Vol. 10, Issue 6 (2021)

Author(s):
Nidhi Luthra and Ajaya Srivastava

Abstract:
A Field experiment was conducted on wheat crop at N.E. Borlaug Crop Research Centre, G.B.U.A.&T, Pantnagar during the year 2017-18 to asssess the effect of soil fertility gradient on crop yield and soil fertility. The experiment field was divided into three equal strips and three graded levels of nitrogen, phosphorus and potassium fertilizers were applied as N0P0K0, N100P100K100 and N200P200K200 in strip I, strip II and strip III, respectively. Urea, Single super phosphate and murate of potash were used as the source of nutrients. Exhaust crop wheat was cultivated and recommended agronomic practices were followed and harvested at maturity. Grain and straw yield were recorded after harvesting the crop. Soil samples were taken before and after the harvest of the crop from the surface layer and analyzed for available N, available P and available K. Wide variation in wheat yield and soil fertility was recorded among the strips which established the impact of graded levels of fertilizer application on these parameters and creation of soil fertility gradient.