STUDIES ON EFFECT OF ORGANIC NUTRIENT SOURCES ON ROOT YIELD AND QUALITY OF CARROT (Daucus carota L.)
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Date
2018-06-22
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UHF,NAUNI
Abstract
ABSTRACT
The present investigation entitled, “Studies on Effect of Organic Nutrient Sources on Root
Yield and Quality of Carrot (Daucus carota L.)” was carried out at Organic Block of Experimental
Farm, Department of Vegetable Science, Dr YS Parmar University of Horticulture and Forestry,
Nauni, Solan, (HP) in the Rabi season of 2017. The experiment was laid out in Randomized Complete
Block Design (RCBD) Factorial with three replications comprising of sixteen treatment combination
of four levels of organic manure (M) viz., M0 (No organic manure), M1 (FYM @ 10 t/ha), M2
(Vermicompost @ 5 t/ha) and M3 (FYM @ 5 t/ha + Vermicompost @ 2.5 t/ha) and four levels of
organic liquid formulations (L) viz., L0 (No organic formulations), L1 (Jeevamrit - drenching @ 5 %),
L2 (Panchgavya - spray @ 3 %), L3 (Jeevamrit - drenching @ 5 % + Panchgavya - spray @ 3 % ) .
The seeds of carrot cultivar ‘Early Nantes’ were sown on 15th September 2017 in a plot size of 2.25
m2. The observations were recorded on top length (cm), root length (cm), root diameter (mm), root top
ratio : length basis & weight basis, plant biomass (kg/ha), average root weight (g), root yield per plot
(kg) and per hectare (q), core diameter (mm), flesh thickness (mm), TSS (˚Brix), carotenoid content
(mg/100 g), available NPK content in soil (kg/ha) [before and after termination of experiment], viable
bacterial count (cfu/g), NPK uptake by plant (kg/ha) and diseases incidence/severity. The results
revealed that T12 (Vermicompost @ 5 t/ha + Jeevamrit - drenching @ 5 % + Panchgavya - spray @ 3
%) was rated as the best treatment for majority of characters like top length, root length, root
diameter, plant biomass, average root weight, root yield per plot and per hectare, flesh thickness,
available NPK content in soil, viable bacterial count and NPK uptake by plant. Gross income (Rs.
3,61,600/ha) and net return (Rs. 2,56,053/ha) was also maximum in T12 whereas maximum B: C ratio
(2.49) was obtained from T10 (Vermicompost + Jeevamrit). Hence, application of vermicompost along
with Jeevamrit (economic point of view) and vermicompost along with Jeevamrit and Panchgavya
(for better growth, yield and quality parameters) can be recommended for commercial cultivation of
carrot in the mid hills of Himachal Pradesh.
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