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Nutrient ROI Calculator

Calculate your yield and return.

Growing Degree Days Calculator

Calculate heat exposure in your area.

Nutrient Removal Calculator

Calculate nutrient removal form soil.

Rainfall Tracker

Calculate rain total in your region.

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American Society of Agronomy Course Offerings

Current ASA Courses

Log in to the ASA website to view courses.

Farmer agronomist standing in green field, holding corn leaf.

Earn a CEU Credit

Precision Nutrition for Modern Corn: Optimizing N × S to Capture High-Yield Gains

Fertilizer price rises. Commodity chart on a trading screen.

Earn a CEU Credit

Science-Based Nutrient Management in Times of High Fertilizer Prices

A close up of a volatile stock market graph.

Earn a CEU Credit

Global Agricultural Market Insights for 2023

The fertile loamy soil for planting with the iconic technology in soil is the essential food of plants.

Earn a CEU Credit

Management Strategies to Improve Phosphate and Potassium Fertilizer Use Efficiency

Soil meter for measured PH, temperature and moisture at field.

Earn a CEU Credit

Soil pH: Causes, Effects, and Management

Sulphur stones isolated

Earn a CEU Credit

Sulfur: The Other Essential Soil Nutrient

Soy field in early morning.

Earn a CEU Credit

Do High-yielding Soybeans Need Supplemental Nitrogen?

How to Use Soil Sampling to Improve Nutrient Levels and Crop Yield

Earn a CEU Credit

Soil Testing and Nutrient Removal Trends

Farmer agronomist standing in green field, holding corn leaf.

Earn a CEU Credit

Evaluation of Different Sulfur Sources for Corn and Soybeans

The soil is rich in minerals and various nutrients for cultivation.

Earn a CEU Credit

Role of Cation Exchange in Nutrient Management

a field of green crops beneath a setting sun

Earn a CEU Credit

Policy and Science – Our Current Nitrogen Landscape

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