Yield response of parthenocarpic cucumber to irrigation and fertigation,grown under polyhouse condition

Abstract

Impact of the experimentation of irrigation and fertigation on yield of parthenocarpic cucumber under naturallyventilated polyhouse was carried out for two seasons during 2019-20 and 2020-21 at Hi-tech Horticulture unit, AgricultureResearch Station, University of Agricultural Sciences, Dharwad. The experiment was conducted to study the effect ofdifferent irrigation regimes (I) at I1-(60 % ETc), I2-(80 % ETc), I3-(100 % ETc) and fertigation levels (F) - F1-(60 % RDF),F2-(80 % RDF), F3-(100 % RDF), F4-(120 % RDF) and their interaction on cucumber hybrid under naturally ventilatedpolyhouse. The studies indicated that there is a significant influence of irrigation and fertigation on growth and yield ofparthenocarpic cucumber under polyhouse condition. Among the treatment combinations I2F4 (80 % ETc and 120 % RDF)has recorded highest plant height at 90 days after planting, least days taken for first harvest (35.53 days)with more numberdays for final harvest (111.65 days), highest fruit length (15.65 cm), higher average fruit weight (158.13 gm), higher numberof fruits per vine (24.76), higher yield (18.40 kg m-2) (92.01 q 500m-2) and (184.02 t ha-1). The significant increase in yieldwas due to better utilization water at 80 per cent ETc and 120 per cent recommended dose of fertilizers by reducing thepercolation losses of water and reduction in leaching of nutrients where as compared to other treatment combinations.