planting and harvestin saffron

What fertilizers are used for planting saffron?

In general, two types of fertilizers are used for planting and harvesting high quality saffron:

  • Animal manure
  • Chemical fertilizers

But first, let me tell you about Iranian saffron;

The scientific name of this plant is Crocus sativus, belongs to the Iridaceae family. This product is a perennial herb. It has anti-depressant, anti-spasmodic, anti-cancer properties, and is also used as an herbal medicine to treat respiratory infections such as coughs, colds and asthma. This material has many applications in industries such as cosmetics, perfumes and also in textile dyes. Join us to learn more about the water, air and soil conditions for growing saffron, as well as the proper fertilizing conditions for this plant.

Cultivation of saffron in Iran

Saffron is a plant with unique properties. The total world production of this spice is estimated at 220 tons, of which 90% in Iran and 98% of it belongs to Khorasan province, and our company has a contract with 800 farmers in this region to deliver the best and highest quality saffron to customers. To send. To ensure the quality of our saffron, we will send you our product test sheet before purchase.


Saffron cultivation has the highest yield in dry and subtropical climates. Therefore, Iran has one of the most suitable climates for growing saffron.The total area of ​​saffron in Iran is estimated at 50,000 hectares. The growing trend in the area of ​​infrastructure lands has been observed since 1988-2001 with a 3.9% increase in the area under cultivation with an average increase of 22.4%. The average growth of saffron in Iran over a period of 25 years has been reported at 4.7 kg in hectare.
Since saffron is a perennial crop, it is compatible with organic fertilizers and therefore animal manure plays an important role in this regard. 40 to 80% of saffron growth depends on fertilizers and salts and 1 to 10% depends on the availability of water. Soil chemical criteria such as organic fertilizers, available phosphorus, mineral nitrogen and exchangeable potassium and C / N ratio are the most important factors affecting the yield of saffron. The average fertilizer use in the 5 main saffron production regions in South Khorasan is 19%.

Animal manure for saffron cultivation

Saffron grows as a perennial crop, so long-term soil fertility is essential to achieve high production and profitability per unit area. The yield of saffron is strongly influenced by organic and chemical fertilizers. Animal manure causes more flowering in saffron compared to chemical fertilizers.
Fertilizer for increasing saffron flowering is in fact animal manure. In general, it seems that cow manure is more effective in strengthening and growing the plant. Field observation showed that the use of organic fertilizers causes flowers to grow faster compared to chemical fertilizers.

It has been reported that the use of animal manure is widespread among saffron farmers. Research has shown that 67% of yield changes depend on animal manures and phosphorus fertilizers. In general, the effect of animal manure is more than chemical fertilizer on saffron yield and saffron growth. Animal manures include two main types: Cow manure and Poultry manure.

Cow manure

Research has shown that among the experimental treatments, the use of 70% sand + 30% soil + cow manure improved all flowering indices in saffron. Also, the highest weight of saffron coriander and the number of its buds were observed in this treatment. Therefore, by improving the soil and making the farm soil lighter or selecting lighter textured lands for saffron cultivation, it is possible to increase the economic performance of this plant.

Researchers in recent years have found that the use of light tissue with cow manure had a positive effect on the weight of saffron flowers and stigmas. Other researchers have also stated that sandy soil with organic matter content is the best soil to improve the growth characteristics of onion plants. Most researches have shown that among cattle, sheep and poultry manures, the maximum yield has been obtained due to the use of completely rotten cow manure and the use of poultry manures can in some cases reduce the yield of saffron.

Poultry manures

Poultry manure is a complete fertilizer that is a source of organic matter to strengthen all types of soils. In addition to containing nutrients such as nitrogen, it is also richer than other organic fertilizers after cow manure.

Poultry manure contains all the essential nutrients needed to produce crops. Poultry manure is very useful for saffron and for centuries its value has been known as organic fertilizer and a source of plant nutrients. However, poultry manure, despite its beneficial effects on plant growth, accounts for a small percentage of the nutrients used in crops, or for every pound of feed consumed, chicken is about 0.5 pounds of fresh manure with a moisture content of about 75%. produces.

Poultry manure loses water rapidly due to evaporation, and the final product typically has a moisture content of 20-40%, depending on the type and amount of litter, the type of birds, irrigation equipment, and ventilation systems.

Enriched poultry manure, unlike chemical fertilizers, has no destructive effects on plant roots, roots and the environment, and the elements in it are not washed away by continuous irrigation or rainfall, but are gradually released and activated and can be used for plant roots.

Chemical fertilizers

Chemical fertilizers provide the main nutrients (nitrogen, phosphorus and potassium and important secondary elements) needed by plants.
Nitrogen-based crops make up the largest group of fertilizers, followed by phosphorus and potassium-based fertilizers. Fertilizers are available directly or in combination based on one main nutrient or two or more nutrients, respectively.

  • Direct fertilizers make up the majority (78%) of all available fertilizers and are often supplied based on the needs of a particular product.
  • NPK compound fertilizers make up the remaining use and are available in two distinct types: mixed and complex fertilizers.

Potassium fertilizers

A saffron plant that looks tired or unhealthy may need potassium. Yellowing of the leaves can indicate a major root problem, potash fertilizer is very useful for saffron. Potassium, with all its benefits, is one of the most beneficial nutrients that can be found in fertilizers. In N-P-K fertilizers, potassium (K) is the nutrient responsible for plant metabolism.

This increases the yield and growth of the plant and acts as a support for the nutrients nitrogen (N) and phosphorus (P). In particular, potassium helps plants retain water, regulates the internal balance of cations (positive ions) and anions (negative ions) of plants, meaning that positive and negative ions are in balance and stimulates protein synthesis to energize Plants help for healthy growth.

Liquid fertilizers

Minerals are industrially produced and added to the soil in liquid form. Liquid fertilizers include nitrogen fertilizers, aqueous liquid ammonia, aqueous ammonia, ammonia, concentrated solutions of ammonium nitrate and urea, and complex fertilizers containing two or three essential plant nutrients (nitrogen, phosphorus, and potassium) in varying proportions.

The Soviet Union began using liquid nitrogen fertilizers in 1956. In 1969, about 3 million tons of liquid fertilizer were used on collective and sucrose farms. Experimental industrial production and the use of complex fertilizers began in 1966. Liquid fertilizers are widely used abroad. In the United States, up to 50% of nitrogen fertilizers and 10% of them are used as liquids.

The last word about suitable fertilizers for saffron

Most research has shown that among animal manures such as: cow, sheep, poultry manure, maximum feedback and impact has been obtained from the use of completely rotted cow manure and the use of other animal manures such as poultry can In some cases, it reduces the growth of the saffron plant.

A farmer knows the importance of good fertilizer. Knowing which fertilizer best meets your plant’s needs will help you maximize crop growth. Organic fertilizers are made from natural and organic materials. It is mainly manure, compost or other animal and plant products.

These fertilizers are a good source of nutrients, although there are no significant amounts of specific nutrients, but organic fertilizers work slowly and for a long time. One of the best benefits of organic fertilizer is that it can be made at home. Mineral fertilizers are composed of chemical compounds that contain essential nutrients. If you are looking to grow your garden fast, this is the best option for you.

Our company has a contract with 800 Khorasani farmers to deliver the best and most quality export saffron to you. For more assurance and review of our saffron test, contact Saffronfa experts to make a safe purchase.

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