Nutrients

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

Strawberries - Chlorosis

Symptoms
Symptoms begin at young leaves. At first leaves turn pale green. With progressing deficiency they turn uniformly yellow.

Reasons
Sulfur deficiency. Sulfur deficient leaf blades contain less than 100 ppm sulfate, dry basis. Yellowing also appears with nitrogen and molybdenum deficiencies.

Sulfur deficiency made worse by

  • Acidic soils
  • Light, sandy soils (leaching)
  • Low organic matter
  • Poorly aerated soils (waterlogged soils
  • ) Areas with low industrial emissions

Sulfur is important for

  • Improved crop development

Yara recommended fertilizers for Sulfur

YaraVera® AMIDAS® 40-0-0

YaraVera® AMIDAS® 40-0-0

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NUTRA-PHOS CALZINC

NUTRA-PHOS CALZINC

Strawberry (field grown): 5 to 10 lb. per acre per application. Application after fruit starts to color may leave a visible residue. 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.

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SULFATE OF POTASH - GRANULAR 0-0-50

SULFATE OF POTASH - GRANULAR 0-0-50

Strawberry (field grown): Apply up to 100-300 lbs Sulfate of Potash/acre according to soil analysis throughout the growing season. Utilizing Sulfate of Potash from Yara for part or all of your potassium needs provides your crop with water soluble potassium along with sulfate sulfur. Consult with your agronomist for local recommendations.

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