to all master dirt growers..
my soil has a high concentration of worm castings, my question is, why would my fan leaves be yellowing? worm casting have heaps of N...

ill post a pic tomorrow becaue i also di absolutely not just spend a whole half hour searching for and wiping mites off two plants at the back

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Your in flower...probably to much N. When I started...I had a thread here in this forum but got lost in the server change over some time ago. I used MG time release soil...had to much N for flower, and other issues. Crispy-fied one and a half grows before I realized it was the soil. I've never used worm castings so I don't know about them. If it still would have a high N then it will crispy the leaves, more so if its a little on the warm side in there...

Peace.

yes it is warmish, by crispify you mean?...
i have yellowing of the fan leaves progressively from the oldest to the newest, one plant is showing signs of overfertilizer as well... its contradictory i think that i can have signs of under and over fertilization on the same plant for example, unless i dont have any deficiency, and the yellowing is normal in early flower... (2nd week).

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To much N + high temps = crispy leaves (like crumbly if is really bad). If they are just slowly yellowing...thinking the plant maybe using up the goodies stored in the leaves, for the flowering? I dunno...

thats what it looks like, but its a bit soon to loose those fan leaves...isnt it? i cant remember at what stage i usually begin to loose those in my outdoor grows, but i think its towards the middle of the flowering stage, but my memory could be failing me here

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Mines usually not till the end...non of mine have gone yellow. They have gotten tattered and I deemed them useless and smoked them. Have you pumped up on the P?

am doing so as we speak

LOL! Smoke'in leaves or pumping up the P?

Hah! Both!

your leaves should not be yellowing because of a nitrogen deficiency if you are still in veg *edit - and have adequate nutes*. but they will yellow if you are giving too much. again, ill warn you.....do not use pure worm casting in flowering time. the plants will get confused and can get that crispy problem as said earlier because of too much nitrogen released by the worm castings. i have made this problem before and i want to make sure it doesnt happen to someone else. do not just use worm casting and perilite.

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"Remember, you can never overdose - you can only under-dose. We are just making sure we aren't under-dosing."

I am a medical marijuana patient - my plants and use are covered under State Law. I do not endorse illegal activities in or out of the state/country. So don't tread on me.

Spring '09 Grow Chocolate Thai: http://www.greenpassion.org/f24/back-action-spring-09-grow-7928/

Current Fall '09 'Red Diesel' LED Grow http://www.greenpassion.org/f24/fall-09-pure-led-grow-show-red-diesel-14415/

ok, i wont repeat this then, so can you plz forewarn me about anything else that might (will) happen due to my using almost pure castings?

thing is the dude at the grow store told me this was their best product as far as organic soils went... oh well it will not be repeated

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mr. ileso I have a tendency to lean toward the over abundance of nitrogen during the flowering stage. As to when leaves begin to yellow depends on what strain you grow. I had 4 strains growing and the leaves never began to yellow before halfway through flowering stage to a sativa dominant strain that the leaves did not begin to yellow until two weeks previous to harvest.

anyone grown afghani and or the church? i seriously dont think its genetic though.. weird... maybe i should just chill, watch and learn... indoors is very different, and even though im using soil the nutrient buffer in outdoor soil is much greater

and this is my first crop indoors so things are bound to go slightly wrong eventually...
its just that im unbeatably good outdoors and i wanted to have a perfect first crop inside...

hehehe, guess not ...hehehe
still at least ill HAVE a crop which isnt bad, i learn best the hard way anyway... that way i learn what NOT to do... like not to use almost pure wormcastings.. hehehe

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Could also be a lock out Ileso. IF your ph is far out of wack, the plant will not uptake the nitrogen it needs and it will look similiar to what you are discribing.

Die is the best authority on this though as he has done the same thing before. And each genus reacts differently as far as what it needs and how it shows reactions. Toke knows this well with his WW X. What that will take and do well on will kill other types of plants, also will describe what you are seeing in different plants.

Hope you find the answer.

Peace

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Life,
j-angel

aka GP purrie kittie attack cat!


My Little Grow LST'ing w/Hardware

My Outdoor Odyssey 2008 BONSAI MUMS

My Little Grow Indoor To Outdoor 2009

here my solution: flush your plants with pHed/distilled/filtered water just in case its a salt buildup or nute lockup in the soil. as i said before its doubtful its a N deficiency because of the worm castings. transplant into some new nutrient free potting soil (you can keep some worm castings). then continue on with half or quarter strength nutrients until the plant is used to its new home.


as for things that happen when you use the worm castings: for veg its probably not all that bad as long as the plants get their micronutrients. if there is too much N, or confusion between the nutrients you give it (like flowering nutes) and the worm casting nutrients its getting, it could lock out/build up nutrients. this causes yellowing, weakness in leaves (they fall off very easily - especially yellow ones), slowed growth, and some abnormal growth - when it happened to me sometimes a 3 bladed leaf would pop out, or some other abnormal leave structure. after a couple weeks in flower the plant continued to yellow and dry up crispy, only the newest growths looked fine. I originally thought it was a pH or nutrient problem, but with flushing and regulation soon found out that was not the case. luckily i had a few plants that were not in pure worm castings, which were doing fine so that helped me figure out what happened. good luck my friend, let us know how it goes

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"Remember, you can never overdose - you can only under-dose. We are just making sure we aren't under-dosing."

I am a medical marijuana patient - my plants and use are covered under State Law. I do not endorse illegal activities in or out of the state/country. So don't tread on me.

Spring '09 Grow Chocolate Thai: http://www.greenpassion.org/showthread.php?t=7928

Current Fall '09 'Red Diesel' LED Grow http://www.greenpassion.org/showthread.php?t=14415

thanks, undoubtably thats it
you just finished describing my girls, i was thinking of repotting anyway, they are getting rootbound anyway so heres to their new shoes... toke toke

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