Studies on the impact of soil application of biofertilizers on growth and yield of Kinnow mandarin

Abstract

A field study was conducted to see the effect of soil application of biofertilizers on growth and yield of Kinnow mandarin on 10 year old plants. Azotobacter chroococcum Mac 27, Azotobacter chroococcum HT 54 and Pseudomonas P36 were used alone and in combination at two RDF (recommended dose of fertilizers) levels i.e. 75% and 100%. Maximum plant height, spread, flowers per twig, initial fruit set, number of fruits and yield were obtained with soil application of Azotobacter chroococcum Mac 27 + Pseudomonas P36 applied with 100% RDF, however, average fruit weight was not significantly affected. The treatment significantly reduced fruit drop.