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Adoption Process of Agroecological Alternatives in a "Campesinos" Farming System in Yucatan, Mexico
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| Overview |
Green manures and cover crops, IPM, manuring, agroforestry and organic horticulture alternatives are developed, tested and transferred through participatory adoption processes with farmers. |
| Scale |
Field, household, subsistence farm, organization, collective, village, local region, bioregion |
| Location |
Sisal and Southern Yucatan zones (Merida, Sahcaba, Hocaba, Hunucma, Tekit, Mani, and other communities) (88°-90.1° W, 20.1°- 21°N) |
| Elevation |
0 to 152.5 meters |
| Climate |
Tropical Steppe and dry forest with coolest month 18 C (BSh) up north, and Tropical Savanna and forest with dry season in winter (Aw) down south. |
| Agricultural Region |
Plantation agriculture (G) up north, Rudimental sedentary cultivation (D) down south; and Shifting cultivation (C) spread all over the region. |
| Population Density |
From 1-10 persons / square kilometer, up to 25-50 persons / square kilometer in the gradients south to north of the state. |
| Principle Crops |
Improved Milpa: Maize (Zea mays), Beans (Phaseolus vulgaris, P. lunatus, Vigna unguiculata), Squashes (Cucurbita pepo, C. moschata, C. maxima) and Velvetbean (Mucuna deeringiana);
Organic Horticulture: Tomato (Lycopersicum sculentum), Chili (Capsicum capsici), Watermelon (Citrullus vulgaris), Cucumber, Melon, Radish, Coriander, Lettuce (Lactuca sativa);
Agroforestry systems: Ramon (Brosimum alicastrum), Leucaena (Leucaena leucocephala), Star grass (Cynodon nlemfuensis), Taiwan (Pennisetum purpureum), Guinea (Pannicum maximum)
Plantations: Sisal (Agave fourcroydes), Papaya (Carica papaya), Orange (Citrus aurantifolia), Lemon (Citrus lemon), Aloe (Aloe vera) |
| Domestic Animals |
Homegarden: Chickens (Avis spp.), Turkeys, Pigs, and Cattle (Bos indicus)
Agroforestry Systems: Goats and Sheep
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| Soils |
Mollisols (soils of the steppe with thick, black organic rich surface horizons and high base cation supply); Rendolls (M3) formed on highly calcareous parent materials (Rendzina). |
| Natural Vegetation |
Broadleaf deciduous, with shrubs forms with minimum height of 3 feet (Ds) up north; and Semideciduous, with broadleaf evergreen and broadleaf deciduous trees (S) down south. |
| Ecoregion |
Savanna province, with seasonally dry forest, open woodland and tall grass (Tr1) up north; and Rainforest province, constantly humid, with broadleaf, evergreen forest (Tr3) down south. |
| Basic Principles addressed |
Use Renewable Resources, Minimize Toxics, Conserve Resources, Manage Ecological Relationships, Adjust to Local Environments, Diversify, Empower People, Manage Whole Systems, Maximize Long-Term Benefits, Value Health |
| Page Author and Date |
Adrian Javier Lopez Perez, 2001 |
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Integration of agroecological alternatives such as: green manure and cover crops based systems (largely based on use of legumes, intercropping, minimum tillage, rotations, mulch management, improved local and introduced varieties), agroforestry systems (based on goats and sheeps managed under fodder, firewood, fruits and timber trees, and grasses), organic intensified horticultural systems (using integrated pest mangement (IPM), rotations, improved "ka'anche", composting, and intercropping), and intensive production of local landraces (such as "cashpelona" chickens); and the spreading out of different agroecological practices, technologies and managements such as: IPM, composting and fertility management, water management (rope's pumping), and biodiversity management (intercropping, mixed farming and rotations).
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About the agroecological alternatives: some keys for the success have been starting from knowledge of traditional agricultural systems and the environment, diversification, use of local resources, use of local landraces, recovering of local varieties, intercropping and rotation schemes, improving fertility with local-internal improved inputs, synchronization of nutrient fertility and availability with the improvement of soil life and organic matter as well as water (through mulch and soil management, sowing dates, and intercropping patterns), use of plant-plant and plant-insect positive interactions as base for IPM plans, and further integration of animals with crop products and byproducts.
About the strategy: Agroecological alternatives are developed, tested and transferred through participatory farmers' adoption processes through schemes such as farmer to farmer, farmers' experimentation, farmers' field schools, training centers for farmers, "campesinos" local promoters, and microcredit systems. Encouraging knowledge and learning based alternatives (including farmers in research, development, design, testing, training, promotion and extension of the alternatives) is the best path for sustainability of adoption processes and rural development.
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Use Renewable Resources
Highly labor based systems with low use of fossil energy, relying mostly on highly efficient cultural management practices.
Minimize Toxics
Low application of agrochemicals in the agroecosystems, inoculants, plant regulation substances, and chemical fertilizers to the land.
Conserve Resources
Efficient management of water and diversification with native landraces.
Manage Ecological Relationships
Intercropping of green manure and cover cropping legumes with maize.
Adjust to Local Environments
Diversification of milpa according to soils heterogeneity and topography, under rainfed conditions.
Diversify
Intercropping and more intensive rotations with local native landraces and some highly adapted introduced species and varieties of crops allow farmers increase the agrobiodiversity at different scales (farm, community, landscape and region), while respecting the forest at the same time.
Empower People
Include local people in the decision making process, through the use of highly extended participatory training processes, encouraging networks of "campesinos" promoters directly linked to local farmers, and encouraging microcredit schemes.
Manage Whole Systems
Integration of products and byproducts of green manure and cover crops based on milpa systems with animals feeding in agroforestry systems and using residues from both for producing enriched compost allows farmers better maneuvering capacities to manage their farming systems though resources allocation, low external inputs use, and improved rotations and intercropping schemes.
Maximize Long-Term Benefits
Green manure, cover cropping, and agroforestry systems are the best examples of obtaining long-term based benefits with higher returns to labor, capital, and land after some years of adoption, and have proven to do better as compared with their best competitive conventional alternatives.
Value Health
Low use of agrochemicals, by reducing the frequency and quantity of sprayings of herbicides and pesticides will largely improve the health safety for farmers in the region.
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