I mean it could be that the course is a little more focused on commercial grows, and with vermiculite being rather expensive it might be they are offering this as an alternative that is a little cheaper. If your Ca content is 65ppm I would think that is a little on the low side compared to the...
Pretty sure its in the paid university course here is a link to the thread. I mean there is no one right answer or single way to grow, this method may increase yields by some percentage but you can grow in dirt and still make decent bud. The fertilizer method I was excited about as it would...
Interestingly enough somebody posted on overgrow stating that in the lecture videos they utilize 75/25 peat to vermiculite, stil 20-10-20 but they supplement silica, Phosphorus, and copper
Well I bought some 20-10-20 locally, pretty cheap for 11kg, something like $35. Doing the math in hydro buddy though shows I probably should add some gypsum (around .2g per liter, and some epsom salts to supplement the ca and mg) I am by no means an expert but is the K levels also not a little...
Seems like a very interesting method. The soil composition is definitely a little different from traditional perlite and peat with lime. But the fertilizer is a pretty decent swing from even going for the Jack's method and would probably be a decent deal cheaper. And quite simple as it is a...