Management of Native Bacuri Trees (Platonia insignis)

Finalist 2013

Institution
Empresa Brasileira de Pesquisa Agropecuária - Embrapa Amazônia Oriental
Address
Trav. Eneas Pinheiro, s/n - Marco
Email
cpatu.chgeral@embrapa.br
Phone
(91) 3204-1082
Responsible for technology
NamePhoneEmailSocial Networks
Alfredo Kingo Oyama Homma(91) 3277-0088alfredo.homma@embrapa.br
José Edmar Urano de Carvalho(91) 9988-5687jose.urano-carvalho@embrapa.br
Antônio José Elias Amorim de Menezes(91) 8806-4114antonio.menezes@embrapa.br
Technology Summary

The sprouts of native bacuri trees are exploited in devastated areas where this species existed but was cut in the past. Their management consists in planting these sprouts with proper spacing and reducing competition with shrubs, to create orchards.

Main Theme

Environment

Problem Solved

The pulp of the bacuri fruit is highly valued: in 2005 it was worth R$ 10.00/kg and its price is now three times higher. The supply of bacuri pulp is totally collected by family farmers who have bacuri trees that remained in areas where deforestation occurred to give room to the lumber industry or agriculture. In these six years of implementation of the project, 25 courses were given about the management of native bacuri trees, training 718 family farmers and technicians from 16 municipalities in the State of Para. The managed areas are concentrated in the municipalities of Maracana, Bragança and Augusto Correa. At least 100 farmers, in a total area of 25 hectares in the northeast of Para and in the Island of Marajo are using the management practices recommended by Embrapa Eastern Amazon, in cooperation with Emater Para, Amazon Bank, producers' unions, local Secretariats of Agriculture, ICMBio, Camta and SAGRI, among others. The first bacuri trees are producing in these managed areas, as well as grafted plants and others sprouting naturally, forming agroforestry systems, with a view to the future market for this fruit that is cultivated without the need of seedlings.

Solution Adopted

The bacuri tree is one of the few tall amazonic tree species to have sexual (with seeds) and asexual reproduction (sprouting from roots). This results in the regrowth of bacuri plants in areas where they were eliminated. With management and proper spacing, this technique allows a new alternative for degraded areas in Para, Maranhao and Piaui. The density of bacuri trees regrowing may reach 40 thousand plants per hectare. Management consists in selecting the most vigorous sprouts occuring in abandoned areas and preserving them spaced in every 10 meters. Yearly crops can be cultivated in the intervals, in the initial years, to reduce costs and perennial cultivations can establish agroforestry systems. This system can be developed in two alternative ways: the radical one eliminates all other species and preserves only the bacuri plants; the other, a moderate one, preserves other vegetal species with an economic significance. To begin managing bacuri trees in secondary forests, some phases must be considered. In the first phase, choose the area where they occur and avoid preserving just one type of bacuri tree, originated from a single plant, because they would come to bloom, but would not fructify, considering that the bacuri tree must be fertilized in order to bear fruit. For this operation, one day of work is needed to choose and mark the area to be managed. Then follows the elimination of vines and the cutting out of some species which compete with the bacuri plants. This is done to liberate the desired plants and to facilitate the entrance of sunlight. After this operation the area must be monitored and supervised every six months. The operation must be carried out to eliminate re-sprouting. The cutting out must consider plants with different types of leaves and flowers, to permit the identification of the diversity of the species of bacuri that are productive and to select those with shafts long enough and bearing a well distributed canopy. Second phase: consists in the gradual elimination of canopies competing with the selected bacuri plants, in a way that does not harm the desired plants. In this phase, the bacuri plants must be spaced two by two meters, three by three, five by five, eight by eight, up to ten by ten meters. The species withdrawn from the managed area must be used by farmers in the construcion of rural houses, in fences or in the preparation of charcoal. Six per diems are needed to implant the managed area and three to maintain it every six months. Third phase: after all the above-mentioned operations comes the establishment of yearly crops according to the needs of the farmers. The cultures successful in the Northeast of the State of Para were those of cassava, beans and corn. To balance the management of the bacuri trees together with the yearly crops, farmers use the same amount of per diems as in traditional cultures. The intervals between trees can also be used for murici trees, mangaba and cashew trees, for instance, because they resist the drought and poor soils prevalent in these areas. An important measure to be taken is the protection of these managed areas from the burning carried out in neighboring properties.

Technology Attachments
LegendDownload
Viabilidade técnica e econômica da formação de bacurizal mediante manejo de rebrotamentoBaixar
Levantamento Socioeconômico do Bacurizeiro (Platonia insignis Mart.) Nativos das Mesorregiões do Nordeste Paraense e do MarajóBaixar
Métodos de Propagação do Bacurizeiro (Platonia insignis Mart.)Baixar
Do Extrativismo a DomesticacaoBaixar
Bacuri Ciencia HojeBaixar
Manual de Manejo de BacurizeirosBaixar
Manejo de BacurizeirosBaixar

Last modified date: 9/16/16 11:54 AM