Subject of Investigation


110
Soil
120
Land
199
Soil and land, general
210
Water resources
310
River basins
320
Watersheds
330
Wetland and riparian systems
399
Watersheds and river basins, general
410
Air
420
Weather
430
Climate
440
Solar radiation
499
Atmosphere, general/other
510
Wilderness
520
Campgrounds and picnic areas
530
Parks and urban green space
599
Recreational resources, general/other
610
Conifer forests of the North
611
Conifer forests of the South
612
Conifer forests of the West
613
Mixed conifer-broadleaf forests
620
Broadleaf forests of the North
621
Broadleaf forests of the South
622
Broadleaf forests of the West
630
Chaparral and shrub lands
640
Tropical forests
650
Wood and wood products
660
Paper and pulp derived products
670
Short rotation woody crops, including holiday trees
680
Other products of the forest
699
Trees, forests, and forest products, general
710
Desert and semidesert shrub land and shinnery
720
Pinyon-juniper
730
Mountain grasslands, meadow, and alpine
780
Grasslands, other
790
Rangelands, other
799
Rangelands and grasslands, general
810
Finfish
811
Shellfish
812
Fish habitats
819
Natural fisheries, other
820
Wild birds
830
Wild animals
840
Fur-bearing animals
850
Wildlife habitats
860
Endangered species
899
Wildlife and natural fisheries, general/other
910
Grapefruit
920
Orange
930
Lemon
999
Citrus, general/other
1010
Banana
1020
Pineapple
1030
Papaya
1040
Mango
1050
Date
1060
Kiwi
1099
Tropical/subtropical fruit, general/other
1110
Apple
1111
Apricot
1112
Cherry
1113
Nectarine
1114
Peach
1115
Pear
1116
Plum
1119
Deciduous tree fruits, other
1120
Blueberry
1121
Cranberry
1122
Strawberry
1123
Raspberry
1129
Berries and cane fruits, other
1130
Table grapes
1131
Wine grapes
1132
Raisin grapes
1139
Grapes, other
1199
Deciduous and small fruits, general/other
1210
Filbert
1211
Pecan
1212
Almond
1213
Walnut
1219
Edible tree nuts, general/other
1310
Potato
1410
Beans (dry)
1411
Beans (fresh, fresh-processed)
1412
Peas (dry)
1413
Peas (fresh, fresh-processed)
1414
Lentil
1419
Leguminous vegetables, other
1420
Melons (includes cantaloupe, muskmelon, watermelon)
1421
Cucumber
1429
Cucurbits, other (includes pumpkin, squash, gourd)
1430
Greens and leafy vegetables (includes endive, lettuce, spinach, turnip-greens, celery, rhubarb, parsley, asparagus)
1440
Cole crops (includes cabbage, kale, broccoli, brussels sprouts, cauliflower, kohlrabi)
1450
Sweet potato
1451
Onion, garlic, leek, shallot
1452
Carrot
1453
Yam
1454
Taro
1455
Cassava (or manioc)
1459
Rhizomes, tubers, bulbs, and root crops, general/other (for potato use 1310)
1460
Tomato
1461
Peppers
1462
Eggplant
1469
Solanaceous and related crops, general/other (for potato use 1310)
1470
Mushrooms and other edible fungi
1480
Sweetcorn
1499
Vegetables, general/other
1510
Corn (for sweetcorn use 1480)
1511
Popcorn
1520
Grain sorghum
1530
Rice
1540
Hard red winter wheat
1541
Hard red spring wheat
1542
Soft red wheat
1543
Soft white wheat (includes club, western)
1544
Hard white wheat
1545
Durum wheat
1549
Wheat, other
1550
Barley
1560
Oats
1570
Rye
1599
Grain crops, general/other (includes buckwheat, millet, triticale)
1610
Pasture
1620
Warm season perennial grasses (includes dallisgrass, bluestems, bermudagrass)
1621
Cool season perennial grasses (includes bluegrass, bromegrass, fescue, orchardgrass, perennial ryegrass, timothy, wheatgrass)
1629
Perennial grasses, other
1630
Summer annual grasses (includes forage sorghums, sudangrass, sorghum-sudangrass hybrids)
1631
Winter annual grasses (includes annual ryegrass)
1639
Annual grasses, other
1640
Alfalfa
1641
Trefoil
1642
Red clover
1643
Crownvetch
1644
Winter annual legumes (includes subterranean clover, arrowleaf clover)
1649
Forage legumes, other
1699
Pasture and forage crops, general/other
1710
Upland cotton
1711
Long fiber cotton
1719
Cotton, other
1720
Kenaf
1730
Hemp
1740
Ramie
1750
Agave
1799
Fiber crops, general/other
1810
Cottonseed (for meal, oil, etc.)
1820
Soybean
1830
Peanut
1840
Castor
1841
Crambe
1842
Flax
1843
Safflower
1844
Sunflower
1845
Jojoba
1846
Coconut
1847
Palm
1848
Canola
1849
Cuphea
1850
Lesquerella
1851
Meadowfoam
1852
Rape
1853
Sesame
1854
Chinese tallow
1855
Tung
1899
Oilseed and oil crops, general/other
1910
Flue-cured tobacco
1920
Burley tobacco
1930
Cigar-type tobacco
1999
Tobacco, general/other
2010
Sugar beet
2020
Sugar cane
2030
Sweet sorghum
2099
Sugar crops, general/other
2110
Ornamental trees and shrubs
2120
Herbaceous perennials and decorative greens
2121
Cut flowers, foliage, and greens
2122
Potted plants
2123
Bedding/garden plants
2129
Florist crops, other
2130
Turf (includes bentgrass, bermudagrass, bluegrass, dichondra, fescue, ryegrass, zoysia)
2140
Ground covers
2150
Aquatic plants
2160
Arboreta and botanical gardens
2199
Ornamentals and turf, general/other (includes cacti)
2210
Chemurgic crops
2220
Medicinal crops, non-narcotic
2221
Narcotic plants
2230
Hops
2231
Mint
2232
Coffee
2233
Cocoa
2234
Tea
2235
Herbs and spices
2239
Flavoring and beverage plants, other
2240
Guayule
2241
Hevea
2242
Gums
2249
Rubber, gum, and resin plants, other
2299
Miscellaneous and new crops, general/other
2410
Cross-commodity research--multiple crops
2420
Noncrop plant research
2499
Plant research, general
3010
Honey bees
3020
Honey and honey products
3030
Non-honey apiary products
3090
Other Pollinators
3099
Bees, honey, and other pollinators, general
3110
Insects
3120
Spiders, mites, ticks, and other arthropods
3130
Nematodes
3199
Invertebrates, general/other
3210
Egg-type chicken, live animal
3220
Meat-type chicken, live animal
3230
Turkey, live animal
3240
Duck and goose, live animal
3250
Ratites (e.g., ostrich, emu, rhea), live animal
3260
Poultry meat
3270
Eggs
3280
Other poultry products
3299
Poultry, general/other
3310
Beef cattle, live animal
3320
Meat, beef cattle
3330
Other beef cattle products
3399
Beef cattle, general/other
3410
Dairy cattle, live animal
3420
Butter
3430
Cheese
3440
Meat, dairy cattle
3450
Milk
3460
Ice cream
3470
Other dairy cattle products
3499
Dairy cattle, general/other
3510
Swine, live animal
3520
Meat, swine
3530
Other swine products
3599
Swine, general/other
3610
Sheep, live animal
3620
Meat, sheep
3630
Wool fiber
3699
Sheep and wool, general/other
3710
Catfish
3711
Trout
3712
Salmon
3713
Striped bass
3714
Tilapia
3715
Baitfish (minnows and shiners)
3716
Ornamental finfish
3719
Other cultured finfish
3720
Crawfish
3721
Marine shrimp
3722
Freshwater shrimp
3723
Oysters
3724
Clams and mussels
3725
Ornamental shellfish
3729
Other cultured shellfish
3799
Cultured aquatic animals, general/other
3810
Horses, ponies, and mules
3820
Goats, meat and mohair
3830
Pets (companion animals)
3840
Laboratory animals
3899
Other animals, general
3910
Cross-commodity research--multiple animal species
3999
Animal research, general
4010
Bacteria
4020
Fungi (includes yeast)
4030
Viruses
4040
Viroids, mycoplasmas, spiroplasmas, etc.
4050
Protozoa
4099
Microorganisms, general/other
5010
Food (not readily associated with specific plant and animal products)
5110
Clothing/apparel
5120
Textiles
5199
Clothing and textiles, general
5210
Fertilizers
5220
Pesticides (includes herbicides, insecticides, fungicides, etc.)
5230
Feed and feed additives
5240
Seeds and other plant propagules
5299
Agricultural supplies, general/other
5310
Machinery and equipment
5320
Houses (human residences), furniture, household equipment, non-textile furnishings
5330
Farm structures and related facilities
5340
Nonfarm structures and related facilities, including those used in marketing, storing, processing, and distributing functions, and for recreational uses
5350
Domestic and community water supply facilities and systems
5360
Drainage and irrigation facilities and systems
5370
Sewage and waste disposal facilities and systems
5399
Structures, facilities, and equipment, general/other
6010
Individuals (as workers, consumers, members of society)
6020
The family and its members
6030
The farm as an enterprise
6040
Real estate
6050
Communities, areas, and regions, including states and their institutions and organizations
6099
People and communities, general/other
6110
Economy of the United States and sectors thereof
6120
International economy and sectors thereof
6199
Economy, general/other
6210
Farmer cooperatives
6220
Marketing, processing, and supply firms other than cooperatives
6230
Marketing systems and sectors thereof
6299
Marketing, general/other
7010
Biological Cell Systems
7110
Research on research management (not research management per se)
7210
Remote sensing equipment and technology
7220
Sensory evaluation/analysis methods (human senses)
7299
Research equipment and methods, general/other
7310
Experimental design and statistical methods
7410
General technology