ATP

K

Potassium

Potassium

Knowledge

Potassium Deficiencies:

Deficiency Symptoms

  • Tip and marginal leaf scorch – predominantly old mature foliage.
  • Interveinal chlorosis throughout the leaf.
  • Tendency to lodging – weak stalks in cereals.
  • Reduced root growth & reduction in yield.
  • Small and poorly colored fruits, lacking flavour.
  • Wilted appearance under dry conditions.

Factors Affecting Deficiencies

  • Dry weather, poor drainage and compaction are factors that inhibit root growth and therefore reduce the availability of Potassium.
  • Sandy soils with low CEC.
  • Level of exchangeable K.
  • Cold soils slow K conversion from exchangeable to soil solution K.
  • Low pH (<5 .5) can inhibit potassium uptake.
  • Plants require varying amounts of Potassium at different growth stages, particularly at later growth stages.
  • Magnesium, Manganese, and Calcium deficiencies become more pronounced with excess Potassium.
  • High levels of Calcium and/or Magnesium can limit Potassium uptake in some soils.

Potassium Recommended Products

Product Type Details
3-10-10
Macronutrient Soil
NRG KB
Macronutrient Foliar
NRG KS
Macronutrient Foliar
ReLeaf Canola
Macronutrient Foliar
ReLeaf Cereal
Macronutrient Foliar
MKP
Macronutrient Foliar
42PHI K Plus
Macronutrient Foliar
42PHI Cereal
Macronutrient Foliar

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