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.