Total-all ----------------Plant Food---------------
Year Fertilizer Nitrogen P2O5 Potash
-tons- -tons- -tons- -tons-
1950 7,625 NA 2,918 23
1960 13,656 284 4,686 394
1970 20,437 3,630 1,986 2,305
1980 21,827 4,528 2,610 3,578
1985 19,610 4,230 1,918 3,314
1990 20,644 4,115 2,002 3,425
1991 18,789 4,608 2,110 2,637
1992 21,769 5,318 2,129 3,084
1993 23,064 5,780 1,908 2,506
1994 23,684 5,881 1,670 2,493
1995 18,520 4,275 1,680 1,830
1996 20,300 4,919 1,799 2,235
1997 19,340 4,317 2,090 2,695
1998 24,055 5,699 2,653 2,632
NA-Not available.
Source: University of Missouri Annual Fertilizer Tonnage Report