Potassium deficiency-Almond

Symptoms
Retarded growth of new leaves, which remain small and show a uniform yellowgreen colour. Leaves are scorched and often curled up longitudinally. Well-defined necrotic areas are visible at the leaf tips and margins. Symptoms occur first in the tree tops and in the middle of the spur. At severe deficiency, fruiting spurs die, and yield potential of the following years will be reduced.

Reasons
Potassium deficiency. The critical value for potassium is 1.4% in leaves. Highest demand for potassium is in spring, and about 70% of K accumulates in the tree before summer. Since a good potassium supply is essential for the formation and differentiation of flowers for the next years‘ crop, yield reductions at low K status may become visible with a delay of several years. Differences occur between the varieties in their sensitivity towards K deficiency.

Symptoms
Retarded growth of new leaves, which remain small and show a uniform yellowgreen colour. Leaves are scorched and often curled up longitudinally. Well-defined necrotic areas are visible at the leaf tips and margins. Symptoms occur first in the tree tops and in the middle of the spur. At severe deficiency, fruiting spurs die, and yield potential of the following years will be reduced.

Reasons
Potassium deficiency. The critical value for potassium is 1.4% in leaves. Highest demand for potassium is in spring, and about 70% of K accumulates in the tree before summer. Since a good potassium supply is essential for the formation and differentiation of flowers for the next years‘ crop, yield reductions at low K status may become visible with a delay of several years. Differences occur between the varieties in their sensitivity towards K deficiency.

Symptoms
Retarded growth of new leaves, which remain small and show a uniform yellowgreen colour. Leaves are scorched and often curled up longitudinally. Well-defined necrotic areas are visible at the leaf tips and margins. Symptoms occur first in the tree tops and in the middle of the spur. At severe deficiency, fruiting spurs die, and yield potential of the following years will be reduced.

Reasons
Potassium deficiency. The critical value for potassium is 1.4% in leaves. Highest demand for potassium is in spring, and about 70% of K accumulates in the tree before summer. Since a good potassium supply is essential for the formation and differentiation of flowers for the next years‘ crop, yield reductions at low K status may become visible with a delay of several years. Differences occur between the varieties in their sensitivity towards K deficiency.