tailieunhanh - Báo cáo lâm nghiệp: " Biomasse et minéralomasse d’un taillis à courte révolution de peuplier Beaupré installé sur un sol acide hors vallée, amélioré par fertilisation"

Tuyển tập các báo cáo nghiên cứu về lâm nghiệp được đăng trên tạp chí lâm nghiệp quốc tế, đề tài: " Biomasse et minéralomasse d’un taillis à courte révolution de peuplier Beaupré installé sur un sol acide hors vallée, amélioré par fertilisation. | Ann Sci For 1997 54 649-665 Elsevier Inra 649 Article original Biomasse et minéralomasse d un taillis à courte revolution de peuplier Beaupré installé sur un sol acide hors vallée amélioré par fertilisation D Gelhaye J Ranger M Bonneau Equipe Cycles bioịyéoclúmiques Centre Inra de Nancy. 54280 Champenoux Re u le 25 juillet 1996 accepté le 18 novembre 1996 Summary Biomass and nutrient content of a short rotation coppice of Beaupre poplars planted on a non-alluvial acidic soil improved by fertilization. Improvement by fertilization was tested on the production of a short rotation coppiced SRC stand of Beaupre poplar in Luthenay-Uxeloup forest Nievre-France . Several treatments bringing p NPK or NPKCa were compared to a control without any improvement in a bloc experiment. The improvement of production was significant in all the treaments when compared to the control. NPKCa treatment was the best one. The absolute value of production is too low for an industrial development of short rotation forestry in these ecological conditions where water availability during the vegetation period seemed to be the primary limiting factor. The real potential of the site was not completly identified owing to the bad conditions for stand installation and the dry climate during the 1980s. Efficiency of nutrients for dry matter production in this short rotation coppice was more important than in the other stands previously investigated. Soil mineral enrichment was already apparent at the end of the first rotation. It will be necessary to test a fertilization restoring the nutrients drained during harvesting on the production of the next generation. short rotation forestry biomass I nutrient content fertilization Resume - Un essai d amelioration par fertilisation minérale de la production d un taillis à courte revolution TCR de peuplier Beaupré installé sur un sol forestier hors vallée a été realise en íồrêt de Luthe-nay-Uxeloup Nièvre . Divers traitements appoitant p NPK. OU NPKCa ont .