Энэ нь Link Таны хэл дээр байхгүй байгаа, Нь харах: English (en),
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www.sciencedirect.com/topics/agric...s/terra-preta

For instance, Terra Preta soils and other anthropogenic soils amended with PyC as char that has aged with time have shown a high capacity of nutrient retention and crop productivity (Cheng et al., 2008;

From: Advances in Agronomy, 2017