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Revised Alfalfa Fertilizer Recommendations For A Changing Environment Greatly Improves Profitability, Brian Lang, John E. Sawyer, Daniel Barker, Ken Pecinovsky
Revised Alfalfa Fertilizer Recommendations For A Changing Environment Greatly Improves Profitability, Brian Lang, John E. Sawyer, Daniel Barker, Ken Pecinovsky
John E. Sawyer
During the last decade, an ever-increasing percentage of alfalfa fields in northeast Iowa have been exhibiting signs of reduced growth and vigor, resulting in declining profitability. Iowa State University Extension in northeast Iowa initiated an investigation into this problem. Sixteen research trials conducted in northeast Iowa over the next 6 years as both on-farm trials and at the northeast ISU research farm uncovered widespread sulfur deficiency problems in alfalfa production. Over 90 ISU Extension educational meetings in northeast Iowa, and extensive use of the media, communicated this issue and tools to address it to farmers and agricultural providers. Survey results …
Dealing With Sulfur Deficiency In Northeast Iowa Alfalfa Production, Brian J. Lang, John E. Sawyer, Stephen K. Barnhart
Dealing With Sulfur Deficiency In Northeast Iowa Alfalfa Production, Brian J. Lang, John E. Sawyer, Stephen K. Barnhart
John E. Sawyer
Sulfur deficiencies have been shown to be associated with reduced alfalfa production. This paper documents this problem in NE IA, presenting research over the past 2 years, and provides recommendations for plant analysis as well as appropriate sulfur supplementation strategies.