Let's Talk About the Calcium/Potassium See-Saw

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BillFarthing

BillFarthing

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:

user111287_pic2034732_1588630832.jpg


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:

user111287_pic2041338_1590273922.jpg


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.
 
TheBioMaster

TheBioMaster

This is true with ANY/ALL nutrition for plants.........

Shocker- you can't just dump any amount of nitrogen, calcium, phosphate or any/all other nutrients on ANY type plant, or imbalance occurs ........AND .......ph is important????????!! WOW!! Who knew???? Lol!!!

Ya know.......I bet the same rule applies to even just WATER for a plant!!!!!

Earth shaking post just full of unknown knowledge and insight bro.......
 
SSgrower

SSgrower

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?
 
Dr.Green55

Dr.Green55

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.


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.
 
BillFarthing

BillFarthing

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.
~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.
 
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