Effect of Different Levels of Nitrogen, Phosphorus And Potassium on the Growth and Yield of Cucumber (Cucumis Sativus L.) In the Coastal Region of Bangladesh

Abstract

The experiment was carried out at Agricultural Research Field, Noakhali Science and Technology University, Noakhali, Bangladesh during the period of March to June 2021, to evaluate the growth and yield of cucumber (Cucumis sativus L. CV: MOHABIR) as influenced by different levels of NPK fertilizer. The experiment was laid out in a Randomized Complete Block Design (RCBD) with three replications. The treatments were T₀ (no NPK), T₁ (N 69 kg ha^-1, P₂O₅ 48 kg ha^-1 and K₂O 75 kg ha^-1), T₂ (N 69 kg ha^-1, P₂O₅ 60 kg ha^-1 and K₂O 90 kg ha^-1), T₃ (N 92 kg ha^-1, P₂O₅ 72 kg ha^-1 and K₂O 105 kg ha^-1), respectively. Data were recorded from different stages of plant growth on the number of leaves per plant, number of fruits per plant, fruit length, fruit diameter, individual fruit weight, yield per plant and yield per plot. All the recorded parameters were statistically significant (p<0.01). The maximum number of leaves per plant (37.83) was recorded from T₃ (N 92 kg ha^-1, P₂O₅ 72 kg ha^-1 and K₂O 105 kg ha^-1) whereas the minimum number of leaves per plant (27.92) was obtained from the control T₀ (no NPK). Highest number of fruits per plant (11.92), fruit length (16.00 cm), fruit diameter ((4.10 cm), individual fruit weight (167.17 g), weight of fruits per plant (2.00 kg), and yield per hectare (68.35 t/ha) was found in treatment T₃ (N 92 kg ha^-1, P₂O₅ 72 kg ha^-1 and K₂O 105 kg ha^-1) whereas lowest data recorded from control T₀ (no NPK). Observing the results, it can be stated that application of NPK fertilizer @ N 92 kg ha^-1, P₂O₅ 72 kg ha^-1 and K₂O 105 kg ha^-1 for cucumber cultivation gave better growth and yield in the coastal region of Bangladesh.

Vol. 9, No. 2, August 2022: 117-123