Transcription of Nutrient Management Suggestions for Corn
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EC117. April 2019. Nutrient Management Suggestions for corn Charles A. Shapiro, Emeritus Professor of Agronomy and Horticulture;. Richard B. Ferguson, Charles S. Wortmann, and Bijesh Maharjan, Extension Soils Specialists; Brian Krienke, Extension Soils Educator Fertilizer Nutrient requirements for corn are based on ex- will provide the most accurate recommendations, but a min- pected yield and soil Nutrient availability. The preplant nitrogen imum sample depth of 2 ft is acceptable. To determine P, po- (N) recommendation equation, with adjustment for fertilizer tassium (K) and micronutrient needs, and soil organic matter cost and time of application, is retained from the previous content, collect soil samples from a depth of 0 to 8 inches edition of this publication. Suggestions for in- season nitrogen every three to five years in the fall (http://extensionpubs.)
Nitrogen Requirement Our recommendations for fertilizer N are based on ex-pected yield, the amount of residual soil nitrate-N (NO 3-N), soil organic matter, other N sources, timing of application, and price of fertilizer. This remains an option and is useful in planning and financial budgeting. Alternative N manage-
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