Erosion control: Prairie acacia may provide ground cover vegetation for critically eroding areas to reduce soil erosion and improve water quality.
Livestock: Prairie acacia forms a symbiotic association with rhizobial bacteria, and this association fixes atmospheric nitrogen. The measured crude protein percentage of prairie acacia leaves ranges from 16 to 29. Prairie acacia can withstand frequent cutting or defoliation. Prairie acacia has been extensively investigated as a fodder shrub/tree for tropical areas. Reports describe prairie acacia as having low to moderate palatability. The leaves of prairie acacia contain tannins and non-protein amino acids. These compounds are toxic to some animals. Sudden dietary supplementation with prairie acacia fodder at high concentrations caused death in sheep. The signs of toxicity from prairie acacia are similar to those exhibited by sheep fed flat pea (Lathyrus sylvestris) hay. Rabbits fed prairie acacia leaves (20% of the diet) exhibited a progressive reduction of intake and weight reduction. All rabbits consuming prairie acacia showed central nervous system disturbances. Researchers, in Stephenville, Texas, compared 15 native perennial herbaceous legumes for herbage production, crude protein percentage, and laboratory measurements of digestibility. Prairie acacia exhibited high, compared to the other species, herbage yield and crude protein percentage. The laboratory measurements suggested that prairie acacia is more digestible to livestock than other species tested
Restoration: Prairie acacia is a hardy and drought tolerant plant that is useful for revegetation of land disturbed by mining or road construction.
Wildlife: Prairie acacia is browsed by white-tail deer. It is a prolific seed producer. Quail and other birds will utilize the seed for food and the vegetation provides cover for small animals and wild birds.
Alley Cropping: Prairie acacia has potential as a nitrogen fixation tree for alley cropping systems in the Caribbean and other subtropical and tropical areas.
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