Nutrients

N Nitrogen
P Phosphorus
K Potassium
Mg Magnesium
Ca Calcium
S Sulphur
B Boron
Cu Copper
Fe Iron
Mn Manganese
Mo Molybdenum
Zn Zinc

Raspberries - Chlorosis

Symptoms
Mainly mature leaves display interveinal chlorosis with little white spots distributed irregularly on leaf blades. Starting from the margins leaves show a dull tint, wilt and become necrotic. Canes may get completely scorched. Fruit ripening is delayed.

Reasons
Calcium deficiency Calcium deficiency often occurs as a result of its low mobility in the soil and in the plant. The recommended leaf level is 0.6-2.5%.

Raspberries - Chlorosis

Symptoms
Mainly mature leaves display interveinal chlorosis with little white spots distributed irregularly on leaf blades. Starting from the margins leaves show a dull tint, wilt and become necrotic. Canes may get completely scorched. Fruit ripening is delayed.

Reasons
Calcium deficiency Calcium deficiency often occurs as a result of its low mobility in the soil and in the plant. The recommended leaf level is 0.6-2.5%.

Raspberries - Spots

Symptoms
Mainly mature leaves display interveinal chlorosis with little white spots distributed irregularly on leaf blades. Starting from the margins leaves show a dull tint, wilt and become necrotic. Canes may get completely scorched. Fruit ripening is delayed.

Reasons
Calcium deficiency Calcium deficiency often occurs as a result of its low mobility in the soil and in the plant. The recommended leaf level is 0.6-2.5%.

Raspberries - Chlorosis

Symptoms
Mainly mature leaves display interveinal chlorosis with little white spots distributed irregularly on leaf blades. Starting from the margins leaves show a dull tint, wilt and become necrotic. Canes may get completely scorched. Fruit ripening is delayed.

Reasons
Calcium deficiency Calcium deficiency often occurs as a result of its low mobility in the soil and in the plant. The recommended leaf level is 0.6-2.5%.

Raspberries - Discolouration

Symptoms
Mainly mature leaves display interveinal chlorosis with little white spots distributed irregularly on leaf blades. Starting from the margins leaves show a dull tint, wilt and become necrotic. Canes may get completely scorched. Fruit ripening is delayed.

Reasons
Calcium deficiency Calcium deficiency often occurs as a result of its low mobility in the soil and in the plant. The recommended leaf level is 0.6-2.5%.

Raspberries - Discolouration

Symptoms
Mainly mature leaves display interveinal chlorosis with little white spots distributed irregularly on leaf blades. Starting from the margins leaves show a dull tint, wilt and become necrotic. Canes may get completely scorched. Fruit ripening is delayed.

Reasons
Calcium deficiency Calcium deficiency often occurs as a result of its low mobility in the soil and in the plant. The recommended leaf level is 0.6-2.5%.

Raspberries - Chlorosis

Symptoms
Mainly mature leaves display interveinal chlorosis with little white spots distributed irregularly on leaf blades. Starting from the margins leaves show a dull tint, wilt and become necrotic. Canes may get completely scorched. Fruit ripening is delayed.

Reasons
Calcium deficiency (right) Calcium deficiency often occurs as a result of its low mobility in the soil and in the plant. The recommended leaf level is 0.6-2.5%.

Calcium deficiency made worse by

  • Acidic soils
  • Sandy or light soils (leaching)
  • Acid peat soils
  • Soils rich in sodium
  • Soils rich in aluminium
  • Drought conditions
  • Fruit high in nitrogen or potassium
  • Large fruit

Calcium is important for

  • Structure, stability and permeability of cell membranes
  • Regulation of enzyme systems
  • Alongside potassium responsible for regulation of stomata
  • Gives plants more resistance to biotic and abiotic stress
  • Proper development of leaves and fruit
  • Prevention of post harvest decay