Technologies
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.:: Advanced Search This is the TECA search form to look for proven technologies in the database. You are invited to search technologies in your field of expertise. Selecting any of the options will result in a list of technologies within the selected category. The list only shows the technology titles and synopsis. More details about the technology can be found by clicking on the title of choice. |
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Simple water lifting device for small-scale irrigation. Impact: rising incomes because of higher yields and cropping intensity; increased employment in the supply chain; improved family nutrition. The principle is based on suction lift using a cylinder and piston to draw water from a source below ground level, for example a river or shallow groundwater. Two pistons are used, each connected to a treadle. The operator stands on the treadles, pressing the pistons up and down in a rhythmic motion. Suction and pressure pumps have been developed. Initial outlay and running cost however can be too high for many ordinary farmers. Preconditions for success include market for vegetable products; a water source within 6 m of the ground surface; an adequate water supply (>1 litre/second per pump); a concentration of market gardeners using traditional water-lifting methods; adequate land available for garden expansion.
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For lifting water from deep wells.
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Localised flood irrigation for individual plants, water is confined to the root zone volume.
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Maintenance of tree vigour and productivity, fruit quality, and control of pest and disease incidence in apple trees.
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Cheap and easy way to protect trees from frost injuries.
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Cleaning of apples from dust for better quality and higher production.
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More space for vines to grow, higher density per unit of land, higher yields, intercropping with berseem, lucerne, etc., protection from predators (birds) and pests, easy harvest.
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Combined with trickle irrigation, enables grape production in previously unsuitable areas, and reduces labour and water requirements.
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Dry fruit markets and demand in large towns and cities.
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High protein low fat nutritious food supplement, income generation, uses cheap materials.
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BRS Bonança is an upland rice cultivar developed by EMBRAPA Rice and Beans and recommended for sowing in the states of Goiás, Maranhão, Mato Grosso, and Piauí. BRS Bonança average grain yields were higher than the checks; flowered 80 days after germination; presented good cooking quality and resistance to the main rice diseases.
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Constant cash flow due to demand in the tourism industry, marketing when the price is high, improved diet of farmers.
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Feed supplementation is to make up for ration deficits ingested by ruminants by adding a food supplement high in energy, nitrogen or minerals. The aim is to satisfy requirements for maintenance and production of the herd to make the livestock more economic. Supplementation comes in two complementary ways which compete to improve the energy, nitrogen and mineral nutrition of the herd: a) significant specific additional nutrients to the animal; b) improved efficiency of microbial flora in the rumen to digest forage.
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Water harvesting techniques are important alternative techniques in areas and periods of water stress and also where water supplies are inadequate or irregular. The total costs involved in the water harvesting techniques are much less expensive than constructing large reservoirs and dams. However the actual cost-benefit analysis is site-specific.
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In developing countries, family poultry represents an appropriate system to contribute to feed the fast growing human population and to provide income to poor small farmers, especially women. It makes one of the best uses of locally available resources. Although requiring low resource inputs and generally considered secondary to other agricultural activities by smallholder farmers, this type of production has an important contribution in supplying local populations with additional income and high quality protein.
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The technology preserves forage resources for the dry season (hot countries) or for winter (temperate countries) in order to ensure continuous regular feed for livestock, either to sustain growth, fattening or milk production, or to continue production in difficult periods when market prices are highest. For hay to be profitable, it is essential to: - obtain a product of excellent quality, - to give it to animals whose production is maximal (dairy cows, draft animals, animals for sale between seasons). As for silage, which as a more elaborate product, it is recommended to reserve this for dairy herds.
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Fish farming is an agricultural activity that can deeply improve already existing farming systems. For example, it can increase the water availability to other cultures or it can increase the farm income when livestock is associated or when cultures are conducted in the pond itself (rice when full, other cultures when drained). On the other side, fish farming can also benefit from agricultural by-products generated by other activities, as they can be used to increase the quantity of plankton, that is the natural food of fish.
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Irrigation of small plots
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Kuhls are small irrigation channels along the hill gradient to maintain gravity flow of water. Kuhls take advantage of glacial water and are collectively operated.
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Earthen channels for irrigation result in heavy conveyance losses; irrigation efficiency is between 50 and 60 %. Similar water losses occur in dug-out ponds.
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Moisture conservation through flooding of fields during the rainy season; flood and run-off water is harvested in catchments.
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Standard size ponds for quick irrigation and to avoid conveyance losses, for independence from unreliable tubewell supplies, to plant timber and forage trees around the pond, and to improve the underground water table.
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To control water losses and to improve the efficiency of water usage.
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Can be used on most soils and for almost all crops except rice and jute. Also suitable for steep slopes. Not suitable for very fine textured soils.
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Induces artificial recharge in areas with severe groundwater depletion.