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Fertilization / manuring of kiwi from planting to production

Kiwi Fertilization: A Complete Guide for Professional Kiwi Growers

Optimizing kiwifruit fertilization is essential to ensure quality fruit and meet growing market demands. From soil preparation to full production, every step of fertilization directly influences growth and yields. This technical guide is aimed at professional kiwi growers, combining practical recommendations and high-quality solutions offered by Kiwiverse, the specialist wholesale supplier of kiwifruit plants.


Preparing the soil before planting kiwis

Mature compost and organic amendments

To enrich the soil with humus and improve its structure, it is recommended to incorporate 50 to 100 tons of mature compost per hectare, adjusted according to soil analyses. This step guarantees:

  • Better water retention,
  • Increased availability of nutrients,
  • More fertile soil in the long term.

Kiwiverse Tip: By choosing our grafted kiwi plants and bare-root rootstocks, you will get an excellent start to your crop, even on demanding soils.

Base dressing for sustainable nutrition

Using compost or dried cattle manure provides a gradual release of nutrients needed for the early years of growth.

  • Fast-acting fertilizers: To stimulate initial growth, amendments such as horn or bone meal provide readily available nitrogen and phosphorus.

Fertilization in the first years after planting

Annual compost contributions

Add well-ripened compost in spring, from March, around the young plants to stimulate their rooting and vegetative development.

Natural organic fertilizers

Balanced formulations such as UAB (Usable in Organic Agriculture) 6-3-3 fertilizers are ideal for supporting continued growth. Apply 640 kg/ha in early April to meet nutritional needs without overdoing it.


Fertilization management during production period

Fractional nitrogen inputs

Adult plants require 150 units of nitrogen/ha/year, divided into several inputs:

  • Autumn: Compost to sustainably enrich the soil with organic matter.
  • Mid-March: Add organic fertilizer to prepare for flowering.
  • End of May: Application of UAB 6-4-3 fertilizer (1000 kg/ha) to support fruit set and growth.

Essential nutrients for fruiting

  • Phosphorus: Promotes fruit setting and growth.
  • Potassium: Improves sugar levels and fruit firmness.
  • Calcium: Maintains fruit firmness and stabilizes soil pH.

Precautions to be observed during fertilization

Monitor excess nitrogen

Excessive intake promotes excessive vegetative growth, to the detriment of fruit production. Adjust doses based on analysis.

Adapting inputs through analysis

Perform regular soil and leaf analyses to meet the plants' actual needs.


Why choose Kiwiverse?

  • A wide range of kiwi plants: grafted, in pots, or in cells, suitable for all needs.
  • Professional quality bare-root rootstocks for optimal rooting.
  • Competitive producer prices to maximize your profitability.
  • Dedicated technical support, offering complete assistance at each stage of fertilization.
  • Fast and careful delivery, directly to your farm, anywhere in France.

Frequently Asked Questions

Why is compost essential for growing kiwifruit?

Compost improves soil structure, enriches with humus and provides essential nutrients for plant growth.

What fertilizers should be used in organic farming?

UAB formulations, such as 6-4-3, or natural amendments such as guano and poultry droppings.

What is Patentkali, and why is it recommended?

A fertilizer rich in potash and sulfur, ideal for improving fruit quality and supporting fruiting.

When to perform foliar sprays?

Before flowering, to correct deficiencies and promote balanced nutrition.

Does Kiwiverse offer custom solutions?

Yes, thanks to our kiwi growing experts and our varied range of plants adapted to all types of soil and climates.