Propagation: Coconut coir stunted growth, yellow seedlings??, 1 by rebelhead

rebelhead wrote:
yeah i started these roma tomato in perlite. then transplanted to either peat, perlite, fresh pine bark fines, or composted pine bark fines. all are fed with chemgro 10-8-22. my experience with bark has been poor. this pic is a week old. there is even greater differences now. the peat and the perlite plants are twice the size of the ones in composted bark. the one in the fresh bark is ok, but not as good as the peat or perlite.
from left to right. peat ,perlite (i covered the top with bark to stop evap), fresh pine, and composted fines.