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Fertilizer Recommendations Guide, Jim Gerwig, Ron Gelderman
Fertilizer Recommendations Guide, Jim Gerwig, Ron Gelderman
SDSU Extension Circulars
South Dakota State University Soil Testing Lab fertilizer recommendations are based on field research in South Dakota and neighboring states. However, information from outside this region is used where only limited local data was available. The tables were developed as part of continuing cooperation between these states to standardize recommendations across the three-state area. The recommendations in the tables are generated by equations and, therefore, change consistently across yield goals and soil test levels. Due to space limitations, only the recommendations for selected yield goals and the soil test level at the center of each soil test range (very low, …