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Hmm I really need to get a refractometer Just to check what's in my weed... and tomatoes, red peppers, zucchini, potatoes and the rest of bunch Basically, after amending my soil heavily I got very big crop of tomatoes, which were as sweet as Sicilian ones and my sauce needed little balancing with spices... hmm, this year I started adding crushed lava rock My tomatoes have very thick stems, leaves are deep green, vigorus kind of color, and they're branching out like crazy, effect of stinging nettle + comfrey + horsetail + compost teas
What is cat drench?
thanks Graytail!There's been misunderstanding because of the way high brix growing methods were introduced to 420Mag, by Doc in his early experimentation and later with his kit. Any well-designed organic soil will measure "high brix", in the 10-14 range. The trick is in designing the soil. Almost no one begins with a soil test. Almost no one actually knows why one mix works better than another. Icemud does fabulous work with his mixes, but I doubt he really knows what's happening in the soil - they just work well for him. BigIrishDoode cooks up some amazingly nutritious mineralized coco mixes. There are Super Soils. I would imagine any of these measure high brix, and that's a good thing.
But most of us also know about far more growers who mix some of this and some of that, and maybe it goes well, maybe it doesn't. We layer soils, we spike soils, we flush soils and drench soils. We add organic this and some organic that, we brew various teas, and maybe it goes well, maybe it doesn't. If we stick to the nute schedule, we get some pretty good smoke. If you read Doc's earlier journals, you'll see that he was looking for some method that worked simply and simply worked. Osmocote Plus was a great example. If you want to avoid screwing up your grow and have no desire to fiddle with measuring nutes and timing, just put some time-release OC+ in FFOF and jus' water 'em. I guarantee you'll turn out weed every bit as good as the guys who ride the edge of nute burn and lockouts.
Doc Bud's High Brix Kit is simply a foolproof way to grow very high brix cannabis without testing your soil and having the perfect mix designed for it - that's been done by Doc. You don't have to buy quarts of stuff and figure out how to use it - Doc did that already. You don't have to wonder how it will turn out because the rest of us have tried it and can tell you that it's really really hard to screw up.
So if you're intrigued by high brix methods and it all seems a little odd to you, read BID's journals and Icemud's journals, both of whom measure for brix and have tried Doc's kit. They prefer to mix their own soils but the goal is the same. We're all hooked on the expanded terpene profiles and the sometimes shocking potency, not to mention the almost nonexistant feeling of having inhaled smoke - smooooooth. Doc's kit will get you there, the path is laid out. It's even evolving as we discover the correct mineral ratios for cannabis specifically.
I don't mean to sound like some kind of evangelist, I apologize. I just don't want to try to figure out exactly how to amend a soil to produce a high brix environment. I could - all the information is available - I just don't want to. But after becoming quite intimate with the produce from Doc's kit, I wouldn't want to try to grow any other way. So I recommend Doc Bud's High Brix Kit without reservation, and I encourage everyone to try to grow high brix cannabis.
It's better stuff.
However, for the record, neither BID or Icemud have used my kit.
I've never tried the kit... I was going to back in October but had some soil and amendments on hand and made my own mix. I got lucky with it. The last two harvests have been 16 and 17.5 brix when I squeezed fan leaves. One thing I've noticed is that the brix has increased in both cases from ~ 14 to the higher numbers in the last week or ten days as I've cut off water and the plants have lost moisture in preparation for harvest. I'm assuming that happens because as the moisture is less available in the soil, and water continues to transpire through the leaves - the fluid inside the plant becomes more concentrated. The higher concentration of dissolved solids results in a higher brix reading.
One thing I wonder about is if the very dry environment here (single digit RH is common) increases the brix. Low RH leads to increased transpiration thus concentrating the fluid matrix the plant pulls from the soil.
Perhaps this fall I'll get a kit and do a side by side with my own mix. I expect that the kit will do better purely because more attention has been paid to the mineral balance. Most of the minerals compete for transporters in plants as well as animals. For example, if a human consumes too much calcium it can lead to a phosphorous or magnesium deficiency since all three minerals largely depend on the same transport protein...
The quality of product produced by the kit speaks for itself. I frequently recommend it to folks even though I've never actually used it!
The harvest brix readings have been taken from wads of small fan leaves stripped at harvest. They have not been "old growth." It took some practice and experimentation to get what I considered good samples. I too have noticed that older more desiccated fan leaves produce a higher reading. It has been fun to explore brix fluctuations relative to where on the plant the "squeezings" come from, and how they change relative to when the plant was last watered, etc. A refractometer is a fun toy but getting a good sample takes some trial and error. I endeavor to get a drop or two from crushed plant material suspended above the prism surface without the plant material ever making contact with the glass surface.
Frankly, Doc, I'm somewhat surprised by the brix readings I've been getting. My skeptical nature leads me to wonder about things like the effect of soil moisture and RH on brix. You frequently refer to viniculturalists in brix discussions. Typically grape growers love a dry fall with lower soil moisture and RH which leads to a higher concentration of terpines in the stems, seeds and skins of the berries, as well as a higher sugar concentration (or more specifically higher sugar/organic acid ratios) in the fleshy interior i.e.; higher brix and lower overall weight yields. In theory high brix readings come from a combination of soil and atmospheric conditions. I will definitely get around to comparing kit soil with my own mix, and as I said before, I expect to see higher readings and an increase in quality in kit soil.
Here is a picture of some Darkstar at five weeks. Brix was about 14 and it harvested at 17.5. I'm growing some good quality smoke.
As long as we're on this whole brix testing subject ...
Yesterday I decided to take some pics while I tested Carn2. Here's what I start with - vicegrips, a couple of thick metal slugs, a refractometer, and a typical healthy 5 bladed leaf.
I start by tucking the pertiole against the leaf and rolling/twisting it together.
Tuck it again, twist some more ...
I put the wad between the slugs and squish it carefully around the disks without releasing any juice ...
I reroll it, squish it for real and let a drop touch the prism ...
Flip it closed and take a reading ...
Reroll it and take another.
This is from my Carn2. She dropped a bit since last week but I'll take a 17/17 any day.
You frequently refer to viniculturalists in brix discussions. Typically grape growers love a dry fall with lower soil moisture and RH which leads to a higher concentration of terpines in the stems, seeds and skins of the berries, as well as a higher sugar concentration (or more specifically higher sugar/organic acid ratios) in the fleshy interior i.e.; higher brix and lower overall weight yields. In theory high brix readings come from a combination of soil and atmospheric conditions.
It's not completely true. Different varieties will give best grapes only with perfect conditions they've been acclimatized to, and these rarely fit in the box of wet summer and dry fall. Certain regions produce best wines... with help of skilled enologists of course, cause grapes love their microclimates. Let's take pinot nero (pinot noir), one of premium varieties grown in Italy and in France. The best wines produced from pinot nero come from Trentino-Alto Adige (northwestern Italy), cause these grapes love temperature swings during the season. In Trentino it's either very hot or very cold, and that's what gives their pinot nero a real edge.
Another good example is one of the best northern Italian varieties: Nebbiolo, which you'll never be able to grow in California, cause this variety loves high humidity throughout the summer and early autumn with lowering temps in October. Grown in different climates Nebbiolo won't produce a good wine even with brix sky high.
Just my 5 cents.
Happy growung guys!
You are right, Conradino, that what I wrote is not entirely true. Rather, it is a generalization. Dry fall weather increases wine grape brix. High brix fruit does not necessarily equate to good wine. Too much sugar leads to residual sugar left behind when the alcohol from fermentation kills the yeast before it has consumed all the sugar - resulting in flabby fruit bombs (another generalization.) Wine is another topic altogether, and a complex one. I've been fortunate to have extensive contact with the wine folks over the years and have many good friends in the wine business. Interestingly while visiting a friend who has a small winery in the Santa Ynez valley the end of last month he popped open a bottle of Nebbiollo from a small winery in Paso Robles that was pretty decent; on par with most standard Nebbiolo d' Albas but falling far short of a first rate Barolo or Barbaresco.
This ain't the place to go all wine geek. I'm only wondering if the low RH where I grow is one of the things that drives the high brix readings I've been seeing from my cannabis.