Greenhouses and Controlled Farming
What is a greenhouse?
A greenhouse is a structure made of glass or transparent plastic that allows sunlight to enter while trapping heat inside. This controlled environment helps regulate temperature, humidity, and light to optimize plant growth.
Why do farmers grow plants in greenhouses?
Farmers use greenhouses to:
- Protect crops from extreme weather conditions like frost, excessive heat, or heavy rainfall.
- Extend the growing season, allowing crops to be grown even in unfavorable climates.
- Control pests and diseases more effectively.
- Enhance crop yields by optimizing environmental conditions.
How do greenhouses help in plant growth?
Greenhouses create a stable environment with ideal temperature, humidity, and CO₂ levels. This leads to:
- Faster germination and growth.
- Increased photosynthesis due to better light absorption.
- Reduced risk of plant stress caused by external weather fluctuations.
- Protection from pests and diseases, leading to healthier plants.
What is the effect of CO₂ levels on plant growth?
Carbon dioxide (CO₂) is essential for photosynthesis, the process by which plants make food. Increased CO₂ levels in greenhouses can:
- Boost plant growth and yield by enhancing photosynthesis.
- Improve water-use efficiency in plants.
- Increase the production of fruits, vegetables, and flowers.
However, excessive CO₂ levels can be harmful and need to be carefully regulated.
Why do some plants grow better in controlled environments?
Some plants require specific conditions to thrive, and controlled environments like greenhouses or vertical farms provide:
- Precise temperature, humidity, and CO₂ regulation.
- Protection from pests, diseases, and unpredictable weather.
- Optimal nutrient supply through hydroponics or aeroponics.
- Consistent and high-quality crop production, regardless of the season.