Studies on the continuous use of N, P and K in Dashehari cv. of mango. II. Effect on foliar nutrients status.
Malhi C. S., Raghbir Singh, Gian Singh, Dhillon W. S.
Author Affiliation: Department of Horticulture, Punjab Agricultural University, Ludhiana 141?004, India.
Punjab Horticultural Journal 28 : 40-43
Abstract : Nutritional experiments were started in 1971 on trees planted in 1968. N was applied at 100, 200 and 300 g, P2O5 at 43.7 and 87.4 g and K2O at 83.0 and 166.0 g per year of tree age, stabilizing the applications at 10 years of tree age. Leaf samples were taken during full bloom from non-bearing shoots and the N, P and K contents were determined. The data are tabulated. Leaf N, P and K contents increased with corresponding increases in N, P or K rates, but, in the case of N, this occurred only up to a rate of 200 g/tree.