Question

there are three glass a,b and c with same amount of soil and planted same sized seedlings.they added cow dung on glass a,little urea in glass b and nothing in glass c.after one weak I found that glass b has shown more growth that glass a and c .give reasons

Answer 1

as the cow dung is a natural fertilizer hence it lacks many important nutrients required for plant growth which cannot be synthesized through plants and hence urea contains all the required important nutrients necessary for plant growth as it is synthesized in Labs