Potássio K, Funções, Sintomas e adubos .I. Série Nutrientes

🔻🔻 Important Links 🔻🔻 📈 Our soil fertility assessment and fertilization recommendation course: https://canalagrobrasil.com/cursoadub... 👉 Want to receive the PDF of the classes? https://canalagrobrasil.com/conteudos 👉 Telegram Group: https://canalagrobrasil.com/telegram 👉 Want to talk to me? Email: [email protected] 👉 Subscribe to the channel Follow us on Instagram: @agro_brasil_br PDF on mineral nutrition http://www.dcs.ufla.br/site/_adm/uplo... Plant Nutrition Book https://amzn.to/2lTQK5H In tropical soils, potassium is present in low concentrations. Feddspar and mica minerals decrease significantly with weathering. pH at 6.5, K is more available. Function in plants: • Enzyme activator (the most important of all) biosynthesis of RUBISCO, the most abundant enzyme in plants, which initiates the Calvin cycle that starts the fixation of carbon dioxide in its organic form. • Regulator of osmotic potential: • Promotes the translocation of newly produced photoassimilates. • Foliar fertilization *Affects *application of systemic fungicides and insecticides. • (water stress) Deficiency symptoms: Marginal chlorosis in older leaves evolving into necrosis. Reduced carbohydrate translocation to the roots decreases their growth. Potassium-based fertilizers 2-5% of the plant's dry weight (beans, soybeans, and corn) Split application of potassium in corn is not ideal because more potassium is needed in the INITIAL phase. 🌾 Personalized consulting from AgroBrasil channel for rural producers, students, and professionals in the agricultural sector ✅ https://canalagrobrasil.com/consultor...