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Production practices for major crops in U.S. Agriculture, 1990-97 [microform] / Merritt Padgitt ... [et al.] (Statistical bulletin ; no. 969)

Production practices for major crops in U.S. Agriculture, 1990-97 [microform] / Merritt Padgitt ... [et al.] (Statistical bulletin ; no. 969)
Microform図書
2000<YCA-A 1.34:969>
National Diet Library
  • Subject Heading... United States Crop residue management -- United States Fertilizers -- Application --...

Residue and tillage systems for field crops [microform] / Len Bull (Staff report ; no. AGES 9310)

Residue and tillage systems for field crops [microform] / Len Bull (Staff report ; no. AGES 9310)
Microform図書
1993<YCA-A 93.44:AGES 93-10>
National Diet Library
  • Subject HeadingConservation tillage -- United States Crop residue management -- United States

Crop residue management and tillage system trends [microform] / Len Bull and Carmen Sandretto (An Economic Research Service report) (Statistical bulletin ; no. 930)

Crop residue management and tillage system trends [microform] / Len Bull and Carmen Sandretto (An Economic Research Service report) (Statistical bulletin ; no. 930)
Microform図書
1996<YCA-A 1.34:930>
National Diet Library
  • Subject HeadingCrop residue management -- United States Conservation tillage -- Unite...

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