INFLUENCE OF FERTIGATION AND FOLIAR SPRAYS ON YIELD, NUTRIENT CONTENT OF LEAF, FRUIT AND SOIL AND ECONOMICS OF CULTIVATION OF PAPAYA VARIETY SURYAKarishma Sebastian, Bindu B. and Dhanalakshmi V.N.Abstract A field experiment was conducted during the period 2018 â 2020 at Instructional Farm, College of Agriculture, Vellayani, Thiruvananthapuram to investigate the response of fertigation and foliar spray on yield, nutrient content of leaf, fruit and soil and economics of cultivation of papaya variety Surya. The experiment was laid out in randomised block design with combination of four fertigation doses of 75%, 100%, 125% and 150% RDF of N and K and three foliar sprays (1%19:19:19, 0.5%ZnSO4 + 0.3% borax and water spray) which where compared with soil application of recommended dose of NPK (control 1) and soil application of NPK plant-1 year-1 based on soil test data as organic manures as combination of FYM, poultry manure and vermicompost in the ratio of 2:1:1(control 2). The findings of the study revealed that 100 % recommended dose of N and K (406.52 g urea plant-¹ year-¹ and 568.33 g plant-¹ year-¹ respectively) through weekly Fertigation from one to 20 months after planting and foliar sprays of 1.0% 19:19:19 at bimonthly interval starting from 4 MAP to 16 MAP, along with basal application of 850g rock phosphate and 15 kg FYM resulted in increased yield with highest B: C ratio in papaya variety Surya. |