EFFECT OF POTASSIUM AND MAGNESIUM ON THE GROWTH AND YIELD OF POTATO

Abstract

The experiment was carried out at the farm of Sher-e-Bangla Agricultural Univervisty, Dhaka, under the Department of Soil Science, during November 2018 to February, 2019 to study the effect of potassium and magnesium application on the growth and yield of potato. The experiment consisted of two factors viz. Factor A – three K levels as K 0 = Control (0 kg K ha -1 ), K ii 1 = 100 kg K ha -1 1

and Factor B: three Mg levels as M 0 = Control (0 kg Mg ha -1 and K ), M

and M 2 = 20 kg Mg ha -1 1 . The experiment was laid out into Randomized Complete Block Design with three replications. Data were collected on different parameters and analyzed significantly using MSTAT software. In most of the cases treatment K (120 kg K ha -1 ) gave the best result and showed highest tuber yield (25.72 t ha ) whereas the lowest was obtained from control. Similarly, M 1 (10 kg Mg ha -1 ) gave best results in most of the cases and showed highest tuber yield (22.26 t ha -1 ). The treatment combination of K and Mg showed significant variation on different growth and yield parameters of potato. Results revealed that the highest tuber yield (26.56 t ha ) and stover yield (20.67 t ha -1 2 = 120 kg K ha = 10 kg Mg ha ) were recorded from the treatment combination of K

whereas the lowest tuber yield (14.96 t ha -1 ) and stover yield (17.44 t ha ) were recorded from the treatment combination of K