We continuously conduct trials worldwide in different crops to test the efficiency of WUXAL® products. Find here some selected trials in some crops. Further trials not depicted in this section may be provided on request.

WUXAL® Boron Plus in Oilseed rape

Treatments: Control (no foliar fertilization), WUXAL® Boron Plus 2 x 2,25 l/ha at BBCH 31 and 62; 4 replications; Location:  Gotthun, Germany, 2017

WUXAL® Calcium in Apples

Treatments: Control (no foliar fertilization), Competitor product 6 x  6,6 l/ha, WUXAL® Calcium 6 x 5 l/ha, respectively starting 14 weeks before harvest; 3 replications; Conducted by Dienstleistungszentrum Ländlicher Raum Rheinpfalz, Rheinbach, Germany, 2016

WUXAL® K40, Microplant, 39N in Potatoes

Treatments: Control (Fertilization as done in all treatments), WUXAL®  K40  3 x 5 l/ha  at 2-week-intervals starting 2 weeks after tuber initiation ; WUXAL® Microplant  4 x 2 l/ha  + WUXAL® 39N 4 x 5l/ha at 2-week-intervals starting at tuber initiation ; Conducted  by Peracto New Zealand Limited, New Zealand, 2016-2017

WUXAL® Boron Plus, Top P, Ascofol in Corn

Treatments: Control (no foliar fertilization), WUXAL®  Top P 5 l/ha + WUXAL® Ascofol  2 l/ha at EC 14; WUXAL® Boron Plus  1,75 l/ha at EC 14; Conducted  by Raiffeisen Waren-Zentrale Rhein-Main eG, Kerken, Germany, 2017

WUXAL® P45 in Corn

Treatments: Control , WUXAL® P45 2 x 2 l/ha at 6-8 and 10-12-leaf stage;  62,5m2 were treated whereof 50m2 were harvested; Location:  Institut IHAK, Radzików, Poland, 2014

WUXAL® Terios Mn in Oat

Treatments: Control (no seed treatment),  WUXAL® Terios Mn seed treatment 150 ml / 100 kg seeds ; Conducted in Finland, 2017

WUXAL® Terios Zn in Corn

Treatments: Control (pesticide seed treatment as done in all treatments), WUXAL® Terios Zn seed treatment  400 ml / 100 kg seeds , Conducted by Kenya Seed company Ltd, Elgon Downs-Trans Nzoia County, Kenya, 2017

WUXAL® Terios Mn in Wheat

Treatments: Control (pesticide seed treatment as done in all treatments), WUXAL® Terios Mn seed treatment 200 ml / 100 kg seeds; Conducted  by University of Life Sciences, Poland, 2016

WUXAL® Terios + Grano in Wheat

Spring wheat; Treatments: Control (Pesticide seed treatment as done in all treatments), WUXAL®  Terios  seed treatment  150 ml / 100 kg seeds ; WUXAL® Grano 2 x  2 l/ha  at BBCH 39 and 55; Conducted  by Research Center of  Agriculture, Latvia, 2016

WUXAL® Microplant in Peas

Treatments: Control (no foliar fertilization), WUXAL®  Microplant 2 l/ha; 4 replications; Conducted by Centre Provincial Liégeois, Belgium, 2015-2016

WUXAL® Calcium in Apples

Treatments: Control (no post harvest treatment) ,  WUXAL® Calcium: Apples were dipped for 3 min. in a 1,5% solution post harvest ;  Conducted in South-Tyrol, Italy, and evaluated by the Research Centre for Agriculture and Forestry Laimburg, 2015

WUXAL® Terios in Spring barley

Treatments: Control (No seed treatment), Pesticide  seed treatment  200ml/ 100kg seeds, WUXAL® Terios  seed treatment 150ml/100kg seeds ; 4 replications;  Conducted by Hauptsaaten für die Rheinprovinz, Morenhoven, Germany, 2014

WUXAL® Top P + Sulphur in Corn

Treatments: Control (no foliar fertilization), WUXAL® Top P  4 l/ha  at 5-leaf stage, WUXAL® Sulphur 4 l/ha  at 8-leaf stage ; 3 replications;  Conducted at Krauchenwies,  Germany, 2014

WUXAL® Terios Mn in Barley

Treatments: Control (no seed treatment), WUXAL® Terios Mn seed treatment 200 ml / 100 kg seeds; Conducted  by  the Chamber of Agriculture North Rhine Westfalia, Münster, Germany, 2013-2014

WUXAL® Terios Zn in Corn

Treatments: Control  (no seed treatment), WUXAL® Terios Zn seed treatment 500 ml / 100 kg seeds; Conducted by University of Lublin, Poland, 2012

WUXAL® Ascofol in Cucumbers

Treatments: Control (no foliar fertilization), WUXAL® Ascofol  4 x 2,5 l/ha;  Competitor product 4 x 3 l/ha at opening of the first flower  on the main stem & afterwards in 3 week intervals;  Cumulated yields of  4 pickings  of the plot (25,2 m2);  6 replicates; Location: Hungary, 2010

WUXAL® Ascofol in Apples

Treatments: Control (no foliar fertilization), WUXAL® Ascofol 1% (10 l/ha )12 days after full bloom;  Conducted by the Austrian Research Station for Fruit Science and Viticulture, Haidegg, Austria, 2011

WUXAL® Aminoplant in Corn

Treatments: Control (no foliar fertilization) , WUXAL® Aminoplant 2 l/ha at 4-leaf stage; Conducted by IUNG PIB Rolniczy Zaklad Doswiadczalny "Kepa" in Pulawy, Poland, 2011

WUXAL® Sulphur in Oilseed rape

Treatments: Control (no foliar fertilization), WUXAL® Sulphur : 5 l/ha  at EC 34 (begin of stem extension) and  EC 52 (bud stage); Conducted by N.U. Agrar, Langenstein, Germany, 2010

WUXAL® Grano in Wheat

Treatments: Control (no foliar fertilization), WUXAL® Grano 1 x  4 l/ha  at BBCH 37-39, WUXAL® Grano 2 x  2 l/ha  at BBCH 37-39 and 55-59; Conducted  by  University of Lublin, Poland, 2012

WUXAL® Zinc in Corn

Treatments: Control (no foliar fertilization), WUXAL® Zinc 2 l/ha at 6-8-leaf stage; GJNEL = Giga joule net energy for lactation; Conducted by RWZ Raiffeisen, Germany, 2009

WUXAL® Zinc in Tomato

Treatments: Control (no foliar fertilization), WUXAL® Zinc  2x 0.3%  at fortnight intervals starting shortly before first bloom; Conducted by Winska-Krysiak, Poland, 2005

WUXAL® Macromix in Corn

Treatments: Control (no foliar fertilization), WUXAL® Macromix 2 x 2l/ha  or 2 x 4 l/ha at 5-6 and 8-10 leaf stage;  Conducted by Institute of Agriculture, Ukraine, 2007

WUXAL® Boron in Sugar beet

Treatments: Control (no foliar fertilization), WUXAL® Boron  2 x 2 l/ha at 4-6-leaf stage and row closure ; Location:  Kiev, Ukraine

WUXAL® Macromix in Wheat

Treatments: Control (no foliar fertilization), WUXAL® Macromix 2,5 l/ha at BBCH 31; Average of three different trial sites;  Conducted by Institute of Soil cultivation and Plant production, Ukraine, 2008

WUXAL® Aminocal in Apples

Treatments: Control (no foliar fertilization), Calcium chloride 4 x 1 %, WUXAL® Aminocal 4 x 0,5 % (10 l/ha), respectively  at 14-day-intervals starting at the beginning of august;  Location:  Leuggern, Switzerland, 1997-1998

WUXAL® K40 in Melon

Treatments: Control (no foliar fertilization) , WUXAL®  K40 3 x 5 ml/l sprayed on leaves and fruit until run-off starting 5 days after anthesis  and continued at fortnight intervals; Location: Greenhouse, Haut-Poitou, France, 2003

WUXAL® K40 in Riesling vine

Treatments: Control (no foliar fertilization) , WUXAL®  K40 3 x 5 l/ha at veraison and  2x afterwards; Conducted by Vinery Koegler, Eltville, Rheingau, Germany

WUXAL® Microplant in Wheat

Treatments: Control (no foliar fertilization) , WUXAL®  Microplant 1 l/ha at stem elongation; Conducted by Institute for Plant Breeding & Genetics, Odessa, Ukraine, 2006

WUXAL® Top P in Apples

Treatments: Control (no foliar fertilization), WUXAL® Top P : 2 sprays with 0.4% at the end of October and start of January; Conducted by Institute of Fruit Science, University of Talca, Chile

WUXAL® Top P in Potatoes

Treatments: Control (no tuber treatment), WUXAL® Top P : tuber treatment  with 5 l/ha;  Conducted by N.U. Agrar, Regensburg, Germany, 2004

WUXAL® Ascofol in Apples

Reduced incidence of Gloeosporium rot in apple cv. Elstar after preventive treatments with Wuxal Ascofol

Treatments: Control (no foliar fertilization), WUXAL® Ascofol: 7 treatments with 0,3% between 16.04 and 08.07.2002; Conducted by SLVA Fruit Science & Viticulture, Weinsberg, Germany, 2002

WUXAL® Calcium in Apples

Treatments: Control (no foliar fertilization), Calciumnitrate 6  x 0,5 kg/hl, WUXAL® Calcium 6 x 0,2 l/hl ;  Conducted by INTA Argentina, Argentina, 1999

WUXAL® Calcium in Apples

Treatments: Control (no foliar fertilization), WUXAL® Calcium 4 x 0,4% ; Conducted by University of Warsaw, Poland

All products

Boron Plus











Top P




Terios Mn

Terios Zn

All crops




Oilseed rape

Sugar beet









Know How

Foliar Fertilizers offer:

  • Rapid nutrient supply
  • High nutrient efficiency
  • Reduced soil pollution
  • Improvement of spray mixture features

Foliar Fertilization is recommended when:

  • Nutrient absorption is inadequate or uncertain from the soil
  • Nutrient demand of the plant is higher than nutrient supply by the soil-root system, especially during critical stages
  • Nutrient distribution within the plant is limited
  • Nutrient deficiencies are already visible

Protect your yield

Nowadays extreme weather conditions more and more represent extreme stress conditions for crops. WUXAL® supports your crops in the best way!

High quality and well-balanced WUXAL® Foliar Fertilizers provide your crops individually with all required nutrients and enhance their ability to pass critical stages. Well-nourished plants will be able to ensure high yield levels, even under difficult conditions.

As yield and quality may be restricted by the lack of one single nutrient, it is important to support your crops with a well balanced nutrient range.

Nutrient Deficiency

Foliar nutrition is a multifunctional recovery tool. It is the right choice when deficiency symptomes are noted. Due to the fast nutrient uptake, rapid correction of nutrient deficiencies is possible.

Nitrogen (N)

Phosphorus (P)

Potassium (K)

Calcium (Ca)

Magnesium (Mg)

Sulphur (S)

Boron (B)

Copper (Cu)

Iron (Fe)

Manganese (Mn)

Molybdenum (Mo)

Zinc (Zn)


  • Component of amino acids, nucleic acids, proteins, enzymes, chlorophyll and phytohormones
  • Stimulates vegetative growth


  • Pale green chlorosis due to chlorophyll decomposition
  • Low tillering rate and reduced growth


  • Regulates energy metabolism
  • Important constituent of cell membranes and nucleic acids
  • Promotes root growth and accelerates ripening
  • Improves firmness, red surface colour and storability of fruits


  • Stunted and dark green plants
  • Purpling of stem, petiole and under side of the leaves


  • Improves osmotic pressure of cells
  • Regulates water retention
  • Enhances resistance to frost and drought
  • Promotes sugar production and storability

Deficiency symptoms

  • Scorching and/or necrosis progressing from the leaf margin to the midrip
  • Slow growth and poor root system development
  • Crops are less resistant to moisture stress and diseases


  • Responsible for structural and physiological stability of plant tissue
  • Promotes cell division (fruit size) and cell wall formation
  • Prevents physiological disorders of fruit and prolongs its shelf life


  • Necrosis around the base of the leaves and death of the growing regions of roots and leaves
  • Blossom-end rot of tomato, tip burn of lettuce, blackheart of celery, bitter pit of apple


  • Structural part of the chlorophyll molecule - stimulates photosynthesis
  • Activates more emzyme systems than any other nutrient


  • Interveinal chlorosis that can turn into necrosis
  • Raised puckered surface


  • Constituent of some amino acids and hence of proteins
  • Ingredients of secondary metabolites like Glucosinolates - responsible for the unique taste of many food plants


  • Overall yellow chlorosis retaining some green colour, much more uniform over the entire plant compared to nitrogen
  • Reddish veins and petioles with brown lesions and/or necrotic spots


  • Important for cell wall stabilization
  • Improves sugar production and transport
  • Promotes pollen fertility and fruit set
  • Important for auxin metabolism


  • Light chlorosis of leaves
  • Abnormal growth, eventually necrosis, on the youngest leaves and meristematic tissue
  • Heart rot in sugar beet


  • Involved in sugar and protein production
  • Important for photosynthesis
  • Improves plant resistance to disease


  • Light overall chlorosis
  • Reduced, stunted or distorted young growth


  • Important for chlorophyll formation
  • Promotes photosynthesis and protein metabolism
  • Involved in the respiration chain


  • Strong chlorosis at the leaf base
  • Starts as an interveinal chlorosis and ends as a totally bleached leaf


  • Extremely important for photosynthesis and N-metabolism
  • Improves green ground colour of fruit
  • Improves resistance to fungal diseases


  • Light interveinal chlorosis with stunted growth
  • Necrotic areas along the veins


  • Essential for activation of nitrate reductase
  • Key to nitrogen fixation in legumes


  • Mottled spotting along with some interveinal chlorosis
  • Whiptail appearance


  • Stimulates a series of important enzymes
  • Important for CO2-fixation and plant growth regulator synthesis


  • Chlorosis in the interveinal areas of young leaves
  • Stunted growth in leaf and plant growth

Foliar Absorption
and Transport Mechanisms

Before being assimilated, a nutrient must be absorbed by the leaf or fruit tissue. Fundamental steps of foliar nutrient absorption are as follows:

  • Penetration through the cuticle. The cuticle is the first
    and most limiting barrier to foliar nutrient uptake.
  • Penetration through the epidermal cell wall.
  • Nutrient uptake into the cells.
  • Distribution inside the plant as a function of nutrient mobility.

Efficient absorption depends on good wetting of the leaf surface, on the pH of the spray solution and on many other parameters. The quality and the nutrient ratio of the formulation will determine absorption efficacy and agronomic performance. WUXAL® Foliar Fertilizers are equipped with special additives favoring excellent wetting, rain fastness and penetration of the nutrients involved. WUXAL® products are formulated in such a way that they remain well compatible with most pesticides' active ingredients.


With about 70 partner companies all over the globe we cultivate a long-standing and strongly linked relationship, built on trust, know-how and responsibility.

WUXAL® and all its partners strive for a win-win relationship. Products are marketed through our distributors who are carefully selected and share the same values and philosophies.

Our partners are trained and advised by our staff in order that growers always can benefit from WUXAL®’s high standard of technical and commercial support.

If you are already an official WUXAL® partner, you can login into the WUXAL® Member Area here:



Agriculture in the 21st century faces multiple challenges: it has to produce more food and fibre to feed a growing population with a smaller rural labour force, more feedstocks for a potentially huge bioenergy market, contribute to overall development in the many agriculture-dependent developing countries, adopt more efficient and sustainable production methods and adapt to climate change.
WUXAL® applications and the development of new perfectly adapted formulas are an integral part of it.
Our own development department is the key to sustainable and highly efficient formulations, perfectly adjusted to the crop’s requirements and your special needs.

  • highest utility, efficacy and quality
  • outstanding product handling
  • second to none shelf life


In the completely new laboratories the staff focuses on permanent quality control accompanying the day to day production process for state-of-the-art WUXAL® products.

  • nutrient analysis
  • heavy metal analysis
  • pH and density check
  • rheological measurements
  • compatibility tests

The new lab is equipped with up-to-date analytical instruments, such as ICP-OES facilities, high-end capabilities for rheological measurements and Kjeldahl N-analytics. Therefore, highest quality standards can be guaranteed.


Nutrient deficiency symptoms?
Use the WUXAL® Mobile App!

The quick and simple tool for:

  • diagnosis of nutrient deficiencies
  • compatibilities with plant protection products
  • information about WUXAL® products
  • application rates and crop recommendations
  • up-to-date information

The WUXAL® Mobile App is running both offline and online to ensure usability. All-round secure, with WUXAL®.

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