Copper sulfate applications in various industries
Agriculture:
• Use as a fungicide (such as Brodofix) to prevent and control plant diseases
• Supplying the copper element needed by plants in the composition of agricultural fertilizers
• Use as an anti-algae to control algae growth in ponds and stagnant waters
Comprehensive Guide to the Use of Copper Sulfate and Copper Compounds (Bordofix and its Derivatives) in Agricultural Products
What is Copper Sulfate?
Copper sulfate or blue cut is a widely used chemical compound from the family of copper compounds that is made of copper, sulfur, and oxygen and exists in the form of blue crystals (pentahydrate) or white crystals (anhydrous). Due to its copper element and antibacterial, antifungal, and anti-algae properties, this substance plays an important role in plant nutrition and controlling some pests and diseases.
Copper compounds such as copper sulfate, Bordofix (Bordofix solution), copper oxychloride, copper hydroxide, and cuprooxide are among the most important materials used in agriculture. These compounds play an effective role in providing copper micronutrients, preventing fungal and bacterial diseases, and increasing plant resistance.
The main use of these substances is preventive and is mostly used to prevent the spread of pathogens, not as a definitive treatment for diseases.
Brodofix is a combination of copper sulfate and lime that, while disinfecting the plant surface, reduces the burning properties of copper sulfate. In addition to being safer for the plant, this solution has found wider application in agriculture than other copper compounds due to its economic efficiency and appropriate efficiency.
Benefits of copper sulfate for plants
• Helps plant growth and development
• Increases chlorophyll production and leaf greenness
• Improves product quality and quantity
• Strengthens the plant’s immune system
• Helps photosynthesis, respiration, and nitrogen metabolism
• Adjusts the pH of alkaline soils due to its mild acidity
Symptoms of copper deficiency in plants
• Poor growth and elongation of stems
• Twisting of leaves
• Brown or gray spots on leaves
• Whitening of leaves
• Root rot
• Premature leaf and fruit drop
• Bad shape and discoloration of fruits
Products with high consumption of copper compounds
Fruit trees
Citrus, apples, pears, stone fruits (peach, lemon, etc.) Cherries and sour cherries, kiwis, grapes
Tomatoes, potatoes, peppers, cucumbers
Methods of providing copper with copper sulfate
1. Foliar spraying
A dilute solution of copper sulfate is sprayed directly on the leaves.
2. Drip irrigation
Injection of copper sulfate through the water used to irrigate the plants.
3. Fertilizer application
Adding a small amount of copper sulfate around the roots and mixing with the soil.
Methods of using copper sulfate
Soil application
Between 1 and 15 kg per 1000 square meters depending on the type of soil and crop.
Spread evenly and then mix with the soil.
Solution application
40 grams of copper sulfate in 8 liters of water for root irrigation or foliar spraying.
Seed treatment
50 grams of copper sulfate in 1 liter of water, soak the seeds for 30 minutes, then wash and sow.
Copper sulfate applications in agriculture
1. As a fertilizer
To correct copper deficiency and enhance plant vital processes.
Methods:
• Foliar spray at a concentration of 0.1 to 0.5%
• Soil application (1 to 50 kg/ha)
• Mixing with NPK fertilizers
• Use in the fertilizer pit around the root
Suitable time of application: When planting, early stages of growth or autumn and spring for trees.
2. As a fungicide and bactericide
Control of diseases such as:
• Leaf spot
• Powdery mildew
• Fruit rot
• Bacterial canker
• Leaf margin spot
As a foliar spray or soil application, usually before flowering.
3. As a herbicide (in high concentrations)
Control of broadleaf weeds such as:
sorrel, sedge, clover, wild asparagus, horsetail, buttercup and weedy forages.
Mechanism of action:
Inactivation of enzymes and disruption of photosynthesis and respiration, which ultimately causes the death of the weed.
General principles for using copper compounds
• Do not spray on fruits.
• Do not use at temperatures above 28–30 degrees.
• Do not use during flowering.
• Do not use on thirsty plants.
• Do not apply near harvest.
• Excessive use causes leaf and fruit burns.
Safety and environmental tips
• Copper sulfate is toxic to humans and animals.
• The use of gloves, masks, and protective glasses is mandatory.
• Avoid contact with skin and eyes.
• If swallowed, seek medical attention immediately.
• Do not use near drinking water sources.
• Copper can accumulate in the soil; soil testing is recommended.
• Avoid continuous and unplanned use.
• Check compatibility before mixing with other pesticides.
• Do not spray in hot and humid weather, strong winds, or rainfall.
