![]() |
||||||||||||
| Vivero Organopónico Alamar Small Urban Farms Yield Big in Havana |
||||||||||||
Graduate student and former Kansas City horticulturalist reports on raised bed farming in Cuban capital.
My passion for urban sustainable agriculture as a solution to hunger, malnutrition and poverty led me to Cuba this summer to attend a conference on organic agriculture and to research Cubas intensive urban organic practices. Conventional agriculture with its reliance on the combustion of petroleum and coal for fuel as well as the production of agricultural chemicals is not only expensive, but also one of the biggest contributors to global warming. As a result, scientists and farmers have been searching for highly productive methods of farming that require fewer inputs. Nowhere has this been truer than in Cuba. Faced with a US economic embargo, the country lost 83% of its trade in 1989 when the USSR dissolved, sending the island nation into severe economic downturn.
The organopónico is filled with about 50% high quality organic material such as humus de lombriz (worm castings) or all types of manure which improves the structure and adds nutrition and living organisms to the soil; 25% composted waste such as rice husks or coffee bean shells; and 25% native soil. In order to conserve the fertility of the soil, no less than 20 pounds of organic material per 10 square feet per year is added to the container. Depending on the plant, seeds can be sown directly in the container or seedlings can be transplanted. Cubans plant approximately 56 species of vegetables and fruits in organopónicos in the course of a year, from spices to tomatoes, cucumbers, beets, onions, carrots and lettuce. By containing the soil, its quality can be maintained indefinitely. Much less soil is lost through erosion. The contained bed also retains moisture. Repellant plants such as marigolds, vinca, the flower of Jamaica, basil, and neem trees are planted around the containers at various distances to repel harmful insects such as aphids and various beetles. Sunflowers and corn are planted around the beds to attract beneficial insects such as lady bugs and lace wings. Sunflowers and corn are also planted in rows throughout the field to change the flow of pests in the field. Colored traps, sticky paper or plastic funnel-shaped bottles, usually yellow or blue, are stationed throughout the beds to trap harmful pests. Biological controls from the neem tree and tobacco plants for example, and predator insects, as well as biofertilizers are used to increase productivity. The beds are meticulously cleaned of weeds or undesirable plants.
Good nutritious soil and adequate water are the basis for healthy, resistant plants and are key to the organopónico in Cuba. The organopónico has increased food productivity in Cuba enormously without a concomitant increase in the use of fossil fuels. In one year, Alamar Organopónico in Havana, where I volunteer, produced 44 pounds of produce per 10 square foot, a very high yield. Furthermore, as one experienced farmer movingly pointed out, Cuban farmers may not be as productive as they were using conventional agriculture, but the costs in terms of energy consumption, are much less. Less, too, are the costs to society in terms of adding to global warming and other forms of pollution that threaten to destroy the life-support system we all depend on. |
||||||||||||
|
||||||||||||
|
||||||||||||