Conservation Training

Soil Testing and Nutrient Removal Trends

September 23, 2021

11:00 am – 12:00 pm
Location: Online

An inventory of soil-test levels across North America is published by The Fertilizer Institute (formerly the International Plant Nutrition Institute) every five years, and a new inventory is due out this year from data collected in 2020. The inventory of soil-test levels, nutrient removals, and nutrient balances is useful for evaluating trends over time and alerting managers and crop advisers on emerging issues. From the inventory, it is clear that various areas across North America exhibit a majority of samples testing below optimum for phosphorus and potassium. This presentation will examine trends over the past couple decades and discuss what those trends might indicate for nutrient management.