Agriculture officials have advised farmers to cover their Boro seedbeds with polythene during night-time as sudden cold weather may cause harm to their saplings.
According to a weather forecast, temperature may drop below 10 degrees Celsius in some regions of the country in the next two to three days.
Agriculturists said this may be harmful for Boro seedbeds.
"The present temperature is congenial for onion and vegetable cultivation. But crops may be harmed if temperature comes down to 2-3 degree Celsius and lasts for 24 hours," said Chandi Das Kundu, director (field services wing) of the Department of Agricultural Extension.
According to the Agri Portal of the Department of Agricultural Extension, impending extreme cold in the next few days may impede the normal growth of saplings.
Boro saplings can be protected from receiving cold injuries if seedbeds are covered with polythene especially at night.