INTEGRATED NUTRIENT MANAGEMENT TO ENHANCE THE PRODUCTIVITY OF SOYBEAN UNDER RAINFED CONDITION
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Date
2009-08-15
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University of Agricultural Sciences, Bangalore
Abstract
A field experiment was conducted at Agroforestary field unit,
University of Agricultural Sciences, Bengaluru during Kharif 2008, to
study the integrated nutrient management in order to enhance the
productivity of soybean under rainfed condition. The soil of the
experimental site was red sandy clay loam. and slightly acidic (pH 5.7)
and electrical conductivity of 0.06 dSm -1 at 250c. The organic carbon
content was 0.32 per cent with medium available nitrogen (226.4 kg
ha-1), available phosphorus (18.58 kg ha-1) and available potassium
(176.32 kg ha-1). The experiment was laid out in split plot design with
twelve total treatment combinations with three levels of farm yard
manure (5, 10 and 15 t ha-1 ) and four levels of recommended dose of
fertilizers (0, 50, 100 and 150 per cent NPK ).
Application of different levels of farm yard manure (FYM) and
recommended dose of fertilizer (RDF) significantly influenced the soybean
seed and haulm yields. Significantly higher seed and haulm yields (1949
and 3163 kg ha-1, respectively) were recorded with 15 t FYM ha-1 followed
by 10 t FYM ha-1 application (1902 and 2877 kg ha-1, respectively) as
compared to 5 tones farm yard manure application per hectare (1813
and 2579 kg ha-1, respectively). Similarly higher seed and haulm yields
were recorded significantly with application of 150 per cent
recommended dose of fertilizer (2447 and 3753 kg ha-1, respectively). The
interaction effect was found significant, among different treatment
combinations, application of 15 t FYM ha-1 + 150 % RDF ha-1 recorded
significantly higher seed yield (2490 and 4067 kg ha-1, respectively) as
compared to other treatment combinations.
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