Published Paper Details:

A lab study was conducted to fractionate the soil P and find the relationship of different P fraction with physicochemical properties of surface soil of Varanasi region (U.P.) in the laboratory of agricultural chemistry and soil science department Udai Pratap college Varanasi. Most of the soils were light textured Soils from seven different region were collected and analyzed for phosphorus (P) fraction. The soils were neutral to slight alkaline in nature. The electrical conductivity (EC) ranged from 1.46 to 3.50 dS/m. The bulk density varied from 1.18 to 1.46 Mg/m3. The organic carbon values ranged from 0.50 to o.75 %. The highest value was observed in DLW in surface soils .The distribution of the different forms of the phosphorus fraction was as Saloid-P (23.43 to 44.62 ppm), Al-P(10.75 to 20.02 ppm), Fe-P (6.96 to 13.4 ppm), Ca-P (80.97 to 115.78 ppm), reductant soluble-P (10.68 to 27.70 ppm), occluded-Al-Fe-P (13.02 to 26.75 ppm), organic-P (81.41 to 172.32ppm) with total phosphorus(270.75 to 383.84ppm) in different surface soils.The highest amount of Saloid -P, Ca-P, and lowest of Fe-P, Al-P, Organic-P. Among the different P fractions Ca-P was dominant fraction followed by saloid-P, reductant soluble-P, Al-P and Fe-P.