Blackvelvet
Member
Are you still using equal parts of grow, bloom, and micro? I figured ppms for this. Surprisingly, it works. 5ml per gallon each of micro, bloom, and grow gives you this:
n 102
k 136
p 39
ca 81
mg 30
This is still enough magnesium. If you want to add extra magnesium to this, you would not add more than 10 ppm mg. You want calcium at least double your mag. 81ca/2=40-30 in the 3part=10 ppm mg max. 80 grams in 80 gallons raises mg 26 ppm. (1g in 1 gallon = 26 ppm; 1/8 teaspoon per gallon = 15 ppm mg) With this amount of grow, micro, bloom you would add only 30 grams per 80 gallons. (1/2 teaspoon per 5 gallons) If you double the amount of grow micro bloom to 10 ml each, double epsom added. You should not need more than 7.5ml of each giving you 150 ppm n during veg growth. You would add no more than 45 grams epsom to 80 gallons.
What is going to happen? If you add too much magnesium, your going to end up with a calcium deficiency with top growth burning. There is ample potassium so I doubt potassium def will occur.
You had bad water with high calcium. This caused a magnesium deficiency even though there is enough normally in the ferts...
When flowering time comes, you could use the 3 part in equal portions and get ok results. Really no more than 5ml of each. It only has 39 p when the n level is 100 like you want. Considered low by some. Better to switch to 3/4 strength: 15ml bloom + 10 micro + 5 grow per gallon.
n 119
p 70
k 164
ca 121
mg 50
50 ppm magnesium is plenty so I don't suggest adding any epsom salts. If you do, don't add more than 10 ppm mg extra. 121 ca/2=60-50mg in the 3part=10ppm mg extra max. This would be 30 grams in 80 gallons max. (1/2 teaspoon per 5 gallons) Remember your aiming for at least 2:1 calcium to magnesium.
Hope everything works out for you Ray!
.
n 102
k 136
p 39
ca 81
mg 30
This is still enough magnesium. If you want to add extra magnesium to this, you would not add more than 10 ppm mg. You want calcium at least double your mag. 81ca/2=40-30 in the 3part=10 ppm mg max. 80 grams in 80 gallons raises mg 26 ppm. (1g in 1 gallon = 26 ppm; 1/8 teaspoon per gallon = 15 ppm mg) With this amount of grow, micro, bloom you would add only 30 grams per 80 gallons. (1/2 teaspoon per 5 gallons) If you double the amount of grow micro bloom to 10 ml each, double epsom added. You should not need more than 7.5ml of each giving you 150 ppm n during veg growth. You would add no more than 45 grams epsom to 80 gallons.
What is going to happen? If you add too much magnesium, your going to end up with a calcium deficiency with top growth burning. There is ample potassium so I doubt potassium def will occur.
You had bad water with high calcium. This caused a magnesium deficiency even though there is enough normally in the ferts...
You fixed the water problem. Bottomline, once magnesium deficiency occurs, it is difficult to correct even with perfect fert conditions at the roots. If the mag problem persists, I might try a foliar spray once of epsom maybe at 1 teaspoon per quart (.95L) and wet both sides of the leaves.MTF-Sandman said:
When flowering time comes, you could use the 3 part in equal portions and get ok results. Really no more than 5ml of each. It only has 39 p when the n level is 100 like you want. Considered low by some. Better to switch to 3/4 strength: 15ml bloom + 10 micro + 5 grow per gallon.
n 119
p 70
k 164
ca 121
mg 50
50 ppm magnesium is plenty so I don't suggest adding any epsom salts. If you do, don't add more than 10 ppm mg extra. 121 ca/2=60-50mg in the 3part=10ppm mg extra max. This would be 30 grams in 80 gallons max. (1/2 teaspoon per 5 gallons) Remember your aiming for at least 2:1 calcium to magnesium.
Hope everything works out for you Ray!
.
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