Using the isotope dilution P technique, a study was conducted to evaluate the P uptake and growth improvement of aerobic rice genotype (M9) inoculated with phosphate-solubilizing bacteria (PSB16, Bacillus sp.) and applied with Christmas Island Phosphate Rock (CIPR), and oxalic acid (OA). An absence of PSB and OA was considered as control treatment. The inoculation of PSB16 strain and OA applica...

Aim: The aim of the present study was to examine different forms sulphur fractions in post- harvest soil cabbage crop determine S status red sandy loam soil, Thondamuthur block, Coimbatore district.
 Study Design: design used Factorial randomized block with 20 treatments replicated thrice.
 Place and Duration Study: A field experiment carried out a farmer’s non-calcareous deficient wh...

Returning straw to the field is an effective method for optimizing soil phosphorus (P) availability, in which bacteria play important role. However, effects of various incorporation strategies on P transformation between different pools remain unclear. In this study, variations fractions, phosphatase activities and abundance genes (phoD, phoX phoC) as well a P-solubilizing gene (pqqC) at DNA (t...

This was assessed by determining NaHCO3–extractable inorganic and organic P in a range of temperate pasture Soil is commonly stored in an air-dried state for extended periods soils extracted immediately after air drying and followbefore chemical analysis. The effect of storage on P solubility was assessed ing air-dry storage for 3 yr at ambient laboratory temperaby determining NaHCO3–extractabl...

Soil physicochemical properties, soil microbial biomass and bacterial community structures in a rice-wheat cropping system subjected to different fertilizer regimes were investigated in two seasons (June and October). All fertilizer regimes increased the soil microbial biomass carbon and nitrogen. Both fertilizer regime and time had a significant effect on soil physicochemical properties and ba...

An 'anomalous' negative flux, in which carbon dioxide (CO2) enters rather than is released from the ground, was studied in a saline/alkaline soil. Soil sterilization disclosed an inorganic process of CO2 dissolution into (during the night) and out of (during the day) the soil solution, driven by variation in soil temperature. Experimental and modeling analysis revealed that pH and soil moisture...

Northwestern Alaska has been warming (0.3°C/yr) since the early 1990s. Ecotonal (treeline) Arctic ecosystems are expected to exhibit the effects of climate change earliest. High-latitude terrestrial ecosystems contain from 30 to 45 percent of the global organic-C pool. Soil warming may enhance release of CO2 and CH4, soil N mineralization, and the production and export of dissolved organic C an...