Productivity of the Colchis variety tea plants in the conditions of Russian Black Sea Coast in connection with complex of abiotic and agrogenic factors

During 20 years the author investigated the influence of set abiotic and agrogenic factors (meteorological conditions, combinations of different doses and sorts of fertilizers) on productivity of green leaves in tea plants of the Colchis variety, and also the efficiency of fertilizers application. It was established that nitric fertilizers result in the formation of stable productivity as young both mature aged tea plantation (effective doses - 90-180 and 200-400 kg/hectare, respectively) against a background of an application of phosphorus and potash fertilizers in the doses of 60-180 и 50-150 kg/hectar, respectively.