Assessment of various land use systems on soil potassium fractions and soil properties under lesser Himalayas
Author(s):
Aanisa Manzoor Shah, Shaista Nazir, Tajamul Islam Shah, Inayat Mustafa Khan, Aziz MA, AP Rai, Yasir Hanif Mir, Abid Hussain Dar, Suhail Nazir Bhat, Azrah, Mehvish Mansoor, Mir Shareen Mehraj, Raieesa, Tsering Dolker and Fehim Jeelani Wani
Abstract:
Potassium fractions serve as chemical markers of potassium stocks, furnishing capacity and their accessibility in soils. However, the allocation of various potassium fractions differs in response to fluctuations in land use and management practices. Therefore, the knowledge pertaining to potassium contribution from different pools in response to land use pattern grabs a prime importance for assessing the soil fertility status along with the provision of better interpretation in near future. The current study was performed to assess the distribution of different forms of soil potassium under different land uses of temperate lesser Himalayas during the year 2019-20. Surface samples (0 - 20 cm) were collected from different land uses of district Kupwara except for the horticultural land use from which both surface (0 - 20 cm) as well as sub-surface samples (20 - 40 cm) were taken. The results revealed that water soluble potassium ranged from 0.02 to 0.06 cmolc kg-1, available potassium from 0.09 - 0.44 cmolc kg-1 and exchangeable potassium from 0.07-0.34 cmolc kg-1. Non-exchangeable potassium was noted to vary from 1.54-4.22 cmolc kg-1, boiling nitrate extractable potassium from 1.63-4.66 cmolc kg-1 lattice potassium from 26.43-37.71 cmolc kg-1 while that of total potassium was observed to range from 28.05 - 42.36 cmolc kg-1. The magnitude of determined potassium forms was noted to be highest for agriculture irrigated soils followed by pasture soils and lowest in wasteland soils. A significant and positive correlation was observed among different potassium fractions.
How to cite this article:
Aanisa Manzoor Shah, Shaista Nazir, Tajamul Islam Shah, Inayat Mustafa Khan, Aziz MA, AP Rai, Yasir Hanif Mir, Abid Hussain Dar, Suhail Nazir Bhat, Azrah, Mehvish Mansoor, Mir Shareen Mehraj, Raieesa, Tsering Dolker, Fehim Jeelani Wani. Assessment of various land use systems on soil potassium fractions and soil properties under lesser Himalayas. Pharma Innovation 2022;11(6):914-919.