“Hydroponics” literally means “water works”. It is a method of growing plants in a water/nutrient-rich solution, without soil. Although in theory any plant could be grown hydroponically, in practice hydroponic gardening is usually reserved for exotic plants and flowers, or for “greenhouse” style vegetables, such as lettuce, tomatoes, peppers, cucumbers, melons and culinary herbs.
Hydroponics also has an important place in the classroom. Experimenting with hydroponics helps students better understand how plants grow. For example, by withholding certain nutrients from the hydroponic solution, students can observe firsthand how plant growth is affected, then take steps to correct the deficiencies. Other experiments can be done with water quality, lighting, temperature and humidity control, and even carbon dioxide levels. In short, a hydroponic garden is a practical way for any school to set up an excellent botany lab in a controlled environment.
The PDF, Introduction to Hydroponics: Seed to Harvest provides a great overview about hydroponics.
Read more about teaching hydroponics, check out some additional materials in the Teacher’s Lounge, or contact Horizen Hydroponics with any questions about how hydroponics education can help your students learn… Hands On!
Check out the PDF’s below for more reading about Hydroponics and specific reading about Lettuce, Herb and Tomato Production.