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All publications of “Mohsin Zafar”

3 results

Isolation, Characterization and Symbiotic Efficiency of Nitrogen-Fixing and Heavy Metal-Tolerant Bacteria from a Coalmine Wasteland

Paulo Ademar Avelar Ferreira, Sabrina de Fatima Barbosa Dahmer, Tais Backes, Andressa de Oliveira Silveira, Rodrigo Josemar Seminoti Jacques, Mohsin Zafar, [...]

05/Sep/2018

ABSTRACT: Areas affected by coal mining can be recovered by revegetation with leguminous plants associated with nitrogen-fixing bacteria. This study addressed the isolation and characterization of native nitrogen-fixing bacteria from coalmine wasteland under different vegetation restoration approaches using Macroptilium atropurpureum (DC) Urb and Vicia sativa L. as trap plants. The bacteria were characterized and identified on the basis of 16S rRNA sequences. Additionally, nitrogen-fixing strains were characterized for tolerance to high heavy metal and low pH levels, as well as […]

Chemical, Biological, and Biochemical Parameters of the Soil P Cycle After Long-Term Pig Slurry Application in No-Tillage System

Tales Tiecher, Tadeu Luis Tiecher, Fábio Joel Kochem Mallmann, Mohsin Zafar, Carlos Alberto Ceretta, Cledimar Rogério Lourenzi, [...]

30/Oct/2017

ABSTRACT In Southern Brazil, agricultural soils are often treated over long periods with annual pig slurry (PS) applications, and their influence on soil nutrient dynamics should be monitored. This study aimed to evaluate the P forms accumulated in the soil and some biological and biochemical parameters of the P cycle after 19 successive PS applications over eight years, in a no-tillage (NT) system. Pig slurry was applied at rates of 0, 20, 40, and 80 m3 ha-1 per crop. Several […]

Animal manure phosphorus characterization by sequential chemical fractionation, release kinetics and 31P-NMR analysis

Tales Tiecher, Mohsin Zafar, Fábio Joel Kochem Mallmann, Edson Campanhola Bortoluzzi, Marcos Antonio Bender, Lucas Henrique Ciotti, [...]

01/Oct/2014

Phosphate release kinetics from manures are of global interest because sustainable plant nutrition with phosphate will be a major concern in the future. Although information on the bioavailability and chemical composition of P present in manure used as fertilizer are important to understand its dynamics in the soil, such studies are still scarce. Therefore, P extraction was evaluated in this study by sequential chemical fractionation, desorption with anion-cation exchange resin and 31P nuclear magnetic resonance (31P-NMR) spectroscopy to assess the […]