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Help with heat lamp design for crop drought research


bog_23

Hi,

I'm designing a benchtop greenhouse experiment to study drought effects on crops. We have 24 cabbages growing in a 100 x 140 cm area. We're after a top-down warming system, suspended approximately 50cm above the crops, to warm the crops as uniformly as possible. This is to mimic the sun and cause evapotranspiration (water loss from the plants and soil). A second, equal design will have some slats between the heat source and the crops that block some of the heat.

I'm currently thinking having a few linear infrared bulbs setup.

My question is: Which type of bulb, what wattage, how many, and which fitting? We want to direct the heat to our experiment without heating elsewhere too much (e.g. neighbouring benches). Or is a different setup a better idea?

Many thanks in advance.

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