THE ROLE OF ORGANIC FERTILIZER (TICAMIN MAX) AND POTASSIUM SULFATE IN THE QUANTITATIVE AND QUALITATIVE YIELD OF POTATO ( SOLANUM TUBEROSUM L.)
The experiment was carried out in College of Agriculture and Forestry / Mosul University during spring season 2021, to investigate the effect of spraying organic acid (Ticamin Max) at a concentrations (1.5, 3, 4.5 and 6 ml L-1 ) and potassium sulfate at a concentrations (1.5, 3 , 4.5 and 6 gm l-1) in addition to the control treatment in potato plants ,Arizona cultivar, grade E. The experiment was designed according to the randomized complete block design (RCBD) with three replications. The results showed : Spraying Ticamin Max at 6 ml l-1 concentration gave the highest significant values in the number of total and marketable tubers per plant, tubers hardness and the percentage of total soluble solids (TSS) in tubers, with a value of 12.88, 11.10, and 12.45 kg cm2 and 6.03%, respectively. The treatment of potassium sulfate at 3 gm l-1 concentration gave the highest significance values in the average marketable tubers weight, marketable plant yield, marketing yield of tubers, percentage of dry matter and starch in tubers, and the specific weight of the tubers, with a value of 93.12 g and 960.89 gm 51.247 tons ha-1 and 19.67%, 13.13% and 1.1920, respectively.
Keywords: Ticamin Max, Potassium Sulfate, Potato, Tuber.