U.S. Sugar has pioneered the implementation of special land and
water management systems called Best Management Practices (BMPs)
developed in partnership with University of Florida’s Institute
for Food and Agricultural Sciences to minimize phosphorus runoff.
Irrigation for sugar cane is achieved by controlling the
level of the water table under the soil. In the rainy season, the
fields receive about 55 inches of rainfall. In the dry season, conveyance
canals and nearby Lake Okeechobee
supllement rainfall as the irrigation sources. The Company built
and maintains a system of canals that brings water to the fields
in the dry season and carries
off excess water.
The soil in the farming area is naturally very high in phosphorus,
as a result of sediment built up by Lake Okeechobee spilling over
its banks which can run off into ground water. Soil sediments --
not fertilizer -- carried in farm runoff are a potential source of
phosphorus in
the water. To reduce potential for phosphorous runoff, BMPs include
removing phosphorus-containing
sediment from canals and ditches before the water leaves Company
property.
The Company has adjusted the timing and frequency of pumping
to reduce the movement of sediments. Steps such as laser leveling fields
have been taken to reduce or stop wind erosion.
For the past several years, sugar farmers have averaged a 50 percent
reduction in nutrients leaving the farm. Thanks to the Company's careful
water management, U.S. Sugar farming operations contribute four gallons
of water to South Florida's water supply for each gallon they use.