Micronutrients

Mo

Molybdenum

Molybdenum Deficiency in Tomatoes

Molybdenum is an essential nutrient for the reduction of nitrogen in leaves. Deficiency symptoms are similar to nitrogen deficiency in chlorotic leaves. This deficiency is commonly associated with acidic soils (low pH) where molybdenum bioavailability is reduced.

B

Boron

Boron Deficiency in Potatoes

Newly developed leaves are small and deformed with shorter internodes. Curling of leaves and a degree of necrosis on the edges may occur. The petiole base may bear a dark stripping discoloration.

Cu

Copper

Copper Deficiency in Potatoes

This deficiency is only evident on potato crops grown in soils with high organic content. Deficiencies manifest themselves as initial darkening of new leaf veins followed by decreased leaf turgidity and leaf dry out.

Mn

Manganese

Manganese Deficiency in Potatoes

Newly developed leaves will have chlorosis of their internerval areas. These new leaves may also have a bronze colour and as the deficiency increases, dark spots may develop on leaf veins.

Fe

Iron

Iron Deficiency in Potatoes

The initial deficiency symptoms exhibits itself as necrosis of internal parts of new leaves while the veins remain a green colour. The necrosis may progress to cover the entire leaf. This deficiency is associated with soils of high pH.

Zn

Zinc

Zinc Deficiency in Potatoes

This deficiency is characterised by limited growth as a result of shorter internodes as well as having small newly developed leaves.

Macronutrients

N

Nitrogen

Nitrogen Deficiency in Wheat

The deficiency begins on older leaves that will have a pale green or yellow appearance. As the deficiency progresses, entire leaves become yellow and subsequently die off. The overall plant growth is retarded.

S

Sulphur

Sulphur Deficiency in Potatoes

Initial chlorosis progresses from the edges of new leaves until the entire leaf is chlorotic. The leaf blades may also curl slightly.

K

Potassium

Potassium Deficiency in Potatoes

The older leaves will yellow followed by necrotic areas along their edges and apex. Leaves will appear wilted due to the fact that they arch downwards. A marked reduction in tuber production occurs.

Ca

Calcium

Calcium Deficiency in Potatoes

Deficiency symptoms initially manifests as chlorosis of older leaves’ internal areas. The necrosis may progress to necrosis where spots are evident on leaves with green margins.

P

Phosphorus

Phosphorus Deficiency in Potatoes

Older leaves have characteristic yellow necrotic edges. Leaves may be wrinkled or deformed. As a result of leaf darkening, leaves will have less shine and will curve upwards.

Mg

Magnesium

Newly developed leaves are small with curled up edges. Stems have decreased thickness. Yellowing as well as necrosis on the edge of leaves may occur.

Micronutrients

Mo

Molybdenum

Molybdenum Deficiency

Symptoms similar to those of nitrogen deficiency in terms of chlorosis of leaves. Overall poor growth and development as seen through reduced growth of plants and roots as well as a decrease in bean production and their weight. Root nodules are small with pale yellow to greenish colour showing little activity.

Cu

Copper

Copper Deficiency

Overall leaf appearance is poor. New leaves have necrotic areas at their tips which causes the leaflet ends to curl as the necrosis extends. The leaves take on a dehydrated appearance with discolouration ranging from bluish green to bronze green to olive green.

Fe

Iron

Iron Deficiency

Effects are visible on new leaves in between veins, where the colour progresses from pale green to whitish in colour. Subsequently there is also discolouration of veins together with the development of necrotic spots characterized by brown borders

B

Boron

Boron Deficiency

The overall development at the growing points is retarded which could cause their death. New leaves’ leaflets are abnormal, characterised by smaller sizes, deformities, wrinkled appearance and green-blue discolorations. Developmental processes such as flower development is severely decreased causing flower abortions.

Mn

Manganese

Manganese deficiency

There is a gradual yellowish discolouration of newly formed leaves, specifically in between veins. The overall growth and development of the plant is not at optimal as seen through small leaves. As a result of increased nutrient deficiency necrotic areas with a brown appearance, develops.

Zn

Zinc

Zinc deficiency

Abnormally shaped (pointed ends) new smaller leaves with evident areas showing chlorosis which may progress to grey or brown discolorations. Plants appear to have a decreased overall size as a results of shorter internodes. A less erect stem with decreased racenes production.

Macronutrients

N

Nitrogen

Nitrogen Deficiency

eaves to the bottom of the plant have an overall chlorotic appearance which when progressed may cause loss of these leaves. Newly developed leaves have less prominent green colouration as well as the plant having poor vegetative and root development.

Ca

Calcium

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There is deterioration of terminal buds along with the possibility of petiole collapse. Wrinkled newly developed leaves with chlorosis that will progress from the edges to the centre.

Mg

Magnesium

Magnesium Deficiency

The border and subsequently the centre of older leaves will show initial yellowing. As a result, these leaves will develop chlorotic areas in between the leave veins. The edges of leaves may appear dried out.

P

Phosphorus

Phosphorus Deficiency

Bluish dark green discoloration can be seen on older leaves that are markedly smaller. Chlorosis on the tips and towards the base of leaves can be seen. Stems have a purple discoloration at their bases and pod production is reduced.

S

Sulphur

Sulphur Deficiency

Symptoms will initially be evident on newly developed leaves that have reduced sizes and chlorosis. Subsequently the leaves begin to yellow as if experiencing nitrogen deficiency.

K

Potassium

Potassium Deficiency

A yellow speckled chlorotic discoloration can be seen on the edges of leaves that will progress towards the centre of leaves. Subsequently necrotic spots develop on the edges of leaves and will progress to the centre.

Micronutrients

Mo

Molybdenum

Molybdenum Deficiency in Tomatoes

Older leaves have chlorotic areas on their blades in between their veins. Untimely fall of off flowers and fruit.

B

Boron

Boron Deficiency in Tomatoes

Terminal leaves and buds can die off. Plant tissue is brittle in texture. Untimely fall of off flowers and fruit. A brown discoloration can be seen of fruits near their blossom.

Cu

Copper

Manganese Deficiency in Tomatoes

The blades of new leaves are protruding much more in comparison to their veins. Older leaves have edges that curl upwards.

Mn

Manganese

Manganese Deficiency in tomatoes

New leaves have chlorosis and subsequent necrosis of their edges and tips.

Fe

Iron

Iron Deficiency in Tomatoes

Newly developed leaves have chlorotic areas in between veins. In severe iron deficient pants, the leaves can have and overall yellow appearance.

Zn

Zinc

Zinc Deficiency

Newly developed leaves are smaller with a thin yellowish appearance. Reduced flower development and production rate.

Macronutrients

N

Nitrogen

Nitrogen Deficiency in Tomatoes

Overall retarded plant growth. The leaves towards the bottom of the plant have a green to yellow discoloration that will progress to leave dry up and death.

S

Sulphur

Sulphur Deficiency in Tomatoes

Depending on the intensity of the deficiency, newly developed leaves will either have a light green or yellow discoloration.

K

Potassium

Potassium Deficiency in Tomatoes

Leaves to the bottom of the plant have chlorosis on their tips and edges that progresses to death of the chlorotic tissue.

Ca

Calcium

Calcium Deficiency in Tomatoes

Fall of off flowers and smaller fruits. Blossom end rot of fruits occur.

P

Phosphorus

Phosphorus Deficiency in Tomatoes

Older leaves have a purple discolouration to the bottom. Poor development cause stems to be thin.

Mg

Magnesium

Manganese Deficiency in tomatoes

Older leaves have chlorotic areas on their blades in between their veins.

Micronutrients

Mo

Molybdenum

Molybdenum Deficiency in Wheat

This type of deficiency affects the plants ability to assimilate nitrogen. Leaves to the lower part of the plant may have a blotchy appearance.

B

Boron

Boron Deficiency in Wheat

This deficiency is most commonly associated with abnormally developed and deformed flowers. These flowers exhibit a high level of sterility which is linked to malformed grains.

Cu

Copper

Copper Deficiency in Wheat

Newly developed leaves have a pale green appearance. Leaves will twist up into a "spiral". Leaves with normal green colouration however have dead tips.

Mn

Manganese

Manganese Deficiency in Wheat

The interveinal areas of new leaves show chlorosis which progress into grey brownish lesions.

Fe

Iron

Iron Deficiency in Wheat

Newly developed leaves have yellow chlorosis of the areas in between veins while ribs remain prominently green.

Zn

Zinc

Zinc Deficiency in Wheat

Overall reduced development of plants characterised by smaller necrotic (interveinal) leaves that become evident when new leaves start to grow.

Macronutrients

N

Nitrogen

Nitrogen Deficiency in Wheat

Older leaves have a pale green appearance. In terms of developmental effects, leaves have yellow discolourations in conjunction with necrosis at their tips.

S

Sulphur

Sulphur Deficiency in Wheat

Newly developed leaves have an overall light coloration to them. The overall growth of the plant is reduced.

K

Potassium

Potassium Deficiency in Wheat

Older leaves are bronze in colour and dry out from their tip to base. The overall growth and development is reduced as seen through reduced leaf development.

Ca

Calcium

Calcium Deficiency in Wheat

Newly developed leaves have a yellow discolouration that initially develops at the tips which will dry out and curl up. The yellow discolouration gradually spreads along the edge of leaves.

P

Phosphorus

Phosphorus Deficiency in Wheat

Older leaves are bronze in colour and dry out from their tip to base. The overall growth and development is reduced as seen through reduced leaf development.

Mg

Magnesium

Magnesium Deficiency in Wheat

The overall colour of older leaves is green to yellowish together with yellow brownish spots.