மண்ணை அதிகமாக உழுவது மண்ணில் உள்ள நுண்ணுயிர்களைக் கொல்லும்.
** Detailed guide on chemical-free farming. nammalvar organic farming pdf in tamil verified
Dr. G. Nammalvar was a pioneering agricultural scientist whose teachings on natural farming (Iyarkai Velanmai) continue to shape organic practices in Tamil Nadu nammalvar organic farming pdf in tamil verified