• Change text size

    • Normal Text
    • Medium Text
    • Large Text
  • Contrast

    • Black&white
    • High
    • Normal
  • Display

    • Cursor White
    • Cursor Black

You are here

Why Foliar Spray?

Discover the benefits of foliar nutrition

A small investment that leads to big results. Discover the benefit of foliar spray with Haifa Bonus


Complementary nutritionComplementary nutrition

Foliar application is a must when soil fertilization is sub-optimal or ineffective.

Foliar Spray - a complementary plant nutritionIn many farming practices most of the fertilizers for the growth season are applied as base dressing. Such practice often result a significant decrease of essential nutrients in the soil during the season. This may affect plant growth, and reduces yield. A mid-season foliar spray of fertilizers will balance and complete plant nutrition, and help to retain healthy and fruitful growth. A relatively small amount of fertilizers will lead to a dramatic improvement and will get the crops to optimal growth curves. This is a real Bonus. In some cases uptake of nutrients by the roots may be impaired due to low temperatures, water logging, nematodes, or other reasons. Here also, foliar nutrition is a true bonus, offering a beneficial complementary nutrition.


Corrective nutritionCorrective nutrition

Foliar sprays are fast acting and effective for treatin nutrient deficiencies.

Foliar uptake of nutrients is much faster than root uptake. Therefore foliar feeding is the method of choice when deficiency symptoms are noted, and prompt correction of deficiencies is required. Nutrients rapidly absorbed through the foliage, providing the plant with the missing nutrients, and strengthening it.


Growth boostingGrowth boosting

A precise timing of foliar nutrition lead to growth and yield improvement.

Certain phases of plant development are highly important in determining the final yield. A foliar nutrition precisely given during these specific phenology stages ensures optimal growth, and best possible yield. In relatively low concentrations at these critical stages, foliar nutrition boosts physiological processes of the plant, ensures optimal development, and contributes significantly to higher yields and better quality.


Specific inductionSpecific induction

Foliar fertilizers activate particular plant mechanisms

Foliar application of certain fertilizers are known to induce dormancy breaking in grapes and deciduous fruit trees. They are also efficient in stimulating flowering, mainly in mango.



Tips for a successful foliar spray

GeneralSprayer in field - foliar feeding
• Spray during the cooler and more humid hours of the day
• Apply foliar spray when wind is low
• Never spray plants under stress
• Test for possible side-effects or phytotoxicity by a small trial, spraying a week prior to the intended commercial treatments
• After spraying rinse thoroughly the sprayer and all its parts with fresh water


Setting application rates
• Consider both spray concentration and spray volume.
• If you apply smaller (or larger) volume than recommended, increase (or decrease) the fertilizer concentration of the spray solution accordingly, to keep the total application rate per unit of area.
• Avoid concentrated sprays, as they might scorch leaves.
• Plants in areas of humid climate tend to have thinner leaf cuticle, which make them more susceptible to phytotoxcity.
For this reason, spray concentrations must be considered more cautiously in these areas.


Foliar Spray for ricePreparation of tank mix
• Fill 1/4 - 1/3 of the spray tank with water. Add the entire amount of the fertilizer(s) and then fill up the tank with water.
• When preparing tank mix that includes pesticides, it is advisable:
- To keep the pH of the spray solution at level of 5.5 -6.5, to avoid alkaline hydrolysis of the pesticides.
Note: In general, Haifa’s foliar products are slightly acidic, requiring lower rates of acid to set the pH of the spray solution.
- To perform a compatibility test of the spray-mix prior to large-scale treatment.


The benefits of foliar crop nutrition


A complete range of foliar nutrition products


Haifa offers a selection of premium products for foliar application, all containing pure plant nutrients, free of chloride, sodium, and any other detrimental materials.

Poly-Feed™ Foliar is a range of fully water soluble NPK, high quality fertilizers for foliar application.
Poly-Feed™  soluble NPK formulae is designed for crop feeding with optimal,
balanced nutrition throughout the growth season.
Haifa Bonus - foliar nutrition
Haifa Bonus™ is a high-K foliar formula (13-2-44), based on Haifa’s Multi-K™ potassium nitrate.
Phosphate enrichment balances the nutritional value of Haifa Bonus™, and improves its compatibility with various agrochemicals.
Other Haifa Bonus™ formulae are available upon request.
Seaweed extracts: small addition that goes a long way. A variety of Poly-Feed™ formulas are available, enriched with 0.5% or 1% seaweed extracts. 
The seaweed extracts contain a wide range of nutrients, growth bio-stimulants and conditioners that act together to improve both plant development and soil properties. The seaweed extracts catalyze cellular metabolism and enhance cellular production of growth hormones, two processes that promote plant development.
- Better plant development
- Enriched plant nutrition 
- Improved plant strength
Additionally, the seaweed extracts help to increase the population of beneficial microbes in the soil. These microbes create a “biological barrier” between the plant and pathogens, and improve the natural tolerance of the plant.
More fertilizers for foliar application
  • Magnisal™ magnesium nitrate, 11-0-0+16MgO
  • Haifa MAP™ mono-ammonium phosphate, 12-61-0
  • Haifa MKP™ mono-potassium phosphate 0-52-34
  • Haifa ProteK™ potassium phosphate and phosphite, a systemic fertilizer higly recommended to enhance the plant’s resistance towards various diseases