 | | | |
|---|
 | nutrient removal |
| |
|
| |
| oats |
| |
|
| |
| oilseeds |
| |
|
| |
| Australia & New Zealand |
| |
|
| |
| East Zone India |
| |
| Eastern Canada & Northeast U.S. |
| |
 | Great Plains U.S. |
| |
| CO-09F | Phosphorus Soil Test Calibration Using Landscape Spatial Variability | |
| CO-11F | Long-term Phosphorus Fertilization of No-till Dryland Intensive Cropping Systems | |
| KS-27F | Precision Application of Phosphorus to Winter Wheat | |
| KS-33F | Maximizing Irrigated Crop Yields in the Great Plains | |
| KS-35F | Effect of N and P Starters on Yield, Yield Components, and Nutrient Uptake of Short-Season Corn Grown in Conservation Tillage Systems | |
| OK-05F | Field Element Size of Soil Phosphorous and Potassium in Continuous Production Systems | |
| OK-07F | Will Altered Levels of N-P-K Affect the Potassium and Lycopene Content of Watermelon | |
| TX-35F | Effects of Nitrogen and Phosphorus Application Levels on Dry Matter Yield and on Forage Quality Characteristics of Annual Ryegrass Grown on a Knippa Clay Site in Uvalde County, Texas | |
| TX-37F | Comparison of Alternative Indices for Determination of Soil Test Phosphorus in Texas | |
| TX-40F | Response of Cotton to Phosphorous Applied in Irrigation Water on the Texas High Plains | |
| TX-43F | Variable Rate Phosphorus Fertilization of Cotton in the Southern High Plains | |
| TX-44F | Grain and Grazing Responses to Phosphorus Placement in Wheat Pasture in the Texas Rolling Plains | |
| TX-48F | Accurate Fertilizer-P Rates for Ryegrass Calibrated for Different Soil-P Extractants | |
| TX-53 | Evaluation of KMag and KMag + P Compared to Muriate of Potash for Production of Tifton 85 Bermudagrass on Coastal Plain Soils | |
| North and West Zone India |
| |
| Northcentral China |
| |
|
| |
| Northeast India & Bangladesh |
| |
|
| |
