Influences on Growth and Yield Attributes of Potato: Via Split Doses of Nitrogen (original) (raw)

2020, Int.J.Curr.Microbiol.App.Sci

In order to evaluate the effect of split application of nitrogen on growth, yield attributes and yield of Potato cv. Kufri Khyati, an experiment was undertaken during winter season of 2018-19 at Vegetable Research Centre of GBPUAT, Pantnagar, Uttarakhand. The experiment was consisted of seven treatments replicated thrice in Randomized Block Design. During the experiment, various observations such as emergence per cent, growth and yield attributes, harvest index and economics of the treatments were evaluated with respect to split application of nitrogen. The emergence per cent was recorded at 30 days after planting (DAP). Among growth parameters, plant height, number of haulms, diameter of haulms was recorded at 30, 45 and 60 DAP. Whereas, yield and yield attributing characters viz., grade wise number of tubers per plot, total number of tubers per plot & per hectare, grade wise weight of tubers per plot, total weight of tubers per plot & per hectare and harvest index was recorded at the time of harvest. The study revealed that the growth, yield attributing characters and yield was influenced by split application of nitrogen and significantly increased values were obtained. Among seven treatments, 50 % basal N of RDF + 25 % top dressing at 25 DAP + two foliar spray @ 2 % urea at 40 and 55 DAP was found best regarding growth, tuber yield and B-C ratio.