For saving space and soil, this method also has several
other benefits, including no soil-borne diseases, no
weeds to pull and no soil to till, run-of-the-mill side
benefits of soil-less gardening.

Aggregate Culture.

This method is often referred to as "sand culture" or "gravel culture." Aggregates are used much as soil is used in conventional plantings - to provide anchorage and support for the plants.

Hydroponic Book

The aggregate in the tank or container is flooded with a nutrient solution as required. The advantages of this system of hydroponics over the water-culture method are lack of trouble in aerating the roots, ease of transplanting seedlings into the gravel or other aggregate medium, and less expense.


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