Yes, Global Warming really is happening, and the evidence is overwhelming. September 23 at 5:26am Â·. Rignotâs team found that Greenland's glaciers flowing into the ocean are grounded deeper below sea level than previously measured.
If you want your marijuana plants to start pre-flowering just change the light cycle to 12 hours on and 12 hours of complete darkness. Why does this work, well letâs think about how plants are in their natural environment.
To stay in the vegging phase requires a minimum of about 14 hours of continuous light to emulate the longer days of late spring and summer. Longer cycles will not harm your plants as they have no need of âsleepâ; thus many growers opt for a 24 hour light cycle. Others believe that marijuana need some âdown timeâ to catch up on other physiological processes and will run their lamps 18/6 or 18 hours on and 6 hours off. This also saves some electricity and allows night temperatures to drop, but will marginally slow growth.