Just to elaborate on my last post about another two weeks till harvest (just a prediction, I will harvest at a certain percentage of amber trichomes).
Right now (yesterday as far as trichomes go) while I did see a couple of amber trichs, it was nothing to right home about. You can say I've got like 1 percent amber. Mostly cloudy with a few still clear. That's fatleaf. I don't see Big Girl jumping ahead of Fatleaf yet, although she is about even if not a little more frosted! She's still about 50/50 clear/cloudy. The Runt is just starting the fatten up process and now she is starting to frost up also. She's like fatleaf was 2 to 2 1/2 weeks ago.
As far as the flush goes, I just read an interesting article I've got on file. Copied it to my Notepad so I don't have a link to it, but I could copy the information to a PM and get it to anyone interested. I can't remember where it came from, but is very interesting and it's main topic is 'Potency'. Getting back to flushing though, it discusses this. One of the issues concerned the lack of calcium availability to the plant during the flush. The article stresses that calcium is important in the potency equation. So I was wondering if anyone has heard of this. It did state that this would be more crucial for hydro growers since in the soil as it mentions, there would be lime and calcium deposits so may not be a factor. It's not too long and I'd really 'dig it' if some one like LR or Mountain would take a look at it. let me know what you think, could be that one of you recognize the article itself!
You now what, I'll just copy the paragraph about the flush and the calcium and put it here. If anyone is interested in the rest of the article, just let me know.
Here you are> Well it's more than a paragraph but here it is anyway.
Flushing: pros and cons
Much time and thought has been put into the feeding needs of each part of marijuana's life cycle, yet for some reason the final stages of resin development always seem to be ignored. But the vegetative period of plant growth is only setting the platform for us to produce the trichomes that we are after.
Flushing in particular seems to be something that is over-emphasized by many of today's growers. Many growers "flush" their plants with straight water or clearing agents during the final weeks before harvest in an effort to improve taste and smokeability. The theory is that this forces the plant to use up stored nutrients that may affect these qualities. Although this is certainly true to some extent, what many are forgetting is that not all nutrients can be moved within the plant.
Nitrogen, which is the main factor in poor-tasting bud, can be moved within the plant. If not present in the root zone a plant will take it from the older leaves to support newer growth. Calcium, however, is a nutrient that cannot be moved within the plant, if it is not present in the root zone it is not available for growth. Little research has been done on nutritional requirements of cannabis during the final stages of flowering, but it seems likely that calcium is vital as it is crucial in cell division. A calcium deficiency at later stages could therefore adversely affect trichome production.
This is not as serious of a concern for soil-based growers, as lime or other calcium sources which are mixed into the soil likely will provide sufficient nutrition even while flushing with pure water. But hydroponic growers using very pure water sources with little naturally occurring calcium could have problems. Flushing is certainly a valid technique, but is easily overdone and is not a quick fix for overfeeding earlier in the flower stage.
Some studies have shown that high potassium levels have a negative influence on THC production,4 which would correlate to the general belief that while hemp crops uptake more potassium than phosphorous, the reverse seems to be true for drug and seed cannabis crops.2 A study on how to minimize THC levels in hemp crops showed that THC levels in newer leaf growth decreased as nitrogen levels were increased.5 As no THC measurement was taken from floral clusters we can only speculate that the same would likely hold true in buds. This would also explain the good results that most growers have flushing their plants, as nitrogen is the nutrient most easily flushed from the soil.