This article summarizes results of ongoing research on soil sampling methods and variable-rate technology (VRT), and on the use of precision agriculture technologies for on-farm strip trials. The research emphasizes the management of phosphorus (P), potassium (K), lime, and starters.
Iowa State University
Mallarino, Antonio P., "Effective use of precision agriculture for improved management of phosphorus, potassium, and lime" (1999). Integrated Crop Management News. 2185.
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