First Outdoor Grow Cookies Kush

i haven't posted here for a long time because i have programmed my own diary. the plant is developing very well. It's starting to smell really good. The flowers are sticky and smell delicious. The temperatures are really good at the moment, I hope it stays that way. what is noticeable is that the first leaves are turning yellow, could be a lack of nutrients or simply a normal process as the plant draws nutrients from the leaves during the flowering phase, which it stores there. i will keep an eye on it Day 65: 1l water with BIOCANNA Bio Flores