Citrus Guide: Get the most out of your citrus fertilizers

Haifa’s Nutri Haitech™ offers comprehensive nutritional solutions for precision agriculture, designed to make your operations more sustainable and efficient, reduce waste and pollution, and of course, increase yields. 
The Nutri Haitech™ advanced solutions combine plant nutrients that are targeted at the plant’s needs, paired with cutting edge, easy-to-use, ergonomic apps that empower you to create optimal fertilization plans for any terrain or weather conditions. 
Don't miss out on this opportunity to revolutionize your field practices and join the global movement towards a more sustainable agriculture.


Highlights for your Citrus crop nutrition

Citrus trees have shallow root systems, with an effective root zone that usually lies in the top

30-40 cm, depending on the soil type. To ensure the nutrient use efficiency, fertilizer application should be confined to this zone.  



Citrus growth and fruit production are impaired by soil salinity. In general, yield reduction occurs at electrical conductivities (EC) above 1.4 ds/m. When soil or water is saline, Application of potassium nitrate and calcium will suppress chloride and sodium uptake and reduce salinity stress.



Micronutrients serve as critical co-factors for hormone synthesis, influencing their quantity and effectiveness. Boron and molybdenum stimulate auxin synthesis and transport, thus increasing gibberellin concentration and boosting fruit growth.

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Foliar nutrition

Foliar application of nutrients allows for tactical nutrient supply required at the different growth stages. Foliar application of urea triggers plant auxin syntheses, thus strongly affecting bud emergence and flower initiation. 

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The preferred form of nitrogen for root uptake is nitrate (NO3-), as it is easily absorbed by the plant.


Controlled release fertilizers

Single annual application of controlled release fertilizers in the first years after planting encourage tree establishment, regulates growth and speeds fruit bearing.

Enhance nutrient use efficiency with Multicote™ Agri


Vegetative: Vegetative growth starts with root growth. Nitrate nitrogen is easily absorbed by the roots, providing the N required at this stage.
Foliar application of urea encourages auxin synthesis, resulting with better flowering.

Flowering and fruit-set: At the flowering stage, which is critical to set the total yield potential, auxins initiate ethylene synthesis and induce flowering. To avoid flower dropping, it is recommended to apply auxin supportive co-factors such as Ca, B, Mo and Zn.
Fruit development: When fruit development takes place under hot weather conditions, high night temperature reduces auxine synthesis and sugar transport into the fruits. Potassium application supports sugar transport to the fruits, increasing fruit size and sugar content.
Magnesium is critical for potassium (K) transport. Calcium and silicates may reduce skin disorders and fruit malformations.

Harvest: Calcium application improves fruit quality and shelf life.  Post-harvest NPK application develops nutrient reservoir for next seasons growth.


Haifa Solutions for citrus nutrition

Note: the recommendations brough here should be considered as general guidelines. The actual program should consider the plant status and growth conditions. Consult Haifa agronomist to suit the optimal nutritional program for your grape crop. 



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