Crop Residue Cover and Manure Incorporation â•fl Part II: â•œFine-Tuningâ•š the System

and planting of the next crop in that field. Each soil and residue-disturbing operation must be considered when evaluating the amount of residue that will remain for erosion control. (For a more complete listing of implements and residue amounts remaining, as well as more information about the influence of various factors on residue cover, Conclusions Results of this research project indicate that adequate residue cover can remain for effective erosion control with some configurations of manure injectors and applica-tors, particularly in corn or other non-fragile residue. However, the equipment must be selected, adjusted and operated with the dual objectives of manure and residue management, rather than the objective of simply disposing of the manure. The companion article titled " Crop Residue Cover and Manure Incorporation — Part II: " Fine-Tuning " the System " discusses some of these considerations. With this information, swine producers should be better able to select a manure management system that is also compatible with their soil erosion control objectives. Manure incorporation represents a compromise between best management practices for soil erosion control and manure management. Manure should be incorporated into the soil for odor control, increased availability of nutrients, and control of potential manure runoff. However, soil and crop residue disturbance should be minimized for soil erosion control. Values to estimate the amount of residue cover that will remain following the use of common manure application/incorpo-ration components have been presented in the article titled " Crop Residue Cover and Manure Incorporation — Part I: Reduction of Cover. " This article discusses some of the influence that injec-tor/applicator spacing, tire spacing, field speed and several other factors can have on residue cover reduction. Much of this information is based on (Continued on next page) field observations which may help swine producers in the selection and operation of manure incorporation components , especially when trying to maximize the residue cover that remains for erosion control.