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What are the pros and cons of hydroponics and the pros and cons of growing plants in soil?

ADVANTAGES OF HYDROPONICS

Some of the reasons why hydroponics is being adapted around the world for food production are the following:

* No soil is needed
* The water stays in the system and can be reused- thus, lower water costs
* It is possible to control the nutrition levels in their entirety- thus, lower nutrition costs
* No nutrition pollution is released into the environment because of the controlled system
* Stable and high yields
* Pests and diseases are easier to get rid of than in soil because of the container’s mobility

DISADVANTAGES OF HYDROPONICS

The hydroponic conditions (presence of fertilizer and high humidity) create an environment that stimulates salmonella growth. Another disadvantage is pathogens attacks including damp-off due to Verticillium wilt caused by the high moisture levels associated with hydroponics and overwatering of soil based plants. Also, many hydroponic plants require different fertilizers and containment systems

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that’s a hydroponics or Aeroponics system of growing, but what is this brown thing where the plants are grown from? it’s a round shape.

“and cuttings are held in place with expanded clay pellets.”

Quote from

http://www.simplyhydro.com/growing2.htm

“This man-made product is often called grow rocks and is an extremely good growing medium. It is made by baking clay in a kiln. The inside of the clay pellets is full of tiny air pockets (much like lava rock) which makes this a light weight medium (some of the pellets even float).

The pellets are great for ebb & flow systems or other systems that have frequent watering cycles (clay pellets do not retain much water so they need to be watered often so that the roots of your plants do not dry out). The rocks are often mixed with other growing medium(s) to increase oxygen retention.”

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