Help. CAL/MAG Def? Canoe leaves using Lucas, 3 weeks into flower

[Hydro-Soil]

i use lucas in soil. ive had to adjust the formula a little. theres too much N for my plants after the stretch. the canoeing leaves is a sign of too much N. the dry crispy leaves that spot and curl up is mag def. those spots are cal def.

the lucas formula is 0-8-16 in flower. i adjust it to 0-4-12 because of this theres less cal+mag so i amend the mix with epsom as needed.

see how green this plant is. this is like 6-7 weeks into flower from clone.

Your experience is why Lucas recommends flushing periodically when you notice that buildup happening. He himself admits he's not the best gardener in soil and that others have proven themselves much better at it with the formula than he himself can.

I'd have to say that the variation between soils in different gardens makes it extremely difficult to pinpoint a one size fits all nutrient regimen. Lucas seems to be no exception though with a narrower range of problems.

Have you thought about looking into a soil that drains better and holds less nutrients over time. Something that would be less likely to build up and easier to flush if you had to. I believe you would end up watering more often but you'd be able to keep a high level of feed available to the plant. This in turn would allow a higher yield.

 

[MynameStitch]

Ya, organics are good to use with promix.
Here is the thing, other people use full strength, but here is the thing with what I havelearned from experience.

What works for others may not work for you and when something is not working for you, it's one of 2 things, your using a different strain than they were ( strains have different tolerances to strength of nutes environment stress and so forth)
Or growers mistake, those are the only 2 reasons.

When something is not working, you should backup a few steps to find out what may be wrong.

Another note too, most people, not all, but most people I have seen feed like the way you suggested, they also use a root growth stimulator and or booster for speeding the plants metabolism up for faster growth. If you use the exact strength of food on your plants, but not a booster; you end up getting the results you are seeing now.

Good, if the spotting has subsided that is a good thing. Just make sure now you restart your feeding schedule, first feeding after a flush needs to be light, just to get the plants off too a good start to recovering, then the 2nd feeding, up it a bit and then 3rd feeding needs to be the amount they have with the size they are and then up it when they get bigger.

to check the run off is you mix your nutes... this works with chems, organics you can't get an accurate ppm/TDS reading.

You water it collect enough run off making sure it does not come in contact with your floor, get it directly from the holes collect in a pan or a cup.

6 in plants should have no more than 500, feeding every 3 days was too often most people feed 5 days in that mixture, some every 3 days, depends on the size plant, strain and growing style/conditions.

It's not how often you feed, it's the amount you feed each feeding. Your plants get fed and by the time you feed them again, the soil has food and you pile on more and it burns and damages roots and this you see in the plants leaves.


Your problem is you were feeding full strength/frequent..... with most of the time that dosage should be used with 4 liters of water.

 

[Marquis de Sod]

yes indeed,i did a search of "tips curling" and found most of the replies point to too much N. i think too much Sea Grow 16/16/16 with my two part in the veg room gave me too much ferts. the micro nute second step has N in it too, and i was putting sea grow in with it, got lazy. and instead of 1/2 dose of the sea grow i used full strength even tho using it with every water.

so i flushed the crap out of all the tip curlers tonight with ph'd straight water. they had dried out two days and were fairly light. rather than overwatering i am going with the N. stopped both problems so we'll see what happens.

 

[drow]

Ya, organics are good to use with promix.
Here is the thing, other people use full strength, but here is the thing with what I havelearned from experience.

What works for others may not work for you and when something is not working for you, it's one of 2 things, your using a different strain than they were ( strains have different tolerances to strength of nutes environment stress and so forth)
Or growers mistake, those are the only 2 reasons.

When something is not working, you should backup a few steps to find out what may be wrong.

Another note too, most people, not all, but most people I have seen feed like the way you suggested, they also use a root growth stimulator and or booster for speeding the plants metabolism up for faster growth. If you use the exact strength of food on your plants, but not a booster; you end up getting the results you are seeing now.

Good, if the spotting has subsided that is a good thing. Just make sure now you restart your feeding schedule, first feeding after a flush needs to be light, just to get the plants off too a good start to recovering, then the 2nd feeding, up it a bit and then 3rd feeding needs to be the amount they have with the size they are and then up it when they get bigger.

to check the run off is you mix your nutes... this works with chems, organics you can't get an accurate ppm/TDS reading.

You water it collect enough run off making sure it does not come in contact with your floor, get it directly from the holes collect in a pan or a cup.

6 in plants should have no more than 500, feeding every 3 days was too often most people feed 5 days in that mixture, some every 3 days, depends on the size plant, strain and growing style/conditions.

It's not how often you feed, it's the amount you feed each feeding. Your plants get fed and by the time you feed them again, the soil has food and you pile on more and it burns and damages roots and this you see in the plants leaves.


Your problem is you were feeding full strength/frequent..... with most of the time that dosage should be used with 4 liters of water.

I wasnt feeding every three days? I was feeding full str every third watering which was one feeding every 6 days. And I was watering every two days. My schedule would be; MON: Water, WED: Water, FRI: FEED, SUN: Water, TUE: WATER, etc...
I guess Im going to now water only plants with dry soil. Im also going to measure the PPM and see how fast they eat...
and probably feed around 0-5-10 to see how they react. Do you think its ok if I feed full str 0-8-16 and then water 4 times and feed?

or maybe just feed 1/3 str every watering for 4 or so waterings and flush and start again (I believe this would make it easier than to mark plants and remember what plants need feeding and what plants need water instead... because I use ONE pump and hand wand and the tremendous work in doing both different waterings/feedings at the same time)

What would be the maximum PPM of soilless when its in need of food? Anthing under 500 PPM means it needs feeding?

thanks for the help

 

[Hydro-Soil]

or maybe just feed 1/3 str every watering for 4 or so waterings and flush and start again (I believe this would make it easier than to mark plants and remember what plants need feeding and what plants need water instead... because I use ONE pump and hand wand and the tremendous work in doing both different waterings/feedings at the same time)

I believe that's going to be your best bet, finding a diluted solution you can water with every time.

Once you're on that schedule you should easily be able to pick out the ones that are building up a bit and need RO for a watering or two. Much easier than keeping track of individual plants.

It's going to take time but you're well on your way to dialing in the system you have there.

 

[MynameStitch]

My bad drow, I made a typo; Ya, I understood how often you were feeding; I just made some typos; but ya I agree with you and hydro-soil; would go along the lines you posted on dosages and so forth,would give your plants a good start when starting out a new like you planed.

 

[Marquis de Sod]

how long do you think it will take for the plants to recover from having their tips all curled down? they have not burnt/dried out yet, are still green for the most part, but alittle harder than they should be. (i am in 2/3 perlite 1/3 vermiculite btw)

 

[stihgnobevoli]

the leaves once they cup and curl/claw up they never recover.

 

[Marquis de Sod]

ilovebonghits2

ilovebonghits2

so then what? should i snip off the ends of them? would that do any good? cut them off? what what what?

i have already just put the worst ones into bloom. including the future (i thought) moms. now i have made new moms out of the plants that havent started choking off. i killem all somehow, it never ends.

 

[MynameStitch]

If you can, try to get the plants to recover before putting them into flowering, putting them into flowering with stress can/may being out nanners or the dreaded male pollen sacs.

As for the dead tissue, if the entire leaf is affected remove it, if most of it is not, keep it there until it's near dead and then remove it.