For annual horticultural crops (vegetables like tomato, chilli, capsicum, melons, and strawberries), the standard desirable film thickness is $20 - 25\text{ microns}$ (range $10 - 25\text{ microns}$ / 100 gauge).
This gauge ensures an optimal compromise between mechanical tear resistance, soil moisture conservation, weed suppression, and cost-effectiveness.
Thicker films ($50 - 100\text{ microns}$) are reserved for perennial orchard mulching or solarization.
Correct Option: Option 3 (10-25 micron).
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ICAR JRF Vegetable Science 29 Jun 2024Shift 1
MCQ (Single Correct)+4−1
What could be the size of a single-pan structure of green house?
In protected horticulture and Government scheme guidelines (MIDH / NHB), the standard modular floor area for a single-span naturally ventilated polyhouse structure is $250\text{ m}^2$ (typically measuring $28\text{ m} \times 9\text{ m}$ or $25\text{ m} \times 10\text{ m}$).
This modular dimension provides optimal natural chimney ventilation, manageable structural truss loading, and uniform microclimate.
Correct Option: Option 1 (250 sq meter).
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