Potential CSA models
Agro-forestry (intercropping of agricultural crops with forest trees)Ngày đăng: 22/05/2017Lượt xem: 1709Agro-forestry" is the concept of integrated production systems, combining agriculture and forestry, rather than a production practice. In this document, the agroforestry practice is used to talk about the intercropping practice of agricultural crops with forest trees, with the aim to generate more income for farmers before harvesting forest trees. At the same time, it also creates the source of cover materials, soil protection, anti-erosion when the forest plants have not closed canopy and restrict weed
Agroforestry practices include the cultivation, management and care of forest trees according to conventional techniques, and in the early stages (in the period of basic construction, 1 to 5 after the planting of forest trees), intercropping of short-term crops (peanuts, soybean, black beans, maize, upland rice, ginger, ginger, etc.) in the gap between rows of forest trees. Need fertilizer and intercrop care. When the forest tree is large enough and the canopy cover almost all of the ground, intercropping is not appropriate. In the Northern mountainous areas in particular and in the country in general, farmers often intercrop different types of trees, including short-term trees, fruit trees, and forest trees in the VAC production system (garden-fishpond-animal husbandry).
At present, some agroforestry experiments are being implemented by the Institute of Agricultural Science and Technology of the Northern Mountainous Agriculture & Forestry Science Institue, with rubber trees, a new plant in Son La, Dien Bien and Yen Bai. However, the application of agroforestry with rubber trees is still limited, due to the large area of rubber plantations under the management of the rubber joint stock companies in the area. In addition, the ICRAF project (2010- 2016) is being implemented in all three provinces, and some agroforestry models are being developed (intercropping, tea / fruit trees intercropping with forestry and food crops). These models are currently only in the testing phase.
Figure 1: Figure 1: Maize intercropped with rubber (left;), upland rice intercropped with rubber (right)
The main difficulties in expanding agro-forestry applications.
- Generating on input cost and labor cost for intercropping plants
- Lack of suitable intercropping cultivars
- Market limit for some intercropped products
Table 1. List of selected sites with agro-forestry applications
Place Applicant Year (*) Area (ha) Type of tree Son La province
Thuan Chau District (Tong Lanh, Tong Co communes) Household 2009 150 Food crops intercropped with rubber trees on sloping land
Yen Chau district (Chieng Pan, Chieng Sang communes) Household 2009 265 Food crops intercropped with rubber trees on sloping land
Moc Chau district (Xuan Nha commune) Household 2011 50 Food crops intercropped with rubber trees on sloping land Dien Bien province Household Food crops intercropped with rubber trees on sloping land
Dien Bien district Household 2010 10 Food crops intercropped with rubber trees on sloping land
Tuan Giao district Household 2011 15 Food crops intercropped with rubber trees on sloping land
Muong Nhe district Household 2010 10 Food crops intercropped with rubber trees on sloping land
Muong Cha district Household 2010 12 Food crops intercropped with rubber trees on sloping land Yen Bai district Household
Van Yen district (Chau Que Thuong commune) Household 2012 4 Food crops intercropped with rubber trees on sloping land
Yen Binh district (Phuc An and Vinh Kien communes) Household 2012 15 Cassava intercropped with eucalyptus or acacia
(*) The area is listed at the year in the table. However, at the present time the area and application situation may be different.
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