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A field study was conducted to investigate the potential of residues from renewable energy production for fertilizing pastures. Six treatments including manure or biogas sludge, each combined with wood ash at 0, 1 and 3 t ha −1 were applied at the same N equivalent (190 kg N ha −1 ). Three soil samplings and two cuttings were carried out within one growing season (4 months). Plots...
In a greenhouse study we investigated the potential of wood ash amended composts to ameliorate acid tropical soils. Three composts (produced with 0%, 8% and 16% wood ash admixture, respectively), and two acid tropical soils, an Oxisol and an Ultisol from Cameroon were used for that purpose. In this paper we report the effects on the soil microbiota at the end of the cropping cycle (100 days soybean...
Within the framework aiming at assessing the potential risk of the use of wood ash amended composts to tropical acid soils, a greenhouse experiment was conducted with two acid soils (Oxisol and Ultisol) collected from Cameroon and amended with three types of compost 3:1 (w/w) prepared with 0, 8 and 16% wood ash prior to composting, respectively. They were planted with soybean (Glycine max L.) for...
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