The Research Institute of Organic Agriculture (FiBL) has released the following new publication:

Assessment of Alternative Phosphorus Fertilizers for Organic Farming: Sewage Precipitation Products (Fact sheet)
https://www.fibl.org/de/shop/artikel/c/duengung/p/1665-sewage-precipitation-products.html
The fact sheet describes the most important aspects to assess the suitability of sewage sludge precipitation products for use in organic farming.
Cheers,
Nadia


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