Nutrients

N Nitrogen
P Phosphorus
K Potassium
Mg Magnesium
S Sulfur
B Boron
Cu Copper
Fe Iron
Mn Manganese
Zn Zinc

Cotton - Chlorosis

Symptoms
Younger leaves show uniform yellowing while leaf veins remain green and prominent for a while. With progressing deficiency the leaf blades fade completely.

Reasons
Manganese deficiency As symptoms of Mn, Zn and Fe deficiency are often difficult to distinguish, soil and plant testing is recommended.

Cotton - Chlorosis

Symptoms
Younger leaves show uniform yellowing while leaf veins remain green and prominent for a while. With progressing deficiency the leaf blades fade completely.

Reasons
Manganese deficiency As symptoms of Mn, Zn and Fe deficiency are often difficult to distinguish, soil and plant testing is recommended.

Cotton - Chlorosis

Symptoms
Younger leaves show uniform yellowing while leaf veins remain green and prominent for a while. With progressing deficiency the leaf blades fade completely.

Reasons
Manganese deficiency As symptoms of Mn, Zn and Fe deficiency are often difficult to distinguish, soil and plant testing is recommended.

Cotton - Deformation

Symptoms
Younger leaves show uniform yellowing while leaf veins remain green and prominent for a while. With progressing deficiency the leaf blades fade completely. Small yellowish dots appear, enlarge and turn necrotic brown with time. Leaves can be cupped down.

Reasons
Manganese deficiency As symptoms of Mn, Zn and Fe deficiency are often difficult to distinguish, soil and plant testing is recommended.

Cotton - Deformation

Symptoms
Younger leaves show uniform yellowing while leaf veins remain green and prominent for a while. With progressing deficiency the leaf blades fade completely. Small yellowish dots appear, enlarge and turn necrotic brown with time. Leaves can be cupped down.

Reasons
Manganese deficiency (right) As symptoms of Mn, Zn and Fe deficiency are often difficult to distinguish, soil and plant testing is recommended. (White dots on left leaf derive from biological pest control)

Manganese deficiency made worse by

  • Organic soils
  • Sandy soils
  • High pH
  • Cold wet periods
  • Fluffy soils

Manganese is important for

  • Improved crop health
  • More even and earlier maturity
  • Increased yields

Yara recommended fertilizers for Manganese

NUTRA-SPRAY MANZINC

NUTRA-SPRAY MANZINC

Cotton: 2 to 10 lb. per acre. First application applied prior to main bloom. Repeat as needed. Apply aerial applications in at least 5 gallons/acre and ground applications in at least 10 gallons/acre; however, when total application gallonage is 25 gallons per acre or less, DO NOT mix more than 1 lb. of this product per gallon of water.

Read more about NUTRA-SPRAY MANZINC

NUTRA-SPRAY ZM

NUTRA-SPRAY ZM

Cotton: 2 to 10 lb. per acre. First application applied prior to main bloom. Repeat as needed. Apply aerial applications in at least 5 gallons/acre and ground applications in at least 10 gallons/acre; however, when total application gallonage is 25 gallons per acre or less, DO NOT mix more than 1 lb. of this product per gallon of water.

Read more about NUTRA-SPRAY ZM