Lowryder 2 Help? Nitrogen deficiency?

I'm hoping someone can help me here. These pictures are at day 33, and this is a Lowryder 2, which is also my first grow attempt. About 4-5 days ago, the tips on the lower leaves of the plant started to yellow, and are progressing as you can see in the pics. I am feeding them 1/2 strength fox farm tiger bloom every other watering (every 4 days), and they are in Fox Farm soil. PH is about 6.0, and I am water every other day as the soil gets dry pretty quick. I am thinking of buying one of those moisture probes to make sure I am watering correctly, because when the soil is dry the branches with the yellow leaves get really soft, and after watering get firm again within hours. My pots are pretty small considering this is a PC grow box to keep the plant as small as possible. Overall the plant is looking very healthy other than these bottom leaves, but make your own opinion from the pictures. Thanks for checking it out.

-Aqueous2001

What is the temp in the box? I bought what looks like the same PC Grow Box which arrived last week. The intake fan was reversed so both fans were "exhausting". Temp in the box was 96 degrees for 3 days. I flipped that fan around. Now the temp in 86 degrees humidity 35%.

Yeah man that looks like classic N deficiency. The rest of the plant looks great!

HighLowGrow said:

What is the temp in the box? I bought what looks like the same PC Grow Box which arrived last week. The intake fan was reversed so both fans were "exhausting". Temp in the box was 96 degrees for 3 days. I flipped that fan around. Now the temp in 86 degrees humidity 35%.

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Temps are perfect, upper 70's and changes few degrees but nothing drastic.

Thanks for the reply. At this stage of growth should I up the nutrients or just keep what I'm doing? I'm going to keep a close eye on ph in case that's the reason it's deficient given the nutes Im feeding.

Whatever nutes you have add a small dose of the one that has the highest N concentration. I would say 1/6 strength would be a good start. There is no set nute schedule for every kind of weed. Certain strains require a different amount of each thing at different times so look at the manufacturers nute schedule as a rough guideline and pay attention to your plants, they will tell you what they need. Looking at your plants there is NO sign of nute burn so I would say it's safe to up the nutes a little and remember it's better to add too little than too much. I like your SCROG thing it's pretty MacGuyver. If you have the space I would say repot it into a slightly larger pot too.

oJUICEBOXo said:

Whatever nutes you have add a small dose of the one that has the highest N concentration. I would say 1/6 strength would be a good start. There is no set nute schedule for every kind of weed. Certain strains require a different amount of each thing at different times so look at the manufacturers nute schedule as a rough guideline and pay attention to your plants, they will tell you what they need. Looking at your plants there is NO sign of nute burn so I would say it's safe to up the nutes a little and remember it's better to add too little than too much. I like your SCROG thing it's pretty MacGuyver. If you have the space I would say repot it into a slightly larger pot too.

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Well growth hasn't stopped, its put on another couple inches since i started this thread so I think its going to be fine. After looking at other lowryder 2 grow journals this seems to be normal or maybe just a common occurrence. The yellowing doesn't look to be spreading at this point and the plant is looking very healthy.

The rack is not actually for SCROG, its for LST. It came with my PC grow box, and its only a wire shelf for a closet cut to fit in the case. The braces/supports are glued to the shelf, and strong magnets of the back of the braces so it holds to the side of the case. Its actually pretty nice because when you're not ready to LST you can use it to keep your plant close to the lights since the magnets are strong enough to hold the planter and you just move it down as the plant grows. If it wasn't for the LST shelf, the plant would be in the lights by now for sure.

Plants are looking better, they are taking the nutes like a champ. See pictures.