tailieunhanh - Báo cáo khoa học: "Effects of irrigation and nitrogen fertiliser on the growth and nutrient relations of Prunus avium L and ’Colt’ (Prunus avium x Prunus pseudocerasus) in the nursery and after transplantation"

Tuyển tập các báo cáo nghiên cứu về lâm nghiệp được đăng trên tạp chí lâm nghiệp quốc tế đề tài: "Effects of irrigation and nitrogen fertiliser on the growth and nutrient relations of Prunus avium L and ’Colt’ (Prunus avium x Prunus pseudocerasus) in the nursery and after transplantation. | 433 Ann Sci For 1994 51 433-445 Elsevier INRA Original article Effects of irrigation and nitrogen fertiliser on the growth and nutrient relations of Prunus avium L and Colt Prunus avium X Prunus pseudocerasus in the nursery and after transplantation NA Hipps KH Higgs LG Collard TJ Samuelson Horticulture Research International Perennial Crops Department East Mailing Kent ME 19 6BJ UK Received 18 January 1993 accepted 8 June 1994 Summary One-year-old seedlings of Prunus avium and hardwood cuttings of Colt were lined out and nitrogen fertiliser was applied at rates of between 0 and 9 g per tree either with or without irrigation. Nitrogen fertiliser had no effect on the growth and leaf mineral concentrations of either genotype. Irrigation increased the growth of both genotypes and the concentrations of p and K in the leaves but the concentrations of Mg and Ca were reduced. The following year the trees were lifted and replanted. The plants of Colt that had previously received irrigation produced longer total shoot lengths than unirrigated plants whereas there was no difference for p avium. The residual effect of irrigation slightly reduced the concentration of p in the leaves of both genotypes yet the concentrations of N K Ca Mg and Mn were unaffected. Prunus I nutrition nursery transplant growth Resume Effets de I irrigation et de la fertilisation azotee sur la croissance et la nutrition de Prunus avium et de Colt Prunus avium X Prunus pseudocerasus en pépinière et après transplantation. De jeunes semis de 1 an de Prunus avium et des boutures ligneuses du cultivar Colt Prunus avium X Prunus pseudocerasusỷ ont été plantés en ligne avec un faible espacement 0 3 m . Un engrais azote a été appliqué à des niveaux variant de Oà 9 g par arbre avec OU sans irrigation. Pour les 2 types de Prunus la fertilisation azotee n a pas eu d effet ni surla croissance ni sur la concentration en elements minéraux dans les feuilles. L irrigation a augmenté la croissance et les .

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