No, Ohsogreen is wrong. DO NOT use grow big during flowering because it contains more N than P. 6% to be exact. Only in ur veg stage do u use more N than P and when in flowering stage use more P than N. So typically for the first month you can use fox farm grow big etc.. but depending on the strand veg stage can range from 4 to 6 weeks. When plants enter flowering stage switch to fox farm tiger bloom (highly recommended) etc.. or anything that is high in P. Bat guano high P is liquid or dry is fine. Remember, when moved to 12/12 the plant should recieve no light once the lights go for the best results.
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Atlantabud..... I have been growing for 30 years and not one person in that time, has proven to me that NO N during flowering yielded any better, than providing some N.
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I recommended 1/2 strength on the Grow Big, that dial the numbers down to 3-2-2. Used in conjunction with the 0-4-0. That makes 3-6-2. Which, makes for a higher P, than N.
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Bumping up the 0-4-0, to double strength. Makes that combo 3-10-2 That or the 3-6-2 are both fine for flowering. If you noticed, I recommended dropping to 1/4 strength the last month on the Grow Big, that drops it to 1.5-1-1 used with the liquid guano, it will not be too much nitrogen. That corrects the NPK value to 1.5-5-1 or 1.5-9-1, if you double the 0-4-0.
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Withholding all N will cause the plant to pull N from the fan leaves quicker. The fan leaves are your sugar factories to feed the buds during flowering. No N is not a wise way to go.
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Don't buy into the Big Hydro Fert companies BS about you need their three part nutes to grow. You don't. They just break them down, to make more money off growers.
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In nature, NPK is present in the soil during the whole grow. Mary has survived thousands of years without our help. Mary takes in what she needs, as she needs it. If you deprive her of N, you are just causing a premature finish, which equals less yield.
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Hope this helps....
Keep it Real....Organic.....
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P.S. - As a matter of etiquette, I use the words " I disagree with" instead of saying Atlantabud "is wrong".
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