By continuing to use the website or clicking Accept you consent to our cookies and personal data policy. For details please see Privacy Policy
Accept
Day 38 autos: is this nitrogen deficiency or something cal mag could help with?
banurnerphonestarted grow question 2 years ago
Kia ora whanau,
Each of my three flowering autos (the Herbies Beginner Auto Mix #1: Ape Fruit Auto, Purple Chill Auto and Godzilla Cookies Auto) has an issue with yellowing older leaves. Do I need more nitrogen or is this potentially something cal mag would address? TYVMIA!
like
Tomasdelibreanswered grow question 2 years ago
I happens with autos faster, but the plant is using nutrients and energy for the top growth. When those big fan leaves start to yellow down low just pinch them off and put them in the compost. You want more airflow down low as the ladies start flowering anyway.
GrowingGrannieanswered grow question 2 years ago
I'm going to say it's definitely a calcium issue - but before you run off and grab the calmag, I've got to ask what your PH is... because it's going to be critical to your plant's ability to absorb the calcium. PH needs to be 6.0-6.3 to get the calcium in soil...
I'm also a little confused by your diary since it looks like you're giving them two doses of grow nutes and two doses of bloom nutes? Calcium can be locked out of a plant with too much nitrogen... With my grows (and I only grow autos), I start backing off the grow nutes at pre-flower and cut them out completely during the first week or two of flower. I add a different bloom nute - I have two that I use - one has NO nitrogen and one has a little and I will add this second one at the same time as I cut off the grow nutes but I will only start this second one off at 1/2 strength and increase it if the plant shows no signs of difficulty.
So my message is this: first, check the PH and make sure it's in a good range for calcium up-take, 2nd back off on any heavy nitrogen feeding (or cut it out completely), if neither of these things are an issue for your grow, then you can add some calmag to your feed - but ONLY ONCE A WEEK! And btw, those damaged leaves are never going to recover no matter what so you might want to trim them off. If you've solved the calcium issue, your plant will tell you by NOT showing any more of that yellowing and spotting...
Good luck!
2 likes
Complain
Similar Grow Questions
Solved
thunderbolt23
Color of LeafsHello there,
im new in this, and so i´ve my first question, would be nice if someone can answer it... thx !
Its day 16 and yesterday i planted in new soil. From Hesi.
They were 15 Days in standard Grow-Earth from GardenCenter. :/
Watered every 2nd day.
What does she need ?
Leaves. Color - Yellow
5 years ago
1
5
Solved
teemo
1st plant. Seems stunned and yellowish with black dots tips. Can anyone give a hint?Hey, guys! How are you doing? This is my first plant. It is 4weeks old, planted on cocó-perlite mix. I find it growing too slow based on other diaries, and it is starting to show these yellow with black dots tips. Anyone can tell me what’s going on?
Leaves. Color - Yellow
5 years ago
1
1
Solved
CaptainCream
Is it healthy OG Kush ?Hi Growers how do you think This og kush need more nutrients ? or what is wrong with them ? They are a little yellow. Small plants dont drink much and they are growing slow. Big plants on back of tent only yellow and they have red stemps Please look on picturs....?🙏
Week 10
Leaves. Color - Yellow
5 years ago
6
3
Solved
Septooth
Why are the tops yellowish color?Why are buds sights so light colored? I just flipped it to 12/12 two days ago. The leaves look good and are dark, but tops are yellowish. It's in a 2x2 with 140W quantam board led at 24". Feeding it Mega Crop at 500 total ppm every other feeding.
Leaves. Color - Yellow
5 years ago
4
4
Solved
Havingago
Yellowing Sugar LeavesNoticed the sugar leaves on bud leaves are also yellow. My understanding is this can have a big effect on final yield?? Flushed the gal but as no amber trichomes yet and want 20%, should keep flushing now on or resume feeding till some amber??? Cheers
Week 18
Leaves. Color - Yellow
5 years ago
6
6
Solved
Skylife
Any adviceNot sure what’s going with my plants, any advice
Leaves. Color - Yellow
5 years ago
4
3
Solved
CreamOfTheCrop
Dead spots on leavesI've been struggling with same problem from beginning of grow, leaves having these dry yellow/white spots. The first week I used too high pH which later I replaced by rainwater - new leaves were healthy, but last night I left tent at 70% RH. Somehow it returned - details in diary
5 years ago
3
2
Solved
5Lucky_Fingerz
Plant dieing whyI don't no what's going on... I tried flushing... Push the lights back further.... And gave them cal mag nothing fix the problem... Any suggestions
Leaves. Color - Yellow
Leaves. Color - Dark-brown
Plant. Wilting
5 years ago
2
2
Solved
GaiaGanjas
newly exposed leaf locations are yellowlight burns and yellowing appear on the tips of the rain.
there is an intense yellow color on the newly released jam leaves.
I applied calmag last week, is it too much?
Do you think I will make the next 2 irrigation without fertilizer?
5 years ago
8
7
Solved
Amani
Critical daddy purple (problem (yellow leaves )Hello guys im new in growing this is my second growing but it didn’t succeed I’m still beginner so I would like some help I’m growing now (critical daddy) it was fine until second week and start to become hello the end of the leaves from down is yellow but up leaves still green
Leaves. Color - Yellow
5 years ago
2
4
Solved
santope
Yellow leafsHello i cant figure out what was happend with my plants ph ground 6.4 TDS 800
They gettin yellow,iv thinkin its overfeed but now i think its deficiency of something...i flush them on monday and i want put next week Alg-a-mic from Bio Bizz its for deficiency,overfeeding etc.
Help
Leaves. Color - Yellow
Feeding. Other
5 years ago
1
Solved
StealthyDutchGuy
Younger leafs are discolering. What to do?This week my WW started getting pale? I tried to look on examples on the net of discoloring leafs. Is this a Zinc defecienty? She seems to be struggeling a bit because of the colder nights. Could this also be due to that? Looking forwards to your answer, dear question replier!
Week 7
Leaves. Color - Yellow
5 years ago
1
2
Solved
Amani
(Critical Daddy) im giving my plant bottle water not tap and i give it 2 times (grow nutrition palgron)soil; light mix its indoor growing its 2 weeks oldHello guys im new in growing this is my second growing but it didn’t succeed I’m still beginner so I would like some help I’m growing now (critical daddy) it was fine until second week and start to become hello the end of the leaves from down is yellow but up leaves still green
Leaves. Color - Yellow
5 years ago
1
1
Solved
KnightRider
Yellowing leavesHi Growmies, im in week 7 of my flowering cycle, my leaves have started yellowing between the veins before turning brown and dying from the tip inwards. Is this a calcium deficiency? Or is it natural dying from the end of flowering cycle or something else? Please advise thanks ✌️
Week 16
Leaves. Color - Yellow
5 years ago
3
4
Solved
SweetJB
I've been seeing old fan leaves and the bottom canopy turn yellow. And the Pineapple Express is not looking as Green as the other.Hello! I've been noticing the blue dream fan leaves are tuning yellow. Also some new leaves hace a lighter green on the Edge of the leaves. Also the Pineapple Express is showing a pale green if you compare them. pH is 6, and I last watered with a quarter of what canna recommends
5 years ago
2
2
Solved
DabNinja710
I'm using 40% ocean forest, 40% happy frog, 10% perlite, 10% worm castings. I haven't really added anything since the first week. I've noticed the G.G. has some yellowing the Zkittlez looks great. Im wondering if it's light burn or nirogen deficiency? Any help would be wonderful.
Week 3
Leaves. Color - Yellow
5 years ago
9
6
