Mycorrhiza VAM fails mostly because of timing, fungicide clashes, excess phosphorus and flooded soil — not a bad product. Six causes and a 3-week check.

Drip-applying liquid biofertilizer: 1 L/acre NPK Consortia (about ₹94) or 2–3 L/acre Mycorrhiza VAM Liquid (₹232–348) in 200 L water, injected after wetting the soil and flushed afterwards.

The short answer: apply 2 litres of liquid biofertilizer per acre through drip, in 200 litres of non-chlorinated water, in the evening or early morning — and never within 7 days of a soil-applied fungicide. This guide gives the exact fertigation dose, schedule and the five mistakes that destroy live microbes before they reach the root zone.