Effect of multiple nutrient sprays on quality and yield of apple under mountainous regions of Kashmir

Abstract

The present investigation aimed at evaluating the importance of multi nutrient sprays Viz the Bio-efficacy of Cytonutri CaB as a multi nutrient spray and Aura XL as organic product. The sprays were used on apple cv. Red Delicious for a period of two years at farmers field in district Shopian during 2016 and 2017. Healthy trees of uniform age (25 years) were selected. Cultural practices and plant protection measures were uniform for all the selected trees, irrespective of treatments. On each tree four branches from four sides were marked, for different flower and fruit observation measures. The experimental design was RBD with four replications in each treatment. T1 comprised of Cytonutri CaB spray @1.5ml/litre at fruit set, 15DAFS and 30 DAFS. in T2 the concentration was raised to 3ml/litre and was again sprayed at fruit set, 15 DAFS and 30 DAFS. While as T3 comprised of five sprays with first spray of Aura XL(1ml) at Prebloom, 2nd spray of Cytonutri CaB +Aura XL (1.5 ml+ 1ml) at fruit set, 3rd and 4th spray of Cytonutri CaB at 15 and 30 DAFS @1.5nl/litre and 5th spray of Aura XL @1ml/Litre at fruit color change. The results revealed that spraying apple trees with the Cytonutri CaB and Aura Xl individually or in combination had significant impact on increasing bloom density, fruit set, yield fruit, size and s had positive impact on reducing flower drop and fruit drop. However, it could be concluded that promising Treatment is cytonutri Ca B along with low concentration Of Aura XL.