The numbers indicate the amount or percentage of macro elements nitrogen, phosphate, potassium, magnesium and calcium or micro elements iron, zinc, manganese, copper, boron and molybdenum in the fertilizer.
Regarding macro fertilizers, generally, the numbers on the packaging of 10 kg bags and more represent three nutrients (nitrogen, phosphorus and potash) . The first number refers to the amount of nitrogen, the second number refers to the amount of phosphate, and the third number refers to the amount of potassium. For example, 10-6-4 contains 10% nitrogen, 6% phosphate and 4% potassium.
In some fertilizers, apart from NPK, the word TE is also added to it, which means trace element or having rare elements or micronutrients.

Deciding which fertilizer to use can be a bit confusing. But it is better to say that all nutrients are necessary for all plants. This choice depends on the type of soil, the condition of your plant and your past nutrition. You can see the fertilizer recommendations for your product (in the fertilizer recommendation part on website) and see the fertilizers that should be used.
It is also important to pay attention to the time and method of use in addition to the choice of fertilizer.

Some farmers are interested in liquid or powder fertilizer based on the culture of different regions. This issue goes back to the experiences and weather conditions of each region. But in general, the difference between powdered (solid) and liquid fertilizers is based on the amount of elements in it. So that the amount of each type of fertilizer is different. For example, if foliar application of powdered magnesium chelate fertilizer is considered 1 kg per 600 liters of water, then 2-3 liters per 600 liters of water should be used for liquid magnesium foliar application.

The frequency of fertilization depends on factors such as the type of fertilizer, the type of plant, soil and watering conditions, and other factors. But there are times in plant nutrition that are important and they should receive a specific type and amount of fertilizer. These times and types of fertilizers can be seen in the fertilizer recommendations on this site.
An important parameter in the repetition of fertilization is the observation of the respectable gardener or farmer on the process of changes. For example, if a suitable fertilizer is used to eliminate the elemental deficiency and the deficiency is still observed after 10 days, the opinion of experts may be to repeat fertilization.
In general, it should be said that various parameters are effective in this regard. But paying attention to plant changes, past and present nutrition, soil analysis and plant conditions together makes it possible to make the right decision regarding the amount of fertilization.

Any type of fertilizer must be used by the plant at certain times and in a certain amount. The belief that consuming more will lead to better results is not true in all cases. For example, in a land or an area that is facing a severe shortage of nutrients, if the amount of consumption is somewhat higher than the general recommendation, it will probably produce a better result. But in another place, excessive use of a fertilizer may cause an imbalance between nutrients. And this matter over time will disturb the nutritional balance and have bad effects.

A simple example is traditional common fertilizers, which can cause serious damage if consumed in excess. But if the consumption is optimal and correct, the desired result will be obtained.

First, it is necessary to determine why the disease or the occurrence of the lack of elements in the plant or product happened. For this, you should review the amount of irrigation, fertilization and prevention for pests. Check the farms or gardens nearby to see if they have faced the same problem as you. It is very wrong to associate any jaundice with iron deficiency. Because all the lack of various elements and the occurrence of diseases and pests somehow cause yellowing in the plant. Diagnosing the type of jaundice is very important for treatment.
In these cases, it is recommended to get help from experts to determine the type of disease or deficiency and then take action to fix it.

Carefully read the instructions for using the fertilizer described in the label.
Pay attention to the time of fertilizer application. Using fertilizer at specified times increases its efficiency.
Pay attention to how to use the product. Some cases should be used in the form of irrigation or foliar spraying.
Be careful in choosing the right dose. It depends on the type of consumption and your irrigation system.
If you need advice, contact the technical unit.

Macro elements are elements that the plant needs more of and have higher consumption amounts in plant nutrition. which itself includes 2 subgroups: primary macro elements which include nitrogen, phosphorus and potassium elements. and secondary macroelements that include magnesium, calcium and sulfur.

Micronutrients or micronutrients include food elements that have a small amount of consumption in plants, but are very important and effective. And in addition to attention and consumption of macro elements, micro elements should also be used. The micro elements that are used as fertilizers and we face a deficiency include iron, zinc, manganese, copper, boron and molybdenum.

Spraying means spraying the combination of fertilizer and water in a specific ratio on plants, especially leaves (stems and fruits), which is called foliar feeding. Most elements can be absorbed by leaves, but foliar application of some elements such as iron, zinc, manganese, calcium and nitrogen are very important. Spraying is mainly used in unfavorable soil conditions (high soil pH or calcareousness, fixed elements in the soil) and the occurrence of deficiency symptoms.

The meaning of irrigation fertilizer or root fertilization means that fertilizer is used with irrigation water, which is done in traditional (submerged) irrigation and modern irrigation under drip and rain pressure. In this method, the fertilizer composition is absorbed through the roots. Some elements such as phosphorus are better absorbed by the roots and cause the development and strengthening of the roots.

Fertilizers produced by Sepehr Parmis Company can be mixed and used with most chemical fertilizers, humic acids or organic fertilizers.
It is recommended not to mix with herbicides.
It is strongly recommended not to mix with fungicides.
It can be mixed with insecticides.
But in general, it is recommended to do a mixing test in every mixing. Mix a small amount of fertilizer and the desired compound in a container, and if no reaction is observed (cutting, heat generation, gas generation, etc.), it can be mixed.
Avoid creating compounds that have too acidic pH or too alkaline pH.

Our fertilizers do not harm the microorganism and according to the research; It preserves soil microorganisms. Paying attention to nutrition during the growth period and strengthening the plant also increases the resistance of plants to pests and diseases, for example, Absorbable Potassium Fertilizer increases the plant's resistance to diseases by increasing plant sap, and to strengthen plants before and after Fighting diseases is helpful. Also, Chelated Copper Fertilizer can also be used due to its favorable effects in the prevention and control of pests in plants.

But it should be noted that in the face of bacterial, viral, etc. diseases, it is necessary to take timely action with the opinion of experts and carry out specific instructions to fight against each disease, which must be done at the right time.

Considering the sensitivity of the amount of fertilizer used in greenhouses, it is necessary to avoid using too little or too much, or consider the conditions of the greenhouse (such as soil or non-soil cultivation, type of cultivation, water quality, etc.) experts to be arranged. It is also important to pay attention to nutrition before cultivation. But in general, after cultivation, attention should be paid to the composition of fertilizers for use in sources and for use in the irrigation method. All our products can be used as foliar spraying in greenhouses. And if you need to add our fertilizers in root fertilization or weekly irrigation fertilizer is recommended; pH must be measured, especially in hydroponic systems. Because according to the acidity of the products, there may be no need to add double acid to the system. Also, start fertilizing with a minimum dose and gradually increase it so that the best dose is obtained according to the conditions of the greenhouse. The minimum dose is 1 to 2 kg per 1000 square meters. During the growth period, it is recommended to use calcium complex fertilizer alone and magnesium chelate fertilizer, super micro complete 13 element fertilizer and 10% iron chelate fertilizer with organic matter at the same time.

All 3 of our Chelated Iron Fertilizers have similar effects for iron deficiency and contain 10-12% iron chelate. The main difference between these products is in their auxiliary elements. For example, Chelated Iron 10% Fertilizer with OM; It contains iron chelate and organic matter that can be used to eliminate iron deficiency in garden, agricultural and greenhouse products. Enriched Iron Fertilizer also contains 8 Elements for better iron absorption in addition to iron chelate. The habits of iron deficiency are similar to the deficiency of elements such as manganese, magnesium and nitrogen, and there is a possibility of simultaneous deficiency of these elements and iron deficiency. Therefore, in this situation, the enriched iron chelate fertilizer can eliminate chlorosis or yellowness caused by the simultaneous lack of elements similar to iron. In general, it is recommended to use our products as a foliar spray when iron deficiency occurs, and to prevent iron deficiency, it is recommended to use it as an irrigation fertilizer.
Related explanations in differential diagnosis of iron deficiency with other elements:
Characteristics of iron deficiency in the plant: yellowing of leaves, veins remaining green, appearing in young leaves
Differential diagnosis of iron deficiency with other elements:
· Nitrogen: uniform yellowing of the whole leaf, appearing in old leaves
· Magnesium: yellowing between the veins, paleness of the edges of the leaves, appearing first in old leaves
· Manganese: creating yellow lines in the leaves, the veins of the leaves remaining green, the tips and edges of the leaves remaining green

The dosage of the products varies depending on soil and water conditions, plant needs, deficiency of elements, nutrition Programs, etc. which should be chosen according to experts' opinion and Nutrition plan and used at the right time with the correct dose to give best effectiveness. But in general, the average consumption of powdered products can be expressed as follows:
Average consumption in crops:
· Traditional irrigation Application: 6 - 10 kg
· Drip irrigation system Application: 4 - 6 kg
Foliar Application : 2 kg per 1000 liters of water
Average consumption in garden Fruits:
· Traditional irrigation Application: 8 - 12 kg
· Drip irrigation system Application: 6 - 10 kg
Foliar Application : 2 -3 kg per 1000 liters of water
DeepPlacement Application: 50 to 100 gr for each mature tree
Average consumption in greenhouse products:
Irrigation Application: 1 - 2 kg per 1000 square meters
Foliar Application : 1 -3 kg per 1000 liters of water