FISH HYDROLYSATE FERTILIZER: ITS POTENTIAL ROLE IN COMMERCIAL CRANBERRY PRODUCTION

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  • 1 University of Massachusetts Cranberry Experiment Station, East Wareham, MA 02538

Productivity in cranberry plots receiving either fish hydrolysate fertilizer or inorganic soluble fertilizer at the same dose has been studied for the past three seasons. In the past two seasons, fish hydrolysate fertilizer (produced from cod frames and stabilized with phosphoric acid) has been used experimentally on a commercial scale. Both series of experiments lead to the conclusion that fish hydrolysate is an acceptable alternative to soluble fertilizer for cranberries. In fact, fish hydrolysate will be included in the University fertilizer guidelines for cranberries to be issued in the spring of 1990. The evidence will be presented along with the arguments in favor of the use of this organic-type material. Continuing lines of research which may lead to increased grower acceptance will be outlined.

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