Phosphorus is the second important key element after nitrogen as a mineral nutrient in terms of quantitative plant requirement. Although abundant in soils, in both organic and inorganic forms, its availability is restricted as it occurs mostly in insoluble forms. The P content in average soil is about 0.05% (w/w) but only 0.1% of the total P is available to plant because of poor solubility and ...

Phytases (myo-inositol hexakisphosphate phosphohydrolases; EC 3.1.3.8) catalyze the hydrolysis of phytic acid (myoinositol hexakisphosphate) to the mono-, di-, tri-, tetra-, and pentaphosphates of myo-inositol and inorganic phosphate. Therrmophilic bacteria isolated from water sampled from hot spring. About 120 isolates of bacteria were successfully isolated form hot spring water sample and tes...

Phytate-degrading microorganisms with the ability to solubilize inorganic soil phosphates can serve as basis of bio-fertilizer. Four lowcost liquid compositions were examined for viability Pantoea brenneri strains 3.2 and 3.5.2 stored at room temperature 4°C six months. By end experiment, highest cell survival rate both P. 4°С 25°С was ensured by a LB broth supplemented glycerol. Moreover, main...

Background and Objectives Alkaline pH of the soil facilitates the conversion of phosphate present in phosphate fertilizer applied in the field to insoluble phosphate which is not available to plants. Problem of soluble phosphate deficiency arises, primarily due to needless use of phosphate fertilizer. We sought to biofertilizer with the thermo-tolerant phosphate solubilizing actinomycetes conso...

The objective of this study was to evaluate possible effects mineral fertilizer (NPK), one commercial and three N2-fixing, P-solubilizing and/or ACC deaminase-containing bacteria based bio-fertilizers in triple strains combinations (BF9: Bacillus megaterium 47/9+ Paenibacillus macquariensis RC696 + Pseudomonas fluorescens 9/7; BF10: RC665+ RC382 BF11: simplex RC64 putida 3/10 Burkholderia pyrro...

Two field experiments were conductedunder surface irrigation system during two successive winter growing seasons 2017/2018 and 2018/2019in private farm atEl Qantra-West, Ismailia Governorate,Egyptto evaluate the effect of combinations three levels phosphorus fertilizer (0, 15.5 31.0 kg P