1. Delineate critical areas that require different crops and management practices.

  2. Identify suites of suitable crops, crop rotations, and conservation practices for each management area.

  3. Develop a landscape-scale precision-agriculture system.

  4. Apply policies, education, and programs that address social and economic concerns related to the adoption and implementation of the land-scape-scale precision-agriculture systems.

  5. Monitor and document the new system’s performance toward production and conservation goals.

  6. Re-evaluate the system and make adaptive changes to improve its performance.

In summary, the important message from the above examples and guidelines is that the technology needed to implement a sustainable landscape vision of biofuel production exists and that the practices can already be implemented efficiently and economically.

REFERENCES

Kitchen, N.R., K.A. Sudduth, D.B. Myers, R.E. Massey, E.J. Sadler, and R.N. Lerch. 2005. Development of a conservation-oriented precision agriculture system: Crop production assessment and plan implementation. Journal of Soil and Water Conservation 60:421-430.

Lerch, R.N., N.R. Kitchen, R.J. Kremer, W.W. Donald, E.E. Alberts, E.J. Sadler, K.A. Sudduth, D.B. Myers, and F. Ghidey. 2005. Development of a conservation oriented precision agriculture system: Water and soil quality assessment. Journal of Soil and Water Conservation 60:411-421.

USDA-NRCS (U.S. Department of Agriculture, Natural Resources Conservation Service). 2007. National Soil Survey Handbook, Title 430-VI. Washington, D.C.: USDA-NRCS.

Williams, C.L., W.W. Hargrove, M. Liebman, and D.E. James. 2008. Agroecoregionalization of Iowa using multivariate geographical clustering. Agriculture, Ecosystem and Environment 123:161-174.

Yan, L., S. Zhou, L. Feng, and L. Hong-Yi. 2007. Delineation of site-specific management zones using fuzzy clustering analysis in a coastal saline soil. Computers and Electronics Agriculture 56:174-186.



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