Bottom leaves yellowing on scrog grow

[llGHOSTll]

My babies are about 3 weeks into flowering and the bottom leaves right above my screen are starting to turn a light yellow. I have been keeping a careful eye on the ph an ppm. The last time i water was one day ago an the ph was 6.4 and the ppm was lil over 600. Idk if its a nitrogen defiecenciy or something else. I thought that it could be from not getting enough light. Any help would be great!!

 

[llGHOSTll]

Something like this.

 

[marrdogg]

More food

 

[marrdogg]

What medium with a 6.4 ph?

 

[hush]

600ppm seems quite low for plants in 3rd week of flowering. It looks like underfeeding to me.

 

[llGHOSTll]

Im growing in soil. But the time before last when i watered i pushed the nutes to 1060ppm. Could that have done it? I also have been using the feeding method of feeding with full nutes then next water i cut the nutes in half then the next water after that i use just plain ph'd water to help with salt build up in the soil.

 

[llGHOSTll]

Im using B.C nutes. Was a gift pack with several bottles of nutes and a diagram of gow much to use in each stage of the planta life. It says on the chart to "FEED,WATER,WATER".

 

[Team Microbe]

N deficiency

 

[snuggles]

looks to me like the plants look starved and need some food.
raise your n and p, also look at the ph of your runoff water.
greets

 

[Nativearthling]

Bump up the N. In those first few weeks of bloom its not a bad idea to mix a transition formula where you include the Grow a little. B.C. nutes takes the Grow out when you go 12/12 but using 7.5mL of Grow and 7.5mL of Bloom instead of no Grow and 15mL of Bloom during those first 2 or 3 weeks should help you from having this problem in the future. Once you see the plants set full bloom and slow down stretch stop using the Grow and go to the Base and Bloom only formula.

 

[llGHOSTll]

So no boost when u put both grow and bloom. Or did u mean to put 7.5 grow and 7.5 boost and 15 bloom?