Is this nute deficiency?

[noobiegrower1]

The whole plant is starting to fade to yellow :[ and I dont know whats wrong. I gave her some all purpose plant food. But not alot like a cup at most cause I was afriad of burning her.

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[noobiegrower1]

by a cup i mean the mixed solution. was like 1/2 tsp per gallon so a cup from the gallon before anyone freaks out

 

[moash]

take a pic of the whole plant and another one of the lower leaves
but yes it looks like the start of a def.....possibly N or Mg
it may be necessary to feed it more

 

[noobiegrower1]

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[noobiegrower1]

its mainly the fan leaves right now but it looks like its trying to spread. how long does it take for the nutes to kick in checked my soil was pretty dry so I put about a half gallon of the feed mixture in there the feed says once every 2 weeks. should I follow that?

 

[moash]

its mainly the fan leaves right now but it looks like its trying to spread. how long does it take for the nutes to kick in checked my soil was pretty dry so I put about a half gallon of the feed mixture in there the feed says once every 2 weeks. should I follow that?

have u checked the ph lately...after looking,i think that could be ur problem
or it could be the nutes u r using is locking up other nutrients,particularly P or Mg
get ur ph in check and go from there