Original video: https://youtu.be/5MTIAwyEUVQ Lecture on: 1 December 2025 This lecture is a comprehensive guide to Crop Nutrition and Mineral Nutrient Absorption, foundational topics for Crop Physiology (AGR3301). We cover the classification of nutrients, the criteria for essentiality, and the complex process of nutrient uptake by plant roots. Essential Plant Nutrients We begin by defining nutrients and establishing the criteria for a chemical element to be considered essentia