Soil solarization for the control of soil-borne pathogen complexes with special reference to Meloidogyne incognita and Fusarium oxysporium f.sp. ciceri
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Authors
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V. KRISHNA RAO1 and K. KRISHNAPPA2
1 A.P. Agrt. Universitv, RARS, Lam Farm, Guntur 522 034, A.P., India
2 Department of Plant Pathology, University of Agricultural Sciences, GKVK, Bangalore 560 065
Keywords:
Soil solarization, chickpea, Meloidogyne incognita, Fusarium oxysporum f.s. sp. ciceri, pathogen complexAbstract
A field study was conducted to investigate the effect of soil solarization on the control of the M. incognita/F. o. f.sp. ciceris complex which is pathogenic to chickpeas. Solarization by covering soil with clear transparent polythene sheets for 6 weeks during the hot summer months caused an increase in soil temp. (8degC) and conservation of soil moisture (5%) compared with unsolarized control. These soil conditions resulted in a significant reduction in population densities of M. incognita (58.1%),F. o. f.sp. ciceris (80.8%), weeds (80.6%) and their DW (90.5%). The availability of soil nutrients was increased by soil solarization but the physical and chemical characteristics of the soil remained unchanged.
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