Among the following is a example of biennial weed ?
Which of the following is a constituent element of chlorophyll ?
Seeds which cannot be successfully stored for long periods are known as
Example of C4 weed is
Estimates of National Income in India are annually prepared by:
The properties of Neem pesticides is generally referred to
Gully erosion is an advance stage of ?
According to Planning commission, Indian region is divided into how many agro climatic zones?
Spray of atrazine in low concentration acts as _______ type of antitranspirant.
Which of the following phosphatic fertilizer is suitable for acidic soils?