Abstract:A field experiment was conducted to study the effect of nitrogen levels and herb harvests on growth of fenugreek
cv. Ajmer fenugreek-1 during 2014-15 at the Department of Plantation, Spices, Medicinal and Aromatic crops, College of Horticulture, UHS campus, GKVK, Bengaluru. The treatments comprised of 3 levels of nitrogen (25, 40 and 55 kg N/ha) and different harvesting Practices (no cut, single cutting at 35 DAS and double cuts at 35 and 60 DAS).
Among the nitrogen levels, application of nitrogen at 55kg per hectare recorded maximum values for all the growth parameters such as plant height, number of branches per plant, fresh and dry herb, and number of days to flowering and crop maturity. However, delayed flowering and maturity was observed with the same dose. Similarly, uncut plants recorded the maximum values for all the growth parameters and resulted in early flowering and maturity.
The maximum plant height (52.7 cm) was recorded in the plants supplied with nitrogen at 55 kg per hectare and the crop left un harvested (N3C0). Whereas, minimum height (31.6 cm) was noticed in the plants fertilized with nitrogen at 25 kg per hectare and harvested twice for leaf (N1C2). Maximum number of branches per plant (6.6) and fresh weight of herb(47.01g/plant) was noticed in the plants fertilized with highest level of nitrogen (55 kg/ha) and harvested once for herb (N3C1). Early flowering and crop maturity (30.1 and 93.3 DAS respectively) was observed in plants applied with minimum level of nitrogen at 25kg per hectare (N1) and the plants left without leaf harvest.