enhancement in aggregate stability was observed for two month incubation. In addition the TGA analyses clearly show the high resistance of produced mulches against temperature. The high resistance against temperature is a positive item related to the recombinant mulches in order to apply the hotspots. In general, the application of recombinant organic and mineral mulch is a convenient scenario to cover the purposes of sustainable management.