We hope with this chilli deficiencies and solution guide that you will be able to identify and diagnose common plant nutrient deficiency and toxicity symptoms. Bear in mind that there are potential limitations with visual diagnosis only, but this should point you in the right direction:
Nitrogen Deficiency
SIGNS:
Yellow or pale green leaves, stunted growth
SOLUTION:
Add coffee grounds directly to your soil or plant nitrogen-rich plants near nitrogen-deficient plants. Common nitrogen-rich plants include beans and peas.
Phosphorous Deficiency
SIGNS:
Darkening around edges of leaves, small or absent flowers, stunted growth
SOLUTION:
Add bone meal directly to soil. You can also add used fish tank water to soil if it does not contain salt water. This water is also a good source of nitrogen.
Potassium Deficiency
SIGNS:
Leaves with brown spots, brown or yellow veins or yellow edges. This deficiency is more susceptible to disease and drought.
SOLUTION:
Bury banana peels an inch into your soil. Peels take a while to rot, so this is a method that will slowly help your plants. Banana peels also deter aphids.
Magnesium Deficiency
SIGNS:
Yellowing of veins and edges of leaves. Can sometimes have a marbled appearance.
SOLUTION:
Add epsom salt directly to the top of your soil before you water your soil. Epsom salt is especially beneficial peppers.
Calcium Deficiency
SIGNS:
Yellow spots between leaf veins, blossom end rot, stunted growth, week or dying stems.
SOLUTION:
Add crushed egg shells into soil. This method will slowly help your plants, so make sure you mix the egg shells well into the soil to help the process along.