Phosphorus fertilization and enhanced efficiency products effects on sugarbeet

A major cash crop in the Bighorn Basin of Wyoming (WY) and Yellowstone River valley eastern Montana (MT) is Sugarbeet (Beta vulgaris L.). This growing area characterized by alkaline/calcareous soil conditions that inhibit phosphorus (P) availability. Phosphorus, however, reported to increase root growth sugarbeet. study evaluated effects two P fertilizer sources rates on sugarbeet productivity Sidney, MT Powell, WY. The were liquid ammonium polyphosphate (APP) dry monoammonium phosphate (MAP) applied with or without a availability enhancer (Avail®). fifth treatment consisting APP + Avail® starter was tested. banded at 5 cm beside below seeds, seed-placed MAP broadcast-incorporated 5-cm depth. Five application (0, 34, 67, 134, 201 kg P2O5 ha−1) tested Montana, seven 201, 269, 336 Wyoming. Results showed significant products quality. increased plant stands Wyoming, which due lower temperature (3–6 °C) condition planting. yield when WY, but had no applied. There benefit from MT, regardless source. Phosphorus sugar yields both locations. relationship between rate linearly positive failed reach plateau, despite high this study. Such are not recommended because economic environmental cost associated such rates.