Complex sentence: Liebig's Theory of Mineral Nutrients established the foundation of agricultural chemistry, identifying the chemical elements of Nitrogen (N), Phosphorus (P), and Potassium (K) as the essentials of plant growth.
Split into simpler sentences: Liebig's Theory of Mineral Nutrients established the foundation of agricultural chemistry. Liebig identified the chemical elements of Nitrogen (N), Phosphorus (P), and Potassium (K) as essential to plant growth.