Response of Potato (Solanum tuberosum L.) cv. Kufri Jyoti to varying levels & time of Potassium application
Loading...
Date
2012
Authors
Journal Title
Journal ISSN
Volume Title
Publisher
SKUAST Kashmir
Abstract
Present investigation entitled “Response of Potato (Solanum tuberosum L.)” cv. Kufri Jyoti to varying levels & time of Potassium application’ was carried out at Vegetable Experimental Field, Division of Vegetable science during Kharif 2011 to work out the optimum level and best time of potassium application for obtaining high yield and quality of potato.
The experiment was laid in a randomized block design with three replications at the spacing of 60x 20 cm. Three levels of potassium i.e., 50 kg, 100 kg and 150 kg and seven treatments. Full basal, ¾ basal + ¼ top dressing at 40 Days after planting, ¾ basal + ¼ top dressing at 60 Days after planting, ½ basal + ½ top dressing at 40 Days after planting ½ basal + ½ top dressing at 60 Days after planting, No basal + ½ top dressing at 40 Days after planting + ½ Top Dressing at 60 Days after planting, Full top dressing at 40 Days after planting were tried in the experiment. The observations were recorded on growth, yield and quality traits from 10 randomly selected plants from each treatment.
Among various treatments 150 Kg potassium applied basally improved the growth of the plant than other treatments. Treatment (T18)150 Kg potassium applied in two splits of ½ basal + ½ top dressing at 40 Days after planting recorded significantly highest yield of 301.28q/ha and proved better in improving yield attributing characters of potato. The tuber quality with respect to Vitamin C, Protein content, Specific gravity also exhibited higher values.
Economics studies indicated treatment combination of 150 Kg potassium applied in two splits of ½ basal + ½ top dressing at 40 Days after planting proved to be most profitable with maximum benefit cost ratio of 2.28.The investigation further revealed that same treatment turned to be remunerative quantitatively and qualitatively as well as for pushing further the Net Returns. The results as such provide guidance for establishment of level and time of potassium application to enhance yield attributes of potato.
Description
M.Sc Thesis submitted to
Keywords
potato, potassium,, quality, yield, time, Olericulture/Vegetable Science