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In low-input land-use systems combining timber trees with shade-tolerant understorey crops, it is essential to establish the effects of tree density upon weeds and the contribution of weeds to competition and nutrient cycling. Adjusting tree density may alter weed competition for light, water and...


Norgrove, L.Hauser, S.Weise, S.F.[Response of Chromolaena odorata to different tree densities in a tropical agrisilvicultural system. Aboveground biomass production, partitioning, decomposition and nutrient release]Response of Chromolaena odorata to different tree densities in a tropical agrisilvicultural system. Aboveground biomass production, partitioning, decomposition and nutrient release

Tree litter fall was monitored for 2 years in two Terminalia ivorensis A. Chev. plantations in the humid tropics of southern Cameroon. The plantations were 6 and 17 years old when they were each thinned to two timber stand densities (TSD) and understorey food crops were introduced. Leaf litter wa...


Norgrove, L.Hauser, S.[Leaf properties, litterfall and nutrient inputs of Terminalia ivorensis at different tree stand densities in a tropical timberfood crop multistrata system]Leaf properties, litterfall and nutrient inputs of Terminalia ivorensis at different tree stand densities in a tropical timberfood crop multistrata system

Agriculture and food production are predominantly soil-based, with only marginal portions based on hydroponics or the use of only biomass as a substrate. In this chapter, the factors aff ecting sustainable soil use will be elaborated. This is defi ned as factors that: • maintain or improve soil b...


Hauser, S.Norgrove, L.[The sustainability of the world’s soils]The sustainability of the world’s soils

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