Calcium or beginning of phosphorus

Jsnbaxter said:

What do you recommend as opposed to fish emulsion?

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Florilicious Plus
Or
Soil Hume

hotrodharley said:

Calcium is probably the biggest cause of lockout. Because of how it is used in general. Any nutrient in excess can cause lockout of other nutrients.
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Kinda wish I knew how to read this chart.

hotrodharley said:

The only time I routinely give actual cal mag is in the first month of flower. Otherwise it’s in the nutrients I use and in the ones I used before. Add the fact I use tap water that tests about 125-145 hardness. I think this cal mag got started years ago when people started to doing hydro using RO water. It was a running reply like ‘“bout a pound” to questions about plant problems. Here on RIU for sure. I think people just assume it’s extremely important to supplement it.

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My hard water is 350 ppm (tap), and I routinely get some sort of lockout on half my plants. With all the calcium and magnesium in the water and in our dry amendments (organic growers),it is surprising how we feel we need to use Cal Mag. I just got a hold of some interesting info concerning Phosphorous and it's news to me but 101 knowledge to most of you guys here. I now understand Jeremy when he mentions that you can't be on the fence between bottled and/or dry amendments feeding. Because you then have two sides to fall off of instead of just the one.

Week4@inCharge said:

Kinda wish I knew how to read this chart.

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Antagonism = too much of one nutrient can cause lockout of another nutrient (red arrows), as in, too much calcium can lock out potassium

Synergism = plant needs more of one nutrient when it has an abundance of another nutrient (green arrows), as in, excess phosphorous increases the demand for magnesium

Basically for those times when you're like, "I'm giving it more of 'x' but the problem isn't going away"...

weedstoner420 said:

Antagonism = too much of one nutrient can cause lockout of another nutrient (red arrows), as in, too much calcium can lock out potassium

Synergism = plant needs more of one nutrient when it has an abundance of another nutrient (green arrows), as in, excess phosphorous increases the demand for magnesium

Basically for those times when you're like, "I'm giving it more of 'x' but the problem isn't going away"...

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Thanks, think I'm gonna make a poster out this chart and hang it next to my tent.