Oct. 22, 2021
-- If plants fail to thrive, despite adequate organic soil preparation, watering and mulching, it may be a sign of a nutrient deficiency.
Calcium, Phosphorus, Nitrogen, Potassium, Sulphur, Magnesium and Iron are the primary nutrients that plants need. If you come up against a deficiency in one of the elements in your plant(s), you are in some serious trouble.
The Organic Street has a FREE Nutrient Deficiency Guide: https://theorganicstreet.com/
Some garden soils and potting composts suffer from a lack of nutrient content, leading to deficiency symptoms in plants, vegetables, fruits and herbs growing in them.
Other nutrient deficiencies where the growing conditions are poor and the plants are unable to take up nutrients present in the soil. Very acid or alkaline conditions, dryness and waterlogging can all make it difficult for plants to take up soil nutrients.
Nutrient deficiencies cause symptoms such as leaf yellowing or browning, sometimes in distinctive patterns. This may be accompanied by stunted growth and poor flowering or fruiting.