<span class="link_user">@wolfvb</span>, Some people might be interested in making their own calcium and magnesium solutions. For pennies. That could be a good starting point. Magnesium is easy, epsom salt. Added benefit of sulfur for bringing out nice flavor. Dissolves in water. But calcium carbonate or egg shells crushed finely have to be dissolved by the white vinegar and then added to feed water. Then the plants have access to it. If rhe chemistry is off and the vinegar isn't neutralized by the calcium carbonate that is a problem, so just add a little extra calcium carbonate and run through a coffee filter to remove excess solids and it's safe. Never have to buy one of those expensive plastic bottles of water again. I take 40 ml of 20% white vinegar, 200 ml of water, and add in a teaspoon of calcium carbonate. Stir it up, let it bubble fizz and react until it stops about 30 minutes. That's the fun part. Then you strain out the excess calcium. The vinegar is now water. Carbonate evaporated as CO2 gas. Not enough to matter to a plant though. Then I add water to get 5 liters to the concentrate that was made. Put in pinch or quarter teaspoon of Epsom salt. Stir it up and that's it. Money saved, plant happy, less waste. Empowerment.
<span class="link_user">@wolfvb</span>, My method right now seems to grow plants like they are plants and not science experiments or some alien species with bizarre needs. Sounds silly but it is what works for me.
As for real information it seems we get better information from studying basic gardening, horticulture and plant biology to build a general understanding of plants. If you can recognize nitrogen deficiency in cannabis, you can recognize it other houseplants too. All this cannabis specific info tends to be the least useful and most incomplete. On top of that there is a lot of superstitions and marketing has been polluting the the cannabis specific information. We can keep learning together. A big take-away that helped me a while back was learning about photoperiodism and photoprotection mechanisms. By studying photoprotection in plants you start a journey of understanding plant biology, learning about cells that are photoreceptors, what they do, what other cells do, what a plant does in the scotoperiod (dark period), what hormones do what, where they come from. Just take it a little at a time. In my coming diaries I will write out any tips I can think of, try an experiment, or what I learn on the way so you and others can also think about it. I see plenty of sick plants even though people are spending a lot. I have plant problems too, but instead of following some directions, I try to understand what happened. We have hardwater here, ph 7.5 which I adjust and battle constantly. it was just recently I learned that adding affordable dolomitic lime to the soil will keep the soil buffering to self regulating and save me a lot of headache. I've been looking for that solution for a while now. So I'm going to try that next and see if it makes a difference.
I learned how to make things myself and use what's around the house. We bought some calcium carbonate in a tub for cleaning. If I dissolve that in white vinegar and add water it makes that calcium ready for uptake and available to the plant. You can even spray it on the leaves. Finely crushed egg shells work too! Turn a waste product into a help for the garden! For magnesium I put a little epsom salt in some water. A bit of used coffee grounds mixed in the soil is slow release nitrogen. Stuff like that. I will go into more details, recipes in future dairies.
Oh! did you know plants like aspirin foliar spray? It helps them recover fast after transplant or defoliation and they seem to like it. I'll do that next time too and other foliar sprays that worked great for me.
Good suggestion!
I appreciate the interest, and we can always chat privately too. I have time for my extended family out there.
Stay rooted my friend!