STUDIES ON THE EFFECT OF ORGANIC MANURES AND INORGANIC FERTILIZERS ON PRODUCTION AND QUALITY OF OKRA (Abelmoschus esculentus L.)
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Date
2003
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ACHARYA N.G. RANGA AGRICULTURAL UNIVERSITY RAJENDRANAGAR, HYDERABAD
Abstract
A field experiment was conducted during February to April, 2001
at Students’ Farm, College of Agriculture, Rajendranagar, Hyderabad to
“study the effect of organic and inorganic sources of nitrogen on yield
and quality of okra”. Two cultivars viz., cv. Arka Anamika and cv.
Parbhani Kranthi were selected for this study. The treatments consisted
of 4 levels (25, 50, 75 and 100 per cent substitution to recommended
nitrogen) each of farmyard manure and vermicompost along with 100
per cent recommended nitrogen through inorganic form of fertilizer and
a control. The experiment was laid out in a randomized block design
with three replications.
The results indicated that application of 50 per cent RDNF
through vermicompost and 50 per cent through inorganic fertilizer
recorded maximum plant height, pod yield and dry matter production of
pod. Among the two cultivars studied, cv. Arka Anamika recorded
maximum pod yield followed by cv. Parbhani Kranthi.
Maximum number of nodes and pods per plant were recorded
with the application of 50 per cent RDNF through vermicompost and 50
per cent RDNF through inorganic fertilizer.
Among the two cultivars Parbhani Kranthi recorded less number
of days for first flower appearance. But the effect of organic and
inorganic sources of nitrogen did not influence the number of days taken
from flowering to harvesting.
The application of organic manures improved the quality
parameters of okra viz., pod length, crude fibre development. The
influence was highly significant with vermicompost applied plots.
Maximum pod length and low crude fibre content was observed with 50
per cent RDNF through vermicompost and 50 per cent RDNF through
inorganic fertilizers in both the cultivars studied.
Among the two cultivars the gross costs (Rs.35,529), gross
returns (Rs.87,425) and cost benefit ratio (2.46) were highest with 50
per cent RDNF through vermicompost and 50 per cent RDNF through
inorganic fertilizer in cv. Arka Anamika, followed by cv. Parbhani
Kranthi.
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STUDIES, EFFECT, ORGANIC, MANURES, INORGANIC, FERTILIZERS, PRODUCTION, QUALITY , OKRA