tikitoker
Active Member
Hey guys I am not one to ask for help usually but I sure could use it now. I have some auto's and they are at day 19 today. some are just fine and others are slightly mottled on the fans. Yesterday I looked in on them and saw some yellow tips on the top newest(youngest) fan leaves. Most don't have the yellow tips but all have the mottling to some degree. The soil is a mixture of coco/ffof and amendments + lime
Now I top dressed with powdered dolomite and I add cal/mg to my water. I have plenty of cal/mg I my soil and water and fertilizer. I am very confident they are not over-fertilized, so then it's a deficiency. Which one I can't figure out, butI am leaning to Potassium deficiency as excess calcium and magnesium can compete with K. However on the otherhand too much potassium will compete with magnesium and in return antagonize calcium since the to go hand -in- hand.
The plants are nice and healthy shade of green and some are side branching and others are very slender and tall, so I cant pinpoint a K deficiency base on branching as I have 5 different pheno's I am dealing with. the only thing I have to go on is the tips and the motteling of the older fans. Nowhere else on the plants are affected and all side shoots/branches show normal coloration without chlorosis of any kind. Peptols and stems/branches are perfect green, ZERO RED/PURPLE.
So please can someone help me out. I am almost inclined to believe the little ladies are hungry for bloom fertz. But I could be wrong, I would just like to get a general consensus on remedial action. (someone who's more familiar with autoflowers)
Now I top dressed with powdered dolomite and I add cal/mg to my water. I have plenty of cal/mg I my soil and water and fertilizer. I am very confident they are not over-fertilized, so then it's a deficiency. Which one I can't figure out, butI am leaning to Potassium deficiency as excess calcium and magnesium can compete with K. However on the otherhand too much potassium will compete with magnesium and in return antagonize calcium since the to go hand -in- hand.
The plants are nice and healthy shade of green and some are side branching and others are very slender and tall, so I cant pinpoint a K deficiency base on branching as I have 5 different pheno's I am dealing with. the only thing I have to go on is the tips and the motteling of the older fans. Nowhere else on the plants are affected and all side shoots/branches show normal coloration without chlorosis of any kind. Peptols and stems/branches are perfect green, ZERO RED/PURPLE.
So please can someone help me out. I am almost inclined to believe the little ladies are hungry for bloom fertz. But I could be wrong, I would just like to get a general consensus on remedial action. (someone who's more familiar with autoflowers)