International Journal of Pure & Applied Bioscience (IJPAB)
Year : 2018, Volume : 6, Issue : 2
First page : (540) Last page : (549)
Article doi: : http://dx.doi.org/10.18782/2320-7051.6395
Effect of Potassium Levels, Sources and Time of Application on Yield of Onion (Allium cepa L.)
Kumara, B. R., C. P. Mansur, Girish Chander*, S. P. Wani*, T. B. Allolli, S. L. Jagadeesh, R. K. Mesta, D. Satish, Shankar Meti, and Sanjeevraddi G. Reddy
Department of Horticulture College of Horticulture, UHS, Bagalkot
*ICRISAT- International Crops Research Institute for Semi-Arid Tropics, Patancheru, Telangana
*Corresponding Author E-mail: kumar.bhavi@gmail.com
Received: 5.03.2018 | Revised: 9.04.2018 | Accepted: 15.04.2018
ABSTRACT
The present investigation on “Effect of potassium levels, sources and time of application on yield parameters of onion var. Arka Kalyan” was carried out at the College of Horticulture, Bagalkot, Karnataka during Kharif season of 2015 and 2016. Potassium levels at 200 per cent RDK significantly influenced the polar and equatorial diameter of bulb (53.80 and 60.63 mm, respectively), weight of single bulb (105.18 g), bulb yield (20.54 kg/plot and 48.91 t ha-1) and was on par with 150 and 175 per cent RDK. Among potassium sources, SOP recorded maximum polar and equatorial diameter of bulb (52.09 and 59.80 mm, respectively) over MOP (51.25 and 58.50 mm, respectively). Among potassium sources, SOP recorded significantly higher weight of single bulb and bulb yield per plot and hectare (104.52 g, 20.03 kg/plot and 45.38 t ha-1 respectively) over MOP (99.96 g, 19.06 kg/plot and 45.38 t ha-1 respectively). Significantly higher polar and equatorial diameter of bulb with application of 50 per cent potassium at transplanting and 50 per cent at 30 DAT (51.96 and 59.64 mm, respectively) and was significantly superior over application of 100 per cent potassium at transplanting (51.33 and 58.64 mm, respectively). The weight of single bulb, bulb yield per plot and hectare was recorded in application of 50 per cent potassium at transplanting and 50 per cent at 30 DAT (103.54 g, 19.87 kg and 47.31 t ha-1) was significantly superior over application of 100 per cent potassium at transplanting (100.94 g, 19.20 kg and 45.74 t ha-1).
Key words: Onion, Yield, Potassium, MOP, SOP, Time of Application
Full Text : PDF; Journal doi : http://dx.doi.org/10.18782
Cite this article: Kumara, B.R., Mansur, C.P., Chander, G., Wani, S.P., Allolli, T.B., Jagadeesh, S.L., Mesta, R.K., Satish, D., Meti, S. and G. Reddy, S., Effect of Potassium Levels, Sources and Time of Application on Yield of Onion (Allium cepa L.), Int. J. Pure App. Biosci.6(2): 540-549 (2018). doi: http://dx.doi.org/10.18782/2320-7051.6395
