Ecology, Environment and Conservation Paper

DYNAMICS OF POTASSIUM IN REPRESENTATIVE SOIL SERIES OF NAVSARI DISTRICT OF SOUTH GUJARAT

Narendra Singh, Sonal Tripathi, Ampee Tsuang, Patel G. G. and Rajkishore Kumar

Abstract

The present study on “Dynamics of potassium in representative soil series of Navsari district of SouthGujarat” was carried out during the year 2013. Five locations are randomly selected from each series and from each location, two samples, i.e. 0-15cm and 15-30cm are collected. Thus, total 120 numbers of soil samples were collected separately from soil series of Navsari district. The results revealed that various forms of k, viz., water soluble potassium, available K, exchangeable K, non-exchangeable K, Total K and mineral K of Navsari district varying from 0.026 to 0.064 cmol/kg, 0.16– 0.43 cmol/kg, 0.39 -1.11cmol/kg, 0.69 – 1.33 cmol/kg, 18.96–29.54 cmol/kg and 17.25 – 27.70 cmol/kg, respectively in surface layer (0-15 cm) while 0.02 to 0.055 cmol/kg, 0.25 - 0.83 cmol/kg, 0.21 - 0.78 cmol/kg, 0.65 – 1.34 cmol/kg, 20.33 – 31.30 cmol/kg and 19.02–29.78 cmol/kg (15-30 cm), respectively in sub-surface layer. The results also revealed that the available K showed positively significant relationship (0.998) with exchangeable K. Total K positively significant with mineral K in 0-15 cm, while in 15-30 cm, the available K showed significantly and positively correlated (0.998) with exchangeable K.