Soil Test Crop Response correlation studies under Integrated Plant Nutrition System (STCR-IPNS) were conducted for maize on Vertisol based on Inductive cum Targeted yield model at Southern Zone of Tamil Nadu during 2016-17. After the establishment of three different soil fertility gradients in the same experimental field, 24 treatments comprising different combinations of N, P2O5, K2O and FYM (four levels each of fertiliser N, P2O5 and K2O and three levels of FYM) were superimposed over the three fertility strips in a Fractional Factorial Design with the test crop maize (TNAU maize hybrid CO 6). | Soil test crop response based integrated plant nutrition system for maize on Vertisol
