Prairie et Pâturage - Chlorosis
Symptômes
Older leaves show tip chloroses and dieback. Diffuse brown blotches disperse on the leaf blade and coalesce to further necrosis.
Raisons
Potassium deficiency
Though direct impact of potassium deficiency is only rarely observed, K appears to play an important role in tolerance of heat, drought and cold.
Prairie et Pâturage - Chlorosis
Symptômes
Older leaves show tip chloroses and necrosis, proceeding towards the leaf base.
Raisons
Potassium deficiency
Though direct impact of potassium deficiency is only rarely observed, K appears to play an important role in tolerance of heat, drought and cold.
Prairie et Pâturage - Growth retardation
Symptômes
Reduced growth in length.
Raisons
Potassium deficiency (right)
Though direct impact of potassium deficiency is only rarely observed, K appears to play an important role in tolerance of heat, drought and cold.
Prairie et Pâturage - Chlorosis
Symptômes
Older leaves show tip chloroses and dieback. Diffuse brown blotches disperse on the leaf blade and coalesce to further necrosis.
Raisons
Potassium deficiency (right)
Though direct impact of potassium deficiency is only rarely observed, K appears to play an important role in tolerance of heat, drought and cold.
Prairie et Pâturage - Chlorosis
Symptômes
Older leaves show tip chloroses and dieback. Diffuse brown blotches disperse on the leaf blade and coalesce to further necrosis.
Raisons
Potassium deficiency
Though direct impact of potassium deficiency is only rarely observed, K appears to play an important role in tolerance of heat, drought and cold.
Prairie et Pâturage - Chlorosis
Symptômes
Older leaves show tip chloroses and dieback. Diffuse brown blotches disperse on the leaf blade and coalesce to further necrosis.
Raisons
Potassium deficiency
Though direct impact of potassium deficiency is only rarely observed, K appears to play an important role in tolerance of heat, drought and cold.
Potassium deficiency aggravé par
- Acidic soils (low pH)
- Sandy or light soils (leaching)
- Drought conditions
- High rainfall (leaching)
- or heavy irrigation
- Heavy clay (illite) soils
- Soils with low K reserves
- Magnesium rich soils
Potassium est important pour
- Internal water regulation
- Vigorous growth and healthy foliage
- Required in large amounts
Yara a recommandé cet engrais pour Potassium
YaraMila EXTRAGRASS
Grass: Exact recommendation depends on soil analysis and nutrient management plan. Refer to your local Yara area manager for detailed recommendation.
En savoir plus YaraMila EXTRAGRASS
