STUDIES ON THE EFFECT OF MICRONUTRIENTS AND HUMIC ACID ON GROWTH AND YIELD OF CUCUMBER cv. MALINI GROWN UNDER SHADE NET CONDITIONS”
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Date
2018-12-28
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SRI KONDA LAXMAN TELANGANA STATE HORTICULTURAL UNIVERSITY,MOJERLA
Abstract
The present investigation entitled “Studies on the effect of micronutrients and
humic acid on growth and yield of cucumber (Cucumis sativus L.) cv. Malini grown
under shade net conditions” was carried out during the rabi season of the year 2017-
18 at College of Horticulture, Mojerla.
The results related to vegetative parameters revealed that, among micronutrient
treatments, T8 treatment (zinc 60 ppm + iron 100 ppm + manganese 100 ppm)
registered longer vine length (340.09 cm), maximum number of primary branches per
vine (19.06), more number of nodes per vine (35.32) and higher internodal length
(14.01 cm) over other treatments.
Between foliar sprays of humic acid, humic acid spray at 0.75% recorded
significantly the longest vine length (281.46 cm), maximum number of primary
branches per vine (14.59), more number of nodes per vine (27.68) and higher
internodal length (9.46 cm) than humic acid spray at 0.5%.
The interaction between micronutrients and humic acid had a significant
influence on vine length, number of primary branches per vine, number of nodes per
vine and internodal length. T8 treatment (zinc 60 ppm + iron 100 ppm + manganese
100 ppm) along with humic acid spray at 0.75% recorded significantly the highest
vine length (357.75 cm), maximum number of primary branches per vine (20.14),
more number of nodes per vine (37.28) and higher internodal length (14.91 cm).
The results pertaining to fruit parameters indicated that, T8 treatment (zinc 60
ppm + iron 100 ppm + manganese 100 ppm) took less number of days taken to first
harvest (46.17), maximum number of days taken to last harvest (86.68), more number
of fruits per vine (26.33), maximum fruit length (21.85 cm) and diameter (4.83 cm)
and heaviest fruit (280.88 g) as compared to other treatments
Between foliar sprays of humic acid, humic acid spray at 0.75% recorded
minimum number of days taken to first harvest (47.25), maximum number of days
taken to last harvest (77.70), more number of fruits per vine (20.70) and heaviest fruit
(230.14 g) than humic acid spray at 0.5%.
The results related to yield parameters revealed that, among micronutrient
treatments, T8 treatment (zinc 60 ppm + iron 100 ppm + manganese 100 ppm)
recorded significantly maximum fruit yield per vine (7.11 kg), fruit yield per plot
(161.61 kg), fruit yield per hectare (193.84 t/ha) and marketable yield (217.40 t/ha)
over other treatments.
Between foliar sprays of humic acid, humic acid spray at 0.75% registered
maximum fruit yield per vine (5.50 kg), fruit yield per plot (118.51 kg), fruit yield per
hectare (158.40 t/ha) and marketable yield (155.78 t/ha) than humic acid spray at
0.5%.
Significant interaction effect was observed between micronutrients and humic
acid spray on yield parameters. T8 treatment (zinc 60 ppm + iron 100 ppm +
manganese 100 ppm) along with humic acid spray at 0.75% recorded higher fruit yield
per plot (168.49 kg), fruit yield per hectare (199.12 t/ha) and marketable yield (238.59
t/ha).
The data on economics between micronutrients and humic acid spray showed
that combined foliar spray of (zinc 60 ppm + iron 100 ppm + manganese 100 ppm)
and humic acid at 0.75% recorded higher gross return (Rs 19,91,200 ), net return (Rs
14,60,374 ) and benefit cost ratio (2.75) over other treatments.
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