Color Pictures of Color Pictures of Mineral Deficiencies Mineral Deficiencies in Potato in Potato

POTATO IN SAND POTATO IN SAND CULTURECULTURE

Growth normal; foliage healthy green Growth normal; foliage healthy green color. color.

Complete mineral nutrient Complete mineral nutrient

Nitrogen deficiency Nitrogen deficiency

Growth severely restricted, few stems; Growth severely restricted, few stems; yellowing of older foliage yellowing of older foliage

Phosphorus deficiency Phosphorus deficiency

Growth thin, few stems; leaflets marginal Growth thin, few stems; leaflets marginal scorch, older leaves shed. scorch, older leaves shed.

Calcium deficiency Calcium deficiency

Growth fairly good; bushy appearance; Growth fairly good; bushy appearance; young leaflets small, slightly chlorotic, young leaflets small, slightly chlorotic, forward roll and marginal scorch. This forward roll and marginal scorch. This plant failed to form tubers of appreciable plant failed to form tubers of appreciable size. size.

Magnesium deficiency Magnesium deficiency

Growth fairly normal; foliage slightly pale; Growth fairly normal; foliage slightly pale; older leaflets develop central necrosis, older leaflets develop central necrosis, turn yellow or brown and wither turn yellow or brown and wither prematurely. prematurely.

Potassium deficiency Potassium deficiency

Growth tends to be squat and bushy; Growth tends to be squat and bushy; leaflets bluish green and slight intervenal leaflets bluish green and slight intervenal chlorosis, marginal scorch and brown chlorosis, marginal scorch and brown spots on under surface. spots on under surface.

Nitrogen deficiency Nitrogen deficiency

nitrogen deficient leaf, pale green and nitrogen deficient leaf, pale green and yellow tinted, contrasted with yellow tinted, contrasted with leftleft, normal , normal green leaf with ample nitrogen supply green leaf with ample nitrogen supply

Magnesium deficiency Magnesium deficiency

Growth fairly normal; foliage slightly pale; Growth fairly normal; foliage slightly pale; older leaflets develop central necrosis, older leaflets develop central necrosis, turn yellow or brown and wither turn yellow or brown and wither prematurely prematurely