Setup — Solar-Azolla-Duck System
Site prep: Dig shallow trenches (6–12" deep) in parallel rows under planned panel rows. Line with clay or pond liner. Grade slightly so water flows trench-to-trench toward a settling basin at the low end.
Solar canopy: Mount panels on A-frame/overhead racking above the trenches, ~40% coverage for shade without killing plant growth elsewhere. Add gutters/channels on panel edges feeding rainwater into trench inlets.
Fill & inoculate: Fill trenches with water. Seed with Azolla (get local stock — pond supply, extension office, or aquaculture supplier). Let it establish full mat coverage before introducing ducks (1–2 weeks).
Fencing: Perimeter fence trenches to keep ducks contained but able to access water edges for grazing.
Stock ducks: Add Khaki Campbells once Azolla mat is established. Start light (don't overstock before mat can regrow) — increase flock size as mat production stabilizes.
Settling basin: Build a simple sump/basin at the trench outflow — concrete or lined pit, deep enough to let solids settle. Add a drawdown valve or pump port for pulling out compost solids and overflow water.
Optional Gambusia: Add Eastern mosquitofish (Gambusia holbrooki) to the settling basin for backup mosquito control. Free from local mosquito control offices in most FL counties.
Water testing kit: Get ammonia, dissolved oxygen, and pH test kits. Test weekly at minimum.
Operation loop:
- Ducks graze Azolla + get 60% commercial feed
- Manure drains into trench water → feeds Azolla growth
- Azolla mat regrows, blocks mosquito larvae, keeps filtering water
- Excess Azolla + drift debris flows to settling basin
- Basin solids → compost; overflow water → fertigate crop beds
- Surplus Azolla (whatever ducks don't eat) → harvest, dry or sell fresh as feed
Weekly maintenance:
- Check ammonia/DO levels
- Harvest surplus Azolla
- Collect eggs
- Pump/rake settling basin as needed
- Visual check on mat coverage (thin spots = mosquito risk + reduced N-fixation)
Scale-up flag: pilot on a small section (1/4 to 1/2 acre) before committing all 10 acres. Confirms manure-load/Azolla-regrowth balance before you're managing it across the whole site.
save