Citrus fruits

The common citrus fruits include many genera and species, but the species of the Citrus genus are of greater cultivation interest. These are evergreen fruit trees such as the Orange, Lemon, Mandarin, Pomelo, Grapefruit, Bitter Orange, etc. In order to achieve the best possible production and fruit quality, the nutritional needs of a citrus plantation in terms of nutrients need to be determined, so that a precise nutrient programme can be drawn up for each crop, variety and region. In general, citrus trees have high nutritional needs for Nitrogen, Phosphorus, Potassium, Calcium, Magnesium. In order of importance, essential are Micronutrients, Iron, Boron, Manganese, Zinc and Copper. Attention should also be paid to the particular sensitivity of citrus fruits to boron toxicity. In addition, the use of specific nutrient formulations – biostimulants – maximises the genetic potential of the crop, while ensuring that its resistance to abiotic stress is enhanced. Finally, post-harvest applications are also of interest, for the storage of nutrients in the root system.