Probiotics - which to use, how to expand, how to dose and how to store
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  #31  
Old 01-10-2022, 07:34 AM
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Probiotics - which to use, how to expand, how to dose and how to store Male
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Well Keith, for years and years and years, all I heard was that “overwatering causes root rot”, when my experience with semi-hydroponics showed that to be totally untrue, and it is possible to grow plants with their roots totally submerged (I have a photo of a reed-stem epidendrum growing in a wine carafe of water, given to me by TZ many, many moons ago, that I used in my society presentation on S/H culture).

I concluded that the issue with overwatering was suffocation, and have seen no proof otherwise. So - yes - I believe me, and am gratified that you concluded that it has become common knowledge.
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Old 01-10-2022, 10:12 AM
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Originally Posted by Ray View Post
Well Keith, for years and years and years, all I heard was that “overwatering causes root rot”, when my experience with semi-hydroponics showed that to be totally untrue, and it is possible to grow plants with their roots totally submerged (I have a photo of a reed-stem epidendrum growing in a wine carafe of water, given to me by TZ many, many moons ago, that I used in my society presentation on S/H culture).

I concluded that the issue with overwatering was suffocation, and have seen no proof otherwise. So - yes - I believe me, and am gratified that you concluded that it has become common knowledge.
But Ray, how much oxygen do you think there is in stagnant water in an gas-impermeable glass container? My inclination is to conclude that the success of S/H and H proves that suffocation is not the mechanism that causes root death in broken down media. This was the genesis of my post months ago speculating on a variety of other possible factors that could cause orchid root death in old media. I'm not saying you're wrong, but only that it appears to me that the evidence suggests that you are wrong.

Is it possible to measure the O2 in a beaker without changing the result when getting a sample?


-Keith

P.S. This very interesting topic (IMO) could end up as a diversion from the thread topic suitable to be moved to a separate thread. Mod judgment call.
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