The formula Y T Yn Tn where PI =Agriculture Productivity Index; Y= Total production of selected crops in unit Area; Yn= Total production of same selected crops at national level; T=Total cropped area of the unit; Tn = Total cropped area at national scale. Who applied this formula for measuring agricultural productivity levels?

1750+ questions from past NET Geography papers.

UGC NET or NTA-UGC-NET, is the examination for determining the eligibility for the post of assistant professor and/or Junior Research Fellowship award in Indian universities and colleges.