Available soil phosphorus (Olsen P) for soil health - OLD version, see description for new link

Описание к видео Available soil phosphorus (Olsen P) for soil health - OLD version, see description for new link

Note this video has been updated at:    • Measuring Available Phosphorus in Soi...   ! Video shows a procedure used to estimate available soil P using a field colorimeter and a phosphate reagent packet, along with filter paper and some homemade materials.

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