Abstract
An experiment was conducted to study the effect of planting time and fertilizer dose on growth, yield and quality of cucumber (Cucumber sativa L.) var. Pusa Seedless Cucumber 6 under two different protected structures. Experiment was laid out in factorial randomized block design with 3 replications. The treatments were formulated with four fertilizer levels (15:7:16, 20:12:21, 25:17:26 and 30:22:31 kg NPK/ha) and three date of plantings (15 August, 1 September and 15 September) under two different protected structures (insect proof nethouse and naturally ventilated polyhouse). Among the combinations, 15 September planting with 30:22:31 kg NPK/ha showed highest interaction effect for number of fruits/plant (20.20), fruit weight (134.11 g), yield/plant (2709.1 g), yield/1000 m2 (180.61 q), nitrogen (59 mg/100 g), phosphorus (27.33 mg/100 g), potassium (150.0 mg/100 g), calcium (11.29 mg/100 g), iron (0.23 mg/100 g) and zinc (0.22 mg/100 g) content of fruit under polyhouse. Based on these findings, it is recommended that the application of fertilizers at the rate of 30:22:31 kg NPK/ha on 15 September planting under naturally ventilated polyhouse is economical and found suitable for the successful growth, yield and quality of cucumber for higher productivity.
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