many-sided and include multi-purpose windbreaks, riparian
buffer strips, contour planting for erosion control and fertility
planting of nitrogen-fixing trees. Furthermore, because alley
cropping can be managed as a productive but at the same time
low-input system with a reduced demand of fertilizers
(especially ifnitrogen-fixingspecies suchas blacklocust (Robinia
pseudoacacia L.) are cultivated), of water (depending on the
structure and plant species) and of manpower, in particular, its
popularity is growing ondry sites exhibiting lowfertile soils and
on reclamation sites (Gru¨ newald et al., 2005).
many-sided and include multi-purpose windbreaks, riparianbuffer strips, contour planting for erosion control and fertilityplanting of nitrogen-fixing trees. Furthermore, because alleycropping can be managed as a productive but at the same timelow-input system with a reduced demand of fertilizers(especially ifnitrogen-fixingspecies suchas blacklocust (Robiniapseudoacacia L.) are cultivated), of water (depending on thestructure and plant species) and of manpower, in particular, itspopularity is growing ondry sites exhibiting lowfertile soils andon reclamation sites (Gru¨ newald et al., 2005).
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