plenty........ sativa isn't an excuse for how bad that looks
The sativa hybrids are much different than the landraces.
I want to hook my brother up with a true sativa to grow in the Caribbean, and have been looking into strains etc. I'm looking for pure lines.
Edit: to stay on topic, I've had best luck with stuff like miracle grow 20-20-20, Marine cuisine 10-7-7, biotone starter plus 4-3-3. Lately I've been dabbling with organic amendments only and straight water.
I'm also looking at maxsea products, they offer a 16-16-16 I believe.
Note that all these products have N in sufficient quantities
I'm by no means an expert, but I do better (at growing) when I just give them a balanced food the whole way, and they do better too.