first grow need help!

I see the question has already been addressed, but here is my take: Low nutrient levels in combination with sub-optimal ratios. Use high-quality nutrients. If you really want to get nerdy, try PMDD and go from there, or choose a well-established nutrient brand and check out other growers who focus more on what they are feeding, rather than, like me, assuming people already know what food to give and focusing only on the outcome -- smell, taste, and appearance of the harvest.

In your diary it reads, like you have not the best way to water your plant. Do not give her every day some cups. Wait until the pot is really dry and then give her around 1/10 of the pot size (1.8 liters in your case). The way you water, a lot of the roots stay wet 24/7. That cuses them to die. Do not feed her nutes with every watering, I do it every second watering. When you give nutes, do not go that far less than the recommandations. It is good to start on the lower side of the nute-companies feeding-schedules, but 1/4 to 1/8 is a bit soft. These are the first things that come in my mind, with a quick view in your diary.

From the pictures it mostly looks like a combination of mild nutrient burn and normal fade on older leaves rather than one big mistake. Burnt tips usually mean the feed was a bit strong at some point, and the yellowing on lower fan leaves often just means the plant is using stored nutrients, especially if you’re already in mid/late flower. I’d check your pH and runoff EC to rule out salt buildup, keep feeding a bit lighter, and remove the worst yellow leaves so the plant can focus on the buds. For a first grow this honestly looks pretty normal — plants rarely stay perfectly green all the way through flower.

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Hey my dude, I would clean up all the lowers on the bottom half of the plant. Plant. I would also slow down to speed up. Up it looks a little overwatered and stressed you could literally switch to pH balanced water on your next two Waters which should take you 7 days away from where I'm writing this blip. Take a breath you will get to harvest. If you keep growing, this will just be your very first stepping stone to greatness. If you double back to this strain in 10 years, you'll knock the skin off of it.

N and Mag .. wie sind die Basiswerte des Giesswassers ? Schauen wie die Werte sind und nachbessern .. bissle Grow wieder mit rein .. die sind meist N lastig .. bittersalz . Gut gießen (keine Trockenstellen)

First mistake is to grow an autoflowering when you don’t have any experience in plants stages and phases. That plant is around week 4-5 of flowering. This where the die-back happens when you didn’t give enough Nitrogen to support the stretch and to stack sufficient stock when passed week 4-5 of bloom when the roots stop processing Nitrogen to focus on P-K. Here are some YouTube educational videos that you might need to understand first to be successful with your next crop : EDUCATION WITH THE GROWBOSS - KNOW MORE GROW MORE https://youtu.be/_Lqkinl_nUY?si=MLvjPRkvkBPn6ucq https://youtu.be/j8Pk13nOYkc?si=yRiHCntjB08fEcfE https://youtu.be/vKJOopUOb74?si=jsyhZ6f2oIXir1tv https://youtu.be/SybXu7oWwHI?si=1xW5dBOLZEwCxQu- https://youtu.be/XmMKDyCHA90?si=MFWlT2jaDeXL-wKU https://youtu.be/BRO_dmFg8_w?si=UJHAFttbn85eWsxf https://youtu.be/tp2qI4tBox8?si=YFBlaqGXbxw0sNzp