Consider the following 1. Birds 2. Dust blowing 3. Rain 4. Wind blowing Which of the above spread plant diseases?

Which of the following is a Kharif crop?

Which of the following is a potassic fertilizer?

Consider the following statements with reference to manure and organic farming: 1. Vermicompost is rich in organic matter and nutrients. 2. Biofertilizers and bio-pesticides are not used in organic f…

Which one of the following statements about fertilizers is not correct?

Which one of the following is not a nitrogen fertilizer?