Growing crops without soil

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Presentation transcript:

Growing crops without soil Hydroponics Growing crops without soil

Learning objectives Understand how hydroponics work List the advantages and disadvantages of hydroponics Give examples of crops produced using hydroponics

Hydroponics Hydroponics is a method of growing plants using mineral nutrient solutions, in water, without soil.

NPK Nutrients Nitrogen as ammonium or nitrates Phosphorus as phosphates Potassium (Potash) NPK

The Wick System

Greenhouse conditions ensure year round growth Advantages Greenhouse conditions ensure year round growth

Pests that remain in the soil after harvest are not present Advantages Pests that remain in the soil after harvest are not present

Very clean products and less damage during harvesting Advantages Very clean products and less damage during harvesting

Ensures that all the essential minerals are provided Advantages Ensures that all the essential minerals are provided

Relatively high investment in greenhouses and hydroponics equipment Disdvantages Relatively high investment in greenhouses and hydroponics equipment

Where? Achiltibuie

Questions Draw the diagram of the hydroponics equipment on page 38 and explain how it works. What are the advantages and disadvantages of hydroponics. Produce a list of crops that are suitable for hydroponics.