Agronomy Degree Practice Exam

What is the method called where plants grow in a water and nutrient solution without soil?

1. Hydroponics

2. No-till

3. Conservation farming

4. Strip planting

The correct answer is: Hydroponics

The method where plants grow in a water and nutrient solution without soil is termed hydroponics. This innovative cultivation technique allows the roots of plants to be directly immersed in a nutrient-rich water solution, which promotes rapid growth and efficient nutrient uptake. Hydroponics offers numerous advantages, including higher yields, year-round production, and the ability to grow in areas with poor soil conditions. In this system, the absence of soil reduces the risk of certain pests and diseases, facilitating a more controlled growing environment. Various hydroponic systems, such as nutrient film technique (NFT), deep water culture (DWC), and aeroponics, illustrate the versatility of this method, enhancing its applicability in both commercial agriculture and home gardening. The other options relate to different agricultural practices that focus on soil management and conservation rather than soilless cultivation.