Soil Potassium Changes at Different Altitudes and Seasons in Upper Yamuna Forests of Garhwal Himalayas

A study was conducted in Yamuna Forest Division of Garhwal Himalayas to determine the potassium status in the soils of different altitudes and seasons, and establish their correlation. The results showed general decrease in potassium down the soil profile with respect to altitude and seasons but increased with higher altitude. The seasonal effect showed higher values in autumn than spring. Total and available potassium showed highly significant positive correlation at all the altitudes and seasons and significant negative correlation with soil depth. In general, the soils at different altitudes are well supplied with potassium.