Deficiencies

Phosphorus deficiency

Identify Phosphorus deficiency: symptoms, possible causes, prevention, and practical actions for 9 affected plants. dark green to bluish leaves

Affected plantsDeficiencies

Phosphorus deficiency is relevant across 9 plant profiles on Wild-Wuchs. In the data it is most often linked with Tree spinach, butternut squash, Chickpea, Allium, Horseradish. Typical signs include: dark green to bluish leaves For gardeners, early diagnosis, suitable growing conditions, and gentle action matter most: apply phosphorus-rich fertilizer (e.g., Thomas phosphate)

Plants

9

Category

Bulb and tuber vegetables, Fruit, Leafy vegetables, Legumes, Vegetables

Risk

low

Synonyms

Phosphormangel, phosphormangel

Overview

Symptoms

  • dark green to bluish leaves
  • Dark green to purplish discoloration of leaves
  • Severely stunted growth

Damage

  • Leaves turn dark green to bluish, growth is severely stunted. Visible especially in cool temperatures.
  • Can occur in cold, wet soils or soils with high pH, as phosphorus is less available.

Causes

  • cold soils
  • Low soil pH
  • Phosphorus-poor soil

Prevention

  • apply phosphorus-rich fertilizer (e.g., Thomas phosphate)
  • Ensuring adequate soil temperature at sowing
  • Enrich soil with mature compost

Organic control

  • Incorporate phosphorus-rich fertilizer (e.g., bone meal)
  • Phosphorus-rich organic fertilizers
  • Anwendung von organischen Phosphatdüngern wie Knochenmehl oder Thomasschlacke

Affected plants

Tree spinachbutternut squashChickpeaAlliumHorseradishsoybeanTomatillowatermelonSweet corn

Guides

Related guides

Garden guides

Similar topics

Nitrogen deficiencyPotassium deficiencyMagnesium deficiencyIron deficiency

FAQ

How do I recognize Phosphorus deficiency?

dark green to bluish leaves

What causes Phosphorus deficiency?

cold soils

How can I prevent Phosphorus deficiency?

apply phosphorus-rich fertilizer (e.g., Thomas phosphate)

What helps against Phosphorus deficiency?

Incorporate phosphorus-rich fertilizer (e.g., bone meal)

Which plants are affected?

Tree spinach, butternut squash, Chickpea, Allium, Horseradish, soybean, Tomatillo, watermelon, Sweet corn

When does Phosphorus deficiency usually appear?

Timing depends on plant, weather, and growing conditions; check regularly during stress periods.