BillFarthing
Supporter
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I am about to try Humbolt "Oneness" which is kinda like Dynagrow, I could not get DynaGrow this Monday so today I ordered the Humbolt. Anyone here familiar?
Calcium and potassium interact with each other and require a balancing act to work well in a plant. You can't overload a plant with one element without locking out the other.
Calcium is the engine for metabolism in the plant. It is required mostly in transition to flower. The most common source is calcium nitrate, but that is the easiest way to throw off the nitrogen balance in the plant, especially in flower. Calcium imbalance can be caused by incorrect pH, improper watering, or nutrient imbalance. In soil, it can be fixed with gypsum, lime, bone meal or compost. In hydroponics and foliar use, I prefer supplementing with calcium acetate or amino chelated calcium at transition.
Take a look at the available ppm requirements of calcium from Agrien tissue samples at the different stages of plant growth in cannabis:
View attachment 1047986
Potassium is for all around health and water balance for the plant. It is required mostly in late flower. It is very easy to overload a plant with potassium in coco coir, by adding things like kelp, or potassium sulfate. Potassium deficiency can be caused by incorrect pH, excessively dry soil or nutrient imbalance.
Take a look at the available ppm requirements of potassium from Agrien tissue samples at the different stages of plant growth in cannabis:
View attachment 1047987
Always do testing to help correct any issues in the root zone with a pH meter or soil test. Issues can always be minimized by starting with a high quality potting mix or balanced synthetic or organic fertilizer.
~125 N, 40 P, 175 K, 150 Ca, 50 Mg, 60 S, 2.8 Fe and micros. A lot of this is moot when you use a high quality fulvic with chelated and complexed micros and your pH is in check.So what is your general thoughts on Ratio's of K to Mg to Ca etc, in basic veg and flower mix. I seen some varying studies from different universities. But I like the 4-2 -1, example 300ppm K 150ppm Ca and 75ppm Mg. S I usually run in the 130-140 range or whatever it comes out to, studies show it can be run up to 200ppm no issues . the only time I watch my S is if i'm doing sulfur burns.
Do you recommend this for all stages of growth, or just veg?~125 N, 40 P, 175 K, 150 Ca, 50 Mg, 60 S, 2.8 Fe and micros. A lot of this is moot when you use a high quality fulvic with chelated and complexed micros and your pH is in check.
The ratio, yes. The EC is going to change between tiny plants, veg and flower.Do you recommend this for all stages of growth, or just veg?
It's pretty close. PK levels are a little bit higher (and Ca levels a bit lower) w/ Jack's 321. Don't overthink it.Thanks for the reply. Is this close to the same ratio then as the “Recipe”? Really want to give that a try in a run or two.
Thanks for this. Been having a buddy run numbers for me on the angelfire calculator. Another quick question if you don’t mind. How is everyone adjusting the Ec with Jacks? Mix it up full strength, and then just dilute to target Ec?It's pretty close. PK levels are a little bit higher (and Ca levels a bit lower) w/ Jack's 321. Don't overthink it.
Useful Calculation: 3000mg (weight of Jack's Part A per gallon converted to mg) / 3.78 (liters per gallon) * .12 (percentage of P in Jack's Part A 5-12-26) = 95 ppm of P
Thanks for this. Been having a buddy run numbers for me on the angelfire calculator. Another quick question if you don’t mind. How is everyone adjusting the Ec with Jacks? Mix it up full strength, and then just dilute to target Ec?
Great graph thank you, really shows a picture is worth a thousand grows (I mean words)Calcium and potassium interact with each other and require a balancing act to work well in a plant. You can't overload a plant with one element without locking out the other.
Calcium is the engine for metabolism in the plant. It is required mostly in transition to flower. The most common source is calcium nitrate, but that is the easiest way to throw off the nitrogen balance in the plant, especially in flower. Calcium imbalance can be caused by incorrect pH, improper watering, or nutrient imbalance. In soil, it can be fixed with gypsum, lime, bone meal or compost. In hydroponics and foliar use, I prefer supplementing with calcium acetate or amino chelated calcium at transition.
Take a look at the available ppm requirements of calcium from Agrien tissue samples at the different stages of plant growth in cannabis:
View attachment 1047986
Potassium is for all around health and water balance for the plant. It is required mostly in late flower. It is very easy to overload a plant with potassium in coco coir, by adding things like kelp, or potassium sulfate. Potassium deficiency can be caused by incorrect pH, excessively dry soil or nutrient imbalance.
Take a look at the available ppm requirements of potassium from Agrien tissue samples at the different stages of plant growth in cannabis:
View attachment 1047987
Always do testing to help correct any issues in the root zone with a pH meter or soil test. Issues can always be minimized by starting with a high quality potting mix or balanced synthetic or organic fertilizer.
No biggie. Appreciate the clarification.I need to correct my post above. Jack's 321 would contain approx 40 ppm of P (If mixed at 3g of Part A). I forgot to account that the label shows the percentage of P2O5 (not P). Same thing for K.
- P2O5 = 43% P
- K2O = 83% K
So yea, Jack's 321 would be very close to the values BillFarthing mentioned above. Sorry for the mixup.
I use Botnicare Cal/mag plus iron.Yes, you are going to need supplemental calcium.
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