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Might be an iron toxicity causing a Mn deficiency.

Doubtful it is mosaic. A Mn deficiency looks like some of what you posted. I would argue that if these are clones, that you never got a callus. As well, looks like over watering and most definitely a Ca deficiency on the last photo. That rust type symptom. Getting Ca uptake is difficult...

Most of what folks read about P is not true. The gov't got involved in the 70's and the 80's and decided that P was causing problems in rivers and streams resulting in algae growth. Turns out it was the dairy guys dumping their manure on their pastures near rivers that caused the issue...

I would bet that the LED lights aren't giving you enough evaporation like your old lights and that your medium is staying wetter. Cannabis needs to dry out a bit at the soil level to pick up calcium.

Some might be surprised at the addition of gypsum on carbonate rich soils. I do it all the time and the results are phenomenal. Here is a great video from the man himself..... enjoy. (5) HUMAN HEALTH AND SOIL FERTILITY 1950s FILM WITH DR. WILLIAM A ALBRECHT 42594 - YouTube

Mn is interveinal yellowing in a very broad fashion on newer leaves. You can also see it on older leaves, the same way. The argument is pretty clear. The more Ca you can get into the plant the more you can closer to reaching the full genetic potential of the plant. Read this book, More...

Robbed to repost! Good job. Wish they had talked about the base distributions and why and how to use it reading an analysis correct! And he did mention 80% Ca!! He missed it slightly, 85% Ca at [email protected] is what will tell you . But you still need to run M3 to understand what is really in...

Tony in one of the ICM posts in my thread applied 1 lb of gypsum per gallon in an old mix. Check out his results! When you get a sample back like that, chances are you got a mouthful of gypsum in your sample. Retest. Also beware of terrible labs that are abound. I run my S=K=P in ppms...

I agree with nearly 100% they said, the best part was the water issues, unfortunately they didn't go into it enough. The idea of applying lime on an alkaline soil with alkaline water, will take YEARS and will make problems worse. It will only work if you get good rains. For those in green...

Bulldog, There are two kinds of lime, dolomitic and calcitic. Dolomite has Mg. Calcitic does not.... to adjust pH upwards, you need to add lime. We are in agreement with Dolomite. If someone is marginal on Mg, say 10% of the bases and has a very open medium, use some K-mag. It won't...

It takes extremes to drag folks back to the center.....

Bulldog is right on. That K is probably off the charts. I would not add calmag. I would add some gypsum just like he is talking about. The dosis sounds about right. I would stick my finger in and make a hole on one pot only and fill it with gypsum and 10% OM. Make the hole as deep as...

I make compost with my own organic material, from my own cows, with a good compost turner and EM applications. Depending on what we need at the moment, the compost may go directly to the field in 60 days or it will go our worms to make worm castings (WC). Most often, it goes to the worms...

Not sure how many farmers you know, but massive profits?

Not sure where on the planet you are, but oil prices have fallen greatly as more sources have been found and efficiencies and alternatives have been installed. Hydrogen and alternative energies are right around the corner! Your cup half empty or half full?

Wow. Without a profit for the family farm, you will be forced to eat food that is not nutrient dense produced by factory farms who will just blow up your food with N. We are discussing a short term crop that many make their living off of. Don't mean to offend anyone, but the family...

I remember all those genius folk all said that we would run out of oil too.... I use a lot of bone meal, great P source. I do use triple super phosphate during the planting of my trees. Organic certifiers disqualify me the first three years, which is fine with me! Just when I begin to...

Nope, haven't run that kind of test yet, not due to lack of interest, the problem is that those type tests are only available in the US and Europe and those labs don't have soil import permits....

Elain is a big rock dust fan. It was one of her recs.