Vol. 11, Special Issue 8 (2022)

Author(s):
Purandhar E, Sreelatha AK and Anil Kumar KS and Nideesh P

Abstract:
The present investigation was carried out in lowland soil profiles (Kole, Kaipad and Mangroves) in north Kerala. In this study, we excavated three soil profiles in the selected lowlands to assess the macronutrient status. To study the soil macronutrient status, three pedons from (Kole, Kaipad and Mangroves) of AEU 6 and AEU 7 of north Kerala were determined. The soils were extremely acidic to strongly alkaline in reaction with pH ranging from 3.94 to 5.55 and surface horizons of Kaipad lowlands (13 dS m^-1) have noticed high EC values. The organic carbon content of soils varied from 2.78 to 3.77per cent. The clay distribution, cation exchange capacity and base saturation of the soils ranged from 35.79 to 47.04 per cent, 15.81 to21.22 cmol (p+) kg^-1 and 93 to 100 per cent respectively. Calcium and Magnesium ranging 487.00 to 1329.00 cmol (p+) kg^-1, 237.00 to 925.00 cmol (p+) kg^-1 and 189.16 to 821.35 ppm of S respectively. The macronutrient status of the soil samples indicated that the available nitrogen content was high in all the pedons and also high in available phosphorus, and available potassium, Ex. Calcium and Ex. Magnesium and sufficient with respect to sulphur.