Normalization the application of essential macro and micro-nutrient chemical combinations for best exploitation of growth traits in potato under terai region of West Bengal

Potato is one of the most important food crops after rice and wheat. The climatic condition of terrain agro ecological region favours the cultivation of potato along with this good yield. But due to deficiency of macro nutrient and micronutrient in the soil of terai region the growth of the potato crop hampers, which ultimately result in poor yield. The mentioned problem keep in mind the present experiment conducted through enrichment of soil by external use off macro and micronutrients. The experiment focused only the growth parameters of the potato. In case of sole application the calcium (Ca) play important role in case of plant height at 50DAP (23.08 cm) and 70 DAP (29.06 cm), no of leaves at 50DAP (60.50) and 70 DAP (78.05), fresh weight (242.50 g) and dry weight (42.33 g). In case of combined application calcium (Ca), magnesium (Mg), sulphur (S), zinc (Zn) and boron (B) combined shows highest plant height at 50 DAP (28.66 cm) and 70 DAP (32..15 cm), number of leaves at 50DAP (80.72) and 70 Dap (90.67), fresh weight (277.17 g) and dry weight (45.83 g). Thus the results revealed that the soil is deficient in most of the macro and micro nutrients particularly those are unavailable in acidic soil of the terai zone. Therefore its application solely or in combination with others always showed some beneficial effects.