🔥Czy nawożenie powschodowe kukurydzy ma sens? Straty N i błędy w stosowaniu cynku. Prof. Szczepaniak

We're back to our conversation with Professor Witold Szczepaniak! In today's episode on the e-pole channel, we focus exclusively on corn – a plant that only seems to forgive mistakes. We analyze how to wisely manage nitrogen and why zinc is an "insurance policy" for it in difficult years. Video recorded on May 4, 2026 In this video, you'll learn: ➤Nitrogen under the microscope: We compare the speed and availability of nitrogen from UAN and urea compared to liquid manure and manure. ➤Risk of "plant burning": Why can high nitrogen rates at sowing harm germination, and how does the depth of fertilizer mixing affect seedling safety? ➤Topdressing dilemma: Is it worth applying nitrogen at the 4-6 leaf stage? We analyze the risk of ammonia gas losses depending on the weather and soil pH. ➤Zinc – the foundation of yield: Why does corn need it at every stage? We explain the impact of zinc on the root system, cob set, and final starch content. ➤Application strategy: When to use microgranules and when to switch to foliar feeding? ➤Sulfates or oxides – what actually works? The professor also shares the results of multi-year studies on yield increase after zinc application – the results may surprise even the most skeptical! #corn #nitrogen #fertilization #advertisingcollaboration Table of contents: 00:00 Introduction 02:27 Mineral vs. natural nitrogen: Rate of nutrient release 04:00 The specificity of liquid manure and manure in corn cultivation 07:30 The risk of extended vegetation and grain moisture 10:20 High nitrogen doses at the start: Can you "burn" emergence? 14:20 Strip-till and nitrogen dosing 15:30 Top dressing: When is it a real help and when is it a waste of money? 18:00 Comparison of UAN, urea, and nitrate in top dressing 21:20 Why is zinc crucial for corn? (4 stages of yield formation) 26:00 Is it worth adding zinc on rich soils? 29:00 Research results: How much does zinc actually increase yield? 32:40 Natural fertilizers and the demand for micronutrients 34:20 Zinc forms: Sulfates vs. oxides – what and when to choose? Do you have questions about fertilizing your corn? Leave a comment – ​​we'll try to answer them together with the professor! 🔥Does post-emergence fertilization make sense for corn? N losses and zinc application errors. Prof. Szczepaniak