Citrus
  • Banana
  • Broccoli
  • Cabbage
  • Carrots
  • Cauliflower
  • Chili
  • Citrus
  • Lettuce
  • Maize
  • Mango
  • Oats
  • Oil Palm
  • Pepper
  • Potatoes
  • Raspberries
  • Rice
  • Strawberry
  • Sugarcane
  • Tobacco
  • Tomato

Potassium deficiency on orange 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

  • Larger leaf area maintaining through season
  • Shoot growth more vigorous
  • Fruit load increase/benifit to yield
  • Fruit are larger with better colour, skin texture and flavouring (more acidity)
  • Level of vitamin C increases