frankreynolds
Curing
- User ID
- 40
So Coco has a high capacity to hold onto Cations, which are positively charged ions (potassium, Calcium, magnesium etc.)
Naturally coco is riddled with high amounts of potassium and sodium, as that is where the coconut plants move all the excess salts from seawater to the coconut hairs.
the sodium naturally present in coco will do a lot of damage to plants but it is initially locked away. But when you feed nutrients through that un buffered coco the calcium and magnesium which are double positive charged will displace the sodium held up within the medium released large amounts of sodium to the plant while locking up the calcium and magnesium (the double positive charge means coco will prefer those elements)
So companies rinse all the potassium and sodium out of coco, then replace those free cation sites within the coco with calcium in the form of calcium nitrate. More expensive coco also will have magnesium nitrate used as a better buffer afailk.
Also coco is an organic medium that will slowly breakdown, as it does new Cation sites are opened up which will absorb and lockup further calcium/magnesium/potassium
Why i don't think Cal/Mag is needed is because the majority of products out there the Calcium portion is sourced from Calcium Nitrate. Same ingredient that makes up the majority of the Part A in a 2 part hydroponic nutrient. If you were to just use cal mag product ur adding a lot of extra nitrogen. So I recommend bumping up both a+b to hit higher calcium levels while keeping all other nutrients in balance which is by far the most important thing imo.
All of this assuming you have a calcium deficiency, calcium movement through plants is disctated mostly by water movement through plants. A subpar environment will mean sub optimal water movement through plant affecting calcium uptake regardless of how much you feed them
Naturally coco is riddled with high amounts of potassium and sodium, as that is where the coconut plants move all the excess salts from seawater to the coconut hairs.
the sodium naturally present in coco will do a lot of damage to plants but it is initially locked away. But when you feed nutrients through that un buffered coco the calcium and magnesium which are double positive charged will displace the sodium held up within the medium released large amounts of sodium to the plant while locking up the calcium and magnesium (the double positive charge means coco will prefer those elements)
So companies rinse all the potassium and sodium out of coco, then replace those free cation sites within the coco with calcium in the form of calcium nitrate. More expensive coco also will have magnesium nitrate used as a better buffer afailk.
Also coco is an organic medium that will slowly breakdown, as it does new Cation sites are opened up which will absorb and lockup further calcium/magnesium/potassium
Why i don't think Cal/Mag is needed is because the majority of products out there the Calcium portion is sourced from Calcium Nitrate. Same ingredient that makes up the majority of the Part A in a 2 part hydroponic nutrient. If you were to just use cal mag product ur adding a lot of extra nitrogen. So I recommend bumping up both a+b to hit higher calcium levels while keeping all other nutrients in balance which is by far the most important thing imo.
All of this assuming you have a calcium deficiency, calcium movement through plants is disctated mostly by water movement through plants. A subpar environment will mean sub optimal water movement through plant affecting calcium uptake regardless of how much you feed them