Vol. 12, Special Issue 12 (2023)

Author(s):
Shinde NS, Kasture MC, More SS, Mahajan GR Chavan AR and Sawant MS

Abstract:
The present investigation was consisted collection of 500 leaf samples from five different mango orchards located in Dapoli Tahsil, of Ratnagiri district, during June 2023. All leaf samples were processed and analysed for the macro as well as micronutrient status, to study the variability of nutritional status of leaves of the selected mango. The variability observed in all orchards undertaken in this investigation was from 0.37 to 0.60 per cent in nitrogen. On an average, all selected five locations recorded 0.05 per cent P in leaves, which was found to be deficient. The average total potassium content ranged from 0.63 to 0.46. The potassium content in mango leaf sample were found to be low. The variation within the trees varied from 1.27 to 1.38 per cent of calcium in mango leaves. Optimum content of total Ca was found. The Magnesium content in leaves ranged from 0.39 to 0.58 per cent; which was noticed ‘low to optimum’. The Sulphur content in mango leaves recorded large variation within trees in all orchards. Average mean content of total sulphur varied from 0.06 to 0.14 per cent. The average iron content varied from 220.81 to 323.95 µg g^-1 in all orchards, which was found to be deficient. The large variation of average total manganese content was observed i.e. 273.98 to 658.44 µg g^-1 within orchards. The mango orchards showed ‘optimum to excessive’ content of total manganese in mango leaves. On an average, the high zinc content was varied from 21.24 to 16.86µg g^-1, and showed ‘optimum to high’ content of total zinc in mango leaves. The average copper content varied from 6.09 to 30.50 µg g^-1 within orchards. Status of total Cu was found to be ‘excessive’. The total Boron average range ranged from 21.99 to 35.67 in all the selected five orchard. It was observed that boron content in mango leaves showed large variation in all orchards.