Browsing by Subject "Soil fertility- Minnesota"

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    Soil fertility and conservation:A Minnesota Program
    (University of Minnesota, Agricultural Extension Service, 1947-03) Burson, Paul M.; Rost, C.O.; Duncan, E.R.
    Contains: 1. Drainage, land clearing and cultivation. 2. Liming acid soils. 3. Good crop rotations. 4. Conserving organic matter. 5. Adding commercial fertilizer. 6. Practicing erosion control,.