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आर्ट ऑफ़ लिविंग में अमृत कृषि पर श्री श्री रविशंकर जी से चर्चा करते हुए श्री दीपक जी सचदे

Soils of India Soil can be defined as a mixture of small rock particles/debris and organic materials/ humus that develop on the earth’s surface and support the growth of plants. Soil Classification – Urvara vs Usara: In India, soil had been classified from the ancient period itself even though it was not as detailed as the modern classifications. In the ancient period, the classification was based on only two things; whether the soil was fertile or sterile. Thus, the classification was: In the modern period, when men started to know about the various characteristics of soil, they began to classify soil based on texture, colour, moisture, etc. Classification of Soils of India Alluvial soil: Red soil: Black soil / regur soil: Laterite soil: Desert / arid soil: Peaty / marshy soil: Forest soil: Mountain soil: Saline and Alkaline Soils: Reference: https://www.clearias.com

Nature captures only a small fraction of solar energy through photosynthesis, with different plants harvesting sunlight at varying efficiency levels.