tailieunhanh - Báo cáo khoa học: nfluence des phosphates naturels et des mycorhizes à vésicules et à arbuscules sur la croissance et la nutrition minérale de Zizyphus mauritiana Lam. dans un sol à pH alcalin a Tiby Guissou"

Tuyển tập các báo cáo nghiên cứu về lâm nghiệp được đăng trên tạp chí lâm nghiệp quốc tế đề tài: Influence des phosphates naturels et des mycorhizes à vésicules et à arbuscules sur la croissance et la nutrition minérale de Zizyphus mauritiana Lam. dans un sol à pH alcalin a Tiby Guissou. | Ann. Sci. For. 55 1998 925-931 Inra EJsevier Paris 925 Article original Influence des phosphates naturels et des mycorhizes à vésicules et à arbuscules sur la croissance et la nutrition minérale de Zizyphus mauritiana Lam. dans un sol à pH alcalin Tiby Guissoua Amadou Moustapha Bâa Sita Guinkob Robin Duponnoisc Christian Plenchetted aLaboratoire de microbiologie forcstiere departement des productions forestieres Institut de 1 environnement et de recherches agricoles Centre national de la recherche scientifique et technologique . 7047 03 Ouagadougou Burkina-Faso b Departement de biologie et d ecologie vcgetale faculte des sciences et techniques . 7021 université de Ouagadougou Burkina-Faso c Laboratoire de nématologie Institut franyais de recherche scicntifique pour le développement en cooperation Orstom . 1386 Dakar Senegal 11 Inra station d agronomie 17 rue Sully 21034 Dijon cedex France Reẹu le 10 mars 1997 accepté 1c 28 mai 1998 Abstract - Rock phosphate and vesicular-arbuscular mycorrhiza effects on growth and mineral nutrition of Zizyphus mauritiana Lam. in an alkaline soil. The influence of vesicular-arbuscular mycorrhizae VAM and rock phosphate RP was studied on jujube Zizyphus mauritiana Lam. a multipurpose fruit tree in Sahelian agroforestry systems. Jujubes were inoculated or not by Glomus manihotis Howeler Sieverding Schenck in an alkaline sandy soil to which were added five levels of RP 12 of P et g p kg of soil equivalent to 0 775 1 550 3 125 et 6 250 kg p ha- . The jujubes seedlings grew poorly without mycorrhizal colonization and without RP applications figures la b . Non-VAM jujubes were able to utilize p from PN efficiently figure 1g . However VAM jujubes with RP applications achieved better results in terms of height biomass concentrations of p and N in stem plus leaves. Mycorrhizal dependency varied from 78 to 18 when RP applications increased figure Id . Mycorrhizal colonization was comparable at all levels of .