Learning,

 

488

   

  Community Relations and Service,

 

489

   

 Risks, Challenges, and Changes,

 

490

   

  Research Needs,

 

490

   

  Transportation,

 

490

   

  Farm Transition Concerns,

 

491

   

 Government Programs and Policy Involvement,

 

491

   

 Observations and Conclusions,

 

492

8

 

SUSTAINABLE AGRICULTURE IN SUB-SAHARAN AFRICA: “LESSONS LEARNED” FROM THE UNITED STATES

 

493

   

 The Importance of Context,

 

494

   

 Evolving Agriculture in Sub-Saharan Africa,

 

494

   

 Lessons Learned from the Green Revolution,

 

494

   

 A Second Green Revolution,

 

495

   

 Long-Term Evolution Towards Sustainability in Sub-Saharan Africa,

 

496

   

 Considerations of U.S. “Lessons” Learned,

 

497

   

 Transferability of Agricultural Practices for Improving Sustainability,

 

497

   

 Summary,

 

514

   

 References,

 

515

9

 

CONCLUSIONS AND RECOMMENDATIONS

 

519

   

 What is Sustainable Agriculture?,

 

520

   

 Defining Sustainable Agriculture,

 

520

   

 Measuring Progress Toward Sustainability,

 

521

   

 Toward Agricultural Sustainability in the 21st Century,

 

521

   

 Incremental Approach to Improving U.S. Agricultural Sustainability,

 

522

   

 Transformative Approach to Improving U.S. Agricultural Sustainability,

 

524

   

 A Systems Approach to Agricultural Research,

 

527

   

 Key Drivers of Change: Markets and Federal and Local Policies,

 

531

   

 Relevance of Lessons Learned to Sub-Saharan Africa,

 

532

   

 In Closing,

 

533

 

 

APPENDIXES

 

 

   

 A  Statement of Task

 

537

   

 B  Biographical Sketches

 

539

   

 C  Presentations to the Committee on 21st Century Systems Agriculture

 

545

   

 D  Follow-up of the 1989 Case Studies Featured in Alternative Agriculture Report: Topics of Discussion During Telephone Interview

 

549

   

 E  Dairy Farms: Topics of Discussion During On-Farm Interview

 

551

   

 F  Grain Farms: Topics of Discussion During On-Farm Interview

 

559

   

 G  Specialty-Crop Farms: Topics of Discussion During On-Farm Interview

 

565



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