sheikurbuti
Active Member
This is my second grow with this growbox setup. The intent is a small yield for personal use with two plants, hence the CFL lighting.
The soilless mix is as follows:
6 parts Sunshine Mix
2 parts perlite
2 parts earthworm castings
On the first grow, I also used 2 tablespoons of powered lime per gallon as a pH stabilizer, but I am not using lime this time, as it raises the pH. I've read that the pH for this strain needs to start at around 5.8 and slowly increase to 6.5 during flowering. I'm not going to worry too much about pH unless there are visible problems, but my mix started off at 6.7 and my RO water is 6.7 and tap water is 7.7. As the peat starts decomposing and fertilization starts, both should tend to lower the pH. Hopefully, all these factors will keep me in the right ballpark, as I didn't adjust for pH during my first grow, but maybe that strain (Blue Mountain Jamaican) was more robust?
I built a lighting fixture that will accomodate up to 6 CFL bulbs. I have available 5-42W 6500K for veg and 5-42W 2700K for flowering, but I will combine to provide a more complete spectrum.
The growbox is small: about 1 foot deep by 3 feet wide and about 3 feet high from the top of the planter to the height where the light fixture can be raised. Therefore, LST is critical to both maximize yield and limit height.
Feel free to comment anytime.
The soilless mix is as follows:
6 parts Sunshine Mix
2 parts perlite
2 parts earthworm castings
On the first grow, I also used 2 tablespoons of powered lime per gallon as a pH stabilizer, but I am not using lime this time, as it raises the pH. I've read that the pH for this strain needs to start at around 5.8 and slowly increase to 6.5 during flowering. I'm not going to worry too much about pH unless there are visible problems, but my mix started off at 6.7 and my RO water is 6.7 and tap water is 7.7. As the peat starts decomposing and fertilization starts, both should tend to lower the pH. Hopefully, all these factors will keep me in the right ballpark, as I didn't adjust for pH during my first grow, but maybe that strain (Blue Mountain Jamaican) was more robust?
I built a lighting fixture that will accomodate up to 6 CFL bulbs. I have available 5-42W 6500K for veg and 5-42W 2700K for flowering, but I will combine to provide a more complete spectrum.
The growbox is small: about 1 foot deep by 3 feet wide and about 3 feet high from the top of the planter to the height where the light fixture can be raised. Therefore, LST is critical to both maximize yield and limit height.
Feel free to comment anytime.
. Still bending the branches to expose the lower bud sites.
