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Soil Sampling Strategies for Site-Specific Field Management

By: Rob Austin, Luke Gatiboni, John Havlin SoilFacts

This factsheet for farmers describes concepts, terminology, and guidelines concerning soil sampling. Proper testing allows farmers to apply the correct amount of lime and fertilizer to fields.

How Rising Fertilizer Prices Affect Optimum Nitrogen Rates

By: John Havlin, Geoff Benson SoilFacts

This publication helps farmers decide whether to reduce fertilization rates in order to achieve maximum profits due to increases in nitrogen fertilizer prices.