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Preventing Nutrient Tie-Up With Effective Phosphorus Management

CEU Credits: 1 |
Nutrient Management
Published 09/06/2019
| Course Duration: 33:01

How much phosphate fertilizer is used in the U.S. each year? According to USDA’s 2016 estimates, about 9.4 billion pounds of phosphate is applied on an annual basis in production agriculture. Research also shows that even under the best soil conditions, only about 20% of the phosphorus applied is available for plant uptake.

After successful completion of this course, you will be able to share with customers:

  • The different phosphorus forms and how phosphorus becomes bound in the soil
  • The tools and technologies to help manage phosphorus availability in the soil
  • How chelation works and why the ortho-ortho EDDHA chelate is recommended for long-term nutrient chelation
  • What a phosphatase enzyme is and how it helps free phosphorus from organic matter in the soil
  • The value of micronutrients, like Zinc and Boron on plant growth and development


Steve Carlsen

Steve Carlsen

CHS Agronomy, Levesol and Crop Enhancement Manager
Steve Carlsen serves as the Levesol and Crop Enhancement Manager for CHS Agronomy and focuses on the areas of crop nutrients, adjuvants, and crop protection products. Previously, he worked with the North Dakota State University (NDSU) Plant Pathology and the USDA with an emphasis on small grains research and barley diseases. Steve received his bachelor’s degree from NDSU in crop and weed science and did his graduate work with the NDSU plant pathology department. His expertise include general agronomy, plant pathology, crop nutrition and crop protection products.
Ryan Hageman

Ryan Hageman

CHS Agronomy, Regional Technical Specialist

Ryan Hageman is currently a Technical Specialist Manager with CHS Agronomy.  He services the states of South Dakota and SW Minnesota and manages a team that provides technical expertise to the western half of the US.  In Ryan’s 25 years of experience in the agricultural field, he has been with West Central and now CHS Agronomy for 12 years, first as an Account Manager, Technical Specialist, and currently a Technical Specialist Manager. Previously, Ryan utilized his Ag Business Degree as a District Sales Manager for Mustang Seeds for 2 ½ Years and an Agronomy Manager with Lake Preston Cooperative for 8 years. 

James Rose

James Rose

CHS Agronomy, Technical Specialist

James Rose is part of the CHS Agronomy Product Development Department and is focused on product research and customer support. James’s position as technical specialist for Eastern Oklahoma, Arkansas, and Western Tennessee largely focuses on adjuvant research and crop protection. James comes from the University of Arkansas where he obtained a bachelor’s degree in Environmental, Soil, and Water Science. He is completing a Masters degree in Weed Science where research was centered around new 2,4-D and dicamba crop technologies.

Expertise: General agronomy, weed science, dicamba, 2,4-D, soil fertility, and soil science