TAILIEUCHUNG - Management of Organic Waste Part 14

Tham khảo tài liệu 'management of organic waste part 14', kỹ thuật - công nghệ, cơ khí - chế tạo máy phục vụ nhu cầu học tập, nghiên cứu và làm việc hiệu quả | Synergisms between Compost and Biochar for Sustainable Soil Amelioration 187 60 55 50 45 40 35 30 25 20 15 10 Plant height T1 BiomassTt Plant height T2 BiomassT2 0 5 0 0 Fig. 6. Crop oats Avena sativa response of two consecutive harvests on a sandy soil amended with different materials. Treatments comprised control only water mineral fertilizer kg N ha-1 kg p ha-1 and kg K ha-1 compost 5 by weight biochar 5 by weight and combinations of biochar 5 by weight plus mineral fertilizer kg N ha-1 kg p ha-1 and kg K ha-1 and biochar by weight plus compost by weight Schulz Glaser 2011 . Total plant weight in s andy soil Total plant weight in loamy soil Biochar-compost application amount Mg ha 20 cm Fig. 7. Crop oats Avena sativa response on a sandy left and loamy right soil with increasing biochar-compost amendments x axis at low biochar additions 3 5 and 10 kg per ton of compost different symbols compared to control soil without amendments and a commercial biochar-containing product TPN Schulz and Glaser unpublished . 188 Management of Organic Waste When looking at high biochar amounts crop oats Avena sativa yield significantly increased with increasing amounts of biochar and compost amendments both for sandy Fig. 8 left and loamy soils Fig. 8 right . However in both cases plant growth response was higher for biochar than for compost sand plant weight compost biochar loam plant weight compost biochar . Fig. 8. Crop oats Avena sativa response on a sandy left and loamy right soil with increasing biochar-compost amendments at high biochar additions Schulz Glaser unpbulished . Can combined biochar compost processing contribute to optimized material flow management By taking into account that terra preta formation was originally induced by human activity relying on the combined incorporation and biological transformation of charred stable OM on the one

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