Flashcards
Soilless growing systems
Cards in this deck (15)
- 1When did we start using modern soilless growing systems?1970's
- 2What is the principle of soilless growing systems based on?A container holding water with nutrients to feed the plant.
- 3Is there only one soilless growing system?No, over the years different systems evolved to suit different growing conditions.
- 4What is the nutrient film technique that we mainly use today?A thin film of water, which contains different nutrients, moves along the bottom of a pipe into which the roots of the plants are placed.
- 5Does the nutrient film technique use a lot of water? Why?No, the water is continually recycled. So the water needed to grow plants in this way is much less.
- 64 reasons why soilless systems are more effective than soil-based systems: 11. No soil pathogens (germs) in contact with roots.
- 74 reasons why soilless systems are more effective than soil-based systems: 22. No organisms which can feed on roots.
- 84 reasons why soilless systems are more effective than soil-based systems: 33. Water efficient.
- 94 reasons why soilless systems are more effective than soil-based systems: 44. Easy to move plants around without hurting them.
- 104 disadvantages to soilless systems: 11. Needs electricity to pump water through the system.
- 114 disadvantages to soilless systems: 22. If the water supply is off, the plant will wilt quicker than if it were in the soil.
- 124 disadvantages to soilless systems: 33. More expensive to start up.
- 134 disadvantages to soilless systems: 44. Need expert advice/knowledge.
- 14Why is soilless growing the future of farming? 2 reasons.1. Decreasing amount of arable land.
2. Decreasing amount of usable water. - 15What will soilless growing systems mean for people living in cities?They can incorporate food production into their daily lives.
People in cities will be able to grow their own food.
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- Liesl Marais
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