Συμπτώματα
Symptoms of potassium deficiency are visible on older leaves first. Chlorosis starts from the leaf tips in the intercostal areas. The yellow to orange zones coalesce and spread over the whole leaf, subsequently followed by a dark brown necrosis.
The necrosis may also stay limited on the marginal area, resulting in so-called leaf scorch.
K undersupply causes shortening of internodes that leads to a bushy shoot growth ('arrepollamiento').
Single fruit size as well as hand and bunch size are reduced.
Αιτίες
Potassium deficiency.
Similar leaf symptoms may be caused by manganese or phosphorus deficiency, which also result in chlorosis, followed by necrosis. However, Mn deficiency is visible on younger leaves first.
Magnesium deficiency causes interveinal chlorosis with necrotic zones later, too, but these are spread over the whole leaf area and do not concentrate on the leaf tip or margin.
Salt stress due to overfertilization may also be a reason for marginal scorching.
Μπανάνα - Necrosis
Συμπτώματα
Symptoms of potassium deficiency are visible on older leaves first. Chlorosis starts from the leaf tips in the intercostal areas. The yellow to orange zones coalesce and spread over the whole leaf, subsequently followed by a dark brown necrosis.
The necrosis may also stay limited on the marginal area, resulting in so-called leaf scorch.
K undersupply causes shortening of internodes that leads to a bushy shoot growth ('arrepollamiento').
Single fruit size as well as hand and bunch size are reduced.
Αιτίες
Potassium deficiency.
Similar leaf symptoms may be caused by manganese or phosphorus deficiency, which also result in chlorosis, followed by necrosis. However, Mn deficiency is visible on younger leaves first.
Magnesium deficiency causes interveinal chlorosis with necrotic zones later, too, but these are spread over the whole leaf area and do not concentrate on the leaf tip or margin.
Salt stress due to overfertilization may also be a reason for marginal scorching.
Μπανάνα - Chlorosis
Συμπτώματα
Symptoms of potassium deficiency are visible on older leaves first. Chlorosis starts from the leaf tips in the intercostal areas. The yellow to orange zones coalesce and spread over the whole leaf, subsequently followed by a dark brown necrosis.
The necrosis may also stay limited on the marginal area, resulting in so-called leaf scorch.
K undersupply causes shortening of internodes that leads to a bushy shoot growth ('arrepollamiento').
Single fruit size as well as hand and bunch size are reduced.
Αιτίες
Potassium deficiency.
Similar leaf symptoms may be caused by manganese or phosphorus deficiency, which also result in chlorosis, followed by necrosis. However, Mn deficiency is visible on younger leaves first.
Magnesium deficiency causes interveinal chlorosis with necrotic zones later, too, but these are spread over the whole leaf area and do not concentrate on the leaf tip or margin.
Salt stress due to overfertilization may also be a reason for marginal scorching.
Μπανάνα - Shortening of internodes
Συμπτώματα
Symptoms of potassium deficiency are visible on older leaves first. Chlorosis starts from the leaf tips in the intercostal areas. The yellow to orange zones coalesce and spread over the whole leaf,
subsequently followed by a dark brown necrosis.
The necrosis may also stay limited on the marginal area, resulting in so-called leaf scorch.
K undersupply causes shortening of internodes that leads to a bushy shoot growth ('arrepollamiento').
Single fruit size as well as hand and bunch size are reduced.
Αιτίες
Severe potassium deficiency.
Similar leaf symptoms may be caused by manganese or phosphorus deficiency, which also result in chlorosis, followed by necrosis. However, Mn deficiency is visible on younger leaves first.
Magnesium deficiency causes interveinal chlorosis with necrotic zones later, too, but these are spread over the whole leaf area and do not concentrate on the leaf tip or margin.
Salt stress due to overfertilization may also be a reason for marginal scorching.
Μπανάνα - Necrosis
Συμπτώματα
Symptoms of potassium deficiency are visible on older leaves first. Chlorosis starts from the leaf tips in the intercostal areas. The yellow to orange zones coalesce and spread over the whole leaf, subsequently followed by a dark brown necrosis.
The necrosis may also stay limited on the marginal area, resulting in so-called leaf scorch.
K undersupply causes shortening of internodes that leads to a bushy shoot growth ('arrepollamiento').
Single fruit size as well as hand and bunch size are reduced.
Αιτίες
Potassium deficiency.
Similar leaf symptoms may be caused by manganese or phosphorus deficiency, which also result in chlorosis, followed by necrosis. However, Mn deficiency is visible on younger leaves first.
Magnesium deficiency causes interveinal chlorosis with necrotic zones later, too, but these are spread over the whole leaf area and do not concentrate on the leaf tip or margin.
Salt stress due to overfertilization may also be a reason for marginal scorching.
Μπανάνα - Necrosis
Συμπτώματα
Symptoms of potassium deficiency are visible on older leaves first. Chlorosis starts from the leaf tips in the intercostal areas. The yellow to orange zones coalesce and spread over the whole leaf, subsequently followed by a dark brown necrosis.
The necrosis may also stay limited on the marginal area, resulting in so-called leaf scorch.
K undersupply causes shortening of internodes that leads to a bushy shoot growth ('arrepollamiento').
Single fruit size as well as hand and bunch size are reduced.
Αιτίες
Potassium deficiency.
Similar leaf symptoms may be caused by manganese or phosphorus deficiency, which also result in chlorosis, followed by necrosis. However, Mn deficiency is visible on younger leaves first.
Magnesium deficiency causes interveinal chlorosis with necrotic zones later, too, but these are spread over the whole leaf area and do not concentrate on the leaf tip or margin.
Salt stress due to overfertilization may also be a reason for marginal scorching.
Μπανάνα - Size reduced
Συμπτώματα
Symptoms of potassium deficiency are visible on older leaves first. Chlorosis starts from the leaf tips in the intercostal areas. The yellow to orange zones coalesce and spread over the whole leaf,
subsequently followed by a dark brown necrosis.
The necrosis may also stay limited on the marginal area, resulting in so-called leaf scorch.
K undersupply causes shortening of internodes that leads to a bushy shoot growth ('arrepollamiento').
Single fruit size as well as hand and bunch size are reduced.
Αιτίες
Potassium deficiency.
Similar leaf symptoms may be caused by manganese or phosphorus deficiency, which also result in chlorosis, followed by necrosis. However, Mn deficiency is visible on younger leaves first.
Magnesium deficiency causes interveinal chlorosis with necrotic zones later, too, but these are spread over the whole leaf area and do not concentrate on the leaf tip or margin.
Salt stress due to overfertilization may also be a reason for marginal scorching.
Μπανάνα - Chlorosis
Συμπτώματα
Symptoms of potassium deficiency are visible on older leaves first. Chlorosis starts from the leaf tips in the intercostal areas. The yellow to orange zones coalesce and spread over the whole leaf, subsequently followed by a dark brown necrosis.
The necrosis may also stay limited on the marginal area, resulting in so-called leaf scorch.
K undersupply causes shortening of internodes that leads to a bushy shoot growth ('arrepollamiento').
Single fruit size as well as hand and bunch size are reduced.
Αιτίες
Potassium deficiency.
Similar leaf symptoms may be caused by manganese or phosphorus deficiency, which also result in chlorosis, followed by necrosis. However, Mn deficiency is visible on younger leaves first.
Magnesium deficiency causes interveinal chlorosis with necrotic zones later, too, but these are spread over the whole leaf area and do not concentrate on the leaf tip or margin.
Salt stress due to overfertilization may also be a reason for marginal scorching.
Potassium deficiency χειροτερεύει από
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
Κάλιο είναι σημαντικό για
Respiration, photosynthesis and water regulation
Transport and accumulation of sugars in the plant
High effect on yield and fruit quality
Increase of crop height, girth, leaf growth and number of fruit per plant