Superphosphate boosts beef production by increasing legume content in pastures.
Adding superphosphate to grass-legume pastures increases the legume content and helps beef cattle grow faster. Some people think this happens because there's more legume for the cattle to eat, but there's no proof of that. A study looked at how a little bit of superphosphate affects whether cattle prefer to eat legume in Stylosanthes-native grass pastures.