Effects of nitrogen levels on growth and yield of mustard greens (Brassica juncea var. rugosa) in Gauradaha-2, Jhapa, Nepal
DOI:
https://doi.org/10.26832/24566632.2026.110204Keywords:
Crop productivity, Cultivation practices, Mustard greens, Nitrogen fertilizer, Optimum doseAbstract
This experimental study was carried out at the research field of Gauradaha Agriculture Campus, Tribhuvan University, Jhapa, during the year 2024 to 2025. The aim of this study was to find the optimum level of nitrogen (Urea) fertilizer that provides maximum yield of mustard (Marpha broad leaf) greens under the local climatic conditions. The experiment was laid out in a Randomised Complete Block Design (RCBD) with five treatments and four replications. Urea was used to provide the nitrogen to the mustard greens plants. Five nitrogen doses (T0 =0 kg per ha, T1= 75 kg per ha, T2 = 100 kg per ha, T3 = 125 kg per ha, and T4 = 150 kg per ha) were used as treatment variables for the fertilization of mustard greens in the experiment. Plant height, leaf number, leaf length, leaf width, and yield of mustard greens were the parameters taken into consideration, with three harvests carried out at an interval of 20 days. The results showed that different doses on nitrogen diversely affected the different parameters of mustard greens. The plant height (36.75) and leaf number (8.5) were highest at T3, and leaf length (25.48), leaf width (21.2) and yield (3.03) of mustard greens were recorded highest at T2. Therefore, a dose of 100 kg per ha of Urea can be recommended as an optimum dose of nitrogen for the commercial production of mustard greens in Gauradaha-2, Jhapa, Nepal.
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