Distribution of different forms of potassium and sulphur in soil of Bansdih block of Ballia district (U.P.)

Abstract

Two pedons were exposed in the Bankawa and Sheria village for study of depth wise distribution of fraction of potassium and sulphur. The NH4OAc extractable K content was found 548 kg/ha in surface horizon. The 0.01 M CaCl2 extractable K was observed minimum value 126.6 kg/ha in pedon 1 in 135- 150 cm depth of soil and showed decreasing trend with increasing depth in both pedon. EDTA extractable K was observed minimum value 278.2 kg/ha in depth of 135-150 cm of pedon 2.Water soluble extractable K was found maximum value 324.8 kg/ha in surface soil in pedon 2. The HNO3 extractable K was observed maximum value 353.4 kg/ha in 135-150 cm of pedon 2. Mehlich III extractable K was found maximum 347.2 kg/ha in surface soil of pedon 2. CaCl2 extractable S was found in maximum value 6.25 mg/kg in surface soil of pedon 1. Sulphur extractants viz. HNO3 extractable S was found minimum value 1.25 mg/kg in 135-150 cm of pedon 1. KCl extractable S was observed maximum 6.62 mg/kg in surface soil of pedon 2. HCl extractable S was observed minimum value 5.53 mg/kg in 135-150 cm. Morgan’s reagent extractable S was found greater value 7.2 mg/kg in surface soil of pedon 2, respectively. The soil pH of village was ranged from 6.4 to 7.7 in both pedon, EC of soils was found with no variation in horizon depth and it has ranged from 1.006 to 0.884 dSm-1. The amount organic carbon content in different depth was ranged from 0.24 % to 0.91% in both village and pedon.