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"Doktor Tarsa founded by Prof. Dr. Mazhar Özman in 1987 in İstanbul. Being a medical doctor, Prof. Dr. Özman had a passion to grow healthy plants.

While trying new products in his small garden greenhouse, he discovered the effectiveness of peat moss on germination, a product which was not known by Turkish farmers in that time.

Thrilled by this success in his small garden, he thought that everybody should benefit from this new product and decided to share this new application with Turkish farmers.

For this reason, he founded a small company. A company, whose first action was to meet new technologies with farmers. As the essence of its foundation, innovation is still the primary mission of Doktor Tarsa.

After several difficult, but successful years of proving the necessity of peat moss, a new challenge was awaiting with the developments in modern irrigation and plant nutrition products. Doktor Tarsa became one of the pioneers in this area as well.

Getting bigger each year, the company renowned by its professional approach and became the distributor of major global plant nutrition, irrigation and peat moss producers."

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DRT developed Novalon wsNPK series to improve plant health and growth with using fertigation systems. Our extensive experience in nutrient management in hydroponic systems in a wide range of crops and knowledge of soil nutrient interactions, served as the basis in deciding on the formulations. Novalon improves yield, quality, taste and appeal of the crop. Easy and safe to use in vegetables, cut flowers and other specialty crops grown in open field and greenhouses. Water soluble NPK series of Novalon is manufactured using the latest technology for the production of water soluble fertilizers.

Novalon

Nutriflex is a specially designed NPK fertilizer range for vegetable, fruit and cut flower nutrition. Within Nutriflex range you can find different formulations for various crops. Each formulation is prepared to provide all essential nutrients that crops may need. Nutriflex plant nutrient solutions developed due to advanced knowledge and practices. Nutriflex provides easy calculation for right and balanced plant nutrition with every dosing system. Plants produced under drip irrigation system will have relatively limited root area. This relatively limited root area irrigated with drip system must be fertigated very carefully to achieve good results. Standard NPK formulations are used to supply the needs of the crops by making different kind of mixes. The idea of producing Nutriflex is to supply all the essential nutrients during all the growing periods to the root area in an ideal fertilization system. Thus, there are crop specific fertilizers. Nutriflex does not contain any Chlorine or Excess Sulphate that will cause salinity around the root area when it is not uptaken by the crop. Nutriflex assures correct fertilization resulting in optimum yield during all season.

Nutriflex

Doktor Tarsa Speedfol

Technofert range is designed for use in alkaline soils. All formulas under Technofert brand contain special additives, organic and chemical acids. All Technofert formulas pH levels are around 2. This feature of the product increases the availability of nutrients, prevents insoluble plant minerals formation and increases the mobility of the plant nutrients in alkaline soils. It is a crystalline powder and has easy and safe handling. Its acidic nature helps cleaning the drip lines and prevents clogging in the irrigation systems. Technofert has 5 different formulas available for different phenological stages of the plant. Technofert™ is produced by high quality raw materials, and is highly soluble. It enables effective uptake, yield, quality and earliness since it optimizes the soil and irrigation water during fertigation. Technofert™ is under the DRT quality assurance. Every product put on sale is applicable to the Standards of Fertilizer Regulations of European Union. DRT has the TS EN ISO 9001:2008 licence of Quality Management System. It is applicable to International Quality Standards. Technofert™ Special Fertilizer Series application in nurseries and foliar use, please make sure you definitely check the pH of the solution and get professional assistance. It is not suitable for hydroponics. For further information, please contact our regional distributors or DRT offices.

Technofert

It is a highly available special straight fertilizer series that supplies Phosphorus, Potassium, Magnesium and Sulphur to the plant. Besides other plant nutrients, these highly required four nutrients are vital for yielding crop production. With the “Nitrogen and Phosphorus” (Coral), “Phosphorus and Potassium” (Green) content, it provides optimum development at early stage; with the “Potassium and Magnesium” (Ruby and Indigo) content, quality and yield increase can be observed at maturation stage. Products can be applied with different irrigation systems or as top dressing at cultivation fields.

KeyMag

DOCTOFERRO

High potassium formulation for fruit development stage or when potassium demand is high. Potassium supports fruit development and increase fruit quality parameters. It increases the crop yield and quality, and resistance of the plant against the environmental stress conditions in the productive periods of vegetables, fruits, bulb and tuber plants.

Technofert™ EOS

Nutriflex is a specially designed NPK fertilizer range for vegetable, fruit and cut flower nutrition. Within Nutriflex range you can find different formulations for various crops. Each formulation is prepared to provide all essential nutrients that crops may need. Nutriflex plant nutrient solutions developed due to advanced knowledge and practices. Nutriflex provides easy calculation for right and balanced plant nutrition with every dosing system.

Nutriflex T

Novalon NPK-20-20-20+TE

Speedfol Amino Starter SC is suspension concentrate liquid fertilizer contains NPK + S + 6 micro elements, enriched with amino acids and hormones. Speedfol Amino Starter SC especially formulated to support plants at the beginning of its life cycle with providing an ideal nutrition with high phosphorus inside to encourage rooting.

Speedfol Amino Starter SC

Doctoferro 52,5 EDDHA 6% is a EDDHA product contains high amounts of ortho-ortho. Minimum 88% of iron that product contains, chelated by ortho-ortho isomer. Its availability is very high with minimum 5,25% ortho-ortho content. It is the most logical iron fertilizer choice under cost-benefit analysis.

DOCTOFERRO 52

A multipurpose, special formulation which stimulates flowering and fruit set. Suitable for use in any stage in case of high N.P.K demand. Balanced formulation for every growth stage when there is general nutrient demand. Nitrogen, phosphorus and potassium are three critical plant nutrients needed high amounts by plants.

Technofert™ DYNAMIC

Nutriflex C

Balanced NPK ratio with Magnessium and trace elements for general growth. Novalon 20-20-20+0,5MgO+TE promotes early plant development and root growth. Also suitable for post harvest applications to restore nutrient reserves. Used in many countries by leading farmers. Easy to use, lasting feeding effect and good tank mixability.

Novalon FOLIAR 20-20-20

Nutriflex S

Doktor Tarsa

"Doktor Tarsa founded by Prof. Dr. Mazhar Özman in 1987 in İstanbul. Being a medical doctor, Prof. Dr. Özman had a passion to grow healthy plants.

While trying new products in his small garden greenh

Doktor Tarsa - Peat Moss - Germination - Plant Nutrition

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Documents - Doktor Tarsa - Knowde

Technofert™ Brochure

KeyMag Brochure

DOCTOFERRO 48 Technical Data Sheet

NOVALON FOLIAR Brochure

DOCTOFERRO 52 Technical Data Sheet

NUTRIFLEX Brochure

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