Integrated nutrient management studies on growth,yield and quality of garland chrysanthemum (Chrysanthemum coronarium L.)
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Date
2010
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UAS, Dharwad
Abstract
A field experiment was conducted on red sandy loam soil at Floriculture unit of
Department of Horticulture, College of Agriculture, University of Agricultural Sciences,
Dharwad, during kharif 2009-2010 to study the effect of integrated nutrient management on
growth, yield and quality of garland chrysanthemum. The experiment was laid out in
randomized block design with 3 replications and 9 treatment combinations comprising of
inorganic fertilizers, organic manures and boifertilizers.
The treatment receiving Azospirillum + PSB + 50% vermicompost equivalent to RDN
+ 50% recommended NPK recorded the highest plant height, number of branches, plant
spread, leaf area index, dry matter accumulation and yield attributes such as number of
flowers per plant, number of flowers per plot, flower yield/plant, flower yield/plot and flower
yield/ha.
The early flower bud initiation, 50 per cent flowering and more flowering duration
was achieved in the treatment receiving Azospirillum + PSB + 50% vermicompost equivalent
to RDN + 50% recommended NPK.
Significantly higher available nutrients (nitrogen, phosphorus and potassium) and
their uptake by plants was recorded in treatment receiving Azospirillum + PSB + 50%
vermicompost equivalent to RDN + 50% recommended NPK.
Application of Azospirillum + PSB + 50% vermicompost equivalent to RDN + 50%
recommended NPK registered significantly higher quality parameters such as flower
diameter, shelf life of loose flowers and vase life of cut flowers.
The economic analysis clearly indicated that net returns/ha and B:C ratio was highest
in the plots treated with Azospirillum + PSB + 50% vermicompost equivalent to RDN + 50%
recommended NPK (Rs. 1,95,135 and 4.23 respectively) and this finding can be used in
making garland chrysanthemum production more profitable.
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Horticulture