An improved granary constructed from brick, concrete slabs, wire mesh and thatch is used in Zimbabwe. Internally the store has 6 separate compartments with a total capacity of 3 tonnes. Pest control is by insecticide admixture.
Storage Period: 0-6 months
Capacity: 3t - 3t
Lifespan: 5 year - 5 year
Initial cost: US$ 133 - 233
Cost per tonne per year: US$ 9 - 16
All cereal grains (Zimbabwe)
Materials used: Brick pillars, wire-mesh reinforced concrete slab, brick wall, thatch grass roof
Locations made: Local trained artisans
Life span: 20-25 years. Models constructed in Zimbabwe in 1993/4 are still functional. Lifespan depends on constant and adequate roof cover with eaves extended to protect the granary walls.
Marketing and promotions: Have been promoted erratically throughout Zimbabwe through government departments and NGOs
Success and nature of marketing: No adoption studies have been done. NGOs typically built for target households. Government typically erected one to serve as a model and nucleus of technology dissemination
Training as part of the campaign:
Training took 2 forms:
- Hands-on training of builders in the target sites. The builders would then be expected to serve other customers along business lines
- Training of extension officers and mechanisation technicians on grain postharvest management
The training would be similar to that of the metal silos
Degree of adoption: No study done to determine the extent of adoption.
Reason for adoption:
- Reduced pest entry into the store
- Improved security against theft
Weaknesses of this store:
- Fire could damage the roof
- Not women-user friendly, as someone has to climb into the granary compartments for routine grain withdrawal
Barriers to adoption:
- High cost
- Problems coordinating building time/builders availability with farmers resources/timing
- Train more builders so there can be more competition
- Introduce a group approach, so they take turns to raise resources for constructing a granary for each member, e.g. by selling part of the harvest and setting aside part of the moment for a granary
Use by institutions: Social welfare uses under the “Zunde RaMambo” scheme which caters for the less privileged in society such as orphans. It is coordinated by the traditional leaders.
After uses: No comment yet
What to like:
- Durable structure
- An adaptation of traditional granary
- Reduces LGB problem if combined with an effective pesticide
- The multi-compartment nature enables farmers to store different types of grain under one roof, allowing grain budgeting or allocation for different purposes or to different people.
What to dislike: Frequent re-thatching is required and sometimes the thatch grass may not be easily available because of veld fires or drought.