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Learn more about these two essential plant macronutrients. Soil behavior, fertilizer tips, and soil and tissue testing.
Covers Potassium soil states, reactions and mobility.
Application forms, timing and methods for potassium fertilizer.
Corn & soybean sampling, test interpretation and fertilizer timing.
Phosphorous forms, reactions mobility and availability in soil.
Phosphorous forms, environmental considerations and application preparation.
Research on corn yield response to P & K applications.