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Automatic Greenhouses in Desert Agriculture

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Questions and Answers

What is the main advantage of automatic greenhouses?

Reduced labor costs
Increased yields and improved crop quality
Reduced water and energy consumption
Avoiding human error (correct)

What is the optimal temperature range for sweet pepper production in a greenhouse during daytime?

21-27°C (68-77°F) (correct)
Below 50% RH
15-21°C (59-64°F)
60-70% relative humidity (RH)

What is a challenge of automatic greenhouses according to the text?

Reduced labor costs
Optimal growth conditions
High initial cost (correct)
Increased yields and improved crop quality

Which factor can lead to wilting and blossom end rot if below the critical threshold?

60-70% relative humidity (RH) (C) Signup and view all the answers

What does a greenhouse climate digital control system consist of according to the text?

Sensors to measure the factors to be regulated (C) Signup and view all the answers

Why is soil sterilization important in greenhouse agriculture?

To eliminate disease-causing organisms and control weed seeds, but it may lead to loss of beneficial microorganisms. (B) Signup and view all the answers

What is the primary concern associated with fumigation as a method of soil sterilization in greenhouses?

Highly effective in killing pathogens but may raise concerns about human health and environmental impact. (C) Signup and view all the answers

Why might some cultivars grown in greenhouses not require pollination?

Because they are either self-pollinating or parthenocarpic, meaning they can produce viable seeds without external pollination agents. (B) Signup and view all the answers

What is the main advantage of using solarization as a method of soil sterilization in greenhouses?

It raises temperatures to kill pathogens by trapping solar heat, but requires specific weather conditions and long exposure times. (A) Signup and view all the answers

What is the importance of self-pollination in greenhouse agriculture?

It allows plants to produce viable seeds without the need for external pollination agents like wind, insects, or animals. (A) Signup and view all the answers

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