Potassium deficiency-Sugarcane

Change crop

Nutrients

Sugarcane - Chlorosis

Symptoms
Symptoms start with chlorosis and necrosis on the tips of older leaves and proceed downwards on either side or only on one side of the midrib. Furthermore, a dark strip-like discoloration of the midrib can be found.

Reasons
Potassium deficiency

Sugarcane - Chlorosis

Symptoms
Symptoms start with chlorosis and necrosis on the tips of older leaves and proceed downwards on either side or only on one side of the midrib.

Reasons
Potassium deficiency

Potassium deficiency made worse by

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 is important for

Productive growth, i
e
quick canopy closure, strong stalk development, big root mass
High yield and sugar quality
Essential for plant water use efficiency
Improves plant tolerance to pests, diseases and to lodging

Yara recommended fertilizers for Potassium

YaraMila 16-16-16

Sugarcane: At pre-planting, apply 250kg/ha. At 30 days after transplanting, apply 200kg/ha. At 60 days after transplanting, apply 200kg/ha.