Response of organic manures on growth, flowering and spike yield of tuberose (Polianthes tuberosa L)
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Date
2021-08
Authors
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Journal ISSN
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Publisher
CCSHAU, Hisar
Abstract
The present study entitled “Response of organic manures on growth, flowering and spike yield of
tuberose (Polianthes tuberosa L.)” cv. Prajwal was carried out at Deen Dayal Upadhyay Centre of
Excellence for Organic Farming, Chaudhary Charan Singh Haryana Agricultural University, Hisar
during the year 2020-21. In this experiment, three sources of organic manures viz., FYM,
vermicompost and poultry manure were taken along with their five levels (control, 2 Kg/m2
, 3 Kg/m2
, 4
Kg/m2
and 5 Kg/m2
). This experiment comprising of fifteen treatments laid out in split plot design with
three replications. The plot size was kept 1.5 m x 1.5 m with spacing 30 cm x 30 cm between row to
row and plant to plant.
Among the different organic manures vermicompost gave best results followed by poultry
manure and FYM. Days taken to initiation of sprouting and complete sprouting were minimum with the
application of poultry manure while early spike emergence, early opening of first floret, maximum
plant height, length of leaves, number of leaves per clump, length of spike, length of rachis, stem
diameter, number of florets per spike, spike weight, number of bulbs per clump, diameter of bulb,
weight of bulb, spike longevity under field and vase conditions were observed when fertilized with
vermicompost @ 4 Kg/m2 whereas maximum organic carbon in soil & potassium content in leaves and
soil with the application of vermicompost @ 5 Kg/m2
. Nitrogen & Phosphorus content of plant and soil
was observed maximum with poultry manure @ 5 Kg/m2
. Among microbial activities, dehydrogenase
activity was maximum with FYM and alkaline phosphatase activity with poultry manure @ 5 Kg/m2