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| Primary Nutrients |
Function | DeficiencySymptoms | *Solutions |
| Nitrogen | Vigorous growth & dark green color | Light green leaves; stunted growth |
Dried Blood, Garden Manure, Cottonseed Meal, Ammonium Sulfate, Urea |
| Phosporus | Root development & flowering |
Smaller yields of Seeds & fruit; purplish leaves, stems & branches; |
Rock Phosphate, Bone Meal, Single Super Phosphate, Triple Super Phosphate |
| Potassium | Overall hardiness & disease resistance |
Reduced yields; Spotted or curled leaves; Weak root system | Sulfate of Potash, Sulfate of Potash Magnesia, Muriate of Potash, Greensand |
| Secondary Nutrients |
Function | Deficiency Symptoms | *Solutions |
| Calcium | Plant vigor; Aids in uptake of nutrients |
Deformed terminal leaves; Poor root growth | Garden Lime, Garden Gypsum |
| Magnesium | Essential part of chlorophyll |
Yellowing of older leaves | Garden Lime, Sulfate of Potash Magnesia |
| Sulfur | Dark green color; Seed production |
Yellow leaves; Stunted, spindly plants |
Garden Sulfur, Sulfate of Potash, Gypsum |
| Trace Nutrients |
Function | Deficiency Symptoms | |
| Boron | Increases flowering & fruit development |
Terminal buds die; Less flowers & fruit develop |
Garden Manure, Bone Meal |
| Chlorine | Helps control water loss & moisture stress | Plants wilt; yellow leaves | Muriate of Potash, Garden Manure, Greensand |
| Cobalt | Improves growth & transpiration |
Reduced growth and yellowing of foliage |
Greensand, Kelp, Cottonseed Meal |
| Copper | Helps produce chlorophyll | Yellow, wilted leaves; Lack of flowering |
Garden Manure, Greensand |
| Iron | Promotes dark green leaves |
Yellow leaves | Greensand, Garden Manure, Cottonseed Meal |
| Manganese | Helps produce chlorophyll | Intervenous chlorosis in younger leaves |
Garden Manure, Greensand |
| Molybdenum | Essential in some enzyme systems | Pale green, rolled or cupped leaves | Greensand, Lime (makes it more available) |
| Nickel | Enzyme Producton | Yellow Leaves | Greensand |
| Sodium | Aids water regulation & photosynthesis | Plants wilt | Kelp, Garden Manure, Bone Meal, Greensand |
| Zinc | Enzyme & growth hormone production |
Yellow leaves, Rosetted (clustered) leaves |
Garden Manure, Greensand, Cottonseed Meal |