Vol. 12, Special Issue 12 (2023)

The experiment was laid out in large plot technique design with five replications comprising of total five treatment combinations. The five treatment consists of T₁: Soilless Media (Coco-peat grow bag), T₂: Soil Media, T₃: Coco-peat + Soil (1:1), T₄: Vermicompost + Soil (1:1), T₅: Coco-peat + Vermicompost + Soil (1:1:1). Healthy seeds were sown on grow bag and soil bed at 0.60 m × 0.30 m spacing, during the month of March, 2021. Irrigation was supplied to the crop through drip irrigation system and. Cultivation practice was carried out as per recommendation.

The daily environmental data i.e. air temperature, RH, PAR, soil temperature and soil moisture were recorded at every three hours of interval and computed weekly and monthly average for analysis. The influence of these factors on summer cucumber was analyzed in terms of vine length, no. of fruits per vine, weight of fruit per vine, dimension of fruit (length and diameter) and crop yield per treatment. Five plants from each treatment were selected for each replications and an economic analysis was also done to determine the financial viability of the structure as well as different treatment cost.

The temperature reduction in Polycarbonate greenhouse was observed 7.24 °C as compared to open field condition. The relative humidity increased in Polycarbonate greenhouse was observed 29% as compare to open field condition. The PAR in Polycarbonate greenhouse was observed 623.24 uM/m²s maximum at 15:00 hr and 178.39 minimum at 18:00 hr. The maximum soil temperature was observed 39.9 °C in treatment T₁ (Soilless media having Coco-peat) and minimum in treatment T₂ (Soil media) of 37.5 °C.