PowerAG’s visual guide helps you determine your crop’s nutrient deficiencies.

All plants require certain micronutrients to facilitate healthy growth and produce optimum yields. When these nutrients are missing, the plants give tell-tale signs of these deficiencies. With our visual guide, you can quickly find the deficiencies affecting your crops and point you towards the right solution.

See common nutrient deficiencies in:

Alfalfa Berries Cereal Grains Corn Cucurbits Fruiting Vegetables Grapes Leafy Vegetables Potatoes Soybeans Tree Fruit

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Common Nutrient Deficiencies in Alfalfa

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Potassium Deficiency

Scorching along leaf margins.

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Boron Deficiency

Abnormal growth on youngest leaves, and terminal growth becomes stunted and dies.

Common Nutrient Deficiencies in Berries

Potassium Deficiency

Scorching along leaf margins.

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Calcium Deficiency

Browning and dieback of growing root and leaf tips.

Boron Deficiency

Abnormal growth on youngest leaves, and terminal growth becomes stunted and dies.

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Zinc Deficiency

Banding or striping appearance on new leaves; stunted growth.

Common Nutrient Deficiencies in Cereal Grains

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Nitrogen Deficiency

Pale, yellowish-green foliage and stunted plants.

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Sulfur Deficiency

Similar to Nitrogen deficiency: pale, yellowish-green foliage with marginal leaf striping.

Boron Deficiency

Abnormal growth on youngest leaves, and terminal growth becomes stunted and dies.

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Copper Deficiency

Wilting, rolling, and death of tips in youngest leaves.

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Manganese Deficiency

Gray spots on lower leaves. Brown dead areas appear as deficiency becomes acute.

Zinc Deficiency

Banding or striping appearance on new leaves; stunted growth.

Common Nutrient Deficiencies in Corn

Nitrogen Deficiency

Pale, yellowish-green foliage and stunted plants.

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Phosphorus Deficiency

Stunted plant with distorted leaf shapes. Purple or reddish color on lower leaves and stems.

Potassium Deficiency

Scorching along leaf margins.

Sulfur Deficiency

Similar to Nitrogen deficiency: pale, yellowish-green foliage with marginal leaf striping.

Zinc Deficiency

Banding or striping appearance on new leaves; stunted growth.

Common Nutrient Deficiencies in Cucurbits

Potassium Deficiency

Scorching along leaf margins.

Calcium Deficiency

Browning and dieback of growing root and leaf tips.

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Magnesium Deficiency

Intervenial chlorosis on older leaves, with leaves becoming brittle or thin.

Boron Deficiency

Abnormal growth on youngest leaves, and terminal growth becomes stunted and dies.

Zinc Deficiency

Banding or striping appearance on new leaves; stunted growth.

Common Nutrient Deficiencies in Fruiting Vegetables

Potassium Deficiency

Scorching along leaf margins.

Calcium Deficiency

Browning and dieback of growing root and leaf tips.

Boron Deficiency

Abnormal growth on youngest leaves, and terminal growth becomes stunted and dies.

Common Nutrient Deficiencies in Grapes

Potassium Deficiency

Scorching along leaf margins.

Magnesium Deficiency

Intervenial chlorosis on older leaves, with leaves becoming brittle or thin.

Boron Deficiency

Abnormal growth on youngest leaves, and terminal growth becomes stunted and dies.

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Iron Deficiency

Interveinal chlorosis on younger leaves. Severe deficiency may turn entire plant yellow to bleached white.

Zinc Deficiency

Banding or striping appearance on new leaves; stunted growth.

Common Nutrient Deficiencies in Leafy Vegetables

Potassium Deficiency

Scorching along leaf margins.

Calcium Deficiency

Browning and dieback of growing root and leaf tips.

Boron Deficiency

Abnormal growth on youngest leaves, and terminal growth becomes stunted and dies.

Common Nutrient Deficiencies in Potatoes

Potassium Deficiency

Scorching along leaf margins.

Calcium Deficiency

Browning and dieback of growing root and leaf tips.

Sulfur Deficiency

Similar to Nitrogen deficiency: pale, yellowish-green foliage with marginal leaf striping.

Boron Deficiency

Abnormal growth on youngest leaves, and terminal growth becomes stunted and dies.

Zinc Deficiency

Banding or striping appearance on new leaves; stunted growth.

Common Nutrient Deficiencies in Soybeans

Potassium Deficiency

Scorching along leaf margins.

Boron Deficiency

Abnormal growth on youngest leaves, and terminal growth becomes stunted and dies.

Manganese Deficiency

Gray spots on lower leaves. Brown dead areas appear as deficiency becomes acute.

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Molybdenum Deficiency

Older and middle leaves become chlorotic, and growth & flower formation are restricted.

Zinc Deficiency

Banding or striping appearance on new leaves; stunted growth.

Common Nutrient Deficiencies in Tree Fruit

Calcium Deficiency

Browning and dieback of growing root and leaf tips.

Boron Deficiency

Abnormal growth on youngest leaves, and terminal growth becomes stunted and dies.

Zinc Deficiency

Banding or striping appearance on new leaves; stunted growth.