Integrated Phosphorus Placement and Form to Improve Wheat Grain Yield

The bioavailability of phosphorus (P) is generally low in soils due to continuous P fixation or sorption by soil components. In low-P soils, crop contact with P fertilizer may be limited by fertilizer placement that is too distant from the roots. Thus, researchers at the Chinese Academy of Sciences hypothesized that applying a P form with higher mobility would achieve greater crop yields compared with P forms with lower mobility at distant P placement.