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https://domenicoprisa.com/2019/09/26/article-bat-guano-and-nettle-slurry-urtica-dioica-l-used-as-biostimulants-on-delosperma-cooperi-and-sedum-rubrotinctum-plants/
Article: Bat guano and Nettle slurry (Urtica dioica L.) used as biostimulants on Delosperma cooperi and Sedum rubrotinctum plants