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NW TX Panhandle | 2x2 is best up to a point. If your levels are very low, after a few seasons you will be able to see a difference in plant size where the plants cross over old 2x2 rows. Ex: some plants will have only this years 2x2 to utilize, whereas other plants will have both this years 2x2 to utilize & leftover 2x2 from the previous years(s). At some point, these P dead areas need to get built up. Otherwise, the longer you go with just a 2x2, you will see ore variation in plant sizes due to varying amounts of P available. Also, whenever possible, add N with a P application (keep in mind your salt index for your fertilizer mix to prevent fertilizer burn of the roots). The addition of N does 2 things: 1st, the N will lower the Ph of the blend which will make the P more available to the pants in high Ph soils (cheap chelation). 2nd, the addition of N does provide some movement of P to occur. If your not familiar with this, search - Kansas State University, Dr. Barney Gordon, Movement of P in soils. He has proven that mixing N with P fertilizers improves movement of P into the root zone. In the Western regions, a lot of 2x2 applications were converted to banding fertilizer, on top of the row, behind the plater. This has been proven for years now on thousands of corn acres. Good Luck | |
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Broadcast vs 2x2 Phosphorus-Efficiency
