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Shenzhen
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Shenzhen
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Chelated Copper Fertilizer

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Chelated Copper Fertilizer

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Potassium Phosphite Cu

Shenzhen

Potassium Phosphite + Chelated Copper Fertilizer

The Shenzhen Potassium Phosphite fertilizer, enriched with phosphite ions and EDTA-chelated copper, offers a powerful solution for controlling some of the most significant fungal and bacterial plant diseases, such as downy mildew, root and crown rot in crops, fire blight in apples and pears, and gummosis in citrus, pistachios, and apple trees. This fertilizer not only enhances plant resistance to various diseases but also provides essential nutrients, acting as a dual-purpose “fertilizer-pesticide” product. It effectively addresses deficiencies in phosphorus, potassium, and copper, promoting overall plant health and vigor.

Composition

Phosphite: 30% (w/w)
Water-Soluble Potassium: 20% (w/w)
EDTA-Chelated Copper: 0.4% (w/w)

Role of Phosphite in Plants

Phosphite ions serve as precursors to the synthesis of phytoalexins, natural compounds produced in small quantities by plants that play a critical role in inducing and enhancing disease resistance. By activating the plant’s defense mechanisms, phosphite helps plants recover more quickly from diseases and environmental stresses, such as salinity and drought. This leads to improved resilience and faster recovery, ensuring plants remain productive even under challenging conditions. Additionally, phosphite supports nutrient uptake and strengthens the plant’s ability to withstand biotic and abiotic stresses.

Role of Copper in Plants

The EDTA-chelated copper in this fertilizer activates key enzymes and catalysts involved in various plant growth processes. Copper is essential for the production of vitamin A, which is critical for plant development, and aids in protein synthesis. As a micronutrient, copper is required in small amounts but plays a significant role in activating enzymes involved in lignin synthesis, which strengthens plant cell walls. It is also vital for plant respiration and several enzymatic systems. Furthermore, copper enhances the flavor and color of vegetables and improves the vibrancy of flower pigmentation, contributing to both aesthetic and commercial value.

Key Benefits and Features

Enhanced Disease Resistance: The phosphite ions boost plant immunity, providing effective protection against fungal diseases such as downy mildew, root rot, and crown rot, as well as bacterial diseases like fire blight in apples and pears.
Disease Management: This fertilizer actively combats fungal and bacterial infections, including gummosis in citrus, pistachios, and apple trees, reducing crop losses and improving plant recovery.
Improved Fruit Quality: The high potassium content enhances fruit quality, promoting better taste, texture, and marketability.
Early Maturity and Coloration: Potassium accelerates fruit ripening and enhances coloration, leading to earlier harvests and visually appealing produce.
Increased Flower and Fruit Set: The phosphorus component supports flower and fruit development, ensuring higher yields by meeting the plant’s phosphorus requirements.
Nutrient Deficiency Correction: This product effectively addresses deficiencies in phosphorus, potassium, and copper, ensuring balanced nutrition for optimal plant growth.
Stress Mitigation: The combination of phosphite and copper strengthens plants against environmental stresses, such as drought, salinity, and pest pressures, promoting long-term resilience.

Application Guidelines

Vegetables and Field Crops (Foliar Application): 1-2 kg per hectare.
Fruit Trees (Foliar Application): 2-3 liters per 1,000 liters of water. For best results, apply during the early stages of plant growth or at the onset of disease symptoms. Always conduct a compatibility test when mixing with other agrochemicals and follow local agricultural guidelines for application timing and rates.

Practical Considerations

This fertilizer is ideal for integrated pest management (IPM) programs due to its dual role as a nutrient source and a disease-control agent. Regular application can enhance crop productivity while reducing reliance on chemical pesticides, promoting sustainable farming practices. For optimal efficacy, soil and tissue tests are recommended to tailor application rates to specific crop needs and environmental conditions. Consult with local agronomists to integrate this product into your crop management plan effectively.

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