Fertiliser for Avocado Trees – Fertiliser Solutions by Kynoch

Unlock the full potential of your orchard with the best fertiliser for avocado trees. At Kynoch Fertilizer, we provide tailored solutions to boost your yield and ensure the health of your avocado trees.

Optimising Growth with Fertiliser for Avocado Trees: A Comprehensive Guide

As a commercial avocado farmer, understanding the specific fertiliser needs of your trees is crucial to maximising yield and ensuring the health of your orchard. At Kynoch Fertilizer, we are committed to providing you with the best fertiliser for avocado trees, ensuring you get the most out of your investment. In this comprehensive guide, we’ll explore the nutritional requirements of avocado trees, how to optimise their growth, and why Kynoch Fertilizer is the leading supplier of fertiliser products in South Africa.

Understanding the Nutritional Needs of Avocado Trees

Avocado trees, like all crops, require a balanced supply of nutrients to thrive. These nutrients are divided into macronutrients and micronutrients, each playing a vital role in the growth and fruit production of the trees.

These micronutrients, though required in smaller quantities, are equally essential for the optimal growth and fruiting of avocado trees.


  1. Nitrogen (N): Essential for vegetative growth, nitrogen promotes the development of leaves and branches, ensuring a robust canopy that supports photosynthesis.
  2. Phosphorus (P): Critical for root development and flowering, phosphorus aids in the establishment of young trees and the production of blossoms and fruit.
  3. Potassium (K): Vital for fruit quality and disease resistance, potassium enhances the size, taste, and shelf-life of avocados.
  4. Calcium (Ca): Important for cell wall structure, calcium prevents disorders such as blossom end rot and improves overall tree health.
  5. Magnesium (Mg): A key component of chlorophyll, magnesium is necessary for photosynthesis and energy transfer within the plant.
  6. Sulphur (S): Involved in protein synthesis, sulphur supports overall growth and vitality.


  • Iron (Fe)
  • Manganese (Mn)
  • Zinc (Zn)
  • Copper (Cu)
  • Boron (B)
  • Molybdenum (Mo)

Starter Fertilizer

KynoPop® is Kynoch’s carefully formulated pop-up fertilizer – a fine, dry, highly water-soluble product, that enhances the vigour of the seedling and improves early root development.

KynoPop® has been specifically developed to provide for the immediate needs of the young seedling to ensure stronger seedlings that can better tolerate stress conditions, diseases and pests. This well-formulated product contains macro, secondary and micro-elements in a ratio especially beneficial to seedlings when used as a general application.

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Miracle Range by Kynoch

Best Practices for Fertilising Avocado Trees

To get the most from your avocado crop, it’s crucial to apply fertiliser for avocado trees at the right times and in the right amounts. Here are some best practices:

Soil Testing

Before applying any fertiliser for avocado trees, conducting a soil test is imperative. Soil testing will provide you with valuable information about the nutrient composition and pH of your soil, allowing you to tailor your fertiliser applications to meet the specific needs of your trees.

Timing and Application

  1. Young Trees (0-3 years):
    • First Year: Apply a balanced fertiliser with a higher nitrogen content to promote vegetative growth. Split the applications into three or four doses throughout the growing season.
    • Second and Third Years: Continue with a balanced fertiliser but gradually increase the amount as the trees grow. Ensure the fertiliser is applied around the drip line where the feeder roots are located.
  2. Mature Trees (4+ years):
    • Apply fertiliser in three main stages: pre-flowering, fruit set, and post-harvest. This timing ensures that the trees have the necessary nutrients during critical growth phases.
    • Use a fertiliser blend that supports fruit development and enhances fruit quality, with a focus on potassium and phosphorus during the fruit set and development stages.

Irrigation Management

Proper irrigation is crucial when fertilising avocado trees. Nutrient uptake is maximised when the soil moisture is optimal. Over-watering or under-watering can lead to nutrient leaching or deficiencies, respectively. Drip irrigation systems are highly effective in maintaining consistent soil moisture levels and ensuring efficient nutrient delivery.


Mulching around the base of the trees helps retain soil moisture, suppress weeds, and improve soil structure. Organic mulches like wood chips or straw decompose over time, adding organic matter and nutrients to the soil.

Range of Biostimulants to give your Avocado Tree what it needs

KynoHumate – Black

KynoHumate is used as a soil amendment and stimulates root development and growth. KynoHumate contains humic acids that have many benefits for the soil environment and plant metabolism. It forms an important part of soil biology and serves as a source of energy for microorganisms. One of the major benefits is the retention of nutrients against leaching and the increase in nutrient availability. Humates help the plants tolerate salinity stress.

KynoHumate Black

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KynoFulvate – Yellow

KynoFulvate stimulates plant growth and promotes nutrient uptake. It can be used applied either as a foliar or directly to the soil application and can be combined with other fertilizer products. KynoFulvate contains fulvic acids. Fulvates can be absorbed by plants and seeds and have a direct effect on many plant processes. Among other things they improve seed germination, increasing the energy levels and increase membrane permeability. Complexes are formed with nutrients within the soil that mobilize these nutrients. While within the plant the nutrient movement (membrane permeability) is increased. Both promote nutrient uptake.

KynoFulvate Yellow

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KynoKelp is seaweed suspension containing natural macro and micro elements that can be used as a foliar application or root application. It is derived from the kelp species Ecklonia maxima, which grows along the Atlantic coast of Southern Africa. Kynokelp encourages the growth of plant roots. The improved root growth increases nutrient absorption and water use. Higher yields are produced by established, stronger plants. The plants experience extreme stress while producing fruit, which Kynokelp can help manage. Kynokelp aids plants in managing additional stress factors that could restrict growth.


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Common Nutrient Deficiencies in Avocado Trees

Recognising the signs of nutrient deficiencies can help you adjust your fertilisation practices accordingly:

  • Nitrogen Deficiency: Yellowing of older leaves and reduced growth.
  • Phosphorus Deficiency: Stunted growth and dark green or purplish leaves.
  • Potassium Deficiency: Marginal leaf burn and poor fruit quality.
  • Calcium Deficiency: Tip burn on young leaves and fruit disorders.
  • Magnesium Deficiency: Interveinal chlorosis in older leaves.
  • Iron Deficiency: Yellowing of new leaves with green veins.
  • Zinc Deficiency: Small leaves and rosette growth pattern.

The right fertiliser for avocado trees will help to avoid these deficiencies, ensuring you get the most from your Avo crops. Discuss your needs with a consultant at Kynoch.

    Kynoch Fertilizer: Your Partner in Farming

    At Kynoch Fertilizer, we pride ourselves on being a trusted name in fertiliser products across South Africa. With a rich history of assisting farmers to achieve the best possible yields, we offer crop-specific and growth stage-specific fertilisers tailored to the unique needs of avocado trees, and other crop types.

    Why Choose Kynoch Fertilizer?

    1. Expertise and Innovation: With years of experience in the agricultural sector, our team of experts continually innovates to develop fertiliser formulations that meet the evolving needs of modern farming practices.
    2. Quality and Consistency: We use only the highest quality raw materials in our fertilisers, ensuring consistency and reliability in every product. Our stringent quality control processes guarantee that you receive fertilisers that perform as promised.
    3. Customised Solutions: We understand that no two crops are the same. Our agronomists work closely with you to develop customised fertilisation plans based on soil tests and specific crop requirements, ensuring optimal growth and yield.
    4. Sustainability Focus: At Kynoch Fertilizer, we are committed to sustainable farming practices. Our products are designed to enhance soil health and promote long-term agricultural sustainability, helping you achieve better yields while protecting the environment.
    5. Comprehensive Support: From soil testing to fertiliser application guidance, we provide comprehensive support to help you maximise your avocado or other crop. Our field representatives are always available to answer your questions and offer practical advice.

    Partner with Kynoch to get the best fertiliser for Avocado Trees

    Fertilising avocado trees is both an art and a science, requiring careful consideration of the trees’ nutritional needs and the timing of applications. By following best practices and using high-quality fertilisers tailored to avocado trees, you can ensure robust growth, high yields, and excellent fruit quality.

    At Kynoch Fertilizer, we are dedicated to helping you achieve these goals. Our extensive range of fertiliser for avocado trees and other products, combined with our expertise and commitment to customer support, makes us the leading fertiliser supplier in South Africa. Partner with us and experience the difference that tailored, high-quality fertilisation can make in your avocado orchard.

    For more information on how Kynoch Fertilizer can assist you in optimising your avocado crop, contact us today. Together, we can ensure that your avocado trees receive the best possible care, leading to bountiful harvests and a successful farming venture.