Understand specific adsorption or fixation of phosphorus in soil

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Soil Science Research - Federal University of São Carlos

Published on Premiered Feb 15, 2023
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The main colloids in tropical soils are organic matter, 1:1 clays, and oxides (Fe, Al, and Mn). These colloids, especially oxides, have variable or pH-dependent electrical charges and are therefore responsible for producing a significant amount of positive charges in the soil. These positive charges on the surface of these clays are responsible for the high retention of phosphate. Want to understand this subject better? Keep reading! If you have any questions, leave them in the comments so we can help you! Don't forget to visit our website! There, you will find all of our YouTube content organized in a super educational way and in the best study sequence for you: https://portalgepes.com/ Become a member of our channel and get benefits: / @gepes.soilscience Follow us on Instagram: / gepes.soilscience Want to suggest new content? Click here: https://forms.office.com/r/bdZ8cNvRVX 00:00 Introduction 00:40 What is specific adsorption or fixation of P in soil? 01:05 Which components adsorb/fix P in soil? 01:45 How does P adsorption/fixation occur in soil? 05:52 What are the disadvantages of P adsorption/fixation in soil? 07:16 What factors affect P adsorption/fixation in soil? 10:45 How to avoid or minimize the occurrence of P adsorption/fixation in soil? Soil Mineralogy Playlist: • Soil mineralogy: start here! Variable loads in soil: • Variable loads in soil: concept,...

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