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SUPER HIGH DENSITY

· CITRUS·

An innovative, efficient and sustainable proposal

SHD System

  • Reduction of the unproductive period

    by intensifying plantation.

  • Minimal dependence on labor

    for pruning and harvesting.

  • Increase the efficiency

    of the use of inputs as pesticides, water and fertilizers.

  • Adaptation of orchards towards different productive options:

    Manual harvesting for fresh consumption of domestic and export markets; mechanically harvesting when the fruit destination is for industry; or combining both options depending on the prices of the growing season.

Basis of the Hedge Model and Plantation Management

civac19-1

Right choice of plant material

Variety and Rootstock. The most important factor due to the characteristics of the fruit, the taste quality, and the double suitability for fresh or industry, especially for early harvest varieties.

Captura de pantalla 2023-08-23 154556

Size controlling rootstocks

Vigor control is key to having small volume canopies that are easily machinable and efficient in light distribution inside the canopy. Also, an efficient use of inputs requires small and bidimensional canopies.
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Training system in hedge

SHD plantings are based in narrow planting densities resulting on smaller and more bidimensional canopies when compared with the traditional ones.

Citrus hedge is based on two-dimensional canopy made up of multiple branches that should efficiently occupy the smaller space allocated

Starting from a SmartTree® tree and through subsequent pruning trimming throughout the training period, the tree will fully develop, occupying the assigned space and reaching full production in the 4th or 5th year.

The planting distances range from 11.5 to 13.1 ft between lines and from 3.9 to 4.9 ft between trees.

This is equivalent to planting densities of 963 to 675 trees/acre. The distance from the lowest branches to the ground should not be less than 1.64 ft to facilitate harvesting and to avoid the loss of fruit due to the movement of the ride-on machine.

shd citrus

Experiences on SHD in Citrus around the world

sevilla

Sevilla, Spain

Annual cumulative yields and mean fruit size of several citrus varieties at IFAPA Experimental farm in Alcalá del Río (Sevilla). Trees planted in June 2015 with a planting distance of 11.5 x 3.3 ft (3.5 x 1 m).

cordoba

Córdoba, Spain

Yields and mean fruit size (in) corresponding to ‘Valencia Late’ and ‘Valencia Delta Seedless’) grafted on three rootstocks (CIVAC19, FA5 and FA517) in Moratalla Farm. Spacing ’Valencia Late’ 11.5 x 4.1 ft and ‘Valencia Delta Seedless’ 11.5 x 4,9 ft (3.5 x 1.5 m).

civac 19

Civac 19

General Information

  • Hybrid: Citrus reshni (var. Cleopatra) x Poncirus
    trifoliata
  • Origin: Citrus rootstocks Breeding Program in co-obtenation IVIA - Agromillora


Resistances and tolerances

  • Citrus Tristeza Virus (CTV). Tolerant. Presence of the 3 resistance genes by PCR
  • Iron Chlorosis. Tolerant to limestone. Better root activity irrigating without Fe than other rootstocks.
  • Flooding. Tolerant
  • Salinity. Very resistant
  • Agronomic behavior. Very high production efficiency, good fruit size and early ripening.
  • Vigor. Semi-dwarfing.

The process of training trees in hedge from planting to adult trees 

SHD CITRUS YEAR 1
shd citrus year 2 3
shd citrus 4

Florida, 2021

Spain, 2023

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Do you want more information? 

AGROMILLORA AUSTRALIA | info.au@agromillora.com | Tel. +61 3 5024 6312  |  149 Newton Ave, Irymple - VIC 3498, Australia