Frequently Asked Questions

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Answers to common questions about products, applications, plant nutrition and technical support.

How do I choose the right product?

Product selection depends on crop type, growth stage, soil conditions and nutritional objectives. You may also refer to our nutrition programs or contact our technical team.

What is the difference between macronutrients and micronutrients?

Macronutrients such as nitrogen, phosphorus and potassium are required in larger amounts, while micronutrients are needed in smaller quantities but remain essential for plant growth and development.

What is the difference between liquid and water-soluble products?

The main difference is product form and nutrient concentration. Both can be effective when used according to recommendations.

What is the difference between Sepehr Parmis iron products?

Iron products may differ in formulation, nutrient composition and intended application. Product selection depends on crop conditions and nutritional requirements.

What is the difference between foliar application and fertigation?

Foliar application delivers nutrients through leaves, while fertigation supplies nutrients through the root zone via irrigation systems.

How often should fertilizers be applied?

Application frequency depends on crop type, growth stage, soil conditions and the selected product.

Can higher application rates improve results?

No. Excessive application may reduce nutrient balance and potentially affect plant performance.

How are application rates determined?

Recommended rates are based on crop type, application method and growing conditions. Always follow product instructions.

Are all products suitable for both foliar application and fertigation?

No. Application methods vary by product. Please refer to product recommendations before use.

Can fertilizers be mixed with other products?

Compatibility should always be verified before mixing. A small-scale compatibility test is recommended before large-scale use.

How can nutrient deficiencies be identified?

Nutrient deficiency symptoms may resemble diseases or environmental stress. Plant observation and, when possible, soil or tissue analysis can help improve diagnosis.

How can I contact your sales or technical team?

Contact information is available on the Contact Us page.

Do you offer business partnerships or distribution opportunities?

Please contact our sales department for information regarding cooperation and distribution opportunities.