consettbay2003
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If I use equal amounts (by weight) of Magnesium Sulphate and Calcium Nitrate will that give me an acceptable ratio of Mg to Ca?
And then in the very next thread, someone is advocating supplementing the plants with mag sulph to 'green them up'. If the correct ratio is 2-4 : 1, then why resuppliment with mag sulph? Just asking?
If the correct ratio is 2-4 : 1
I am quite partial to a 5-10% addition to my evening scotch as well
Hello.
All the paphs must have a good supply of calcium or just a few?
And also, I'm thinking to use crushed egg shells.
What do you think about it.
THanks.
Calcium and magnesium shortages in plants are caused by excess potassium.
But if you are using a fertilizer without these 2 elements and rain water, then the shortage is due to lack of these elements not K. Also many plants (as discussed elsewhere) can take high K amounts without the Ca/Mg becomming deficient. Without going over the same ground again, as an example, my lowii, philippinese, roths etc are doing great with 'normal' K (about 0.5:1 K/N)
I am curious to know how one decided the contents in Calcium and Magnesium in K-Lite fertilyser (same for MSU which as the same content for these two). At 65 ppm N for these two fertilysers we have a solution having a content of 15 and 50 ppm Ca and Mg respectively. Here in Belgium the AKERNE society sells a substitute for MSU (AKERNE RainMix) which gives respectively 40 and 9 ppm of Calcium and Magnesium at 65 ppm N. Discussing with the seller he said me that it is risky to use a hight concentration in these two elements because we can have an exaggerated leaves hardening and in the case of plants such as Masdevallias a difficulty for leaves to go out of their shield. This is the reason why they have decrease a little bit the content in Ca and Mg of the AKERNE RM. Your comments about this subject will be very appreciated.
Thank you in advance.
Also many plants (as discussed elsewhere) can take high K amounts without the Ca/Mg becomming deficient. Without going over the same ground again, as an example, my lowii, philippinese, roths etc are doing great with 'normal' K (about 0.5:1 K/N)
Especially if you flush the heck out of them with low K water between feedings to wash it all away:wink:
Especially if you flush the heck out of them with low K water between feedings to wash it all away:wink:
K is continually being released from the osmocote in the pots oke:
But I admit I still try to keep the K from dominating the fert mix by adding dolomite and straight N occasionally (and/or blood and bone).
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