Effect of fertilization on the availability of nutrients in soil of mango orchard cv. Dashehari.
Singh K., Khan A.
Author Affiliation: Horticultural Experiment and Training Centre, Saharanpur 247?001, India.
Progressive Horticulture 23 : 93-96
Abstract : A nutritional study was carried out on 28-year-old mango trees (cv. Dashehari) during 1988/89. Major elements were supplied by soil application (1000 g N + 500 g P2O5 + 1000 g K2O/tree), by foliar application (0.6% N + 0.6% P2O5 + 1.0% K2O) or by a combination of soil and foliar application. Trace elements were supplied by soil application (250 or 500 g each of CuSO4, ZnSO4 and borax) or foliar application (0.2% or 0.4% CuSO4 and 0.4% or 0.8% each of ZnSO4 and borax). Major elements were applied with or without trace elements. Nutrients were applied to the soil in 2 equal split doses during Sep.-Oct. and Jan.-Feb. Foliar applications were made during Sep.-Oct. and at the pea stage of fruit growth. Trace elements were supplied one week after NPK application. Highest mean values of available soil nutrients were obtained with combined soil and foliar applications of NPK along with soil application of trace elements at the higher dose.