Response of micro-nutrient on yield of Aonla (Emblica officinalis Gaertn) cv. Narendra aonla-6

The present investigation entitled on “Response of micro-nutrient on yield of Aonla (Emblica officinalis Gaertn) cv. Narendra Aonla-6” was carried out at the Main Experiment Station Department of Horticulture NDUAT, Kumarganj-Faizabad (U.P.) during the year 2014-15. The experiment was conducted with seven treatments and replicated thrice consisting of various levels of nutrients ZnSO4 (0.5%), CuSO4 (0.4%), MnSO4 (0.5%), ZnSO4 (0.5%) + CuSO4 (0.4%), CuSO4 (0.4%) + MnSO4 (0.5%), ZnSO4 (0.5%) + MnSO4 (0.5%) and control (Water spray) in RBD Randomized Block Design. The foliar applications of these nutrients were applied two times after fruit set in the month of mid June and mid July. The observations were recorded on per cent fruit drop, fruit retention, fruit size, fruit weight, pulp: stone ratio and fruit quality at different stages of fruit development. The minimum (73.47%) of fruit drop and maximum (26.53%) of fruit retention (was recorded with ZnSO4 (0.5%) + CuSO4. Significant increase in fruit size, fruit weight, pulp: stone ratio was also recorded with the foliar application of ZnSO4 (0.5%) + CuSO4 (0.4%) as compared to other treatments. The maximum fruit yield (73.03 kg/tree).