زغال اکتیو تعاونی پترو تمدن مهام پارس
Activated Carbon
October 26, 2020
کود مایع can
Introduction Liquid Calcium ammonium nitrate fertilizer, often abbreviated as CAN. This Fertilizer is a combination (Mixed) It is about 20% -30% calcium (CaCO3) and 70% -80% ammonium nitrate (NH4NO3) and is an excellent source of nitrogen and calcium needed by plants. The high concentration of nitrogen as well as the presence of nitrogen in the two forms of ammonium-nitrate in this fertilizer causes rapid absorption and nutrition of plants with nitrogen.
Advantages of using CAN fertilizer
1. This fertilizer contains calcium and ammonium, nitrate, which are very useful elements for the plant and are easily absorbed by the plant.
2. CAN fertilizer increases the level of plant resistance to pests, diseases and heat
3. CAN fertilizer stimulates rooting in plants
4. CAN fertilizer increases the growth of plant tissues
5. Calcium is very important for product quality and promotes the growth of healthy cells in fruits, roots and tubers.
6. Calcium deficiency problems such as; Worms and crushed ends of bell peppers and tomatoes, sunburn lettuce tip, stains on apples and potatoes inside.
7. Increases the weight and quality of products, especially products that have onions, roots and tubers.
8. It is very suitable for fruit trees and all kinds of vegetables, crops, ornamental flowers and grass.
9. It accustoms the plant to dehydration.
10. Improves water penetration, allows nitrogen to be easily transferred to the root zone.
11. Increases storage properties as well as strengthens the outer surface of the product.
12. The plant will be very resistant to transport.
13. It does not change the amount of salt in the soil
14. It does not make the soil alkaline.
15. Suitable for all soils and hydroponic
Is CAN fertilizer suitable for Iranian soils?
Most of the soils of Iran, except for a few areas in northern Iran, are relatively alkaline in other areas. Calcium ammonium nitrate (CAN) fertilizer with pH = 5 has acidic properties and is the best fertilizer for soil conditions in Iran (alkaline soils). Of course, it may be better to say that alkaline soils have a high pH, which with the use of CAN fertilizer, the pH of the soil decreases to some extent and the uptake of elements by the plant increases. As a result, in other words, the main effect of CAN fertilizer with pH = 5 in alkaline soils is to lower the soil pH, which has a significant effect on the absorption of other elements, especially Micro elements.
Other nitrogen fertilizers such as urea in alkaline and calcareous soils may cause problems and further increase soil alkalinity and reaction as well as soil salinity poisoning, while CAN fertilizer is more suitable for alkaline soils. Due to the low pH of this fertilizer, it can improve soil structure, increase soil grain structure and reduce soil compaction, thus preventing soil from being pelleted. In addition to the element's nitrogen and calcium, other substances in this fertilizer regenerate soils.
What products is CAN fertilizer suitable for?
CAN fertilizer can contain nitrogen and calcium to feed different types of crops in the field and greenhouse according to the need for plant nutrition and soil testing.
These products include the following:
• Fruits (apples, grapes, pomegranates, citrus fruits, mangoes, strawberries)
• Cereals and fibers (wheat, corn, rice, cotton, sugarcane, sunflower)
• Tubular products (onion, potato, sugar beet)
• Vegetables (tomatoes, bell peppers and a variety of vegetables)
• Beans
• Ornamental flowers (carnation, marigold, rose, gerbera)
What is the recommended amount of CAN fertilizer for different products?
The recommended amount of CAN fertilizer is different for different crops. It is better to test the soil first, because excess calcium can also cause problems in plants.
Methods of using CAN fertilizer in the field
• Surface application of fertilizer: application of fertilizer directly on the soil surface and its penetration into the soil
• Irrigation fertilizer: application of fertilizer in irrigation systems (drip, sprinkler, plot) and fertilizer supply to the product along with irrigation water
• Injection of fertilizer into the soil: Application of fertilizer by injection method in the soil with the aim of optimal absorption of nitrogen and calcium by plant roots
• Foliar application: Fertilizer spray in appropriate concentration with special nozzles on plant foliage
Does foliar application of CAN fertilizer lead to leaf burning of crops?
The severity of plant leaf burns through foliar application depends on the type of fertilizer used and the dose used. Most of the symptoms and leaf burns in foliar application are due to the high concentration of fertilizer and also the acidity (low pH) of the fertilizer solution. The acidity of the fertilizer solution (low pH) greatly increases the amount of uptake of some fertilizer elements and substances.
• The pH of the solution to be consumed should be neutral and between (6.8-5.5).
• The most suitable pH of water for foliar application is range 6.
• The highest calcium uptake is at pH = 7.

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