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Exchangeable Ca

Exchangeable Ca is the brick the soil can hand over. A foliar spray is only a rescue.

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  1. Exchangeable Ca。
  2. Exchangeable Ca is the brick the soil can hand over. A foliar spray is only a rescue.。
  3. Ca lack hits the tip, blossom-end rot, split fruit。
  4. scorched heart leaves. Old leaves stay finer. Soil can have Ca the plant never sees.。
  5. Ca lack hits the tip, blossom-end rot, split fruit。
  6. scorched heart leaves. Old leaves stay finer. Soil can have Ca the plant never sees.。

How it appears on the sheet

Ca lack hits the tip, blossom-end rot, split fruit, scorched heart leaves. Old leaves stay finer. Soil can have Ca the plant never sees.

A sketch. Do not fertilise from the picture alone.

Common units

Often cmol/kg or mg/kg.

How to read the number

Ca lack hits the tip, blossom-end rot, split fruit, scorched heart leaves. Old leaves stay finer. Soil can have Ca the plant never sees. Calcium barely moves. Drought, salt, ammonium-N and acid starve the tip Easy to mix up: Pathogen rot goes deep; Ca lack starts at the tip or blossom end and tracks wet–dry swings Exchangeable Ca is the brick the soil can hand over. A foliar spray is only a rescue.。

Thresholds only, not a prescription. Rates live in the field guide. This page does not hand you a bag count.

What it looks like in the field

Ca lack hits the tip, blossom-end rot, split fruit, scorched heart leaves. Old leaves stay finer. Soil can have Ca the plant never sees.

Don’t do this

  • Spraying blossom-end rot as a disease.
  • Ammonium-N poured onto dry swings.
  • Pathogen rot goes deep; Ca lack starts at the tip or blossom end and tracks wet–dry swings.

Lesson video