homebrewer
Well-Known Member
Yes it is good to be able to reduce nitrogen in flowering and increase potassium and phosphorous. Megacrop, that uses calcium nitrate correct? So dropping cal nitrate may leave you hanging for calcium.
I have found my 3 part GH flora series is still my go to, with stuff like calimagic, armor si, MKP, potassium sulfate.
Someday I may try to replicate the GH products using dry salts and see if I can manage to save money but for quality I have figured out a formula with GH that actually does extremely well in both veg and flower, just adding a little MKP in late flower and reducing micro a tad is all I do.
I have found veg is very tolerant of feeds and often a good flowering feed is sometimes good for veg believe it or not.
MC is a 1-part so to tweak your NPK in flowering one would have to cut back the base and add a booster. That doesn't give one a lot of flexibility though and to be honest I don't know that one needs a lot of flexibility in flower. The ability though to sort of scale back N after a couple weeks would be nice. The Green Leaf folks do offer a 0-19-39 booster but adding that product kind of cuts into the 'cost of use' which seems to be a big selling point for a lot of people.