Complex sentence: The air temperature must be maintained within an ideal range, typically with deviations no larger than 10 deg C. with a cooler night and warmer day, and if adequate levels of CO 2 are maintained in order for the plants will grow most efficiently.
Split into simpler sentences: The air temperature must be maintained within an ideal range, typically with deviations no larger than 10 deg C. with a cooler night and warmer day. Adequate levels of CO 2 must be maintained in order for the plants to grow most efficiently.