Modern Citrus Growing in the Metaponto Plain: Innovation, Balance, and Productive Quality

The Metaponto Plain, in Basilicata, is now considered one of the most important areas for modern citrus cultivation in Southern Italy. This fertile coastal strip overlooking the Ionian Sea is renowned for high quality productions such as the strawberries of Policoro and Scanzano Jonico, the apricots of Rotondella, and the citrus groves of Pisticci and Metaponto. Until only a few decades ago, this territory was characterized by marshlands and malaria, but thanks to the extensive land reclamation projects launched in the 1950s, it was progressively transformed into a highly specialized agricultural area.

Within this context, increasingly advanced citrus cultivation systems have developed, based on the introduction of new varieties, innovative rootstocks, and modern agronomic techniques focused on vegetative balance and the economic sustainability of orchards. This technical and educational pathway has also been promoted by Agronomist Vito Vitelli.

The establishment of a modern citrus orchard begins with proper soil preparation. In compact soils, deep ripping is recommended, as it breaks up compacted layers and improves both soil aeration and root development. The construction of raised beds is also essential, particularly in soils subject to waterlogging. In the most challenging conditions, raised beds may reach heights of 60 to 70 cm.

The selection of nursery stock is equally important. According to Vitelli, attention should not focus solely on the canopy, but above all on the root system, which must be healthy, well developed, and grown in light, well aerated substrates. The use of anti spiraling pots is also essential to prevent roots from wrapping around themselves.

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Transplanting also requires careful management. The use of augers or excavators is discouraged, as they tend to create compacted walls inside the planting hole. It is preferable to use only a shovel or hoe, digging holes proportionate to the plant’s root ball. After transplanting, the drastic reduction of leaf surface area, even by 60 to 70%, becomes strategically important. This intervention allows the plant to rapidly restore the balance between the root system and the aerial part, promoting vigorous vegetative regrowth.

During the training phase, the principle known as the “palm of the hand” is applied, keeping the scaffold area open and well ventilated. Through light spur pruning and heading cuts, a balanced, well illuminated, and easily manageable canopy is progressively developed.

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In mature citrus orchards, production pruning mainly aims at creating an internal “light cone.” Citrus trees are trained in a globe shape, but the center of the plant must remain bright and well aerated. This improves fruit quality and creates conditions that are less favorable for the development of numerous harmful organisms.

The technique consists of removing weak branches located in the inner part of the canopy and spur pruning the more vigorous ones in order to stimulate the formation of new productive wood. In this way, approximately 80% of the tree continues to produce, while the remaining 15 to 20% is constantly renewed. This is the central principle of modern citrus cultivation promoted by Agronomist Vito Vitelli: producing while simultaneously regenerating the tree, maintaining it over time in vegetative, productive, and economic balance.

Editorial Note:
Original content curated by Agronomist Vito Vitelli, developed and optimized with the support of artificial intelligence tools for educational, informational, and technical enhancement purposes.

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