SARE » Products » Crop Rotation on Organic Farms » APPENDIX 4: Characteristics of Common Agricultural Weeds Relevant to Crop Rotation Crop Rotation on Organic Farms APPENDIX 4: Characteristics of Common Agricultural Weeds Relevant to Crop Rotation SARE Outreach Charles L. Mohler, Sue Ellen Johnson | 2009 | 154 pages PDF (2.0 MB) Order in Print $24.00 or call (301) 779-1007 to order. Search Download the PDF version of Crop Rotation on Organic Farms to see the full tables featured in Appendix 4: Characteristics of Common Agricultural Weeds Relevant to Crop Rotation (page 138 of the publication). Previous APPENDIX 3: Sources of Inoculum for Crop Diseases in the Northeastern United States Next APPENDIX 5: Crop Disease Pathogens Hosted by Common Agricultural Weeds