Role of Copper in Tomato Production
Copper and yield
Basal applications of copper sulfate to deficient soils increase plant growth and resultant yield, as shown in trial in India.
Copper and quality
Trial in India also shows that crop quality was improved by stimulating good growth through a balanced nutrition with copper.
Copper and ascorbic acid content
Ascorbic acid content is also increased when copper sulfate is applied.
General guidelines for copper application
Reports of copper deficiencies are rare in greenhouses. In field cultivation, they are most likely on sandy or organic soils. Basal applications of copper sulfate to deficient soils increase yield and quality of tomato crops.