High all,
I need some really basic scientific help with my choice of soil which is very limited. I can either use a potting soil (VAM Bloemenerde) which is slightly alkalline and full of self releasing nutes, or use a soilless mix (50%Peat Moss, 50%Perlite) and add the nutes myself. The only thing is that we don't have US/UK household names like Pro-mix, BioBizz,etc in my part of the world.
So I need to know how to balance the NPK proportion for each stage if I go with the soilless mix. Knowing that AFs don't have a veg stage, would it be enough to add flowering nutes after the third week and stop just before harvest? It somehow seems wrong to me cause plants need Nitrogen to develop in the early stages, and like this they will be living off water alone until flowering.
HELP!