Copper and nickel deficiency
I just got my soil tested, and the result is that my soil has copper and nickel deficiency. What can I do to improve my soil and plants with copper and nickel deficiency using natural ways or organic methods?
Certified GKH Gardening Expert
These articles explain how to supplement copper. Copper can be toxic to plants in excessive amounts, so only apply the required amounts:
Nickel is an essential nutrient for plants but is required in very small amounts. Supplementation with nickel is usually not needed, and excessive amounts are toxic to plants. However, if the soil pH is too high, plants can have trouble taking up nickel, so the recommended treatment is to lower the pH to the plant's ideal pH range: