any ideas - pics included

[RuralRoute420]

all the same leaf:









e/f
sweetooth#3
600ppm(.5)
6.0ph
dyna gro
ro water
calmag plus
hydroton
week 3-4 flower

 

[Guest]

what is swt3?

 

[Guest]

sweet tooth #3

 

[sproutco]

Off hand, I would say too many metals. Your using these two: dyna gro and cal/mag plus. What is in the plus? Micronutrients? Doesn't dyna gro contain calcium and magnesium? Is this something that occured recently or has it plauged your grow all along? Did you just recently change your fertilizer recipe?

 

[RuralRoute420]

^

^

nothing has changed this grow. i've had these spots on last 2 grows, using e/f with the hydroton in tray.....

Cal-Mag Plus (2-0-0) is a custom blend of calcium complex with nitrate nitrogen and a highly-soluble form of chelated magnesium. This combination prevents calcium and magnesium deficiencies as well as blossom end rot in tomatoes and peppers. Cal-Mag Plus also contains iron, boron, zinc, manganese, molybdenum, copper, cobalt, beneficial vitamins, amino acids and botanical extracts.

Dyna-Gro Liquid Bloom (3-12-6) provides all major elements and 11 trace elements for outstanding results in flowering plants.

 

[sproutco]

nothing has changed this grow. i've had these spots on last 2 grows, using e/f with the hydroton in tray.....

Cal-Mag Plus (2-0-0) is a custom blend of calcium complex with nitrate nitrogen and a highly-soluble form of chelated magnesium. This combination prevents calcium and magnesium deficiencies as well as blossom end rot in tomatoes and peppers. Cal-Mag Plus also contains iron, boron, zinc, manganese, molybdenum, copper, cobalt, beneficial vitamins, amino acids and botanical extracts.

Dyna-Gro Liquid Bloom (3-12-6) provides all major elements and 11 trace elements for outstanding results in flowering plants.

Your using double the micronutrients. You should look into cal/mag without micros. You can add calcium and magnesium to your water by using 1/4 teaspoon(1.25ml) powdered gypsum (calcium sulfate) or calcium nitrate + 1/4 teaspoon (1.25ml) epsom salts (magnesium sulfate) per gallon(3.8L) of water along with the dyna grow. The dyna grow, if it contains cal/mag, may be all your really need. I have never heard of chelated magnesium. I have heard of calcium being chelated in the form of calcium edta. Chelated cal/mag is not really necessary. It is more important to do when you are using reactive metals like iron.

 

[RuralRoute420]

dyna gro lineup w/ botanicare calmag plus

dyna gro lineup w/ botanicare calmag plus

ok, got some numbers for everything i'm using, i think i was looking at the wrong calmag, and not the botanicare as i have.

dyna gro bloom:
3-12-6
2% calcium
0.5%mg
0.09%sulfur

calmag plus:
2%nitrogen
3.2% calcium
1.2% mg
0.1% chealated iron, not the mg


sproutco, i just read your post on sulfur. i also have this other supplement by dyna gro called

Mag-Pro:
2-15-4
2%mg
1.5%sulfur

^should i be using this in conjunction, or skip it? any ideas? e/f here, if you don't recall

 

[Guest]

Looks like mite damage.

 

[sproutco]

ok, got some numbers for everything i'm using, i think i was looking at the wrong calmag, and not the botanicare as i have.

dyna gro bloom:
3-12-6
2% calcium
0.5%mg
0.09%sulfur

calmag plus:
2%nitrogen
3.2% calcium
1.2% mg
0.1% chealated iron, not the mg


sproutco, i just read your post on sulfur. i also have this other supplement by dyna gro called

Mag-Pro:
2-15-4
2%mg
1.5%sulfur

^should i be using this in conjunction, or skip it? any ideas? e/f here, if you don't recall

Sorry about the requote. I had to refer to the names and numbers while typing.

I guess you still have micro's in both dyna grow bloom and cal mag plus. Thats a double dose like I pointed out before. This may be the problem. Example: Although plants tolerate alot of iron, .1% in the cal mag plus and adding it in the regular dyna grow bloom may be too much.

I bet the source for magnesium in the dyna grow bloom and cal mag plus is magnesium sulfate. This would supply sulfur so you don't need to add more by using mag pro. Plus, you don't need more magnesium.

I would not add too much cal/mag plus along with the dyna grow because you don't want your cal/mag levels to get close to equal or more than potassium and the dyna grow bloom contains both already although in not too large a quantity. Potassium is more important.

Some growers raise the ph slightly higher in flower than when they were just vegetating. This would reduce the availability of the metals your feeding the plant which might be good since we decided there may be an overdose.

The 1/4 teaspoon gypsum and epsom salts, I pointed out earlier, would add about 70ppm calcium and 30ppm magnesium. This would not add micros.

It might be good to figure your nutrient solution into parts per million rather than just looking at percentages. Then you can compare what you are doing to others. Once you do this, you can follow the link at the bottom of my thread on how to make your own nutrient solution (see bottom of this post) that goes to nutrient profiles of different ferts. There is also a link in that thread for ppm numbers specifically for mj. I think the nutrient profile thread was started by a guy named Lucas.

 

[Guest]

u know, i am using calmag too, and see some similar spots on my leaves, using canna aqua nutes with it. perhaps too much?

 

[sproutco]

Plants tolerate alot of calcium and magnesium. They are macronutrients (used in large quatitys). Probably won't ever see an excess. The problem with too much is that it competes with other positively charged atoms like potassium and reduces their uptake. Micronutrients, like the name implies, are used in smaller quantitys. Plants cannot tolerate alot of these and excess can occur. Not so much iron but mananese, zinc, copper, and boron can cause problems. You have to be especially careful with chelated micro's because they are so available to the plant. Be careful not to use a double dose of micro's unless you know the exact ppm of what you are adding and total ppm added.

 

[RuralRoute420]

more info

more info

not sure if this helps
calmag plus using 2tps will achieve a supplement of

N 52PPM
CA 83PPM
MG 31PPM
FE 2.5PPM

 

[sproutco]

Cal-Mag Plus also contains iron, boron, zinc, manganese, molybdenum, copper, cobalt...Dyna-Gro Liquid Bloom (3-12-6) provides...11 trace elements

This is what you said earlier. Your not adding double micros? Thats good you have the ppm for that. Now if you can figure the rest of the nutrients in ppm you can come up with a total to compare to other nutrient solutions. I have noticed that some of these ferts try to hide their exact ingredients. See what else you can track down about your ferts maybe on their website or material safety data sheet.

Using the gypsum and epsom I suggested would give you calcium and mg without the micros. If you wanted to add some nitrogen along with it like the cal/mag plus has you could use 1/4 teaspoon calcium nitrate (instead of gypsum) plus 1/4 teaspoon epsom salts per gallon of water. This would give you about 75ppm calcium, 61 ppm nitrogen, and 30 ppm magnesium without adding double micros. You can see it would be almost identical to using 2 teaspoons (I assume tps you typed was suppose to be tsp) of cal/mag plus except no micros. You may be able to get calcium nitrate at a garden center because tomato growers, for example, might use this to stop blossom end rot. Call around. Epsom salts you can get at the drug store.

Note: A gram scale is a better way of measuring dry ferts when figuring ppm instead of using teaspoons and other crude forms of measurement.

 

[Guest]

dyna-grow lacks magnesium....for growing weed...maybee not otherplants.... sprotco... but when i used it i had to suplement the magnesium...but again i grow more plants than i do read about them....you got any grow sprotco...lot of links lot of knowledge....how about hands on...just curious

 

[Guest]

just a question

 

[Guest]

sproutco thanks for the info.....the show must go on...never questioned your knowledge just your experience....peace

 

[RuralRoute420]

magic 3 - you have exp w/ dyna gro?

i have a buddy who grows the same strain, same method, same nutes, just bigger light, and he always has to add mg at beg. of veg & bloom.

now, why didn't i just follow his instructions you ask? good question. guess i thought that since i was using the calmag, i wouldn't need to add the epsom. where's that guy at anyways? yoooohooooo!

 

[sproutco]

use 1/4 teaspoon calcium nitrate (instead of gypsum) plus 1/4 teaspoon epsom salts per gallon of water. This would give you about 75ppm calcium, 61 ppm nitrogen, and 30 ppm magnesium without adding double micros. You can see it would be almost identical to using 2 teaspoons (I assume tps you typed was suppose to be tsp) of cal/mag plus except no micros.

There is your answer. Try that instead of cal-mag plus. If you continued to use dyna grow and cal mag plus you would not need epsom salts because both contain magnesium. Don't get crazy with the mag. Remember like I said it competes with other positive atoms to get in the plant and you can cause a deficiency of something else. (cation competition)

 

[RuralRoute420]

update

update

i am finding more leaves like this. about 1 per plant. always, the lower fan leaves. and this is all the worse that it really has gotten. this grow IS better than last SOFAR, but we still have about 4 weeks togo. it seems like maybe it might start near the main vein of leaves,,,,,



here are pics of last grow, similar problems only worse:




here are the plants in question at the present time, you can slightly see the bottom leaves....