The primary nutrients are nitrogen, phosphorus and potassium.
You may be most familiar with these three nutrients because they are required in larger quantities than other nutrients. These three elements form the basis of the N-P-K label on commercial fertilizer bags.
With daily cases of Covid-19 having crossed the 1,700 mark after a gap of three-and-a-half months, the National Command and Operation Centre (NCOC) on November 11, 2020 suggested an early and extended winter vacations to prevent the spread of the deadly virus and ensure safety and health of students.
It also recommended banning all public gatherings, including political, cultural and religious ones, of more than 500 people.