EFFECT OF SPACING AND FERTIGATION ON GROWTH AND YIELD OF BACHELOR’S BUTTON (Gomphrena globosa L.)
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Date
2010-07-25
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University of Agricultural Sciences GKVK, Bangalore
Abstract
The present investigations were carried-out to study the ‘Effects of
spacing and fertigation on growth and yield of bachleor’s button’
(Gomphrena globosa) at the PFDC, Division of Horticulture, College of
Agriculture, GKVK, UAS, Bangalore during 2009-10.
The treatment T4 (30 cm x 30 cm + 120% RDF) produced high
statured plants (69.17 cm) and more number of branches per plant (12.00).
The treatments T4 and T6 (on par) registered higher girth of stem. The
treatment T4 & T6 (45 cm x 30 cm + 100% RDF) (on par) recorded maximum
spread of plant (43.83 and 42.83 sq.cm). The treatments T4, T5 and Tg (on
par) resulted in maximum fresh weight (117.76, 102.74 and 108.64 g) and
dry weight of shoot (79.11, 68.85 and 72.98 g). Maximum fresh weight
(14.13 g) and dry weight of root (9.05 g) were recorded in the treatment T4.
The treatment T4 registered maximum fresh weight (77.10 g) and diy
weight of hundred flowers (40.54 g). The treatment T4 resulted in maximum
weight of flowers per plant (117.68 g), per square metre (1295.42 g) and per
hectare (12.9 t), and also produced maximum number of flowers per plant
(193.10), per square metre (2176.67) and per hectare (21.76 lakhs).
The treatments T4 and T6 (on par) took minimum time for drying
under shade (8 and 9 days), sun (4 and 5 days) and oven methods (8 and 9
hours), while the treatment T4 took minimum time for drying under micro
oven drying (2 min). The treatments T7 and Ti (on par) recorded minimum
colour change of flowers under oven (3.2 and 3.4) and micro oven drying
(3.4 and 4.0). The treatment T4 experienced better keeping quality under
shade (5.0), sun (3.0), oven (4.6) and micro oven drying (4.8).
For growth and yield parameters of Gomphrena globosa, closer
spacing of 30 cm x 30 cm and fertigation @ 120 % of the recommended
dosage of fertilizers was found to be better as revealed by the
net returns (Rs 1, 88,057/ha) and the cost benefit ratio (1:2:65)
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