Joel DeJong is the Iowa State University Extension field agronomist for northwest Iowa. He works with farmers on integrated management of pest populations, crop management, and nutrient and manure management. DeJong also trains company agronomists on research-based crop production practices, and teaches certified crop advisers on production, nutrient and pest management issues.
Corn Source: Whether or not to replant a disappointing stand is determined by which decision will likely provide more net income.
Corn Source: Soil tests and fertilizer recommendations should focus on maximizing your return on investment.