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Fisheries Leaflet No. 1: Fertilizing
Fisheries Leaflet No. 1
A GUIDE FOR FERTILIZING FISH PONDS AND LAKES
Also view videos on fertilizing ponds.
To obtain high production of harvestable-sized fish from ponds and lakes, it is necessary that a good fertilization program be practiced each year. Application of fertilizer produces an abundance of plankton algae, aquatic worms, insect larvae and other aquatic organisms which serve as food for fish. In addition to increased production of fish, proper fertilization will also control most types of undesirable aquatic weeds and algae. Fertilizer does not keep fish from biting.
1. Begin fertilization when the water temperature stabilizes above above 60° F, usually between late February and April.
2. Use per acre for each application one of the following:
3. Make 3 applications at 2-week intervals. Use a fertilizer platform with granular fertilizer if possible.
4. Make additional applications of fertilizer every 3 to 4 weeks, or when the water clears so that you can see deeper than 12-18 inches into the water. Ponds and lakes normally require 10 to 12 applications of fertilizer each year.
5. Discontinue fertilization when water becomes cold in November.