Niharika Gurudev, Arvind Kumar, Satya Prakash, Shubham Yadav, Dharmendra Kumar, Abhishek Sonkar and Geetanjali
Abstract
An experiment was carried out during 2023-24 and 2024-25 at the Horticultural Research Centre, Sardar Vallabhbhai Patel University of Agriculture and Technology, Meerut (U.P.), India. Six-year old, healthy, and uniformly grown Kinnow mandarin plants spaced at 6 Ã 6 m were selected for the experiment. The experiment was laid out in a Randomized Block Design (RBD) consisting of sixteen integrated nutrient management treatments replicated three times. The treatments included organic manures (FYM & Vermicompost) along with inorganic fertilizers and biofertilizers (Azotobacter & PSB). The results showed significant variation among treatments for fruit yield, estimated yield (q/ha), and benefit-cost (B:C) ratio. The treatment T13 (80% RDN + 25kg FYM + 20% N from vermicompost + 75g PSB/plant) recorded the highest fruit yield (29.17 kg/plant), estimated yield (81.03 q/ha), whereas treatment T2 (60% RDF + 25kg FYM) produced the lowest fruit yield (17.68 kg/plant), estimated yield (49.11 q/ha). Maximum benefit âcost ratio (4.00) was obtained under treatment T8 (80% RDN + 25kg FYM + 20% N from vermicompost + 50g Azotobacter/plant), whereas minimum (2.77) was obtained under treatment T5 (40% RDN + 25kg FYM +60% N from Vermicompost).