Fish soluble nutrients (FSN) applied at weekly or biweekly intervals gave comparable growth and fruit yield of greenhouse-grown tomatoes ( Lycopersicon esculentwn mill.) as plants fertilized with full strength Hoagland’s nutrient solution. FSN fertilization stimulated vegetative growth and delayed flowering and fruit-ripening by 5-8 days depending upon concentration and frequency of application. FSN can be a useful nutrient source for crop fertilization.
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Aung et al. (1980) studied this question.