Just a quick reminder about liquid fertilizers sitting out in planters or tenders. With the cold temperatures, we could see some crystallization of some of the liquid fertilizer products. Nucleus O-Phos, the 100% orthophosphate fertilizer from Helena, for example, will start to form crystals at temperatures above freezing, like 38°F. Nucleus HP is a little lower at 28°F. Both products should not have an issue going back when lines warm up this morning, especially with just a little agitation. 10-34-0 has a much lower salt out temp. Other fertilizer blends will crystallize at varying temperature ranges. Always check your smaller lines after a hard morning freeze. Also, check things like the metering disks in Redball flow gauge units or any in-line strainers.
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Crystallization of liquid fertilizers
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Director of Agronomy Technical Services