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This video is part TWO of a 1/2 day training on "Introduction to Soil Science." This training gives a broad overview and introduction to some basic soil characteristics: phases (solid, liquid, gas), texture, density, structure, reaction (pH), plant-water relationships, organic matter, and nutrients.   PART ONE  /  OUTDOOR DEMO

After some classroom discussion, we went out into the ECHO Farm where we looked at soil profiles with different soil horizons to point out textural, color, density, and structural differences. Participants practiced determining soil texture by feel. Please go to our other video on the practical outdoor demonstration.

Special thanks to Dr. Landon Darilek for giving this presentation at the ECHO Asia Small Farm Resource Center in Chiang Mai, Thailand on 26 June 2020.

Click here to see the PPT presentation on our website, ECHOcommunity.org: Presentation Slides

Video Highlights:

00:00 Calculating soil textural makeup (sand, silt, clay)

20:00 Developing ability to identify different soil by mixing soil with water

28:15 Discussion on Sand soil

38:15 Discussion on Silt soil

41:15 Discussion on Clay soil