Magnesium Sulphate


Product characteristics

Magnesium Sulphate

  • Magnesium Sulphate 16% is a white crystalline Magnesium Sulphate Heptahydrate.
  • Free flowing.
  • Used for foliar feeding and for fertigation purposes
  • Compatible with most water-soluble fertilizers

Dosing information

G / 1.000 l stock solution SO3 MgO Mg
In g / 1.000 l or ppm In g / 1.000 l or ppm In g / 1.000 l or ppm
100 32 16 9.7
130 41 20 12.6
160 51 25 15.5
190 60 30 18.4
210 67 33 20.3

The table above represents the amount of nutrients in the stock solution. The fi nal concentration in the irrigation water depends on the amount of nutrients in the stock solution, the injection ratio as well as the amount of nutrients in the water used.

Dosing instructions | Fertigation

Crop Application date Total dosage in kg / ha
Fruit trees As of end of flowering stage 150 – 250 kg
Vineyards As of end of bud opening stage until main vegetative growth. 100 – 150 kg
Vegetables As of vegetative growth until beginning of fruit setting 150 – 300 kg

Dosing instructions | Foliar

Crop Application date Dosage in kg / application* Concentration of spray solution (w/v)
Fruit trees 3 – 4 applications:
- After flowering
3 – 5 kg/hа 0.5%
Vineyards 3 – 4 applications:
- To prevent drying of stalk
- 4 – 12 kg/ha - 1.0 – 1.5%
Vegetables 1 – 3 applications:
- During the vegetative stage
- 5 – 10 kg/ha - 1.0%
Arable crops:
- Corn
- Rape
- Sugar beet
1 – 2 applications:
- As of 5 leaves stage
1 – 2 applications:
- Till flowering stage
2 – 3 applications:
- Until mid-summer
- 3 – 6 kg/ha - 1.0 – 1.5%

Packaging

Available in packages of 1.000 kg and 25 kg


Function of Magnesium

Mg is a major constituent of the chlorophyll molecule and is therefore actively involved in photosynthesis. Furthermore, Magnesium is a co-factor in several enzymatic reactions that activate the phosphorylation processes (a chemical reaction resulting in the formation and creation of ATP, among others). Magnesium is required to stabilize ribosome particles (components of cells that make proteins from amino acids) and it also helps to stabilize the structure of nucleic acids (essential biological molecules). Magnesium enhances the movement of sugars within a plant.


Deficiency of Magnesium

Because Magnesium travels fast, interveinal chlorosis first appears in older leaves, with necrosis developing in the highly chlorotic tissue. In its progressed form, symptoms may superficially resemble potassium deficiency. The first symptoms are mottled chlorotic areas in the interveinal tissue. The interveinal laminae tissue expands more than the other leaf tissues. The result is a raised puckered surface, with the top of the puckers progressively going from chlorotic to necrotic tissue. In the Brassica family, tints of orange, yellow or purple can occur. Magnesium deficiency is common in acid soils and in soils receiving high amounts of Potassium fertilizer or Calcium.
Phosphorus-deficiency-on-tomato-leaf oilseed_rape_leaf2