Nitrogen as Plant Nutrient Element Nitrogen as Plant Nutrient Element Please Login to view this lesson. Login Page Back to the course SLM201: Principles of Soil Science Lessons Some Basic Concepts of Soil 11:52 Origin and Development of Soil (Soil Genesis) 11:47 Physical Properties of Soils 10:49 Soil Classification and Survey 11:30 Plant Growth Requirements 12:31 Water in the Soil Plant System 12:31 Soil Aeration and Temperature 12:20 Soil Organic matter and Soil Organisms 11:01 Soil reaction Acidity and Liming 09:22 Soil Colloids and Ion Exchange in Soils 11:19 Load More