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February 06, 2012

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John

Hi, I've been enjoying your site, but I honestly am having trouble really understanding what a SIP is, and how to construct one properly. Perhaps you could address the following:

1)What is the advantage of a SIP, aside from less frequent watering?
2)Is there nutrient solution in the water below?
3)What material do you use for capillary action?
4)Is it not a problem to have roots sitting in stagnant water?
5)What is really going on in the last picture in this post? Is that soil-less root mass below the first visible line?
Are the roots a solid mass, or growing around a plastic planter?

Al

Wiki:

"Hydroponics is a subset of hydroculture and is a method of growing plants using mineral nutrient solutions, in water, without soil. Terrestrial plants may be grown with their roots in the mineral nutrient solution only or in an inert medium, such as perlite, gravel, mineral wool, or coconut husk."

Subirrigation is NOT the same. You are not mixing nutrients into the water.

That means all nutrients are derived from the soil. OR you may be using a fertilizer strip. In this case, the soil depth cannot exceed capillary action. Otherwise the top of the soil will dry out & so will your fertilizer strip.

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