Olive grove fertilisation programme

Post-harvest and autumn

With the olives picked, the grove enters the coldest part of the year. The tree slows down, and what remains in the wood and the root after carrying fruit is what the next season will start from.

In our programme, this window carries no dated foliar treatment: the annual plan begins with the first treatment (late February, early March). The irrigation route, common to all olive trees, has no period in the programme either; its dose per hectare and the minimum number of irrigations are in the calendar.

• No treatment in the programme is dated in this period.

Bud burst and spring

At the end of winter the olive comes out of dormancy: it buds, extends the year’s shoot and prepares for flowering. This is the period in which the programme concentrates its foliar applications: two consecutive treatments, roughly a month apart.

In our programme, this is where the first treatment (late February, early March) and the second (about a month after the first treatment) fall. Both go by the foliar route, with the dose per 1,000-litre tank, and each product is read below with its dose in that treatment.

The technical data sheets of FENORGANIC BORO, FENORGANIC COBRE PLUS and FENORGANIC NITRÓGENO 16 publish the same warning for their mix in the programme: pre-dissolve before adding to the tank, do not apply in high temperatures and do not change the doses without authorisation from our technical department. The text of each one is in the programme warnings.

• First treatment · late February, early March · Foliar · application dose

  • FENORGANIC UNIVERSAL3 L per 1,000 L tank in each treatment (also on young olive trees, monthly)
  • FENORGANIC COBRE PLUS2 L per 1,000 L tank
  • FENORGANIC PK 20-20 Líquido Soluble3 L of PK 20-20 mixed with UNIVERSAL 0-0-1 (3 L), NUTRIPLUS N10 (2 L), MICROELEMENTOS (1 L) and COBRE PLUS (2 L)
  • FENORGANIC MICROELEMENTOSIn the mix for this treatment; its dose is read in the row of the product that names it.
  • FENORGANIC NUTRIPLUS 10In the mix for this treatment; its dose is read in the row of the product that names it.

• Second treatment · about a month after the first treatment · Foliar · application dose

  • FENORGANIC BORO2 litres per 1,000 L tank, mixed with UNIVERSAL 3 L + PK 20-20 1 L + NITRÓGENO 16 2 kg
  • FENORGANIC UNIVERSAL3 L per 1,000 L tank in each treatment (also on young olive trees, monthly)
  • FENORGANIC NITRÓGENO 162 kg/1,000 L
  • FENORGANIC PK 20-20 Líquido Soluble1 L of PK 20-20 mixed with UNIVERSAL (3 L), NITROGENO 16 (2 kg) and BORO (2 L)

Summer and stress

Summer in the olive grove is heat, light and little water. With the fruit already set, the tree goes through the months of stone hardening and slow olive growth under the water and heat stress typical of the time of year.

In our programme, the third treatment is set not by a month but by the state of the fruit: olive fruit set. It is the one that opens this period. It goes by the foliar route, with the dose per 1,000-litre tank.

The warning that matters most in these months is the one that the technical data sheets of FENORGANIC BORO, FENORGANIC COBRE PLUS, FENORGANIC NPK 7-7-7 and FENORGANIC NITRÓGENO 16 publish for their mixes in the programme: do not apply in high temperatures. It is a condition that is repeated more in summer than in any other period; and the dose, as in the rest of the programme, is not changed without authorisation from our technical department.

• Third treatment · olive fruit set · Foliar · application dose

  • FENORGANIC CALCIO 880CALCIO 2 L per 1,000 L
  • FENORGANIC UNIVERSAL3 L per 1,000 L tank in each treatment (also on young olive trees, monthly)
  • FENORGANIC NUTRIPLUS 10In the mix for this treatment; its dose is read in the row of the product that names it.

Veraison and green harvest

At the end of summer the olive changes colour: this is veraison, the beginning of ripening. For table olives it is the time of the green harvest, picking while still green; for mill olives, the stretch leading up to harvest.

In our programme, this is where the fourth and last foliar treatment falls, the one at ripening. It is the only one of the four whose dose the programme gives without a tank volume, and that is how we publish it: the figure for each product is as written in the programme, without converting it to a 1,000-litre tank. After this treatment the programme dates no further treatment until the first of the next season.

• Fourth treatment · ripening · Foliar · application dose

  • FENORGANIC UNIVERSAL3 L per 1,000 L tank in each treatment (also on young olive trees, monthly)
  • FENORGANIC POTASIO K20POTASIO 20: 3 litres
  • FENORGANIC NUTRIPLUS 10In the mix for this treatment; its dose is read in the row of the product that names it.