Abstract
By ploughing in the humus layer and soil vegetation, simultaneous CaP application and subsequent N fertilization it is possible to ameliorate acid loess loam soils. Under favourable climatic conditions a high growth performance of Picea abies (L.) Karst. can be attained after such ameliorations.
Under these fast-growing pure spruce stands a new humus layer develops. Already during the first 15 years of growth of such plantations considerable quantities of nutrient elements accumulate in the humus layer. After application of CaPN (and CaPNK respectively) the Al level in spruce needles decreases, while the Al content in the humus layer increases. In spite of amelioration this newly developing humus layer is rather acid.
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Hunger, W. Soil condition, nutrition and growth performance of Norway spruce (Picea abies [L.] Karst.) in fast-growing plantations. Fertilizer Research 10, 243–250 (1986). https://doi.org/10.1007/BF01049354
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DOI: https://doi.org/10.1007/BF01049354