Tapering down Nitrogen in flower (masterblend)

Hi all, this is my first dwc run. I've been using Master blend tomato formula, along with magnesium and calcium (the basic trio).

A lot of people talk about reducing nitrogen while in flower. Should I be cutting back the calcium in my ratio? This is where the nitrogen is coming from. If so, how do I add back the calcium?

Or should I just run the same mixture throughout the entire cycle of the plant?

What I have wondered is, does cutting back N and getting a Fade into yellower leaves achieve a quasi pre cure with Chlorophyl breaking down getting better less green flavor with a Post shorter curing time etc...???

Pardon my Manners yoour question is good -- the answer may be simple: https://customhydronutrients.com/MasterBlend-0-20-42-Cannabis-Bloom-Formula-25-lb-_p_24380.html

Your Master blend tomato formula is 4-18-38.. If your plant is healthy, I wouldn't cut back on anything..

HydoDan said:

Your Master blend tomato formula is 4-18-38.. If your plant is healthy, I wouldn't cut back on anything..

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Yeah but the calcium nitrate is 15.5 N. Doesn't that mean my actual npk is 19.5-18-38?

I use MB, and what I do, is last 2 weeks before flowering, I cut back ALL Nutrients by 25%, and the week before harvest, I cut back, another 25%.

plumsmooth said:

What I have wondered is, does cutting back N and getting a Fade into yellower leaves achieve a quasi pre cure with Chlorophyl breaking down getting better less green flavor with a Post shorter curing time etc...???

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It is my believe that yes this is it. That’s what they claim the cure is. And this does it.

Me I have started to continue with N longer into flowering. Certainly don’t cut it right out right away. You don’t want to fade to soon. And there is allot of growth that happens when you flip.

When you flip to 12/12 you use less nitrogen. in the last 2 weeks or so you cut the nitrogen even more or even all together, and yes you still want and need calcium, so you either use calcium sulfate or calcium chloride

Thanks! Any products or brands that have
calcium sulfate or calcium chloride? And any info on ratios?

When you flip to 12/12, they will use More Nitrogen, and strains will grow more after inducing 12/12, than any other time in their lives.
All Nitrogen is, is Protein. Plants may grow 1-10 times their size, after inducing 12/12.

Humans eat protein, and our bodies, turn it into Nitrogen. Thats why Bodybuilders, and most athletes eat every 3 hours. To maintain Positive Nitrogen Balance.. When you go Negative Nitrogen Balance, you start catabolizing yourself/muscles, and Glycogen, for energy.
Protein, is responsible for every cellular process, there is. Including Mitosis/Cell Splitting.
It all about ratio.
Flushing to rid weed of fertilizer, within the plant, is also a MYTH.

Sure I get that plants need N in all stages of growth, but my npk is 20-18-38 and I have about 3 weeks of flower left....

bobbjoedope said:

Sure I get that plants need N in all stages of growth, but my npk is 20-18-38 and I have about 3 weeks of flower left....

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So cut back on ALL NUTRIENTS. Not just single out Nitrogen.
I use the same fert, as you do.
In say an 8 weeks floweing strain, I slowly increase ALL Nutrients, until week 6.

In weeks 3-4, I add a small amount of 0-52-34. In weeks 5-6, I stop the 0-52-34, and increase the Epsom Salts/Magnesium, for the Sulfur. Sulfur, has been linked, to Terpene Production. All the while, until week 6, I still slightly, increase ALL Nutrients. Not much, but some. And I give a good blast of Epsom Salts, in weeks 5-6. Though, I give Epsom Salts the whole time, it is increased a good bit, in weeks 5-6.

jimihendrix1 said:

When you flip to 12/12, they will use More Nitrogen, and strains will grow more after inducing 12/12, than any other time in their lives.
All Nitrogen is, is Protein. Plants may grow 1-10 times their size, after inducing 12/12.

Humans eat protein, and our bodies, turn it into Nitrogen. Thats why Bodybuilders, and most athletes eat every 3 hours. To maintain Positive Nitrogen Balance.. When you go Negative Nitrogen Balance, you start catabolizing yourself/muscles, and Glycogen, for energy.
Protein, is responsible for every cellular process, there is. Including Mitosis/Cell Splitting.
It all about ratio.
Flushing to rid weed of fertilizer, within the plant, is also a MYTH.

Cannabis Flushing Research Study

In our research study, RX Green Technologies evaluated the effects of different flushing times on chemical profile, flavor, and smoke of cannabis flower.

www.rxgreentechnologies.com

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If you use the same amount of N (or more) when flipping to 12/12 the stretch will increase. When we flip to 12-12 we want to promote bud set, not stretch so much.

Stretch, is mainly genetic. And Me?? I myself, look for strains that stretch, a lot, after inducing 12/12.

jimihendrix1 said:

So cut back on ALL NUTRIENTS. Not just single out Nitrogen.
I use the same fert, as you do.
In say an 8 weeks floweing strain, I slowly increase ALL Nutrients, until week 6.

In weeks 3-4, I add a small amount of 0-52-34. In weeks 5-6, I stop the 0-52-34, and increase the Epsom Salts/Magnesium, for the Sulfur. Sulfur, has been linked, to Terpene Production. All the while, until week 6, I still slightly, increase ALL Nutrients. Not much, but some. And I give a good blast of Epsom Salts, in weeks 5-6. Though, I give Epsom Salts the whole time, it is increased a good bit, in weeks 5-6.

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Ah, I thought the ratio had to be strict. And I've never ran full strength, just half. Full strength npk numbers seems insane!

jimihendrix1 said:

Stretch, is mainly genetic. And Me?? I myself, look for strains that stretch, a lot, after inducing 12/12.

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It is genetic but there's things that help increase or decrease it, everyone has there own style but most ppl are trying to limit it.. I'm just finishing a run of HiChew which is a shorter plant and I wanted her to stretch so I get what you're saying

bobbjoedope said:

Ah, I thought the ratio had to be strict. And I've never ran full strength, just half. Full strength npk numbers seems insane!

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I dont run full strength. I run about 40%, at the most-when heavily into flowering. And fertilize every watering. I use about 5%-10% strength, on seedlings, and slowly increase over time.
Also grow large plants, in large, 20 Gallon containers of Promix BX. 1000w-1150w HID.
I usually start seeds, clones-after rooted in 32oz Uline Deli containers. Under 1000w Hortilux Blue at 20inches or a 1000w Hortilux HPS-24 inches, or, 1150w DE Gavita, at 40 inches.
Usually grow 1-2 large plants under 1000w Hortilux HPS. 2 are vegged less. Also bend plant over, and train then to grow horizontally, and dont mess with the growing tip. Plays are usually bend over about 20% of the way down. After a bit, you wont have to mess with it anymore, but I do like to shake, and bend around on the branches, and keep a constant breeze on them, 24/7.
Usually veg 45-70 days. 1 plant can easily use up a 4 x 5 area, under a 1150w DE Gavita. If it has the genetics. We have a 2010 Barneys Farm G13 x Haze, which originally came from Reeferman, and is different now, will get 22oz from 1 plant under 1000w Hortilux HPS, in a 4 x 4 area, by just bending it over. Im sure more is possible if one did a bit of pruning ect, but that would increase veg time.

jimihendrix1 said:

I use MB, and what I do, is last 2 weeks before flowering, I cut back ALL Nutrients by 25%, and the week before harvest, I cut back, another 25%.

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I just bought pk boost and add it to the nutes now you have lots of pk and same n

I had strains that eat 1.5 recommended nutes and some that used half and less dose

amneziaHaze said:

I just bought pk boost and add it to the nutes now you have lots of pk and same n

I had strains that eat 1.5 recommended nutes and some that used half and less dose

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I use MPK-0-52-34, for about 2 weeks of flowering, on an 8 weeks flowering strain. Usually weeks 3-4. Then cut it out, and boost Magnesium/Epsom Salts, in weeks 5-6. Then week 7 cut all fertilizer back 25%, and week 8, cut it back, another 25%.

Yea i have to raise magnesium as well starta eating double around those times.
But i dont think i ever reduced nutes at the end.unless she stopped eating