Free living nitrogen fixing bacteria can bring about saving of nitrogen fertilizer to the tune of
$10 -25 kg/ha$
$30 -50 kg/ha$
$20 -30 kg/ha$
$50 -60 kg/ha$
$BHC $ and $DDT $ belong to which class of pesticides
The nutritive medium for growing bacteria and many fungi in the laboratory is called
Which pesticides are lipophilic
Most common pesticides used in the crops are
Stramonium is a drug obtained from the plant species of