Nutrient Deficiency Information Application

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This application can help you, and your website visitors diagnose nitrogen, iron, potassium and many other nutrient deficiencies, to make sure that you have strong and healthy hydroponic plants.

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Boron

Deficiencies show up first in younger leaves; they turn yellow. Boron deficiencies resemble calcium deficiencies. Symptoms include stunting, discoloration, death of growing tips, and floral abortion.

Calcium

Deficiencies show first in new, young growth. Calcium moves slowly within plants and concentrated in roots and older growth. Thatâ€™s why young growth shows deficiency signs first.

Chlorine

Believe it or not, chlorine is essential for plant growth. Itâ€™s needed for photosynthesis. Itâ€™s an enzyme activator that assists production of oxygen from water and in water transport regulation.

Cobalt

Deficiencies are rare, but express themselves as chlorosis of younger leaves.

Copper

Deficiencies show up first on youngest leaves, young tips, buds and shoots. Older leaves develop chlorosis, growing tips die and bud development is small. Copper deficiencies cause irregular growth and pale green leaves that wither at leaf margins.

Iron

Iron deficiency is common in many plants, especially those grown indoors.

Deficiencies initially show as interveinal chlorosis in young leaves, with leaf veins green in color and older leaves unaffected. Leaves are smaller than normal.

Magnesium

Magnesium deficiencies show first in older, lower leaves. The symptoms start from the margin inwards. The leaf mid-rib and veins remain green while leaf margins are yellow or whitish, sometimes leaving a green arrowhead shape in the centre of the blade.

Molybdenum

Deficiencies show up in older and middle-aged leaves first, and then show up in younger leaves.

Molybdenum is rarely deficient in most plants, but chlorosis symptoms similar to nitrogen deficiency are typical of molybdenum deficiency, along with scorching and strapping of leaf margins.

Nitrogen

Nitrogen deficiencies often appear first in older leaves, and will manifest as a light green overall appearance.

Phosphorus

Phosphorus deficiencies show up in older growth first. You will see leaf tips curling downwards.

Potassium

Potassium deficiencies show first in older leaves and are displayed as: yellowing; singed or scorching of leaf margins with small necrotic areas that start small and get bigger; brittle stems accompanied by withering leaf tips; interveinal chlorosis starting at the base of young leaves; reddening and upwards leaf curl in older leaves.

Silicon

Silicon is a very important plant nutrient. It is a vital component of epidermal cell walls. It strengthens plants so they can fight off diseases and resist insects, drought, heat and stress.

Sulfer

Deficiencies show up on older leaves first. Then they show up on younger leaves, turning them light green, then yellow. These symptoms are accompanied by slow growth. Leaves lose color, but veins remain green.

Zinc

Zinc deficiencies are among the more serious of micronutrient deficiencies and should be corrected as soon as they are diagnoses.

Charts

Carbon Dioxide Calculation Charts
Lighting Spectrum Chart

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