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newpsyaccount32 t1_j7wn87z wrote

first, i'd like to state that i fully agree with you.

second, i'd guess that they did this because these differences are typical to most grow situations. lots of guys growing outside prefer to use soil and compost tea. lots of guys growing inside prefer some sort of media blend with bottled nutes.

basically, these are two opposite ends of the growing spectrum. still, the fact that they did not control all possible variables means that this study is useless for comparing sunlight vs lights.

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arborite t1_j7wqas6 wrote

That's true but showing differences exist at all allows them to request additional funding to separate out the variables.

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