Vol. 11, Issue 11 (2022)

To evaluate the effect of soil application of organic nano NPK formulation on soil and plant nutrient status and growth parameters in banana cv. Nendran, a field experiment was laid out in the Instructional Farm of College of Agriculture, Vellayani, Thiruvananthapuram from December 2020 to November 2021 in RBD with eight treatments and three replications. The treatments were T₁ (15 g nano NPK in 2 splits), T₂ (15 g nano NPK in 6 splits), T₃ (30 g nano NPK in 2 splits), T₄ (30 g nano NPK in 6 splits) T₅ (45 g nano NPK in 2 splits), T₆ (45 g nano NPK in 6 splits), T₇ (soil test-based Package of Practices (POP) recommendation of KAU) and T₈ was ‘control’. The study revealed that the application of 45 g granular organic nano NPK in 6 splits along with 10 kg FYM and 100 g lime per plant per year (T₆) increased the total number of functional leaves, soil organic carbon and dehydrogenase activity and enhanced the soil nutrient status and improved the nutrient uptake by the plants.