Effect of Nitrogen, Phosphorous and Potash on Yield Attributes and Quality of Sugar Beet (Beta vulgaris)

Field experiment was undertaken during 2005-06 to 2006-07 to study the various agro-techniques for sugar beet cultivation for Northern Karnataka at Agricultural Research Station, Bailhongal, Belgaum district (Karnataka) under irrigated condition. The experiment consisted of 28 treatment combinations comprising of graded levels of nitrogen, phosphorus and potassium. Design of the experiment was randamized block design with factorial concept. Among the graded levels of nitrogen fertilization, application of 180 kg N ha-1 recorded significantly higher yield and quality parameters than other treatments. Within graded levels of phosphorus, both phosphorus 60 and 90 kg ha-1 were at par with each other. However, 30 kg phosphorus recorded lower yield attributes. Potassium application at 120 kg was significantly superior over rest of the treatments. The NPK at 180, 90 and 120 kg ha-1, respectively were found optimum for getting higher yield and quality attributes of sugar beet.