Plant Nutrition and Deficiency Symptoms
Keep your plants healthy:
Nitrogen (N)
Dried Blood, Garden Manure, Cottonseed Meal, Ammonium Sulfate, Urea
Organic farming and gardening methods focus on feeding the soil and not the plants. Reliance on synthetic fertilizers and most chemical pesticides are avoided completely. The organic grower focuses on the importance of all micro organisms in the soil and the ability they have to release natural nutrients found in composted organic materials. Although the Major Nutrients known as
(N), (P) and (K) are needed in the greatest quantities, a deficiency of any one nutrient listed here can prevent plant growth, or reduce it to unsatisfactory levels.
Using synthetic fertilizers and pesticides often destroy the natural balance of the soil food web and breeds diseases. This allows for an overpopulation of damaging insects to develop. The organic grower produces a healthier more nutritional food that is better tasting and protects the environment and the food produced.
Understanding the soil food web and how plants interact with it is fundamental to growing a healthy, abundant crop.
Phosphorus (P)
Rock Phosphate, Bone Meal, Single Super Phosphate, Triple Super Phosphate
Potassium (K)
Sulfate of Potash, Sulfate of Potash Magnesia, Muriate of Potash, Greensand, Kelp.
Macronutrients
Cobalt (Co) and Sodium (Na)
A cobalt deficiency may be indicated by Reduced growth and
yellowing of foliage. Sodium deficiency can lead to a wilted appearance for a prolonged period of time. Plant stress from over and under watering may also cause plants to wilt.
Keep your plants healthy:
Nitrogen (N)
- Symptoms: Older leaves, generally at the bottom of the plant, will yellow. Remaining foliage is often light green. Stems may also yellow and may become spindly. Growth slows.
- Sources: Any compound containing the words: 'nitrate', 'ammonium' or 'urea'. Also manure.
- Notes: Many forms of nitrogen are water soluble. Our atmosphere is composed of 78% Nitrogen. Our planet is 75% water.
Dried Blood, Garden Manure, Cottonseed Meal, Ammonium Sulfate, Urea
Organic farming and gardening methods focus on feeding the soil and not the plants. Reliance on synthetic fertilizers and most chemical pesticides are avoided completely. The organic grower focuses on the importance of all micro organisms in the soil and the ability they have to release natural nutrients found in composted organic materials. Although the Major Nutrients known as
(N), (P) and (K) are needed in the greatest quantities, a deficiency of any one nutrient listed here can prevent plant growth, or reduce it to unsatisfactory levels.
Using synthetic fertilizers and pesticides often destroy the natural balance of the soil food web and breeds diseases. This allows for an overpopulation of damaging insects to develop. The organic grower produces a healthier more nutritional food that is better tasting and protects the environment and the food produced.
Understanding the soil food web and how plants interact with it is fundamental to growing a healthy, abundant crop.
Phosphorus (P)
- Symptoms: Small leaves that may take on a reddish-purple tint. Leaf tips can look burnt and older leaves become almost black. Reduced fruit or seed production.
- Sources: Compounds containing the words 'phosphate' or 'bone'. Also greensand.
- Notes: Very dependent on pH range.
Rock Phosphate, Bone Meal, Single Super Phosphate, Triple Super Phosphate
Potassium (K)
- Symptoms: Older leaves may look scorched around the edges and/or wilted. Interveinal chlorosis (yellowing between the leaf veins) develops.
- Sources: Compounds containing the words 'potassium' or 'potash'.
Sulfate of Potash, Sulfate of Potash Magnesia, Muriate of Potash, Greensand, Kelp.
Macronutrients
- Calcium (Ca)
- Symptoms: New leaves are distorted or hook shaped. The growing tip may die. Contributes to blossom end rot in tomatoes and also tip burn of cabbage.
- Sources: Any compound containing the word 'calcium'. Also gypsum.
- Notes: Not often a deficiency problem and too much will inhibit other nutrients.
- Magnesium (Mg)
- Symptoms: Slow growth and leaves turn pale yellow, sometimes just on the outer edges. New growth may be yellow with dark spots.
- Sources: Compounds containing the word 'magnesium', such as Epson Salts.
- Sulfur (S)
- Symptoms: New growth turns pale yellow, older growth stays green. Stunts growth.
- Sources: Compounds containing the word 'sulfate'.
- Notes: More prevalent in dry weather.
- Boron (B)
- Symptoms: Poor stem and root growth. Terminal (end) buds may die. Witches brooms sometimes form.
- Sources: Compounds containing the words 'borax' or 'borate'.
Copper (Cu)- Symptoms: Stunted growth. Leaves can become limp, curl, or drop. Seed stalks also become limp and bend over.
- Sources: Compounds containing the words 'copper', 'cupric' or 'cuprous'.
Manganese (Mn)- Symptoms: Growth slows. Younger leaves turn pale yellow, often starting between veins. May develop dark or dead spots. Leaves, shoots and fruit diminished in size. Failure to bloom.
- Sources: Compounds containing the words 'manganese' or 'manganese'
Molybdenum (Mo)- Symptoms: Older leaves yellow, remaining foliage turns light green. Leaves can become narrow and distorted.
- Sources: Compounds containing the words 'molybdate' or 'molybdic'.
- Notes: Sometimes confused with nitrogen deficiency.
Zinc (Zn)- Symptoms: Yellowing between veins of new growth. Terminal (end) leaves may form a rosette.
- Sources: Compounds containing the word 'zinc'.
- Notes: Can become limited in higher pH.
Cobalt (Co) and Sodium (Na)
A cobalt deficiency may be indicated by Reduced growth and
yellowing of foliage. Sodium deficiency can lead to a wilted appearance for a prolonged period of time. Plant stress from over and under watering may also cause plants to wilt.
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Although every reasonable effort has been made to ensure the accuracy of the information contained on this site, absolute accuracy cannot be guaranteed. This site, and all information and materials appearing on it, are presented to the user "as is" without warranty of any kind, either express or implied
The products and statements made about specific plants or products on this web site have not been evaluated by the United States Food and Drug Administration (FDA) and are not intended to diagnose, treat, cure or prevent disease. All information provided on this web site or any information contained on or in any product label or packaging is for informational purposes only and is not intended as a substitute for advice from your physician or other health care professional. You should not use the information on this web site for diagnosis or treatment of any health problem. Always consult with a healthcare professional before starting any new vitamins, supplements, diet, or exercise program, before taking any medication, or if you have or suspect you might have a health problem.
Advertising Disclosure:
Pepesplants.com is a participant in the Amazon Services LLC Associates Program and also Googles affiliate advertising program. The programs provide a means for web sites to earn revenues from advertising and or sales.
Content Disclosure
Use all information on this site at your own risk.
The content here is based on the publishers personal experience in the green industries.
Although every reasonable effort has been made to ensure the accuracy of the information contained on this site, absolute accuracy cannot be guaranteed. This site, and all information and materials appearing on it, are presented to the user "as is" without warranty of any kind, either express or implied
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Site created and managed by Pepe's Fruit Trees. Copyright 2024 - All Right Reserved