Department of Soil Science and Agricultural Chemistry, C.S. Azad University of Agriculture and Technology, Kanpur, 208.
Present address:1 Soil Survey Watershed, Department of Soil Conservation. Jodhpur, Rajasthan.
Wide variability in the availability of phosphorus and sulphur was observed in different soil associations of district Kanpur in Central Uttar Pradesh. Contents of available P ranged from 7.7 to 55.4 kg ha−1. About 49, 50 and 1 per cent soil samples showed, respectively, low, medium and high range of phosphorus availability. Correlation studies revealed that availability of phosphorus in all the soil associations, in general, was significantly and positively influenced by organic matter and finer soil particles (clay). Available S contents varied from 5.8 to 53.8 mg kg−1 in different soil associations. It was observed that about 41 and 59 per cent soil samples showed deficiency and sufficiency, respectively in S availability. In correlation studies S availability in all the soil associations was found significantly and positively affected by organic matter, CEC and finer soil particles (clay).
Inceptisols, availability of P & S, soil characteristics
