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Plant nutrients used in hydroponics are dissolved in the water and are mostly in inorganic and ionic form. Primary among the dissolved cations (positively charged ions) are Ca2+ (calcium), Mg2+ (magnesium), and K+ (potassium); the major nutrient anions in nutrient solutions are NO3 (nitrate), SO2−4 (sulfate), and H2PO4 (dihydrogen phosphate).

Numerous 'recipes' for hydroponic solutions are available. Many use different combinations of chemicals to reach similar total final compositions. Commonly used chemicals for the macronutrients include potassium nitrate, calcium nitrate, potassium phosphate, and magnesium sulfate. Various micronutrients are typically added to hydroponic solutions to supply essential elements; among them are Fe (iron), Mn (manganese), Cu (copper), Zn (zinc), B (boron), Cl (chlorine), and Ni (nickel). Chelating agents are sometimes used to keep Fe soluble. Many variations of the nutrient solutions used by Arnon and Hoagland (see above) have been styled 'modified Hoagland solutions' and are widely used. Variation of different mixes throughout the plant life cycle, further optimizes its nutritional value. Plants will change the composition of the nutrient solutions upon contact by depleting specific nutrients more rapidly than others, removing water from the solution, and altering the pH by excretion of either acidity or alkalinity. Care is required not to allow salt concentrations to become too high, nutrients to become too depleted, or pH to wander far from the desired value.



Featured Products

Humboldt Nutrients Bloom 0-6-5  16oz for Hydroponic Indoor Gardening
Regular price: 6.60
Sale price: 4.95
Humboldt Nutrients Bloom 0-6-5  32oz for Hydroponic Indoor Gardening
Regular price: 11.50
Sale price: 8.78
Humboldt Nutrients Bloom 0-6-5   1 Gallon for Hydroponic Indoor Gardening
Regular price: 29.50
Sale price: 22.38
Humboldt Nutrients Grow 2-1-6  16oz for Hydroponic Indoor Gardening
Regular price: 6.60
Sale price: 4.95
Humboldt Nutrients Grow 2-1-6   32oz for Hydroponic Indoor Gardening
Regular price: 11.50
Sale price: 8.78
Humboldt Nutrients Grow 2-1-6   1 Gallon for Hydroponic Indoor Gardening
Regular price: 29.50
Sale price: 22.38
Humboldt Nutrients Micro 5-0-1  16oz for Hydroponic Indoor Gardening
Regular price: 8.99
Sale price: 6.81
Humboldt Nutrients Micro 5-0-1  32oz for Hydroponic Indoor Gardening
Regular price: 15.50
Sale price: 11.85
Humboldt Nutrients Micro  5-0-1   1 Gallon for Hydroponic Indoor Gardening
Regular price: 35.99
Sale price: 27.21
Humboldt Nutrients Master A  4-0-3 (Amino line) 32oz for Hydroponic Indoor Gardening
Regular price: 23.40
Sale price: 17.55
Humboldt Nutrients Master A 4-0-3 (Amino line) 1 Gallon for Hydroponic Indoor Gardening
Regular price: 69.99
Sale price: 52.65
Humboldt Nutrients Master B  1-5-6 (Amino line)  32oz for Hydroponic Indoor Gardening
Regular price: 23.40
Sale price: 17.55
Humboldt Nutrients Master B 1-5-6 (Amino line)  1 Gallon for Hydroponic Indoor Gardening
Regular price: 69.99
Sale price: 52.65
Dyna-Gro Grow 7-9-5 1 pint for Hydroponic Indoor Gardening
Regular price: 10.99
Sale price: 8.25
Dyna-Gro Grow 7-9-5 1 quart for Hydroponic Indoor Gardening
Regular price: 18.99
Sale price: 14.25
Dyna-Gro Grow 7-9-5 1 gallon for Hydroponic Indoor Gardening
Regular price: 55.99
Sale price: 42.00
Dyna-Gro Bloom 3-12-6 1 pint for Hydroponic Indoor Gardening
Regular price: 10.99
Sale price: 8.25
Dyna-Gro Bloom 3-12-6 1 quart for Hydroponic Indoor Gardening
Regular price: 18.99
Sale price: 14.25
Dyna-Gro Bloom 3-12-6 1 gallon for Hydroponic Indoor Gardening
Regular price: 55.99
Sale price: 42.00

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Plant nutrients used in hydroponics are dissolved in the water and are mostly in inorganic and ionic form. Primary among the dissolved cations (positively charged ions) are Ca2+ (calcium), Mg2+ (magnesium), and K+ (potassium); the major nutrient anions in nutrient solutions are NO3 (nitrate), SO2−4 (sulfate), and H2PO4 (dihydrogen phosphate).

Numerous 'recipes' for hydroponic solutions are available. Many use different combinations of chemicals to reach similar total final compositions. Commonly used chemicals for the macronutrients include potassium nitrate, calcium nitrate, potassium phosphate, and magnesium sulfate. Various micronutrients are typically added to hydroponic solutions to supply essential elements; among them are Fe (iron), Mn (manganese), Cu (copper), Zn (zinc), B (boron), Cl (chlorine), and Ni (nickel). Chelating agents are sometimes used to keep Fe soluble. Many variations of the nutrient solutions used by Arnon and Hoagland (see above) have been styled 'modified Hoagland solutions' and are widely used. Variation of different mixes throughout the plant life cycle, further optimizes its nutritional value. Plants will change the composition of the nutrient solutions upon contact by depleting specific nutrients more rapidly than others, removing water from the solution, and altering the pH by excretion of either acidity or alkalinity. Care is required not to allow salt concentrations to become too high, nutrients to become too depleted, or pH to wander far from the desired value.



Featured Products

Humboldt Nutrients Bloom 0-6-5  16oz for Hydroponic Indoor Gardening
Regular price: 6.60
Sale price: 4.95
Humboldt Nutrients Bloom 0-6-5  32oz for Hydroponic Indoor Gardening
Regular price: 11.50
Sale price: 8.78
Humboldt Nutrients Bloom 0-6-5   1 Gallon for Hydroponic Indoor Gardening
Regular price: 29.50
Sale price: 22.38
Humboldt Nutrients Grow 2-1-6  16oz for Hydroponic Indoor Gardening
Regular price: 6.60
Sale price: 4.95
Humboldt Nutrients Grow 2-1-6   32oz for Hydroponic Indoor Gardening
Regular price: 11.50
Sale price: 8.78
Humboldt Nutrients Grow 2-1-6   1 Gallon for Hydroponic Indoor Gardening
Regular price: 29.50
Sale price: 22.38
Humboldt Nutrients Micro 5-0-1  16oz for Hydroponic Indoor Gardening
Regular price: 8.99
Sale price: 6.81
Humboldt Nutrients Micro 5-0-1  32oz for Hydroponic Indoor Gardening
Regular price: 15.50
Sale price: 11.85
Humboldt Nutrients Micro  5-0-1   1 Gallon for Hydroponic Indoor Gardening
Regular price: 35.99
Sale price: 27.21
Humboldt Nutrients Master A  4-0-3 (Amino line) 32oz for Hydroponic Indoor Gardening
Regular price: 23.40
Sale price: 17.55
Humboldt Nutrients Master A 4-0-3 (Amino line) 1 Gallon for Hydroponic Indoor Gardening
Regular price: 69.99
Sale price: 52.65
Humboldt Nutrients Master B  1-5-6 (Amino line)  32oz for Hydroponic Indoor Gardening
Regular price: 23.40
Sale price: 17.55
Humboldt Nutrients Master B 1-5-6 (Amino line)  1 Gallon for Hydroponic Indoor Gardening
Regular price: 69.99
Sale price: 52.65
Dyna-Gro Grow 7-9-5 1 pint for Hydroponic Indoor Gardening
Regular price: 10.99
Sale price: 8.25
Dyna-Gro Grow 7-9-5 1 quart for Hydroponic Indoor Gardening
Regular price: 18.99
Sale price: 14.25
Dyna-Gro Grow 7-9-5 1 gallon for Hydroponic Indoor Gardening
Regular price: 55.99
Sale price: 42.00
Dyna-Gro Bloom 3-12-6 1 pint for Hydroponic Indoor Gardening
Regular price: 10.99
Sale price: 8.25
Dyna-Gro Bloom 3-12-6 1 quart for Hydroponic Indoor Gardening
Regular price: 18.99
Sale price: 14.25
Dyna-Gro Bloom 3-12-6 1 gallon for Hydroponic Indoor Gardening
Regular price: 55.99
Sale price: 42.00

Featured Categories