EFFECT OF INTEGRATED NUTRIENT MANAGEMENT ON GROWTH AND SEED YIELD OF OKRA (ABELMOSCHUS ESCULENTUS (L.) MOENCH)
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Date
2012
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Sher-e-Kashmir University of Agricultural Sciences and Technology of Jammu
Abstract
The present investigation entitled "Effect of integrated nutrient management on growth and seed yield of okra (Abelmoschus esculentus (L.) Moench)." using yellow vein mosaic resistant variety Varsha Uphar, under subtropical conditions of Jammu was carried out at Vegetable Experimental Farm, FOA, SKUAST-Jammu, Main Campus, Chatha. The experiment were laid out in split plot design with five levels of inorganic fertilizers in summer 2008 and 2009 in experiment first and second i.e. 0%, 25%, 50%. 75% and 100% of RDF (60:30:30 :: N:P:K) and two methods of biofertilizer application i.e. seed and soil application with three biofertilizers. Azospirillum, Azotobacter and PSB in experiment first. And, in 2nd experiment other than these inorganic fertilizer levels, soil treatment of Azospirillum @ 5kg per ha. vermicompost @ 6 tones per ha and FYM @ 25 tones per ha were used. There were 30 treatment and 20 treatment combinations in experiment first and second respectively, keeping 45 x 30cm spacing. The results revealed that fruit diameter, marketable yield and microbial biomass were highly influenced and statistically significant in experiment first with 75 per cent of chemical fertilizers and seed treatment of Azospirillum. 75 per cent of chemicals fertilizers with soil treatment of Azospirillum was statistically significant in stem diameter, seed vigour index, germination percentage, 100 seed weight, seed yield and nutrient uptake in experiment second. In experiment first, plant height and stem diameter were at par with 50 per cent RDF in inorganic fertilizers as well as seed treatment in PSB with 75 per cent RDF and seed treatment of Azospirillum. branches per plant, fruit length, fruit weight and germination percentage were at par with 50 per cent and 100 per cent RDF and seed treatment with Azospirillum. In experiment second. 75 per cent of RDF with soil treatment with Azospirillum was at par for marketable yield, dry matter accumulation, lacination index and microbial biomass with 50 percent and 100 per cent RDF. The interactions found significant in both the experiments first and second for internodal length, number of fruits per plant, fruit length, marketable yield per plant, 100 seed weight and seed yield per plot per hectare, recording the minimum values for intermodal length and maximum values for other traits in treatment combination C<sub>3</sub>T<sub>2</sub> in both the experiments.
Keywords: Okra(Abelmoschus esculentus), RDF, Biofertilizers, Organic fertilizers.
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