Vol. 10, Issue 9 (2021)

Author(s):
Shailja Kumari, Gopal Kumar, Ragini Kumari, Varsha Kumari, Priyanka Kumari, Rahul Raj and Rajeev Padbhushan

Abstract:
A field experiment was conducted during kharif, 2019 in Bihar Agricultural University, Sabour, Bhagalpur to study the effect of different approaches of fertilizer application on chemical properties of soil under rice based cropping system. Nine treatment were included in this experiment which comprised of control (without fertilizer application), farmers’ practice, general recommended dose, soil test based yield targets 30, 40 and 50 quintal/ha replicated thrice in a randomized block design (RBD). The results revealed that Soil Test Crop Response (STCR) based fertilizer application significantly increased the available nitrogen (N), phosphorus (P), potassium (K) in soil as compared to other treatments without STCR. Although, the values of soil pH, EC and organic carbon (OC) was not significantly affected in comparison to its initial value with respect to different treatments. The content of available N, P and K statistically varied in the order; STCR with IPNS for high target yield> STCR without IPNS for high target yield> STCR with IPNS for medium target yield> STCR without IPNS for medium target yield> STCR with IPNS for low target yield> STCR without IPNS for low target yield> General fertilizer recommendation> Farmers’ practice> Absolute control.