PJB-2018-344
QUALITY OF CARROT (DAUCUS CAROTA L.) AS AFFECTED BY THE APPLICATION OF POTASSIUM FERTILIZER
Nisar Ahmad
Abstract
A field experiment was conducted to assess the quality of carrot (Daucus carota L.) variety T-29 by the application potassium fertilizer. Potassium was applied @ 0, 40, 60, 80, 100 and 120 Kg ha-1and carrot was sown during the month of November of every year. The experiment was continued for consecutive three years i.e. 2013-14, 2014-15 and 2015-16. Yield data were collected and quality parameters pulp, juice, TSS, vitamin C, dry matter, total sugars and reducing sugars were determined. Results revealed that the application of K @ 40 kg ha-1 enhanced the yield and quality parameters but the higher doses above 40 kg ha-1 did not contribute towards yield as well as quality. Root yield in various treatments ranged from 20.6 to 30.8 in 2013, 18.0 to 25.8 in 2014 and 17.5 to 27.8 t ha-1 in 2015, minimum in control and maximum at treatment where K was applied @ 120 kg ha-1. Quality parameters like pulp, juice, mineral matter and vitamin-C did not affect positively by the application of K while the total sugars were increased from 4.0 to 5.6, 4.7 to 5.5 and 5.5 to 6.8 % (Minimum in control and maximum with 120 kg ha-1 K application) during the years 2013-14, 2014-15 and 2015-16 respectively. Key words: Carrot, Potassium fertilizer, Sugar, quality
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