The definition of Protected Agriculture is: 'the modification of the natural environment to achieve controlled or improved plant growth.' Protected agriculture can include:
- Mulches of organic or synthetic materials placed on the soil around the plants to make conditions more favorable for plant growth.
- Shade cloth to protect plants against high light intensity.
- Plastic row covers to protect young plants against the cold early in the season
- Open-sided, plastic roofed structures to protect against rain
- Totally enclosed structures, or “greenhouses”
- Controlled environment agriculture (CEA): The “ultimate” in protected agriculture. The growing of plants, usually in a greenhouse or totally enclosed structure (e.g., growth chamber), with control at the aerial and root levels of temperature, humidity, gas composition, light, water, growing medium and plant nutrition
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