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 |
Nutrient Knowledge Guide
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