Competence in
natural raw materials
from renewable
Mg 4%


Product key points

  • Liquid proteinate with Magnesium complexed by biological active amino acids
  • Rapid leave penetration prevents magnesium deficiency and stimulates the greening of tissues
  • Natural balanced amino acids composition, no synthesis amino acids
  • “Made in the European Union”
  • Product suitable for use in Organic Farming

Product description

BIO-PROTAN®Magnesium is a liquid compound of magnesium and organic molecules obtained by hydrolysis of natural protein. The unique formulation with amino acids (the organic molecules and “building blocks” of protein) corrects magnesium deficiencies stimulating simultaneously the metabolism of the plant.

BIO-PROTAN®Magnesium is suitable for both, foliar and soil application; however, we specially recommend foliar spraying due to the complexing and carrier properties of free amino acids formulated in the compound which are leading to the rapid and efficient leaf penetration of magnesium.

Amino acids are natural chelates able to ligate (“link”) with microelements and form a metal complex. Free amino acids are also very effective in conveying the linked microelements through the cells to the sites of utilization helping to overcome chemical and physical barriers of the leaf cuticle, the cell wall and the lymphatic system. Combining magnesium and amino acids in foliar spray solutions leads to an increase of treatment efficacy and reduces the fertilizer application dose.

BIO-PROTAN®Magnesium amino acids applied by soil fertigation within a particular pH range preserve the magnesium mineral from insolubility and soil regression keeping it available in the metabolic form mainly used by the plant.

BIO-PROTAN®Magnesium prevents physiological disorders caused by magnesium deficiency like pome fruit leaf drop, grape stalk necrosis, basal leaves internerval chlorosis in tomato and vegetable crops. Magnesium proteinate stimulates the greening and biological activity of the foliage and supports the chlorophyll synthesis.

BIO-PROTAN®Magnesium is homogeneous, fully water-soluble and without precipitation that could clog filters and nozzles of the irrigation system.

Guaranteed analysis (%w/w)

Organic nitrogen 2,0%
Ammonium nitrogen 0,2%
Total nitrogen (N) 2,2%
Organic carbon (C) 6,5%
Magnesium (MgO) 4%
Complexing agents
Total amino acids 12%
Total amino acid / peptides min. 148 g/L
pH-value (1:10) 5 - 6
Density 1,13 - 1,15 kg/L

Directions for use

L/ha / application
L/ha / application
Fruit trees, wine and table grape from pre-flowering to fruit enlargement,
2-4 applications every 10-15 days
3-5 L/ha 5-10 L/ha
Vegetable and industrial crops from fruit set to ripening every 7-10 days 3-5 L/ha 5-10 L/ha
Greenhouse crops from fruit set to fruit enlargement (vegetable crops) or during the whole crop cycle (leafy vegetables and flower crops), 2-4 applications every 10-15 days 150-250 ml/hl 5-10 L/ha

Dilute BIO-PROTAN®Magnesium before using it on plants. In case of inexperienced handling we recommend a preliminary test on small areas before extending the treatment to the entire culture. The dosages advised are purely indicative and may vary depending on crop vegetative cycle, climatic and soil conditions and average yields expected.

Mix BIO-PROTAN®Magnesium with all common formulations except with products based on sulphur. Do not mix with mineral oils and Bordeaux mixtures since the combination with free amino acids improves the absorption rate and can result in phytotoxicity. Avoid the use with insecticides, Dodine, Fosetyl aluminum, polysulfides, Triforine and not selective herbicides.

Handling and storage

  • Undiluted product can be stored at room temperature and well-closed original packaging for minimum 2 years.
  • In the case of longer storage, shake well before use.


Size Units/pallet Pallet dim. [cm] Net weight Gross weight
5 L / 5.75 kg 120 drums/pal. 120 x 80 x H170 690 kg 760 kg
20 L / 23 kg 48 drums/pal. 120 x 100 x H140 1.104 kg 1.170 kg
200 L / 230 kg 4+4 drums/pal. 114 x 114 x H210 1.840 kg 1.950 kg
1.000 L / 1.150 kg IBC 120 x 80 x H120 1.150 kg 1.215 kg
24.000 kg in bulk 24.000 kg
Protan AG
Runkelsstrasse 38, FL-9495 Triesen
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