Abstract
Journal of Food and Agriculture is a half yearly publication by the Faculty of Agriculture and Plantation Management and Faculty of Livestock fisheries and Nutrition of the Wayamba University of Sri Lanka which provides a valuable forum for scientists endeavoring in research and development aspects in agriculture, food and nutrition. Full text articles available.
Highlights
Phosphorus (P) is known to be a major macronutrient having a defined role in the growth and development of plants (Awasthi et al, 2011)
A certain portion of the applied phosphorus fertilizers is immobilized into insoluble forms with Al or Fe in acid soils or with Ca in calcareous soils
A total of 15 bacterial isolates (PSB-1 to phosphate solubilizing bacteria (PSB)-15) that exhibited clear zones around the colony after 3 days of incubation were selected as phosphatesolubilizing organisms
Summary
Phosphorus (P) is known to be a major macronutrient having a defined role in the growth and development of plants (Awasthi et al, 2011). A certain portion of the applied phosphorus fertilizers is immobilized into insoluble forms with Al or Fe in acid soils or with Ca in calcareous soils Phosphorus-solubilizing activity is considered to be the most important among the multiple properties of the soil microorganisms that promote plant growth and nutrient absorption. They enhance plant growth via synthesis of phytohormones such as auxins (Jeon et al, 2003; Egamberdiyeva, 2005), cytokinins (Gracia de Salamone et al, 2001), and gibberellins (Gutierrez-Manero et al, 2001) or other growth-promoting or protecting substances like siderophores (Wani et al, 2007), hydrogen cyanide (Kang et al, 2010), enzymes and/or fungicidal compounds such as chitinase, cellulose, protease (Dey et al, 2004; Lucy et al, 2004; Hamdali et al, 2008) which ensure antagonism against phytopathogenic microorganisms. Chamikara (2019) isolated Pseudomonas aeruginosa, Achromobacter xylosoxidans and Pseudomonas fluorescens, Bacillus subtilis respectively from Aloe vera and mung bean cultivated soils in Sri Lanka
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