The Editorial page article, “Stirring up the truth about ZBNF” (October 9), is a reminder of flawed agricultural practices in India. Zero Budget Natural Farming won praise initially on a number of counts but it is clear now that its pillars — Bijamrit, Jivamrit, Mulching and Waaphasa — have still to pass the test of their effects on yields. The use of cow dung and cow urine which the government appears intent on promoting have their limitations. There needs to be a proper scientific study of the ZBNF.
Sachin Prince,
New Delhi
