Effect of nitrogen, phosphorus, potassium and sulphur on growth, yield and nutrient balance of fennel
Keywords:
Fennel, Seed yield, nutrient management, nutrient balance sheet, MRR.Abstract
The experiment was conducted at Regional Spices Research Centre, BARI, Gazipur during two consecutive years, 2020-2021 and 2021-2022 to observe the response of fennel (var. BARI Mouri-2) to N, P, K and S for maximizing the yield and quality. The experiment was laid out in a Randomized Complete Block Design (RCBD) with three replications. The treatments were each of four levels of N (0, 80, 130 and 180 kg ha-1), P (0, 50, 70 and 90 kg ha-1), K (0, 40, 80 and 120 kg ha-1) and three levels of S (0, 20 and 30 kg ha-1). The N, P, K and S showed significant effect on the yield and yield attributes of fennel. The highest seed yield (1.98 tha-1) and the maximum harvest index (94.18%) of fennel were found in 130-70-80-30 kg NPKS ha-1. The net N, P, K and S balance ranged from -150 to -62.0, 0.12 to 5.68, 29.97 to 0.51 and 4.24 to 0.27 kg ha-1, respectively. The cost benefit analysis also indicate that the highest net income (Tk.180947.00) was estimated in 130-70-80-30 kg NPKS ha-1 of fennel cultivation. The response curve reveled that application of 145-62.5-77.5-22.86 kg NPKS ha-1 might be the recommended nutrient package for achieving higher seed production in in Grey Terrace Soil of Madhupur Tract (AEZ-28).
Bangladesh J. Agril. Res. 48(3): 275-292, September 2023
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