Agriculture Reference
In-Depth Information
has higher levels than N and K. You may want to add secondary
nutrients once every 3 weeks to your grow. Epsom salts is a great way
of giving your plant Mg, which is probably the most important
secondary nutrient.
AIR
During vegetative growth and flowering, cannabis plants love
to get fresh air. Always keep a window open and let your grow room
refresh itself every day. The fresher the air the better. Also during the
dry periods, in between watering, the roots like to breathe. Fresh air is
always the best air. During winter you may want to reduce the time
you leave the windows open as the cold may stunt growth. Just refresh
the air in your room for 15 - 20 minutes during winter and close it
again.
If your grow is enclosed then use fans to extract the old air
and another fan intake to refresh the system.
HUMIDITY
Cannabis plants work best in the 40 - 80 percent relative
humidity area. rH (relative humidity) is the amount of water in the air.
Fresh air always is the best way to control humidity. If you have a rH
measuring kit you can judge for yourself how much fresh air you need
before hitting the optimum 60% level.
