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|Title:||Application of char products improves urban soil quality|
|Keywords:||Approved soil mix (ASM)|
Mean weight diameter (MWD)
|Citation:||Ghosh, S., Yeo, D., Wilson, B., Ow, L.F. (2012-09). Application of char products improves urban soil quality. Soil Use and Management 28 (3) : 329-336. ScholarBank@NUS Repository. https://doi.org/10.1111/j.1475-2743.2012.00416.x|
|Abstract:||Urban soils are a key component of the urban ecosystem but little research has considered their quality and management. The use of char or partially combusted char products as a soil amendment is becoming popular worldwide because of perceived benefits to fertility and the potential for increasing carbon sequestration. In this study, we assessed the effect of applying coarse and fine char material on the quality of four different types of soil-based root-zone mixes typically used for turfgrass and general landscaping in Singapore: clay loam soil, approved soil mix (ASM, 3 soil:2 compost:1 sand), 50:50 (sand/soil) and 75:25 (sand/soil). Char briquettes made from sawdust were mixed thoroughly at rates of 25, 50 and 75% by volume with the soil mixes. Results showed that addition of char (both coarse and fine) significantly enhanced the carbon content of the mixes, with the largest increase being associated with the 50% and 75% additions. Soil nutrients (total N, extractable P, K, Ca and Mg) and mean weight diameter of aggregates were also significantly increased following the application of char. The clay loam and the 50:50 and 75:25 soil mixes were more responsive to the addition of char than was ASM. © 2012 The Authors. Journal compilation © 2012 British Society of Soil Science.|
|Source Title:||Soil Use and Management|
|Appears in Collections:||Staff Publications|
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