STUDIES ON COFFEE EFFLUENT WASTE COMPOST ON GROWTH AND YIELD OF PADDY (Oryza sativa L.)
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Date
2012-11-29
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University of Agricultural Sciences GKVK, Bangalore
Abstract
Field experiment, “Studies on Coffee Effluent waste compost and
its effect on growth and yield of Paddy”, was conducted at ZARS, GKVK,
Bangalore during kharif 2011. The experiment comprising of eight
treatments namely Recommended Dose of Fertilizer (RDF) + Farm Yard
Manure (FYM) @ 5 t ha-1, RDF + Coffee effluent waste compost (CEWC)
@ 5 t ha-1, RDF + 25% FYM + 75% CEWC, RDF + 50% FYM + 50% CEWC,
RDF + 75% FYM + 25% CEWC, FYM @ 5 t ha-1, CEWC @ 5 t ha-1, and
RDF 100:50:50 NPK kg ha-1, were laid out in randomized complete block
design with three replications. The results revealed that application of 5 t
CEWC with RDF improved soil physical properties such as bulk density
(1.38 g/cc), water holding capacity (32.45 %) and also soil chemical
properties like soil pH (6.00), Electrical conductivity (0.10 dSm-1), organic
carbon (0.58 %), available nitrogen (321.23 kg ha-1), phosphorous (34.23
kg ha-1) and potassium (147.63 kg ha-1). Further the same treatment
improved soil urease (225.20 μg NH4 N g-1 soil 2 h-1) and acid
phosphatase (28.41 μg PNP g-1 h-1) enzymatic activity. The same
treatment recorded significantly higher grain (5.09 t ha-1) and straw yield
(6.57 t ha-1) and also higher net returns (Rs 43150 ha-1) and B:C ratio
(2.76) which was attributed to higher number of productive tillers (29.27
hill-1), total dry matter (105.15 g hill-1), number of grains (74.20 panicle-1)
and 1000 grain weight (23.15 g), as compared to other treatments.
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Keywords
sowing, planting, yields, fertilizers, spacing, carrots, developmental stages, nitrogen, productivity, crops