theres absolutely nothing wrong with manure just dont use chicken poop it is bad for the plants,if you have rabiit poop that is the best stuff..but there is nothing wrong cow poo use it and enjoy,just dont use it as your only fertalizer since towards the end your going to need a bloom fertalizer......but ive grown with just cow/horse manure for the whole grow with wonderful results.nothings change since the old days.!

some people here dont use it because they think spending money on fertalizer is better than the old fashion way.and they also think it can hurt the plants but it doesnt so use it...

now for growing in a forest under tress not so good as you need as much direct sunlight as possible im from the east coast "ct" and grew with no problems just hide them well,clip the tops so they dont have the xmas tree look,pull them down as they are vegging the makes for a bigger yeild....theres ways around everything....but if you know what camoflauge is then you will be good