![]() 3 Common Questions About Marijuana Nutrient Deficiency in Plants If you’d like a more visual reference to what the various nutrient deficiencies look like in cannabis plants, download our Cannabis Fertilizer Growers Handbook and learn how to get 5X more buds with 80% less fertilizer. Identifying the common symptoms of cannabis plant deficiencies can be difficult. Zinc deficiency: Leaf tips burn and appear discoloured, with the growth of shoots that are bunched up, and wrinkled leaves.Manganese deficiency: Young leaves develop interveinal chlorosis, dead spots appear, and margins stay dark around interveinal chlorosis.Iron deficiency: Slow growth and smaller harvest, young leaves develop interveinal chlorosis, leaves may drop.Sulphur deficiency: Weak bud formation, new leaves are lime green, purple streaks may appear on stems, and leaf tips can burn.Potassium deficiency: Mature leaves are pale, leaf tips are rust colour and burn, minimal flowering, small and weak stems.Magnesium deficiency : The plant appears unhealthy, older leaves dry up, and yellow and brown spots on the leaves.Phosphorus deficiency: Slow vertical growth, leaves are blueish-green, copper-coloured dead blotches on lower leaves, some leaves develop purple colour and curl, wither, and fall off.Calcium deficiency: Smaller plant with slow flowering, random yellow and brown spots, lower leaves curl.Nitrogen deficiency: Plants are shorter, smaller leaves, yellowing that moves upward, lower leaves turn yellow, and premature flowering.Here’s a list of the signs of deficiency based on the nutrient type: The symptoms of cannabis nutrient deficiencies depend on the nutrient. What are the symptoms of nutrient deficiency in plants? 9 nutrients to monitor: How you treat these deficiencies will largely depend on the signs that appear on the plant.īelow we’ll outline the most 9 common signs / symptoms of nutrient deficiency in cannabis plants and answer common questions we hear from our customers from California to Maine. Some deficiencies appear in the form of spots while others are burned tips or varying forms of discolouration. The challenge with growing cannabis is that different nutrient deficiencies have different symptoms and there isn’t one telltale sign to look for. It’s essential to know the signs to monitor. ![]() Understanding the signs of nutrient deficiency in cannabis plants is vital information growers need to understand in great detail in order to improve crop yield.Īre your cannabis plants growing as well as they should? Are they healthy? Do they appear to have a nutrient deficiency? Not sure? ![]() 9 Symptoms of Nutrient Deficiencies in Cannabis Plants & How To Identify Them.
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