Originally Posted by spex420
just the facts mam :
24/0 is best. -Ed Rosenthal
This is a direct quote from Ed Rosenthal whom most of you know is a marijuana growing guru:
marijuana plants photosynthesize as long as they receive light as well as water, air, nutrients and suitable temperature. Photosynthesis is the process in which plants use the energy from light (primarily in the blue and red spectrum's) to combine carbon dioxide (CO2) from the air and water
sedimentary rock made up of calcium and magnesium carbonate. It can be of a coarse or fine grade and even a powder. The finer the grade the faster it will act so we are only concerned with the fine grade or the powder. The powder giving almost instant results and the fine grade taking a few weeks to start to buffer the soil back up to near pH7. The ratio of calcium to magnesium is about 3:1. Most soils already contain some lime in some form but all seem to be lacking the right amount.
So you have decided to grow some 'Marijuana'. Good choice my friend but what soil are you going to use and how do you know wether it will do the job or leave you with a dead plant? There is no easy way to explain the intricate nature of soil, it is a complex mix of many additives, minerals, semi composted and composted material, microbes, bacteria and normally peat. Most soil companies like to give you a few weeks of nutrients to allow for strong growth
Originally Posted by 5000joints
It seems that this is the only website the advocates NOT flushing. Jorge Cervantes flushes, Ed Rosenthal flushes, Green House Seed Co flushes. Everyone with incredible experience with growing FLUSHES.
It gets out the salt buildup in the rootzone before flipping them and it gets rid of the nutrients stored in the leaves and roots before harvesting.
WHEN - as soon as the trichs are 75% milky and the hairs are turning red on the top 30% of the plant.
I flush for
Originally Posted by apbx720
imo u have a Ca def ( if u dnt see any bugs). this chart shows which nutrients are taken in at any given ph.
hydro on the left. u can see that yr plant cant uptake Ca if ph never drops below 5.9 or so.
may i suggest setting yr ph to 5.6 to start. naturally yr ph will rise. once it rises to 6.3, drop it back down to 5.6. this way yr plants will be able to intake all necessary nutrients during the swing. it looks like the wild