TIP #17

Proper plant nutrition is important, here are some common sources here.

The idea is simple. Plant an extra row of vegetables, and donate the harvest to your local food bank or shelter.

Nutrient List


NPK values for some common sources.

Note: unless specified I'm taking other people's word for the values, at least until the lab equipment arrives.

Nutrient SourceNitrogen (N)Phosphorus (P)Potassium (K)
Urea4600
Ammoniated Super-Phosphate35519Ca:17.20 S:12.00
Ammonium Nitrate33.500
Ammoniated Phosphate Nitrate27150
Ammonium Sulfate2100S:23.70
RAW - Nitrogen (ammonium sulfate)2000
Diammonium Phosphate18500
Sodium Nitrate1600
Ammonium Phosphate Sulfate15300S:15.40
Ammonium Polyphosphate15500
Potash (Nitrate of Soda)15014
Calcium Nitrate1500Ca:19.40 Mg:1.50
Potassium Nitrate (Nitrate of Potash)13044
Manure, Seabird (Peruvian)12122.5Micronutrients
Meal, Blood 1200Micronutrients
Fish Powder120.31Micronutrients
Monoammonium Phosphate (MAP)12520
Manure, Bat (high N)1031Micronutrients
General Hydroponics - MaxiGro10514Ca:6 Mg:2.00 S:3.00 Fe: 0.120 Mn:
Meal, Fish1062
Meal, Corn Gluten900Micronutrients
RAW - Phosphorus (monoammonium phosphate)9610
RAW - Calcium Mag900Ca:15 Mg:3.00
Meal, Feather700
General Hydroponics - FloraNova Grow7410Micronutrients Ca:4 Mg:1.50 S:2.00 Fe: T Mn: Bo: Cu: Zn:Cl: Mo:
Meal, Soybean721
Meal, Cottonseed60.41.5Micronutrients
Meal, Neem (whole)612
General Hydroponics - FloraMicro501Micronutrients Ca:5 Fe: T Mn: Bo: Cu: Zn:Mo:
General Hydroponics - FloraDuo A506Micronutrients Ca:3 Mg:T Fe: Mn: Bo: Cu: Zn:Mo:
General Hydroponics - MaxiBloom51514Micronutrients Ca:5 Mg:3.50 S:4.00 Fe: T
Emulsion, Fish522Micronutrients
General Hydroponics - FloraNova Bloom487Micronutrients Ca:4 Mg:2.00 S:2.00 Fe: T Mn: Bo: T Cu: Zn:T Cl: Mo:
General Organics - BioThrive Grow433Micronutrients Mg:0.50 Fe: T
Enzymatically Digested Fish422
Botanicare - Kind Base400Ca:5
Nutrifield - Coco B3.200.5
Manure, Bat (high P)3101Micronutrients
Meal, Bone3250Micronutrients Ca:25
Botanicare - Pure Blend Pro Grow 324Ca:1 Mg:0.50
Nutrifield - Elements Grow B302
Nutrifield - Elements Bloom B305
Manure, Rabbit2.31.40.8Micronutrients
Compost, Vermi21.51.5Micronutrients Ca:3 Mg:0.50 S:T Fe: 0.500 Bo: T Cu: T Zn:T Mo: T
Meal, Clover200Micronutrients Ca:T
Coffee Grounds20.40.7Micronutrients
Meal, Alfalfa (Pellets)212Micronutrients
General Hydroponics - FloraGrow216Mg:0.50
General Hydroponics - KoolBloom24528Mg:1.00 S:1.50
General Organics - BioThrive Bloom244Micronutrients Mg:0.50 Fe: T
General Organics - Bio Marine (squid) 231
General Organics - BioMarine231
Botanicare - Kind Grow224Mg:1.50 S:2.00 Fe: 0.120
Compost1.511Micronutrients
Botanicare - Rhizo Blast1.20.51.2
Manure, Chicken1.10.80.5Micronutrients
Manure, Cow111Micronutrients
Manure, Horse111Micronutrients
Manure, Sheep111Micronutrients
Manure, Seabird1101Micronutrients
Meal, Kelp (powdered)104Micronutrients
General Hydroponics - FloraDuo B154Micronutrients Mg:1.50 S:2.00 Fe: Mn: Bo: Cu: Zn:Mo:
General Organics - BioRoot111Micronutrients
Botanicare - Pure Blend Pro Bloom (soil)145Ca:1 Mg:0.50
Nutrifield - Coco A142Micronutrients
Nutrifield - Elements Grow A113
Nutrifield - Elements Bloom A123
Manure, Steer0.70.30.4Micronutrients
Manure, Duck0.61.40.5Micronutrients
General Organics - BioBud0.50.11Micronutrients
General Organics - BioWeed0.200.3Micronutrients
Greensand01.57Micronutrients
Rock Phosphate0250
Wood Ash014Micronutrients
Granite Meal005Micronutrients
General Hydroponics - FloraBloom054Micronutrients Mg:1.50 S:1.00
General Hydroponics - Liquid KoolBloom01010
General Organics - CaMg+ 000Ca:5 Mg:1.00
General Organics - Humic Acids, Diamond Black001
Phosphoric Acid0600
Superphosphate0200Ca:20.10 S:11.90
Potassium Magnesium Sulfate 0022Mg:11.20 S:22.70
Potassium Sulfate (Sulfate of Potash)0050Mg:1.20 S:17.60
Superphosphate, concentrated0500Ca:13.60 S:1.40
Potassium Chloride (Muriate of Potash)0060
Calcium Sulfate (Gypsum)000Ca:20 S:15.00
Iron Sulfate000S:10.00 Fe: 20.000
General Organics - Diamond Black001
Monopotassium Phosphate (MKP)05234
Magnesium Sulfate (Epsom Salt)000Micronutrients Mg:10.00 S:13.00
Iron Chelate (sequestered iron)000Fe: 10.000
Boric Acid000Micronutrients Bo: 17.000
Manganese Chloride000Micronutrients Cl: 56.0000
Zinc Sulfate000S:32.00 Zn:65.0000
Copper Sulfate000S:20.00 Cu: 40.0000
Molybdic Acid000
Potassium Phosphate05234
Soft Rock Phosphate040.3Ca:16 Mg:0.50 S:0.30 Fe: 1.670 Cu: Zn:0.3000
Langbeinite0021Mg:10.00 S:21.00
RAW - Kelp Marine009
RAW - Humic Acid + Potash004
RAW - Carbohydrates001
RAW - Full Up001
RAW - Potassium (potassium sulfate)0050
Botanicare - Kind Bloom066Mg:1.50 S:2.75 Fe: 0.120
Botanicare - Rhizo Gel000

For the purposes of this list, "micronutrients" means they provide at least some of them, and "T" represents an itty bitty amount. Over time the dataset will improve, but keep in mind that in some instances; especially with natural materials, the listed values given are rough estimates and will vary with samples from different sources.