Soil Fertility Nutrient Deficiency (Perfect na this)

Nitrogen deficient corn; yellowing proceeds down the midrib of older leaves.

Nitrogen deficient soybean; lower leaves turn uniformly pale green, then yellow.

Nitrogen deficient cucumber fruit is misshapen and chlorotic.

Severe nitrogen deficiency in citrus.

Phosphorus deficient sugarbeet plants are stunted, with dark green leaves.

Phosphorus deficient potato plants are stunted, with dark green leaves.

Phosphorus deficient sugarbeet plants are stunted, with dark green leaves.

Phosphorus deficient tomato leaves have purple intervenal tissue on their undersides.

Potassium deficient banana; older leaves become chlorotic, then necrotic, and the tip of the midrib bends downward.

Potassium deficient corn; margins of older leaves become chlorotic and necrotic.

Potassium deficient squash leaf edges become chlorotic and necrotic.

Potassium deficient tomato leaves have chlorotic and necrotic spotting.

Calcium deficient celery;

young leaves are necrotic and the growing point dies.

Calcium deficient tomato;

young leaves become twisted and cupped.

Calcium deficient corn leaves fail to unfold.

Calcium deficient bean leaves have chlorotic and necrotic spots.

Magnesium deficient corn; interveinal chlorosis of older leaves.

Magnesium deficient tomato; interveinal chlorosis of older leaves.

Magnesium deficient soybean; interveinal chlorosis of older leaves.

Magnesium deficient sweetpotato leaves become reddish-purple.

Sulfur deficient banana; young leaves are uniformly chlorotic.

Sulfur deficient macadamia; young leaves are chlorotic.

Sulfur deficient tomato; young leaves are uniformly chlorotic.

Sulfur deficient sorghum; young leaves are uniformly chlorotic.