Calcium
Symptoms
Blossom-end rot: sunken, papery patches at the blossom end of fruits.
Correction
Calcium nitrate through drip or foliar calcium sprays; avoid irregular irrigation.
Vegetables · Capsicum annuum
Capsicum fertilizer and nutrition guide
Steady calcium and potassium supply for thick-walled, glossy capsicum and fewer fruit disorders.
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About Capsicum nutrition
Capsicum (bell pepper) is a high-value vegetable grown in open fields and protected cultivation. It responds strongly to fertigation, and consistent calcium and potassium supply is the key to thick, glossy, marketable fruits.
- Climate
- Mild climate, ideally about 20-25 °C. Night temperatures above about 24 °C or below 15 °C reduce fruit set.
- Soil
- Well-drained, fertile loam with good organic matter, pH around 6.0-7.0.
Stage-wise nutrient management for Capsicum
What the crop needs most at each growth stage.
Transplanting & establishment
Phosphorus for rooting and a basal dose of organic manure.
Vegetative growth
Nitrogen and potassium in balance; magnesium for leaf health.
Flowering & fruit set
Calcium and boron to reduce flower drop and improve fruit set.
Fruit development & harvest
High potassium for wall thickness, colour and shelf life; continue calcium.
Common nutrient deficiencies in Capsicum
How to recognise them in the field and how they are usually corrected.
Boron
Symptoms
Flower and small-fruit drop, deformed fruits.
Correction
Foliar boron spray before flowering.
Magnesium
Symptoms
Interveinal yellowing on older leaves.
Correction
Magnesium sulphate through drip or foliar spray.
Need a Capsicum fertilizer schedule?
Exact doses depend on your soil test, variety and irrigation. Tell us your crop stage, area and location and we will recommend the right products and quantities.
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