The type and amount of organic matter present in industrially contaminated soils will influence the risk they pose. Previous studies have shown the importance of humic and fulvic acids (FAs) (important components of soil organic matter) in increasing the solubility of toxic metals but were not carried out using toxic metal levels and the pH range typical of industrially contaminated soils. This...

This study was planned to estimate the performance of three zinc fertilizers [Zn sulfate heptahydrate (non-chelated), Zn- EDTA and Zn-humate (chelated)] at four levels (0, 2.5, 5.0, 7.5 mg kg-1) on use efficiency, availability crop productivity with rice. Field trials were conducted in clay loam sandy textured soils using factorial randomized block design (FRBD) replications. Data recorded yiel...

Objective: This study was conductud with the aim of determining effects different applications (Fe fertilizers, K-Humate, and sulfur) on shoot length, active total Fe, chlorophyll a, b, a+b, fruit Fe concentration, yield efficiency, apple.
 Materials Methods: In study, which conducted in 4 replications according to trial pattern chance blocks an apple orchard a lot lime alkaline reactions,...

A strain of Pewicillizi?tz freqzientans was successfully employed for partial degradation and characterization of humic acids. Salicyl alcohol and salicylalclehyde were detected i n culture filtrates of the fungus ~rtilizing humates under reduced oxygen tension. The enzyme systems iiivolved in the degradation of humic acids were adaptive. The humate-adapted lnyceliirln was capable of metabolizi...

BACKGROUND Despite the dramatic decrease in airborne lead over the past three decades, there are calls for regulatory limits on this potent pediatric neurotoxin lower even than the new (2008) US Environmental Protection Agency standard. To achieve further decreases in airborne lead, what sources would need to be decreased and what costs would ensue? Our aim was to identify and, if possible, qua...

Abstract Abiotic stresses are the most major limitation to crop production, causing yield losses up 50%, and consider challenges for production of crops. Thus, an experiment was conducted determine how sugar beet would respond soil application K-humate rates foliar biostimulants under salt stress. Split-plot design in three replicates used both seasons, where fertigation (control, 12, 24 kg ha ...