College of Agriculture G. B. Pant University of Agriculture and Technology, Pantnagar, Uttar Pradesh
In general, nutrient content in mango leaves was stable for 6–8, 4–6, and 4–5 months in I, II and III flushes, respectively. P, Mg, Mn, Zn, B, Ca, Fe, and Cu contents were high in I flush, whereas N and K levels were low. Mineral levels, in general, followed an intermediate trend in leaves of II flush. Age and flush both affected significantly mineral content of leaves and their effects were more conspicuous on I flush than that of II and III. Leaves of the first flush (6–8 months old) were most suitable for sampling in ‘on’ year. In ‘off’ year, 4–6 months old leaves of II flush were more suitable than that of III flush.
