1. Crop and Soil Response to Different Phosphorus Management Approaches

Phosphorus (P) management has implications for crop production and water quality issues in Ohio. Recent data from 457 field P trials conducted in Ohio reported less than 25% positive yield response to P fertilization. It warrants further evaluation of crop P uptake, soil P levels and environmental factors to improve the predictability of crop yield response. Therefore, we collected soil and plant data from three P fertilizer trials (Wooster, South Charleston, and Custar) established in 2006. These... M. Rakkar, L. Fleuridor, S. Culman, G. Labarge