CROP SCIENTIFIC NAME

% NITROGEN

PLANT PART

Barley (Hordeum vulgare)

2.38

Top

Cassava (Manihot esculenta)

5.50

Leaf

Cassava (Manihot esculenta)

1.85

Stem

Corn (Zea mays L.)

4.25

Top

Corn (Zea mays L.)

3.25

Leaf

Corn (Zea mays L.)

3.35

Ear Leaf

Cotton (Gossypium hirsutum)

4.00

Stem

Cotton (Gossypium hirsutum)

3.65

Stem

Oat (Avena sativa)

2.50

Above ground

Peanut (Arachis hypogaea)

4.00

Upper

Peanut (Arachis hypogaea)

4.00

Upper

Rice (Oryza sativa)

3.20

Leaf

Rice (Oryza sativa)

2.90

Leaf

Rye (Secale cereale)

4.50

Above ground

Sorghum (Sorghum vulgare and S. bicolor)

4.30

Above ground

Sorghum (Sorghum vulgare and S. bicolor)

3.70

Leaf

Sorghum (sorghum vulgare and S. bicolor)

3.65

Leaf below head

Sorghum (sorghum vulgare and S. bicolor)

3.50

Leaf below head

Soybean (Glycine max)

4.76

Leaf

Sugar Beet (Beta vulgaris)

4.65

Leaf

Sugar Cane (Saccharam officinarum)

2.30

Leaf

Tobacco (Nicotiana tabacum)

5.00

Leaf

Tobacco (Nicotiana tabacum)

5.80

Leaf

Tobacco (Nicotiana tabacum)

5.10

Leaf

Tobacco (Nicotiana tabacum)

4.81

Leaf

Tobacco (Nicotiana tabacum)

3.88

Leaf

Wheat, Winter (Triticum aestivum)

2.38

Top leaves

Wheat, Spring (Triticum aestivum)

2.50

Above ground

Aglaonema, Chinese evergreen (Aglaonema communtatum)

3.40

Leaf

Allamanda (Allamanda cathartica)

3.00

Leaf

Alstromeria (Alstromeria sp.)

4.65

Leaf

Anthurium (Alnthurium andraeanum)

2.30

Leaf blade

Aphelandra or Zebra plant (Aphelandra squarrosa)

2.50

Leaf

Aralia, False (Dizygotheca elegantissima)

3.00

Leaf

Arborvitae (Thuja orientalis)

1.89

Tips

Asparagus Fern (Asparagus retrofractus)

2.30

Leaf

Asparagus, Myers, Sprengeri (Asparagus densiflorus)

2.00

Leaf

Azalea (Rhododendron indicum)

2.00

Leaf

Azalea, Indian hybrid (Rhododendron sp. Hybrids)

2.50

Leaf

Baby’s Breath (Gypsophilia paniculta)

5.15

Leaf

Begonia, Rieger (Begonia x hiemalis)

4.75

Leaf

Begonia, Wax leaf (Begonia x semperflorans-cultorium)

5.00

Leaf

Bird of Paradise (Strelitzia reginae)

1.75

Leaf

Bougainvillea (Bougainvillea sp.)

3.50

Leaf

Boxwood, Japanese (Buxus macrophylia var. japonica)

3.30

Leaf

Bromeliad (Aechmea fasciata)

1.75

Leaf

Cactus, Christmas (Schlumbergera bridgesii)

3.65

Leaf

Caladium (Caladium)

4.05

Midribs

Calathea (Calathea sp. )

3.25

Leaf

Carissa or Natal Plum (Carissa grandiflora)

2.65

Leaf

Carnation (Dianthus caryophyllus)

4.20

5th & 6th

Leaf pairs

Chalkas, Orange jasmine (Murraya paniculata)

2.50

Leaf

Chrysanthemum, mum or pompon (Chrysanthemum morifolium)

 

5.00

4th leaf

from

Leaf

Chrysanthemum, mum or pompon (Chrysanthemum morifolium)

 

4.25

4th leaf

from

Leaf

Coco plum (Chrysobalanus Icaco)

2.50

Leaf

Coffee (Coffee arabica)

3.00

Leaf

Cotoneaster (Cotoneaster apiculata)

2.80

Leaf

Croton (Codiaeum variegatum)

2.25

Leaf

Crown of Thorns (Euphorbia milli)

3.00

Leaf

Cyclamen (Cyclamen persicum)

2.36

Top

Dieffenbachia (Dieffenbachia maculata)

3.10

Leaf blades

Dogwood (Cornus Alba and C. racemosa)

2.21

Leaf

Dracena Godsefflana (Dracena surculosa)

2.40

Leaf

Dracena Janet Craig (Dracena deremensis ‘Janet Craig’)

2.50

Leaf

Dracena Corn plant (Dracena fragrans ‘Massangeana’)

2.85

Leaf

Dracen Sanders (Dracena Sanderana)

3.00

Leaf

Dracena Reflexa (Dracena thaliodes)

3.00

Leaf

Dracena Warnecki (Dracena deremensis "Warneckii")

 

3.25

 

Leaf

Eugenia (Eugenia sp.)

2.00

Leaf

Euonymus (Euonymus alatus)

2.40

Leaf

Fern, Birdsnest (Asplenium nidus)

2.65

Frond

Fern, Boston (Nephrolepsis exalta "Bostoniensis")

2.75

Frond

Fern, Leatherleaf (Rumohra adiantiformis)

2.50

Frond

Fern, Maidenhair (Adiantum pedatum)

2.15

Frond

Fern, Pteris (Pteris sp.)

2.65

Frond

Ficus, Benjamina (ficus benjamina or nitida)

2.15

Leaf

Ficus, Decora, Rubber Tree (Ficus elastica ‘Decora’)

1.90

Leaf

Ficus, fiddleleaf Fig (Ficus lyrata)

1.80

Leaf

Forsythia (Forsythia x intermedia)

2.16

Leaf

Forsythia (Forsythia intermodia)

1.30

Shoot

Gardenia (Gardenia jasminoides)

2.25

Leaf

Geranium (Pelargonium x hortorum)

4.15

Leaf

Gerbera or Transvaal daisy (Gerbera jamesonii)

2.5

Leaf

Gladioius (Gladiolus x hortulanus)

4.25

Leaf

Gloxinia (Sinnirgia speciosa)

4.00

Leaf

Hibiscus (Hibiscus rosa-sinensis)

3.50

Leaf

Holly, American (llex opaca)

1.85

Leaf

Holly, Chinese (llex cornuta)

2.05

Leaf

Holly, Japanese (llex crenata)

2.30

Leaf

Hydrangea (Hydrangea macrophylla)

4.25

Leaf

Ixora (Ixora coccinea)

2.40

Leaf

Ivy, English (Hedera Helix)

2.64

Leaf

Jasmine, wax (Jasminum simplicifolium)

3.00

Leaf

Juniper (Juniperus sp.)

2.00

Shoots

Juniper, Bar Harbour (Juniperus horizontalis)

2.07

Tips

Juniper, Pfitzer Compacta (Juniperus chinensis, ‘Pfitzeriana compacta’)

 

2.26

 

Tips

Kalanchoe (Kalanchoe blossfeldiana)

3.35

4th leaf from

Tip

Leea or Hawaiian Holly (Leea coccinea)

2.75

Leaf

Ligustrum (Ligustrum)

2.60

Leaf

Lily, Day (Hemenotallis sp.)

4.00

Leaf

Lily, Easter (Lillium longiflorum)

4.05

Leaf

     
Lipstick plant (Aeschynanthus pulcher)

2.45

Leaf

Liriope (Liriope Muscari)

2.50

Leaf

Malpighia (Malpighia sp.)

2.75

Leaf

Mandevilla, Dipladenia (Mandevilla splendens)

2.45

Leaf

Maranta, Rabbit’s Foot (Maranta kerchoviana)

2.50

Leaf

Marble Queen, Pothos (Scindapsus aureus)

3.10

Leaf

Monkey Puzzle Tree (Araucaria bidwillii)

1.85

Leaf

Nepthytis (Syngonium Podophyllum)

3.00

Leaf

Norfolk Island Pine (Araucaria excelsa orheterophylla)

2.15

Leaf

Olive, Black (Bucida buceras)

2.30

Leaf

Orchid, Cattleya (Cattleya sp.)

2.00

Leaf

Orchid, Cymbidium (Cymbidium sp.)

2.00

Leaf

Orchid, Lady-slipper or Cypripedium (Cypripedium sp.)

2.90

Leaf

Orchid, Phalenopsis or Moth (Phalenopsis sp.)

2.75

Leaf

Palm, Areca (Chrysalido-carpus lutescens)

3.00

Leaf

Palm, Bamboo or Selfritzil (Chamodorea erumpens)

3.00

Leaf

Palm, Chamadorea or Parlor (Chamadorea elegans)

3.00

Leaf

Palm, Kentia (Howea Forsternana)

2.50

Leaf

Palm Pony tail (Beaucarnea Recurvata)

1.75

Leaf

Palm, Rhapis or Lady (Rhapis excelsa)

2.30

Leaf

Palm, Robellini (Phoenix Roebelenii)

2.40

Leaf

Peperomia, Green or Variegated (Peperomia obtusifolia)

3.70

Leaf

Philodendron cordatum or Heart-leaf (Philodendron scandens Sub. Oxycardium)

 

3.00

 

Leaf

Philodendron hastatum (Philodendron hastatum)

3.25

Leaf

Philodendron pandurforme (Philodendron pandurforme)

3.50

Leaf

Philodendron Pertusum, Monstera (Monstera deliciosa)

4.00

Leaf

Philodendron, Selloum (Philodendron selloum)

4.25

Leaf

Pittosporum (Pittosporum tobira)

2.15

Leaf

Podocarpus (Podocarpus macrophyllus)

2.75

Leaf

     
Poinsettia (Euphorbia pulcherrima)

5.00

Leaf

Rhododendron (Rhododendron)

1.70

Leaf

Rose (Rosa odorata)

4.00

Leaf

Salvia (Salvia splendens)

3.75

Leaf

Sansevieria (Sansevieria Laurentii)

2.35

Leaf

Schefflera, Umbrella tree (Brassaia actinophylia)

3.00

Leaf

Snapdragon (Antirrhinum majus)

4.40

Leaf

Spathiphyllum (Spathiphyllum sp.)

4.40

Leaf

Spathiphyllum (Spathiphyllum sp.)

3.90

Leaf

Spider Plant (Chlorophytum comosum

2.35

Leaf

Spirea (Spirea japonica ‘alpina’)

2.24

Leaf

Spirea (Spirea nipponica)

2.42

Leaf

Statice

4.75

Leaf

Syringa (Syringa sp.)

2.05

Leaf

Taxus (Taxus x media)

3.00

Leaf

Viburnum (Viburum suspensum)

2.00

Leaf

Violet, African (Saintpaulia ionantha)

4.50

Leaf

Yucca (Yucca elephantipes)

2.15

Leaf

Alfalfa (Medicago sativa)

4.75

Top

Birds-foot trefoil (Lotus corniculatus)

4.25

Leaf

Clover, Alsike (Trifolium hybridum)

.38

Top

Clover, Ladino or White (Trifolium repens)

4.75

Leaf

Clover, Red (Trifolium pratense)

3.75

Top

Clover, Subterranean (Trifolium subterraneum)

3.25

Leaf

Desmodium, Greenleaf (Desmodium intortum)

4.00

Leaf

Grains, Small

2.50

Leaf

Grass, Bahia (Paspalum notatum)

2.80

Leaf blades

Grass, Bermuda Fairways & Lawns (Cynodon dactylon hybrids)

 

4.00

 

Clippings

Grass, Bermuda, Greens and Tees (Cynodon dactylon hybrids)

5.00

Clippings

Grass, Bluejoint (Calamagtostis canadensis)

2.52

Tops

Grass, Brome (Bromus inermis)

2.75

Stem

Grass, Coastal Bermuda (Cynodon dactylon)

3.10

Tops

Grass, Creeping Bent (Agrostis palustris)

5.25

Clippings

Grass, Crested Wheatgrass (Agropyron desertorum)

3.28

Tops

Grass, Kentucky Blue (Poa pratensis)

3.05

Clippins

3.70

Top

Grass, Pangola (Digitaria decumbens)

2.10

Tops

Grass, Perennial Rye (Lolium perenne)

4.75

Tops

Grass, Prairie (Bromus uniloides)

2.76

Tops

Grass, Sudan and Sorghum-Sudan (Sorghum sudanese and Sorghum vulgare)

 

2.75

 

Tops

Grass, St. Augustine (Stenotaphrum decundatum)

2.45

Clippings

Grass, Switch (Panicum virgatum)

1.04

Tops

Grass, Tall Fescue (Festuca arundinacea)

3.60

Tops

Millet (Setaria italica)

3.25

Whole top

Siratro (Macroptilium atropurpureum)

2.60

5th leaf

Stylo (Stylosanthes humilis)

3.25

Top

Timothy (Phleum pratense)

1.11

Top

Almond (Prunus amygdalus)

2.35

Shoot

Apple (Malus spp.)

2.25

Midshoot

Apricot (ship) (Prunus ameniaca)

2.25

Midshoot

Apricot (can) (Prunus ameniaca)

2.75

Midshoot

Avocado (Persea americana)

1.80

Leaves

Banana (Musa sp.)

4.00

Leaves

Banana (Musa sp.)

2.75

Leaves

Blueberry, Highbush (Vaccinum, corymbosum)

1.85

Midshoot

Blueberry, Rabbit Eye (Vaccinum ashei)

1.45

Midshoot

Cashew (Anacadium occidentale)

2.20

4th leaf

Cashew (Anacadium occidentale)

1.68

4th leaf

Cherry, Sour (Prunus cerasus)

2.80

Midshoot

Cherry, Sweet (Prunus avium)

2.55

Midshoot

Cranberry (vaccinum macrocarpon)

1.00

Leaf

Currant, Black (Ribes Nigrum)

2.25

Leaves

Fig (Ficus carica)

2.25

Midshoot

Grape (Vitis labrusca & hybrids)

2.20

Flower clusters

Grape (Vitis vinifera)

2.15

Bunch clusters

Grape (Vitis vinifera)

2.35

Flower clusters

Grape, Muscadine (Vitis rotundifolia)

1.90

Bunch cluster

Grapefruit (Citrus paradisi)

2.70

Leaf

Grapefruit (Citrus paradisi)

2.30

Leaves

Hazelnut (Corlus avellana)

2.45

Midshoot

Lemon (Citrus limon)

2.45

Leaves

Lime, Persian (Citrus aurantifolia Tahiti)

2.70

Shoots

Macademia (Macadamia ternifoia)

2.00

Midshoot

Mandarin or Tangerine (Citrus reticulata)

3.20

Shoots

Mango (Mangifera indica)

1.25

Leaves

Olive (Olea europa)

2.00

Midshoot

Orange, Navel and Valencia (citrus sinensis)

2.85

Leaves

Orange, Navel and Valencia (citrus sinensis)

2.55

Shoots

Papaya (Carica papaya)

1.76

Leaf

Peach (Prunus Persica)

3.25

Spurs

Pear (Pyrus communis)

2.50

Midshoot

Pecan (Carya illinoensis)

3.10

Mid-portion

Pineapple (Aranus comosus)

1.60

Leaf

Plum or Prune (Prunus domestica)

2.70

Mid-shoot

Raspberry (Rubus idaeus)

3.25

Leaves

Strawberry (Fragaria sp.)

3.25

Leaves

Walnut (Juglans regia)

2.88

Leaflets

Ash, European (Sorbus aucuparia)

3.04

Leaves

Ash, White (Fraxinus americana)

2.00

Leaves

Bassswood or Linden (Tilia sp.)

2.65

Leaves

Basswood or Linden (Tilia sp.)

3.57

Leaves

Beech (Fagus grandifolia)

2.35

Leaf

Birch, black (Betula nigra)

1.48

Leaf

Birch, white (Betula papyrifera)

2.52

Leaves

Birch, yellow (Betula alleghaniensis)

1.45

Leaves

Birch, yellow (Betula verrucosa)

4.30

Seedlings

Cedar, Western Red (Thuja plicata)

1.07

Needles

Cherry, black (Prunus serotina)

2.60

Leaves

Deciduous Trees

2.40

Leaves

Evergreen Trees

2.11

Leaves

Eucalyptus (Eucalyptus deglupta)

2.30

Leaves

Eucalyptus (Eucalyptus grandis)

1.27

Leaf

Eucalyptus, Southern Blue-Gum (Eucalyptus globulus)

1.18

Leaves

Fir, balsam or alpine (Abies balsamea)

1.38

Needles

Fir, balsam or amabilis (Abies amabitis)

.95

Needles

Fir, Douglas (Pseudotsuga mennziesii)

1.90

Needles

Fir, douglas (Pseudotsuga mennziesii)

1.16

Needles

Fir, Douglas (Pseudotsuga mennziesii)

1.38

Needles

Hawthorn (Crataegus Phaenopyrum)

1.48

Leaves

Hemlock, Western (Tsuga heterophylia)

.86

Needles

Honeylocust, moraine (Gleditsia triacanthos var. nermis)

2.73

Midshoot

Larch, Japanese (Larix Kaempferi)

2.70

Needles

Maple, Black (Acer nigrum)

1.83

1st Leaf

Maple, mountain (Acer spicatum)

.17

Twigs/leaves

Maple, Red (Acer rubrum)

2.61

Leaf

Maple, Sugar (Acer saccharum)

2.75

Leaves

Oak (Quercus sp.)

2.45

Leaves

Oak, California Live (Quercus agrifolia)

1.18

Leaves

Oak, Pin (Quercus palustris)

1.97

1st Leaf

Pine, Corsican (Pinus Laricio)

1.50

Needles

Pine, Jack (Pinus Banksiana)

1.25

Needles

Pine, Loblolly (Pinus Taeda)

1.03

Needles

Pine, Lodgepole (Pinus contorta ‘latifolia’)

1.49

Needles

Pine, Radiata (Pinus radiata)

1.86

Needles

Pine, Red (Pinus resinosa)

1.21

Needles

Pine, Scotch (Pinus sylvestris)

1.79

Branch

Pine, Slash (Pinus elliottii)

2.75

Needles

Pine, White (Pinus strobus)

2.28

Tips

Pine, White (Pinus strobus)

1.48

Needles

Pine, Western yellow (Pinus ponderosa)

1.71

Tips

Spruce, Colorado (Picea Pungens)

2.10

Tips

Spruce, Engelman (Picea engelmannii)

1.14

Needles

Spruce, Norway (Picea Abies)

1.81

Tips

Spruce, Red (Picea rubens)

1.11

Needles

Spruce, Sitka (Picea sitchensis)

2.40

Top

Sycamore (Platanus occidentalis)

1.81

Blades

Asparagus (Asparagus officinalis L.)

5.00

Top fronds

Asparagus (Asparagus officinalis L.)

3.25

Top fronds

Bean, snap (Phaseolus vulgaris L.)

5.50

Leaves

Beet, table (Beta vulgaris L.)

4.75

Leaf

Broccoli, (Brassica oleracea, Botrytis group)

4.35

Leaf

Brussel sprouts, (Brassica oleracea, Gemmifera group)

4.30

Leaf

Cabbage (Brassica oleracea, Capitata Group)

4.00

Top

Cabbage (Brassica oleracea, Capitata Group)

4.30

Wrapper leaf

Cabbage (Brassica oleracea, Capitata Group)

4.15

Wrapper leaf

Cabbage (Brassica olerecea, Capitata Group

3.25

Wrapper leaf

Cabbage, Chinese (Brassica oleracea, Alboglabra Group)

5.00

Leaf

Cabbage, Chinese (Brassica rapa Pekinensis Group

3.75

Leaf

Cantaloupe-muskmelon (Cucumis melo, Reticulatus Group or honeydew, Cucumis melo, /ndorus Group

 

 

5.00

 

 

5th leaf

Cantaloupe-muskmelon (Cucumis melo, Reticulatus Group or honeydew, Cucumis melo, /ndorus Group

 

 

4.55

 

 

5th leaf

Carrot (Daucus carota L.)

2.80

Leaf

Carrot (Daucus carota L.)

3.25

Oldest leaf

Cauliflower (Brassica oleracea, Botrytis Group)

3.90

Leaf

Celery (Apium graveolens var. dulce Mill.)

1.80

Leaves

Celery (Apium graveolen var. dulce Mill.)

1.10

Leaves

Collards, (Brassica oleracea, Acephala Group

4.50

Leaf

Corn, sweet (Zea mays var. rugosa)

4.25

5th leaf

Corn, sweet (Zea mays var. rugosa)

4.00

5th leaf

Corn, sweet (Zea mays var. rugosa)

3.10

5th leaf

Corn, sweet (Zea mays var. rugosa)

2.75

5th leaf

Corn, sweet (Zea mays var. rugosa)

2.45

5th leaf

Cucumber, field (Cucumis sativus L.)

5.25

5th leaf

Cucumber, European type (Cucumis sativus L.)

5.15

5th leaf

Cucumber, field (cucumis sativus L.)

4.75

5th leaf

Eggplant (Solanum Melongena L.)

5.00

Leaf blades

Endive or Escarole (Cichorium endiva L.)

4.65

Oldest leaf

Garlic (Allium sativum L.)

4.70

Leaf

Garlic (Allium sativum L.)

3.95

Leaf

Garlic (Allium sativum L.)

3.20

Leaf

Horseradish (Amoracia rusticana L.)

2.75

Leaf

Kale (Brassica oleraces, Acephala Group)

4.30

Leaf

Kohirabi (Brassica ileracea, Gongylodes Group)

4.50

Leaf

Lettuce, Boston type (latuca sativa L)

5.10

Oldest leaf

Lettuce, Boston type (Lactuca sativa L.)

4.50

Wrapper leaf

Lettuce-Cos stype (Lactuca sativa L.)

4.00

Wrapper leaf

Lettuce, lthaca type (Lactuca sativa L.)

4.40

Wrapper leaf

Onion (Allium, Cepa Group)

5.50

Top

Onions (Allium, Cepa Group)

5.00

Top

Pea, English (Pisum sativum L.)

5.00

Leaflets

Pea, Southern or Black-eyed (Vigna unguiculata unguiculata L.)

4.50

Leaves

Pepper, bell type (Capsicum annum, Grossum Group)

5.00

Leaf

Pepper, bell type (Capsicum annum, Grossum Group)

4.25

Leaf

Potato, Irish (Solanum tuberosum L.)

5.25

Leaf

Potato, Irish (Solanum tuberosum L.)

3.50

Leaf

Potato, Sweet (lpomea batatas L.)

3.90

Leaf

Radish (Raphanus sativu L.)

4.50

Leaf

Spinach (Spinacia oleracea L.)

5.00

Leaf

Spinach (Spinacia oleracea L.)

4.50

Leaf

Squash, (Cucurbita pepo var. melopepo)

5.00

Leaves

Tomato, field (Lycopersicon esculentum)

5.00

Leaves

Tomato, trellis (Lycopersicon esculentum)

4.25

Flower cluster

Tomato, trellis (Lycopersicon esculentum)

3.85

Flower cluster

Tomato, trellis (Lycopersicon esculentum)

3.40

Flower cluster

Tomato, trellis (Lycopersicon esculentum)

2.90

Flower cluster

Tomato, trellis (Lycopersicon esculentum)

2.50

Flower cluster

Tomato, trellis (Lycopersicon esculentum)

2.15

Flower cluster

Turnip, (brassica rapa var Rapifer)

4.25

Leaf

Watercress (Nasturtium officinale)

5.10

Leaves

Watermelon (Citrulius lanatus)

4.75

5th leaf from top

Watermelon (Citrulius lanatus)

4.50

5th leaf from top

Cocoa (Theobroma Cacao)

2.25

Leaf pulvines

Coffee (Coffee arabica

3.00

Leaves

Coffee (Coffee arabica)

2.65

Leaves

Coffee (coffee robusta)

3.00

Leaves

Fababeans (vicia faba)

5.15

Blades

Oil palm (Eaeis guineenis)

1.80

Leaflets

Oil Palm (Elaeis guineenis)

2.83

Frond

Tea (camelia sinensis)

4.30

3rd leaf