Hi, I'm on my 5th week of my first grow of Short Stuff Spanish Diesel Autoflowering Seeds and yesterday she looked like the attached image
I'm growing in BioBizz All Mix soil and have been feeding BioBizz nutrients with every watering which is once every three days. For weeks 2-3 I was giving about 0.3ml/l of Fish Mix, then in week 4 upped this to 0.5ml/l. The start of week 5 (3 days ago) I gave a feed of BioGrow (0.5ml/l) and BioBloom (0.5ml/l). The earlier feeds have had a PPM of 250 and my latest feed was 350, She's in a 3 gallon pot and I've been watering 2 litres, pH'd to about 6.4. With this amount of water I usually only have a dribble of run off.
Today I noticed what looks like nutrient burn - patchy yellowing of a couple of the lower leaves and quite a bit of yellow/orange tips higher up the plant. From what I've read this could also be light burn as I think nutrient burn travels up the plant and there are a lot of leaves between the lower and higher affected leaves which look completely healthy.
Anyway, I watered today with enough to give run off and when I measured the PPM it was off the scale. I have a Bluelab truncheon which goes up to 1800 PPM and the light was on this value flashing rapidly, which I assume means the actual reading is a lot higher. So I put about 8 litres of pH'd water through the plant and kept measuring the run off, the last bit came out at 1300 PPM and I've left it at that.
Questions:
I'm growing in BioBizz All Mix soil and have been feeding BioBizz nutrients with every watering which is once every three days. For weeks 2-3 I was giving about 0.3ml/l of Fish Mix, then in week 4 upped this to 0.5ml/l. The start of week 5 (3 days ago) I gave a feed of BioGrow (0.5ml/l) and BioBloom (0.5ml/l). The earlier feeds have had a PPM of 250 and my latest feed was 350, She's in a 3 gallon pot and I've been watering 2 litres, pH'd to about 6.4. With this amount of water I usually only have a dribble of run off.
Today I noticed what looks like nutrient burn - patchy yellowing of a couple of the lower leaves and quite a bit of yellow/orange tips higher up the plant. From what I've read this could also be light burn as I think nutrient burn travels up the plant and there are a lot of leaves between the lower and higher affected leaves which look completely healthy.
Anyway, I watered today with enough to give run off and when I measured the PPM it was off the scale. I have a Bluelab truncheon which goes up to 1800 PPM and the light was on this value flashing rapidly, which I assume means the actual reading is a lot higher. So I put about 8 litres of pH'd water through the plant and kept measuring the run off, the last bit came out at 1300 PPM and I've left it at that.
Questions:
- As the last run off was 1300, I'm guessing the PPM within the soil is actually lower than this now?
- Going forward should I water with just water and measure the run off, and only feed the next time (3 or so days later) if the PPM drops?
- Any other advice you can offer me?
