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merrybookwyrm

does growth speed affect nutrient in edible plant for hydroponic?

merrybookwyrm
13 years ago

If you can point me to reading material about this question, please do.

I read that the USDA determined the nutrient content of vegetables grown in garden soil many years ago, often with cultivars that took more time to grow to effective size than modern cultivars take to grow to effective size. Somebody did a study recently comparing the nutrient values in new, fast growing culivars with those older ones reported by the usda. The result was that the newer, faster growing vegetables have less nutrients than did the old ones. It was wondered if this were true because the new plants didn't have enough time to collect nutrients before being eaten.

Since hydroponic vegetables are said to grow fast, is this a problem with them? Or does using the correct nutrient solution sidestep this problem?

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