Acid sulphate soils, rich in iron sulfides such as pyrite (FeS₂), are highly acidic soils that severely limit agricultural productivity due to low pH, aluminium and iron toxicity, nutrient imbalances, and poor fertility. In Kerala’s Kuttanad region, these soils pose major constra...
Open access
Research Article10.9734/ijecc/2025/v15i105087
Acid sulphate soils of Kerala are characterized by extreme acidity and toxic concentrations of aluminium (Al³⁺) and iron (Fe²⁺/Fe³⁺), which severely restrict crop growth and productivity. A laboratory incubation was undertaken to evaluate the efficiency of organopolymer and silic...
Open access
Research Article10.9734/ijpss/2025/v37i105804
The experiment was carried out in the Department of Soil Science and Agricultural Chemistry at the College of Agriculture, Vellayani, Kerala, from January to May 2024. Slow release fertilizer formulations (SRF) containing all the major (N, P,K), secondary (Ca, Mg, S) and micronut...
Open access
Research Article10.9734/ijpss/2024/v36i115142
Intensified cultivation linked with over application of chemical fertilizers and increasing human activities have been linked to enhanced CO2 emissions, decreasing soil fertility, increasing soil degradation and declining productivity of crops. However, humic substances comprisin...
Open access
Research Article10.9734/ijecc/2025/v15i105070