When sourcing low-EC coir for precision hydroponics, always request confirmation of whether the product is merely ‘washed’ or ‘calcium buffered’. Simple freshwater washing reduces free sodium and chloride, but displacement of potassium and sodium from cation exchange sites requires calcium nitrate buffering.
Current factory-gate pricing in the Pollachi belt for unbuffered washed low-EC blocks is approximately ₹180 to ₹230 per 5kg block, while calcium-buffered grades trade between ₹260 and ₹320.
Coir manufacturers and exporters: download Plant Finder from Google Play to upload your batch test reports and quote on this tender.