True Living Organics - The Ultimate Guide to Growing All-Natural Marijuana Indoors (2012)

I recommend Whitney Farms Unsteamed Bone Meal as it has always been a great product for me
Unsteamed bone meal, however, does not piss off the good fungi, and is a slow- and longrelease
phosphorus amendment. That’s exactly how the plants need phosphorus: slow and steady. Plants can’t
take up a lot of phosphorus at any one time, so use the unsteamed bone meal globally as a buffer for
pH and as a source for slow phosphorus, calcium, and nitrogen release. Use steamed versions of bone
meal for spikes and layers only! Even though both of these types of bone meal (steamed and
unsteamed) have N-P-K ratings of 3-15-0, it is important to understand the difference in the release
rates as this is what makes all the difference in TLO growing.
Bulb food is something I like to add to the soil mix globally in small quantities. The buffering from
the calcium content of this, and the high levels of potassium (K) and phosphorus (P) with a little
nitrogen, makes this one a winner with a low enough P ratio to not impact the fungi negatively when
added globally in small amounts. A standard N-P-K ratio of bulb food would be 3-8-8. The bulb food
slowly releases P and K for a very long time, and very slowly, just like the plant prefers. Good stuff,
Maynard.