Effect of nano urea on growth and yield of okra (Abelmoschus esculentus L.)

Abstract

The field experiment was conducted in ZAHRS, Navile, Shivamogga to study the “Effect of nano urea on growth and yield of okra (Abelmoschus esculentus L.)” during kharif 2021.The experiment was laid out in RCBD with eight treatments replicated thrice. Treatments include combination of various levels of urea and nano urea (at different intervals viz., 10, 20, 30 and 40 DAS) and package of practices. Among the treatments tested, 50 per cent of recommended N as basal + 25 per cent of N as top dress at 30 DAS and one spray of nano urea at 40 DAS (T7) recorded highest plant height (155.30 cm), plant girth (5.74 cm), number of branches (3.38) and number of leaves (13.47). Better values of these indices results in significantly higher yield parameters like number of fruits (18.43 plant-1), fruit length (19.63 cm), fruit girth (6.81 cm) and fruit yield (17.89 t ha-1) in the same treatment, which was on par with package of practices. There was a 9.88 per cent increase in yield over package of practices. Further, higher net returns (₹ 2,92,652) and B:C ratio (2.89) were also noticed in treatment T7.