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Interpretive Summaries:
1997 - Agronomic Aspects of Coated Potassium Chloride Fertilizers
1996 - Agronomic Aspects of Coated Potassium Chloride Fertilizers
Agronomic Aspects of Coated Potassium Chloride Fertilizers, 1997
University of Alberta researchers have been studying coating of K fertilizers with different polymers. High rates of seed-placed KCl can restrict seed germination and seedling growth of small grains and oilseeds, but coating the KCl with a polymer appears to alleviate its potential harmful effects, especially with canola. Polymer coated KCl was also found to increase K availability and uptake in barley. Urea has been successfully coated to control N release in turf, rice and horticulture crops. This study has shown the potential is there for coated KCl. If an inexpensive coating were available, this could be important in one pass direct-seeding and fertilizer systems where farmers want to apply all their fertilizer requirements with the seed. AB-16
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