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EFFECT OF SULPHUR SOURCES AND LEVELS ON YIELD AND QUALITY OF ONION (Allium cepa L.)

KrishiKosh

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Title EFFECT OF SULPHUR SOURCES AND LEVELS ON YIELD AND QUALITY OF ONION (Allium cepa L.)
 
Creator Pradhan, Rosalin
 
Contributor Pattnaik, A.K.
 
Subject EFFECT, SULPHUR SOURCES AND LEVELS, YIELD AND QUALITY, ONION
 
Description The present investigation entitled Effect of Sulphur sources and
levels on yield and quality of onion (Allium cepa L.) was carried out at
the field site of the All India Network Research Project on Onion and
Garlic operating under College of Horticulture (OUAT) Chiplima, Sambalpur,
Odisha during Rabi 2012-13. The experiment consisted of seven
treatments with three levels of Sulphur nutrition (@ 15, 30 and 45 kg ha-1)
through two sources, i.e. Gypsum and Elemental Sulphur with recommended
doses of fertilizers of N,P,K @ 150-50-80 kg ha-1 along with one control,
replicated thrice in Randomized Block Design. The experiment was
conducted to study the efficacy of sources and levels of sulphur on the
performances of onion with respect to plant growth parameters [viz. plant
height, number of leaves, collar thickness], yield and yield attributing
parameters [viz. average bulb weight (g), polar diameter (mm), equatorial
diameter (mm), neck thickness (mm), total bulb yield (q ha-1)], qualitative
parameter [viz. Total Soluble Solid ( 0 Brix ) as well as nutrient uptake and soil
fertility status.
The results obtained from the present experiment indicated that
there was no single treatment which recorded significantly highest value for all
parameters under study rather revealed variable response of different sources
and levels of sulphur on growth, yield and yield attributing, qualitative
characters and soil as well as plant nutrient status of onion variety, Agrifound
Dark Red. Application of gypsum @ 45 kg ha-1 (T4) recorded significantly
highest values for the characters such as plant height (67.60 cm) and total
bulb yield (251.10 q ha-1) with maximum value for number of leaves (11.37).
However application of gypsum @ 30 kg ha-1 (T3) was recorded total bulb
yield of 226.07 q ha-1, which was at par with application of gypsum @ 45 kg
ha-1 (T4). Application of gypsum @ 15 kg ha-1 (T2) recorded significantly
highest values for collar thickness (16.60 mm) and maximum value for
average bulb weight (75.40 g), equatorial diameter (54.27 mm) and neck
thickness (10.55 mm). As regards the nutrient uptake by onion plant,
application of gypsum @ 45 kg ha-1 (T4) recorded significantly highest values
for the total Nitrogen (88.47 kg ha-1), Phosphorous (7.41 kg ha-1), Potassium
(42.92 kg ha-1) and Sulphur (9.75 kg ha-1) than other treatments except
gypsum @ 30 kg ha-1 (T3), which was statistically at par.
In general, application of sulphur along with recommended dose of
fertilizer increased the soil fertility status (NPK) with slight reduction in sulphur
due to removal of nutrients by onion plants.
From the present investigation it may be concluded that application
of sulphur is highly essential for onion crop. Among the two sources of sulphur
tested, gypsum was found to be superior to elemental sulphur, irrespective of
levels of sulphur. Similarly application of @ 30 kg ha-1 was found to be
superior to rest of doses except 45 kg ha-1. Application of sulphur with
recommended dose of fertilizer invariably increases the soil fertility status in
onion crop.
 
Date 2017-01-03T11:30:32Z
2017-01-03T11:30:32Z
2013
 
Type Thesis
 
Identifier http://krishikosh.egranth.ac.in/handle/1/94103
 
Language en
 
Relation Th;4063
 
Format application/pdf