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nft 02-04-2009 07:59 AM

the roots become brown
This is the best web page on hydroponics, the format and the picture illustration are great!!! I am a beginner in hydroponic in Thailand. I am growing lettuce with NFT ,after a few weeks of perfect growth, the roots become brown color and the plant growth is stunt. What is the problem and how to cure them?

Ron 02-04-2009 08:00 AM

Something isn't right with your nutrient solution if your roots aren't white. PPM or pH or both.

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