Sappy.Hour
- 41
- 18
As the title suggests I am experiencing nitrogen deficiency at the beginning of week 3 of 12/12. A little about my grow.
Lighting: 400w mh/hps
Room: 3x5x6’
Medium: sunshine #4 with worm castings.
Nutrients: compost teas for the most part with a little fish emulsion (grow and bloom)
PH: 6-6.5 (feed and plain waterings) Run off is about the same.
All the wind and air flow a guy needs. It seems like I’m nitrogen def and I don’t understand how. 5 days ago they were green and happy to the point they almost had too much food and the tips were just beginning to burn!!
The only variable I have changed is the lighting from metal halide to hps. I always keep the mh on until the preflower stretch is complete then switch to hps.
Question #1: Do plants use/uptake nutrients differently under different lights? Eg, would a plant use more or less say, nitrogen, under a metal halide than it would under a hps?
Question 2: Is using organic amendments and nutrients in soilless mediums just plain silly?
Lighting: 400w mh/hps
Room: 3x5x6’
Medium: sunshine #4 with worm castings.
Nutrients: compost teas for the most part with a little fish emulsion (grow and bloom)
PH: 6-6.5 (feed and plain waterings) Run off is about the same.
All the wind and air flow a guy needs. It seems like I’m nitrogen def and I don’t understand how. 5 days ago they were green and happy to the point they almost had too much food and the tips were just beginning to burn!!
The only variable I have changed is the lighting from metal halide to hps. I always keep the mh on until the preflower stretch is complete then switch to hps.
Question #1: Do plants use/uptake nutrients differently under different lights? Eg, would a plant use more or less say, nitrogen, under a metal halide than it would under a hps?
Question 2: Is using organic amendments and nutrients in soilless mediums just plain silly?