Sója - Necrosis
Sintomas
Ca deficient plants show reduced leaf expansion, primary leaves are often cup-shaped when emerged. Brown spots on young leaves and premature leaf senescence occur.
Causas
Calcium deficiency
Calcium deficiency is most common in acid, sandy soils low in organic matter.
Sója - Deformation
Sintomas
Ca deficient plants show reduced leaf expansion, primary leaves are often cup-shaped when emerged. Brown spots on young leaves and premature leaf senescence occur.
Causas
Calcium deficiency
Calcium deficiency is most common in acid, sandy soils low in organic matter.
Sója - Necrosis
Sintomas
Small brown spots, coalescing to interveinal necrosis on young leaves, and premature leaf senescence occur due to calcium deficiency.
Causas
Calcium deficiency
Calcium deficiency is most common in acid, sandy soils low in organic matter.
Sója - Chlorosis
Sintomas
Interveinal chlorosis on younger leaves due to calcium deficiency.
Causas
Calcium deficiency
Calcium deficiency is most common in acid, sandy soils low in organic matter.
Sója - Necrosis
Sintomas
Striking leaf symptoms due to Ca deficiency: drop-like, whitish to bluish spots occur on the leaf blade. Necroses of the same color expand along the leaf margin.
Causas
Calcium deficiency
Calcium deficiency is most common in acid, sandy soils low in organic matter.
Calcium deficiency piorado por
- 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
Cálcio É importante para
- Improved cell division and elongation
- Proper working of cell membrane
- Permeability of cell membrane
