Mango (Mangifera indica L.) nursery nutrition with mycorrhiza and fertilizer treatments
1999
Santizo-Rincon, J.A. | Becerril-Roman, E. | Garcia-Perez, E. | Romero-Gomezcana, N.R.(CECHILPO-INIFAP-SAGAR, Chilpancingo (Mexico))
Study in mango nursery nutrition was carried out in pre and post grafting stages. Criollo mango was used as rootstock and cultivar Manila as top. The evaluated factors were: inoculation with mycorrhizic fungus Glomus mosseae (30 g soil-inoculum/plant), chemical soil fertilization (4-1-4 g NPK/plant) and foliar fertilization (Bayfolan Forte 5 ml/L). A 2**(3) factorial experimental design with confusion technique was used. Seven destructive plant harvests were made, six before grafting and one after, fresh and dry weight of separated roots, leaves and stems as well as whole plants were recorded. For nutritional evaluations, foliar nitrogen, phosphorus and zinc were determined in each plant harvest, the determinations of all plant organs were realized in only two harvests: one before grafting and the other post-grafting. The analyses were made on concentration and content basis, by organ and in total. Glomus mosseae inoculation failed to show the expected effect because of the presence of indigenous mycorrhiza. Generally, soil fertilizer improved nitrogen nutrition, foliar fertilizer also improved nitrogen and zinc nutrition. Interactions were made and discussed too. The nutrimental accumulation was higher for nitrogen than phosphorus and for zinc, in this order. The average nutritional requirements for mango seedlings (criollo rootstocks) determined before grafting were: 733 mg for nitrogen, 77.6 mg of phosphorus and 478 micro g for zinc. Total nutrimental requeriments to reach the correct size for planting in the field after grafting were: 1018 mg for nitrogen, 269 mg of phosphorus and 522 micro g for zinc. The levels of foliar concentrations of nitrogen and phosphorus were sufficient in all plant harvests, zinc foliar concentration was deficient before grafting and sufficient post-grafting.
Show more [+] Less [-]AGROVOC Keywords
Bibliographic information
This bibliographic record has been provided by Kasetsart University