Viaene J, Reubens B, Willekens K, Van Waes C, De Neve S, Vandecasteele B
Flanders Research Institute for Agricultural, Fisheries and Food, Plant Sciences Unit, Crop Husbandry and Environment, Burg. Van Gansberghelaan 109, 9820, Merelbeke, Belgium; Department of Soil Management, Faculty of Bioscience Engineering, Ghent University, Coupure Links 653, 9000, Ghent, Belgium.
Flanders Research Institute for Agricultural, Fisheries and Food, Plant Sciences Unit, Crop Husbandry and Environment, Burg. Van Gansberghelaan 109, 9820, Merelbeke, Belgium.
J Environ Manage. 2017 Jul 15;197:338-350. doi: 10.1016/j.jenvman.2017.03.086. Epub 2017 Apr 9.
We investigated the potential of C-rich byproducts to replace wood chips as bulking agent (BA) during composting. The impact of these alternatives on the composting process and on compost stability and characteristics was assessed. Three BA (chopped heath biomass and spent growth media used in strawberry and tomato cultivation) were used for processing leek residues in windrow composting. All BA resulted in stable composts with an organic matter (OM) content suitable for use as soil amendment. Using chopped heath biomass led to high pile temperatures and OM degradation and a nutrient-poor compost with high C/P ratio appropriate for increasing soil organic carbon content in P-rich soils. Spent substrates can replace wood chips, however, due to their dense structure and lower biodegradation potential, adding a more coarse BA is required. Generally, the nutrient content of the composts with growth media was higher than the composts with wood chips and chopped heath biomass.
我们研究了富含碳的副产品在堆肥过程中替代木屑作为膨松剂（BA）的潜力。评估了这些替代物对堆肥过程以及堆肥稳定性和特性的影响。在条垛式堆肥中，使用了三种膨松剂（切碎的石南属植物生物质以及草莓和番茄种植中使用过的生长介质）来处理韭菜残渣。所有膨松剂都产生了稳定的堆肥，其有机质（OM）含量适合用作土壤改良剂。使用切碎的石南属植物生物质会导致堆温较高且有机质降解，得到一种碳/磷比高且养分贫瘠的堆肥，适合用于增加富磷土壤中的有机碳含量。用过的基质可以替代木屑，然而，由于其结构致密且生物降解潜力较低，需要添加更粗糙的膨松剂。一般来说，含有生长介质的堆肥的养分含量高于含有木屑和切碎的石南属植物生物质的堆肥。
