- 6%

Magnesium Sulphate Agricultural Fertilizer -50kg

16,000 15,000

The magnesium sulphate fertilizer is specially produced to easily correct or prevents magnesium deficiencies for all types of crops and soil conditions. The fertilizer is best used to prevent magnesium deficiencies before or during planting, however, it can also be used to correct growth problems during the growing season.

Product Features:

  • Active Ingredient: Magnesium Sulfate Heptahydrate (MgSO4.7H₂O).
  • Mode of action: Orchids mainly + vegetables (soil dependent).
  • Dosage: 15 ml sprayer
    Packaging: 50 Kg
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Magnesium Sulphate

Like all secondary nutrients, plants do not need large amounts of magnesium to thrive, but an absence of the nutrient will cause stunted growth. Our magnesium sulphate fertilizer makes it easy to correct magnesium deficiencies at planting, or at any time during the growing season. Plants do not need large amounts of magnesium to thrive, but an absence of this important nutrient will cause stunted growth.

Roles of Magnesium Sulphate

  • Magnesium is a key component of chlorophyll, Therefore without magnesium, the plant cannot produce chlorophyll, which will cause photosynthesis to suffer.
  • This fertilizer is best used to prevent magnesium deficiencies before or during planting, however, it can also be used to correct growth problems during the growing season.
  • Magnesium also plays a role in the transfer and production of sugars, starches, fats, and oils within the plant. This means a lack of magnesium will cause starchy vegetables, sugary fruits, and oilseeds or nuts to lose their shape and flavor.
  • Magnesium is mobile in plants, which allows the plant to continue growing normally.
  • Magnesium is the central core of the chlorophyll molecule in plant tissue. Thus, if it is deficient, the shortage of chlorophyll results in poor and stunted plant growth.
  • Magnesium also helps to activate specific enzyme systems. Enzymes are complex substances that build, modify, or break down compounds as part of a plant’s normal metabolism.

However, it is ideal to test the soil before planting and test tissue from the previous harvest to determine magnesium content and uptake. If you discover a magnesium deficiency, our magnesium sulphate fertilizer can be easily applied with other nutrients to correct it quickly.

Benefits of Using Magnesium Sulphate Fertilizer

  • Corrects or prevents magnesium deficiency, stunted growth, and reduced yields.
  • Promotes chlorophyll production.
  • Promotes the production and transfer of sugars, starches, oils, and fats.
  • Easy to apply at planting or throughout the growing season.
  • Easy to apply with other nutrients.

Chemical Composition of Magnesium Sulphate

  • MgSO4.7H₂O: 99.5% min
  • MgO: 16.0% min
  • S: 12.5% min
  • Chlorides: 0.03% max
  • Fe: 0.0015% max
  • Heavy metals: 0.001% max
  • As: 0.0002%  max
  • Water soluble: 0.01% max
  • pH value: 4.5-6.5
  • Size: 0.1-1mm (90% min).

Precaution Notice

  • It is ideal to test the soil before planting and test tissue from the previous harvest to determine magnesium content and uptake.
  • After testing, if you discover a magnesium deficiency.
  • Therefore, care should be taken in identifying a Magnesium deficiency. Use plant analysis to be sure.

Magnesium in the soil

Magnesium is abundant in the earth’s crust. It is found in a wide variety of minerals. Magnesium becomes available for plant use as these minerals weather or break down. The majority of the soils in western Minnesota have naturally high levels of Mg. For the acid soils of the eastern counties, the addition of dolomitic limestone in the crop rotation, when needed, should supply adequate Mg for crop growth.

Magnesium Deficiency symptoms

Magnesium is a mobile element in the plant and deficiency symptoms will occur first in the oldest leaves.

1. Corn

  • The loss of a healthy green color can be the first indication of a Magnesium deficiency.
  • The color loss reflects the shortage of chlorophyll in the plant.
  • As the deficiency becomes more severe, the area between the veins of the leaves becomes yellow while the veins stay green.
  • In corn, there is a definite striping the full length of the leaf, appearing first on the lower leaves.

2. Potatoes

  • In potatoes, the loss of the green color begins on the tips of the lower leaves when there is a mild Magnesium deficiency.
  • When the deficiency is more serious, the yellowing progresses between the veins toward the center of the leaf.
  • In the advanced stages of Mg deficiency, leaf areas between the veins show small brown dead spots.
  • Diseases, herbicide damage, and environmental factors also cause leaves to die prematurely.

Predicting the need for magnesium

  • Since Mg is a mobile element in the plant, the concentration of Mg usually decreases from the top to the bottom of the plant.
  • Also, the Magnesium concentration usually decreases as the plant approaches maturity.
  • It is, therefore, important to indicate the age of the plant and the part of the plant that was sampled when samples are submitted for measurement of Magnesium in plant tissue.
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