Validation and economic analysis of adaptable integrated management technology against root-knot nematode (Meloidogyne graminicola) in rice (Oryza sativa) with farmers’ participatory approach
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Authors
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Y SOMASEKHARA
University of Agricultural Sciences, GKVK Campus, Bengaluru, Karnataka 560 065
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MUKESH SEGHAL
University of Agricultural Sciences, GKVK Campus, Bengaluru, Karnataka 560 065
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N G RAVICHANDRA
University of Agricultural Sciences, GKVK Campus, Bengaluru, Karnataka 560 065
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D K SIDDEGOWDA
University of Agricultural Sciences, GKVK Campus, Bengaluru, Karnataka 560 065
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R K JAIN
University of Agricultural Sciences, GKVK Campus, Bengaluru, Karnataka 560 065
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P MAHADEVU
University of Agricultural Sciences, GKVK Campus, Bengaluru, Karnataka 560 065
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K R RAVINDRA
University of Agricultural Sciences, GKVK Campus, Bengaluru, Karnataka 560 065
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RAMAKRISHNA RAMAKRISHNA
University of Agricultural Sciences, GKVK Campus, Bengaluru, Karnataka 560 065
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H R SARDANA
University of Agricultural Sciences, GKVK Campus, Bengaluru, Karnataka 560 065
Keywords:
Farmers’ Participatory Approach, Meloidogyne graminicola, Nematode management, Rice, Root-knot nematodeAbstract
Wider area validation and economic analysis of adaptable integrated root-knot nematode (Meloidogyne graminicola) management technology in rice (Oryza sativa L.) in farmers’ participatory approach was carried out in adopted village Akkihebbalu, K.R.Pet, Mandya district, Karnataka during 2008, 2009 and 2010 in the 437 acre area covering 167 farmers’ families. Integrated nematode management technology (INMT) for rice comprised raising rice nursery in cabrofuran (0.3g a.i/m2) treated beds followed by its field application @ 1 kg ai/ha 40 days after transplanting (T1) or applying Pseudomonas fluorescence @ 20 g/m2 in soil nursery (T2) or seed treatment of rice with Trichoderma viride @ 4 g/kg seed in nursery (T3). The adoption of INMT resulted in reducing the nematode population from 320 J2/200 c.c soil as initial nematode population to 135(T1) ,165 (T2) and 192 (T3)/200 cc of soil in the respective treatments thereby leading to increase yield 4.72 tonnes/ha, 4.67 tonnes/ha and 4.29 tonnes/ha in T1,T2 and T3 respectively, in comparison to 3.81 tonnes/ha in untreated control (T4).
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References
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Khan M R, Ghosh S and Bhattacharya S P. 2004. Weed hosts of rice root-knot nematode, Meloidogyne graminicola from West Bengal Environment and Ecology. 22 (Spl-3): 583–4.
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