The humic substance consists of acid, fulvic and humin. Humic acid is a useful metal complexing agent, good dispersant, redox agent. showed an auxin-like activity thus promoted root growth development. It positively affected soil’s physical, chemical, biological properties. Hence, indirectly improved plant by chelating nutrients to the plant. However, converted carcinogen compounds in chlorinat...

The use of a composite defoliant in various norms Bukhara-8 cotton the Bukhara region is considered. Identified from 10 options that had positive impact on efficiency defoliation, productivity were - (Mg (ClO 3 ) 2liq . 4 l/ha + Fitovak 75 ml/ha Urea 6.5 Humin-1.5 kg/ha). weight bolls, 1st collection, gross yield higher with control, standards respectively heavier by: 0.7-0.9-0.8 g and 4.5-3.7-...

Biochar (BC) is a material that has many applications in agricultural and environmental activities. The aim of the study was to define influence BC produced low-temperature pyrolysis from various organic waste materials, including one-month-old compost (OMOC), pine bark (PB), needle mulch (NM), cones (PC) maple leaves (ML), on soil enzyme activity as well its relation with matter properties. A ...

Two cores from a Weichselian periglacial alluvial fan were dated using 14C and OSL, to verify the reliability of both methods check upper dating limit method. Both yielded similar chronology for core Eerbeek-I, with infinite dates lower part where OSL indicated ages over 45 ka. Finite obtained throughout Eerbeek-II, despite stratigraphic evidence suggesting beyond limits. Apparently, additional...

ABSTRACT Agroecological management can favor the improvement of soil attributes, especially organic matter (SOM) and aggregation. The objective study was to quantify carbon contents humic oxidizable fractions SOM aggregates from different origins agroecological systems. Five experimental areas located in Integrated Production System were evaluated: AFS – Agroforestry System; C-SUN Coffee full s...

Current bio-ethanol production entails the enzymatic depolymerization of cellulose, but this process shows low efficiency and poor economy. In work, we developed a consecutive aqueous hydrogenolysis for conversion corn-stalk cellulose to produce relatively high concentration (6.1 wt%) without humin formation. A yield (ca. 50 is extracted from corn stalk using green solvent (80 wt% 1,4-butanedio...

Biological treatment of 2,4,6-trinitrotoluene (TNT) in soil rarely results in complete mineralization of the parent compound. More often, the largest proportion of the TNT carbon is incorporated into the soil organic matrix. Therefore, we evaluated the stability of nonextractable residues from various bioremediation processes of 14C-TNT in soils. The extractable amounts of the residual radioact...

The conversion from native forest to other land-use systems can decline the soil organic carbon (SOC) in tropical soils. However, conservationist management could mitigate SOC losses, promoting functioning and stability of agricultural This study aimed address influence different on fractions Northeastern Brazil. Topsoil samples were collected areas under pasture (PAS), no-tillage (NT1 NT2), eu...

Abstract. In our previous studies, we filtered out fungus (Trichoderma reesei) to have the best ability transform corn straw into a humic-acid-like substance through laboratory incubation experiments. order further verify former findings, set up 360 d field experiment that included three treatments applied under equal carbon (C) mass: (i) returned (CS), (ii) fermented treated with Trichoderma r...