County Ag News

Fall Pasture Fertilization


Unlike fertilization of most field crops, where the decision as to the amount and type of fertilizer to apply is largely driven by trying to achieve optimum production, pasture fertilization should be more controlled by careful consideration of the individual goals for the pasture. 

Factors to consider include:

1) Production needed for the animals

2) Time of forage needs

3) Species present 

4) Expected methods of management

The need for lime on Wisconsin pastures can be considerable, especially on some central and northern soils derived from acidic parent materials. Long-term repeated nitrogen fertilizer applications can also significantly acidify the surface layer of pasture soils. The lime need of pastures is largely determined by the species present (presence and specific type of legume) and the grower’s desire to maintain the legume-grass mix.

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