questions: asking for the preservation method of potato tubers to be sown after 7-8 months. 
 answers: suggested mr. borbhuyan to dip the selected tubers (to be sown) in a solution of 30 gram boric acid and 1 litre of water for 30 minutes. after that the tubers are to be thinly spread in shade. also suggested to examine the tuber seeds and to separate and throw away the rotten ones and whenever such cases are observed, advised to spary malathion 5 percent dust powder with the help of a sprayer for which 200 gram of malathion 5 percent dust powder is sufficient for 1 quintal of potato tubers.