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Potassium Schoenite
(00:00:23:10)

ROLE OF POTASSIUM : 

Functions of Potassium: 

  1. Unlike nitrogen and phosphorus, potassium is not used in the structural synthesis of bio-chemically important molecules.
  2. Potassium is found within the plant cell solution and is used for maintaining the turgor pressure of the cell (meaning it keeps the plant from wilting).
  3. In addition, potassium plays a role in the proper functioning of stomata (cells located on the bottom of the leaf that open and close to allow water vapor and waste gases to escape) and acts as an enzyme activator.

Potassium deficiency: 

  1. Leaf tissue analysis shows that potassium levels are often close to those of nitrogen at around 3 to 5% on a dry weight basis.
  2. Plants that are potassium deficient typically show symptoms such as chlorosis followed by necrosis at the tips and along the margins of leaves.
  3. Since potassium is mobile within the plant, deficiency symptoms appear on older leaves.

In soilless growing media, potassium availability is not significantly influenced by pH. Potassium deficiency symptoms are most likely to appear when insufficient potassium is provided by fertigation. There are also situations where an induced potassium deficiency arises if calcium, magnesium or sodium levels are too high, but it is rare if a crop is fed with normal potassium rates.

Potassium Toxicity: 

Potassium toxicity does not exist per se. However, excessive levels of potassium can cause antagonisms that lead to deficiencies in other nutrients such as magnesium and calcium. If this occurs, it is best to test the growing medium and plant tissue for nutrient content and adjust the fertilization program or application rate.

Magnesium is a secondary macronutrient that is necessary to both plant growth and health. It is involved in several different processes, including photosynthesis, which nearly all living organisms are dependent on.

Magnesium (Mg), along with calcium and sulfur, is one of the three secondary nutrients required by plants for normal, healthy growth. Don’t be confused by the term “secondary” as it refers to the quantity and not the importance of a nutrient. A lack of a secondary nutrient is just as detrimental to plant growth as a deficiency of any one of the three primary nutrients (nitrogen, phosphorus and potassium) or a deficiency of micronutrients (iron, manganese, boron, zinc, copper and molybdenum). Furthermore, in some plants, the tissue concentration of magnesium is comparable to that of phosphorus, a primary nutrient.

Function of magnesium

Many enzymes in plant cells require magnesium in order to perform properly. However, the most important role of magnesium is as the central atom in the chlorophyll molecule. Chlorophyll is the pigment that gives plants their green color and carries out the process of photosynthesis. It also aids in the activation of many plant enzymes needed for growth and contributes to protein synthesis.

Deficiency: Magnesium is mobile within the plant so deficiency symptoms appear first in older leaves. The symptoms show up as yellow leaves with green veins (i.e. interveinal chlorosis). Magnesium availability is not significantly affected by the pH of a soilless growing medium. However, it does become more available for plant uptake as the pH of the growing medium increases. Magnesium deficiency often is caused by lack of application, but it can be induced if there are high levels of calcium, potassium or sodium in the growing medium.

Toxicity: Magnesium toxicity is very rare in greenhouse and nursery crops. High levels of magnesium can compete with plant uptake of calcium or potassium and can cause their deficiencies in plant tissue.

Specifications :

Potash content ( as K2O) percent by weight (on dry basis) minimum : 23.0 %

Magnesium oxide (as MgO) percent by weight maximum : 10.0 %

Sulphur (as S) : 15.0 %

Sodium (as NaCl) (on dry basis) percent by weight, maximum : 1.5%

Moisture percent by weight, maximum : 1.5% 

Dosage &  Application : 
Foliar application : Use 4-5 g/L of water
Fertigation: Use 1-3 kg/acre.

Note : 

  1. For fertigation, number of application depends on crop.
  2. Use dosage based on results of the soil analysis, crop and its growth stage.
  3. Recommended for all Crops.

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Description

ROLE OF POTASSIUM : 

Functions of Potassium: 

  1. Unlike nitrogen and phosphorus, potassium is not used in the structural synthesis of bio-chemically important molecules.
  2. Potassium is found within the plant cell solution and is used for maintaining the turgor pressure of the cell (meaning it keeps the plant from wilting).
  3. In addition, potassium plays a role in the proper functioning of stomata (cells located on the bottom of the leaf that open and close to allow water vapor and waste gases to escape) and acts as an enzyme activator.

Potassium deficiency: 

  1. Leaf tissue analysis shows that potassium levels are often close to those of nitrogen at around 3 to 5% on a dry weight basis.
  2. Plants that are potassium deficient typically show symptoms such as chlorosis followed by necrosis at the tips and along the margins of leaves.
  3. Since potassium is mobile within the plant, deficiency symptoms appear on older leaves.

In soilless growing media, potassium availability is not significantly influenced by pH. Potassium deficiency symptoms are most likely to appear when insufficient potassium is provided by fertigation. There are also situations where an induced potassium deficiency arises if calcium, magnesium or sodium levels are too high, but it is rare if a crop is fed with normal potassium rates.

Potassium Toxicity: 

Potassium toxicity does not exist per se. However, excessive levels of potassium can cause antagonisms that lead to deficiencies in other nutrients such as magnesium and calcium. If this occurs, it is best to test the growing medium and plant tissue for nutrient content and adjust the fertilization program or application rate.

Magnesium is a secondary macronutrient that is necessary to both plant growth and health. It is involved in several different processes, including photosynthesis, which nearly all living organisms are dependent on.

Magnesium (Mg), along with calcium and sulfur, is one of the three secondary nutrients required by plants for normal, healthy growth. Don’t be confused by the term “secondary” as it refers to the quantity and not the importance of a nutrient. A lack of a secondary nutrient is just as detrimental to plant growth as a deficiency of any one of the three primary nutrients (nitrogen, phosphorus and potassium) or a deficiency of micronutrients (iron, manganese, boron, zinc, copper and molybdenum). Furthermore, in some plants, the tissue concentration of magnesium is comparable to that of phosphorus, a primary nutrient.

Function of magnesium

Many enzymes in plant cells require magnesium in order to perform properly. However, the most important role of magnesium is as the central atom in the chlorophyll molecule. Chlorophyll is the pigment that gives plants their green color and carries out the process of photosynthesis. It also aids in the activation of many plant enzymes needed for growth and contributes to protein synthesis.

Deficiency: Magnesium is mobile within the plant so deficiency symptoms appear first in older leaves. The symptoms show up as yellow leaves with green veins (i.e. interveinal chlorosis). Magnesium availability is not significantly affected by the pH of a soilless growing medium. However, it does become more available for plant uptake as the pH of the growing medium increases. Magnesium deficiency often is caused by lack of application, but it can be induced if there are high levels of calcium, potassium or sodium in the growing medium.

Toxicity: Magnesium toxicity is very rare in greenhouse and nursery crops. High levels of magnesium can compete with plant uptake of calcium or potassium and can cause their deficiencies in plant tissue.

Specifications :

Potash content ( as K2O) percent by weight (on dry basis) minimum : 23.0 %

Magnesium oxide (as MgO) percent by weight maximum : 10.0 %

Sulphur (as S) : 15.0 %

Sodium (as NaCl) (on dry basis) percent by weight, maximum : 1.5%

Moisture percent by weight, maximum : 1.5% 

Dosage &  Application : 
Foliar application : Use 4-5 g/L of water
Fertigation: Use 1-3 kg/acre.

Note : 

  1. For fertigation, number of application depends on crop.
  2. Use dosage based on results of the soil analysis, crop and its growth stage.
  3. Recommended for all Crops.

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(00:00:23:10)”

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