yr 〜
yr

Search results 5

Land use and soil erosion : a national linear programming model / Wen-Yuan Huang ... [et al.] (Technical bulletin ; no. 1742)

Land use and soil erosion : a national linear programming model / Wen-Yuan Huang ... [et al.] (Technical bulletin ; no. 1742)
Microform図書
1988<YCA-A 1.36:1742>
National Diet Library
  • Subject HeadingSoil erosion -- United States -- Mathematical models Land use -- United States -- ...

The erosion-productivity impact calculator as formulated for the Resource Conservation Act appraisal / John W. Putman, Paul T. Dyke (ERS staff report ; no. AGES 861204)

The erosion-productivity impact calculator as formulated for the Resource Conservation Act appraisal / John W. Putman, Paul T. Dyke (ERS staff report ; no. AGES 861204)
Microform図書
1987<YCA-A 93.44:AGES 861204>
National Diet Library
  • Subject HeadingSoil erosion -- United States -- Mathematical models Soil conservation -- United S...

The erosion-productivity index simulator model / John W. Putman ... [et al.] (Staff report ; no. AGES870602)

The erosion-productivity index simulator model / John W. Putman ... [et al.] (Staff report ; no. AGES870602)
Microform図書
1987<YCA-A 93.44:AGES 870602>
National Diet Library
  • Subject HeadingSoil erosion -- United States -- Mathematical models Soil conservation -- United S...

The Erosion-productivity economics model : a user's guide / Michael R. Dicks ... [et al.] (ERS staff report ; AGES870727)

The Erosion-productivity economics model : a user's guide / Michael R. Dicks ... [et al.] (ERS staff report ; AGES870727)
Microform図書
1987<YCA-A 93.44:AGES 870727>
National Diet Library
  • Subject HeadingSoil erosion -- United States -- Mathematical models Soil productivity -- United S...

Farm-level effects of soil conservation and commodity policy alternatives : model and data documentation / John D. Sutton (ERS staff report ; no. AGES 860116)

Farm-level effects of soil conservation and commodity policy alternatives : model and data documentation / John D. Sutton (ERS staff report ; no. AGES 860116)
Microform図書
1986<YCA-A 93.44:AGES 860116>
National Diet Library
  • Subject Heading...matical models Soil erosion -- United States -- Mathematical models Soil conservation -- United S...

Reached to the end of result.