hi can you please tell me why the tips of the leaves are yellow ? I have the same problem at the young leaves ( I grow lowlife auto white widow day 28 from seeds ) . until now I feed only veg nutes from AN .
Also can you please tell me when I have to switch to flowering nutes ?
Thanks
If the new growth is yellowing, I'd be suspicious of pH issues. What do you run your pH at? If it were overfeeding, likely you'd be seeing leaf curl, and brown "burn" at the tips and edges of leaves at the very least. A bad case of burn will spread over the leaves on your new growth and you'll see allot more than just yellowing. If it were an N def, you'd see yellowing on the older growth first.
With the autos, I'm not really sure when you'd switch, but I'd say once you see buds forming...switch to bloom nutes. Until then, I'd get in a good shot of veg nutes to help carry you through the N requirements of the stretch and in flowering. Once they begin flowering profusely, you won't want to give them allot of N.
Best,
Max :wacky: