TREATMENT NEEDS FOR CROPLAND 



Since the treatment needs in the 1958 study reflected a projected 

 estimate of cropland adequately treated and needing treatment by 1975, 

 it is difficult to make comparisons with treatment needs shown in the 

 1967 study. A supplement to the 1958 study was prepared in May 1964 

 which lists the conservation practices that were appropriate to meet 

 the needs for each of the major kinds of land use. The quantity shown 

 for several practices, in many cases, overlapped and does not necessar- 

 ily fit into the management systems shown in the 1967 study. 



In 1958, the treatment needs were based on estimates of the county 

 committees and were not expanded from the inventory data. This is one 

 reason for updating the conservation needs study in 1967. In the later 

 study, land use and treatment was expanded from random samples and this 

 data then adjusted by county committees to reflect their best knowledge 

 of conditions in each of the fifty-six counties of Montana. 



The 1967 conservation needs inventory shows 5,885,229 acres (39.2 

 percent) of all cropland in Montana as adequately treated to prevent 

 soil loss and deterioration under present systems of management. 



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