6.99 pounds ( 3.17 kg ) of the daily load of phosphorus comes from croplands , 2.65 pounds ( 1.20 kg ) comes from groundwater .
0.89 pounds ( 0.40 kg ) comes from hay or pastures .
6.99 pounds ( 3.17 kg ) of the daily load of phosphorus comes from croplands , 2.65 pounds ( 1.20 kg ) comes from groundwater , and 0.89 pounds ( 0.40 kg ) comes from hay or pastures .