Chromium is commonly present in the surroundings as a result of its natural occurrence, human activities from industries and agriculture [1]. Most industrial processes produce metals as byproduct in the ecosystem, and these may end-up in tissues of bird species existing in such natural ecosystems [2]. In most cases, the concentration may be higher than the permissible limit in avian species. Ch...

A pilot-scale field demonstration was conducted at a Pb-contaminated site to assess the effectiveness of Pb immobilization using P amendments. The test site was contaminated by past battery recycling activities, with average soil Pb concentration of 1.16%. Phosphate amendments were applied at a 4.0 molar ratio of P/Pb with three treatments: T1, 100% P from H(3)PO(4); T2, 50% from H(3)PO(4)+50% ...

A greenhouse pot experiment was conducted to evaluate the effect of phosphorous (P) fertilizers application to an alkaline calcareous soil on the water use efficiency (WUE) of lettuce cultivar "robinson" of iceberg type. Head fresh and dry weights, total water applied and WUE were affected significantly by the P fertilizer type and rate. P fertilizers addition induced a significant enhancement ...

Direct Counting 45 Procedure 1: DAPI Cell Count: Sandy Sediment 46 Rock MPN 47 SEM Surface Counts 48 Quantitative FISH 48 Procedure 2: Sample Collection and Preservation for FISH 50 Procedure 3: Slide Preparation and Cell Fixation for FISH 50 Procedure 4: Hybridization 51 Procedure 5: Post-hybridization 52 Procedure 6: Examination and Quantification 53 Chemical Biomass 53 Procedure 7: Lipid Pho...

The effects of a superphosphate (SP) and a rock phosphate (RP), with equal total P contents, on the growth and mineral nutrition responses of mycorrhizal and nonmycorrhizal cowpea, pigeon pea and groundnut were investigated in a pot experiment using an air-dry gamma ray-sterilized (1.5Mrad) Andisol subsoil. Adequate amounts of micronutrients were added to the pot soils as supplements. The plant...

The efficiency of soil organic carbon (SOC) sequestration as a suitable negative emission technology depends mainly on plant-derived input and its allocation to stabilised SOC pools. These processes may be affected by fertiliser use type. purpose this study was investigate the effect (poultry manure compost), mineral (rock phosphate) their mixture (OC) transfer from plant soil. We studied OC pr...

Ancient black shales have considerable potential for generation of long, high-resolution paleoclimate proxy records, given the availability of a geochemical proxy that can be easily measured. Owing to substantial differences in density between the siliciclastic matrix of black shales (2.6-2.7 g cm-) and the major non-clastic components, i.e., organic carbon, Fe-sulfide, and phosphate (ca. 1.0-1...

Microorganisms with the ability to release nutrients to the soil from insoluble sources may be useful for plant cultivation. We evaluated the growth-promoting effect on Jatropha curcas L. of phosphate-solubilizing bacteria (PSB) and the native microbiota in soil with or without rock dust. J. curcas L. is important for biodiesel production. The experiments were performed in a greenhouse under a ...

The immobilization and mineralization processes carried out by soil microorganisms have a significant role in controlling the availability of phosphorus soil. A class helpful known as phosphate solubilizing microbes are able to hydrolyze insoluble organic inorganic compounds into soluble P (phosphorus) form that is readily taken plants. objective this study was evaluate different waste Aspergil...

The 'phosphorus problem' has recently received strong interest with two distinct strands of importance. The first is that too much phosphorus (P) is entering into waste water, creating a significant economic and ecological problem. Secondly, while agricultural demand for phosphate fertilizer is increasing to maintain crop yields, rock phosphate reserves are rapidly declining. Unravelling the me...