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  • Magnesium sulphate (granulated) MgO-21% SO3-36%
Magnesium sulphate (granulated) MgO-21% SO3-36%
Magnesium sulphate (granulated) MgO-21% SO3-36%
It is a universal granulated fertilizer aimed at quick soil enriching with easy to assimilate magnesium and Sulphur. It is fully water soluble fertilizer, which can be applied in granules to the soil. It can also be a component of solutions and tank mixtures, which are used for crops and all types of soils.
Packaging Big bag 500 kg
Country of Origin Poland
Manufacturer Siarkopol
Formula Додати значення
Properties \ Benefits
  • One of the best magnesium fertilizers
  • Fertilizer is the most effective on acid, light, neutral, low magnesium and Sulphur soils
  • It is not toxic to underground seedlings
  • Depresses negative impact of aluminium
More details
Download quality certificate
Properties \ Benefits
  • One of the best magnesium fertilizers
  • Fertilizer is the most effective on acid, light, neutral, low magnesium and Sulphur soils
  • It is not toxic to underground seedlings
  • Depresses negative impact of aluminium
More details

Principles of application

Doses of fertilizer are calculated in accordance with plant’s magnesium demand and its presence into the soil, soil pH. Fertilizer is applied prior to basic soil tillage such as ploughing and cultivation. Magnesium sulphate can also be side/top dressed with mineral fertilizer spreaders. It does not work in dry soils. In case of favorable condition and sufficient soil moisture, fertilizer begins to decompose rapidly and is intensively absorbed by the root system of plants. Fertilizer mixed with soil uniformly distributes on surface so that magnesium and Sulphur accessibility to plant increases in any moisture conditions. Magnesium sulphate granules placed on surface dissolve when humidity is sufficient. Magnesium and sulphate become more accessible to plants only after migration down the soil profile. In such case  Nutrition elements losses do not occur, but their efficiency is also minimal. Side dressing under winter crops is applied in early spring over frozen soil. Nitrogen fertilizers can be applied separately from magnesium sulphate. In gardening, side dressing is applied in spring, before intensive resumption of growing period or after harvesting. Foliar application is to be made for preventive purpose of magnesium or Sulphur shortage.

Granulated magnesium sulphate can be applied to fruit and berry crops through drip irrigation systems. Solution concentration should not exceed 0,2%. Application conditions – prevention of magnesium deficiency and its reducing.

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Recommended application rates Magnesium sulphate (granulated) MgO-21% SO3-36% for various crops.
Winter cereals
Winter cereals
Side/top dressing 20-250 kg/ha
Spring cereals
Spring cereals
Basal application 150-250 kg/ha. Side/top dressing 20-200 kg/ha
Soybean
Soybean
Basal application 50-75 kg/ha
Corn
Corn
Basal application 100-350 kg/ha. Side/top dressing 50-150 kg/ha
Sugar beet
Sugar beet
Basal application 200-300 kg/ha. Top/side dressing 50-100 kg/ha
Sunflower
Sunflower
Basal application 100-250 kg/ha. Top/side dressing 50-100 kg/ha
Winter rapeseed
Winter rapeseed
Top/side dressing 50-250 kg/ha
Potato
Potato
Basal application 100-200 kg/ha
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