Copper sulfate is not only a fertilizer, but also a widely used fungicide.

Copper sulfate is not only a fertilizer, but also a widely used fungicide. Copper  sulfate is often used as a fungicide and fertilizer in horticulture and agriculture. When used at an appropriate concentration, copper sulfate can prevent plants from being damaged by mold and fungi. Plants growing in copper deficient soils can also benefit from the application of copper sulfate based fertilizers. Copper sulfate fertilizers and sprays are commonly used to correct copper deficient soils. If the quantity is used correctly, copper sulfate can prevent various problems. Problems related to copper deficiency include reduced disease resistance, wilting, reduced seed and fruit yield and non flowering. When young plants grow in copper deficient soil, they will show signs of yellowing, deformation and even death. When combined with conventional soil testing, copper sulfate can prevent these problems. Copper  sulfate is a common component of many garden fungicides. These products are usually mixed with water and other chemical hydrated lime or soda ash. Spraying on plants can effectively resist fungal infection. Excessive application of copper sulfate  in one place will have a long-term negative impact on plant growth. One of the adverse effects includes leaf discoloration, characterized by the whitening of dark green leaves and the yellowing of iron. Excessive use of copper  sulfate can also cause damage to rhizomes, characterized by short, thick and forked roots. Rhizome damage will further cause overall wilting, plant growth reduction or death.

What are the functions of copper sulfate in agriculture？

1. Prevention and control of fruit tree diseases: Copper sulfate aqueous solution has strong bactericidal effect and can be used to kill fungi. Mixed with lime water to produce Bordeaux liquid, which is used to control fungi on lemon, grape, apple and other crops.

2. In agriculture, copper sulfate solution is mostly used for malt, potato, rice and other diseases, with good effect, but it has poor effect on rust and powdery mildew.

3.Copper sulfate   solution can also be used for algae removal in rice fields and ponds.

4.Copper sulfate is also a trace element fertilizer, which can improve the stability of chlorophyll. Crops sensitive to copper are cereal crops, such as wheat, barley and oats, which are mainly used for seed treatment and topdressing outside the root.