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A couple of more issues on this thread.
Arleneg
Coconut husks are a sterile medium. They have no natural micro bacteria in it, whereas, Bark will develop helpful microbes easier. Also not all coconut husks is the same. Salt levels vary greatly. It has no natural micro ingredients and it retains a lot of water.
For everyone, it is not normally mentioned, since companies think 'Bloom Boost' sells well, that PHOSPHORUS kills helpful microbes in the medium to the detriment of the plant. It may encourage flowering but a healthy plant with good light flowers.
I have started using Worm Tea because of the abundance of good microbes. These microbes attack harmful pathogens and fungi. This allows me to avoid chemical insecticides and fungicides. They can even eliminate harmful nematodes.
As top Urea based fertilizers, it is very common in Florida for commercial growers to use Peters which is Urea based. It is available in 50 pound bags and that makes it very cheap. I have never noticed a problem with Peter's Urea based fertilizers.
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jerry
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