Hopefully someone with some experience of NFT systems can help me out with a quick question. So the tray I will be growing in is 71cm x 40cm [28in x 15in], how many plants [I'm thinking White Widow or something similar] will I be able to grow in that area ?
Opinions will vary and it all depends on how large you plan on growing them as well, but to answer your blunt question bluntly, i'll stick with the 1 plant per square foot rule and say two.
