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| I will preface this by stating that I sell only liquid fertilzer. The only advantages that I can see with liquid is even application, consolidating passes, and in the case of starter, easier handling. A pound of "P" is a pound of "P". That's it. Dry's advantage is less freight. Dry urea is difficult to get a good spread (with a spinner) because it is so light.
Dry fert will react with the soil in much the same way as liquid. Liquid urea may have a slight advantage if applied to bare soil as it will quickly hydrolize into ammonium which is stable.
The bottom line is plants cannot tell the difference between dry and liquid, nor do they care.
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