Effect of Organic Manures and Micronutrients on Root Yield and Seed Production of Carrot (Daucus carota L.)
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Date
2022
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Abstract
A field experiment was conducted to study the „„Effect of Organic
Manures and Micronutrients on Root Yield and Seed Production of
carrot (Daucus carota L.)” during rabi season 2021-22 at Horticulture
Farm, S.K.N. College of Agriculture, Jobner (Raj.). The experiment
consisted of sixteen treatment combinations including four organic
manures (no manure, FYM @ 10 t/ha, vermicompost @ 3.5 t/ha and
poultry manure @ 2.5 t/ha) and four foliar spray of Micronutrients
(control, FeSO4 @ 0.5 %, Borax @ 0.5% and ZnSO4 @ 0.5 %) were
under taken in factorial randomized block design with three
replications.
The results of the study clearly indicated that application of
poultry manure @ 2.5 t/ha to carrot significantly increased the plant
height (cm), number of shoots per plant, chlorophyll content in leaves,
days to 50% umbel initiation, average weight of marketable root
(g),diameter of roots (cm),length of roots, shoots : roots ratio, core
diameter (cm), roots yield (q/ha), number of umbels per plant, number
of seed per umbel, diameter of umbel, seed weight per plant, days to
seed maturity and seed yield per hectare(q/ ha) ,carotene content in
roots, sugar content in roots, test weight of seed and net returns (
334519/ha) and B:C (3.22) ratio of roots yield and net return (
395741 ) and B: C (3.81) ratio of seed yield seen as for compared to
control and FYM @ 10 t/ ha which was statistically at par with
vermicompost @ 3.5 t/ha except net return and B:C ratio of root yield
.
Similarly, application of ZnSO4 @ 0.5 per cent as foliar spray
significantly increased the plant height (cm), number of shoots per plant, chlorophyll content in leaves, days to 50% umbel initiation,
average weight of marketable root (g), diameter of roots (cm), length
of roots, shoots : roots ratio, core diameter (cm), roots yield (q/ha),
number of umbels per plant, number of seed per umbel, diameter of
umbel, seed weight per plant, days to seed maturity and seed yield
per hectare( q/ha) carotene content (mg/ 100g) and sugar content
(total sugar, reducing sugar and non – reducing sugar), net returns (
340879/ha) and B:C ratio (3.50) of root yield and net returns(
400842/ha) and B:C (4.13) ratio of seed yield as compared to control
and FeSO4 @ 0.5 percent which was statistically as per with borax @
0.5 per cent except reducing sugar and net return and B:C ratio of
root yield .
Further, it can be concluded that combined application of
poultry manure @ 2.5 t/ha with foliar spray of ZnSO4 @ 0.5 per cent
proved to be the most superior treatment combination as it fetched
comparable root yield (342.87 q/ha), seed yield (7.17 q/ha), net return
( 410334/ha) and B:C (3.95) ratio of root yield and net return (
469393/ha) and B:C (4.51) ratio of seed yield