Mainly nitrogen deficiency.

[Kingrow1]

Mainly nitrogen deficiency, even yellowing of whole leaf, limp and weak.

 

[deprave]

yep, also phosphorus though, check your ph

 

[smallclosetgrowr]

yep looks like nitrogen , but it would depend on where the leave is on the plant. if its yellow from the bottom up its nitro def

 

[Kingrow1]

Well done guys, i just flushed all the nutes out of the soil and this was the bottom most oldest fan leaf on the plant. It shows what happens when you deprive a plant of every nute pretty much although fisrt to show through on plants in veg is nitrogen. Just wanted to show the even yellowing of nitrogen deficiency and how it goes limp yellow whitish. It is an obvious deficiency to spot.

We need more deficient leaves posted to help with the identifying process, maybe the good pics can form a deficiency guide.

 

[dannyboy602]

Well done guys, i just flushed all the nutes out of the soil and this was the bottom most oldest fan leaf on the plant. It shows what happens when you deprive a plant of every nute pretty much although fisrt to show through on plants in veg is nitrogen. Just wanted to show the even yellowing of nitrogen deficiency and how it goes limp yellow whitish. It is an obvious deficiency to spot.

We need more deficient leaves posted to help with the identifying process, maybe the good pics can form a deficiency guide.

excellent idea...with all the posted pix of nute defs and watering issues...we could generate our very own nute def guide. it would need some organization and good quality pix and of course it should be stickied so noobies have a place to start...i'm in!

side note edit: i was in wales once...god u live in a beautiful country. the ppl seem so humble.

 

[Kingrow1]

I liked this but never ever found the rest of it, made more sense than my books for some reason and looks beautiffuly done.

 

[Kingrow1]

Sorry cant find bigger pics but freely available on google if you type in marijuana potassium deficiency and hit the images button on google to search it with. Scroll down a few pages and its easy to find