Phosphorus toxicity found in Kozhikode, Wayanad soils

Studies carried out by a team of scientists at the Indian Institute of Spices Research (IISR) have revealed high levels of phosphorus in the soil samples from Kozhikode and Wayanad districts.

Overuse of chemical fertilisers and neglect towards soil test-based fertiliser recommendations have resulted in imbalances in the nutrient levels of the soils, according to IISR.

The initial findings of the research projects on soil-based nutrient management plans for agro ecosystems of Kerala and ‘Sugandhi' – Technology Mission on Black Pepper for Wayanad – sponsored by the State Department of Agriculture, have shown alarming rise of phosphorus levels in soils from Wayanad district.

As much as 62 per cent of the total samples collected from Thirunelli panchayat in the district showed phosphorus content of 40 kg/ hectare, while the optimum range is 10-25 kg per hectare

More disturbingly, 35 per cent of the samples had a phosphorus level of more than 100 kg per hectare.

Similar results have been observed in the more than 5,000 soil samples collected from 17 panchayats in Kozhikode district...............Read More


Source: Business Line

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