The keystone is the catalog of what each plant wants, by growth stage, across light, feed, air, root zone and timing. A crop is complete when it has a growth stage and at least one band in each of light, air and root zone. Most rows come from published sources (FAO, university extension programs) or a live source (the USA National Phenology Network); a few are derived from published numbers with the formula recorded; the rest are OAT's own working values from June 2026, kept until a published number replaces them.
Complete under the KEEP rule
Partial: in the keystone with published numbers so far
| Crop | Scientific name | Family | Numbers | Cultivar groups |
|---|
| Alfalfa | Medicago sativa | Fabaceae | 15 | |
| Almond | Prunus dulcis | Rosaceae | 20 | |
| Apricot | Prunus armeniaca | Rosaceae | 17 | |
| Artichoke | Cynara cardunculus | Asteraceae | 3 | |
| Asparagus | Asparagus officinalis | Liliaceae | 13 | |
| Avocado | Persea americana | Lauraceae | 15 | |
| Banana | Musa (genus) | Musaceae | 3 | |
| Barley | Hordeum vulgare | Poaceae | 4 | 1 |
| Bean | Phaseolus vulgaris | Fabaceae | 4 | 1 |
| Beet (Beta vulgaris) | Beta vulgaris | Chenopodiaceae | 4 | 2 |
| Bermuda grass | Cynodon dactylon | Poaceae | 14 | |
| Blackberry | Rubus (genus) | Rosaceae | 1 | |
| Boysenberry | Rubus ursinus | Rosaceae | 18 | |
| Broadbean | Vicia faba | Fabaceae | 4 | 1 |
| Cacao | Theobroma cacao | Sterculiaceae | 3 | |
| Carrot | Daucus carota | Apiaceae | 14 | |
| Cassava | Manihot esculenta | Euphorbiaceae | 3 | |
| Castor bean | Ricinus communis | Euphorbiaceae | 3 | |
| Celery | Apium graveolens | Apiaceae | 4 | |
| Chickpea | Cicer arietinum | Fabaceae | 3 | 1 |
| Citrus | Citrus (genus) | Rutaceae | 11 | |
| Clover, alsike | Trifolium hybridum | Fabaceae | 1 | |
| Clover, berseem | Trifolium alexandrinum | Fabaceae | 4 | |
| Clover, ladino | Trifolium repens | Fabaceae | 11 | |
| Clover, red | Trifolium pratense | Fabaceae | 11 | |
| Clover, strawberry | Trifolium fragiferum | Fabaceae | 1 | |
| Coffee | Coffea arabica | Rubiaceae | 3 | |
| Cole crops (Brassica oleracea) | Brassica oleracea | Brassicaceae | 15 | 3 |
| Corn | Zea mays | Poaceae | 14 | 2 |
| Cotton | Gossypium hirsutum | Malvaceae | 14 | |
| Cowpea | Vigna unguiculata | Fabaceae | 1 | 1 |
| Cucumber | Cucumis sativus | Cucurbitaceae | 10 | 1 |
| Date palm | Phoenix dactylifera | Arecaceae | 4 | |
| Eggplant | Solanum melongena | Solanaceae | 15 | |
| Fescue, tall | Festuca arundinacea | Poaceae | 1 | |
| Flax | Linum usitatissimum | Linaceae | 4 | |
| Foxtail, meadow | Alopecurus pratensis | Poaceae | 1 | |
| Garlic | Allium sativum | Liliaceae | 3 | |
| Grape | Vitis (genus) | Vitaceae | 4 | 1 |
| Grapefruit | Citrus ×paradisi | Rutaceae | 1 | |
| Groundnut | Arachis hypogaea | Fabaceae | 4 | |
| Harding grass | Phalaris aquatica | Poaceae | 1 | |
| Hops | Humulus lupulus | Cannabaceae | 3 | |
| Kiwifruit | Actinidia chinensis | Actinidiaceae | 3 | |
| Lentil | Lens culinaris | Fabaceae | 3 | |
| Lovegrass | Eragrostis (genus) | Poaceae | 1 | |
| Melon | Cucumis melo | Cucurbitaceae | 4 | 1 |
| Mint | Mentha (genus) | Lamiaceae | 4 | |
| Oat | Avena sativa | Poaceae | 3 | |
| Olive | Olea europaea | Oleaceae | 12 | |
| Onion | Allium cepa | Liliaceae | 4 | 2 |
| Orange | Citrus ×sinensis | Rutaceae | 1 | |
| Orchard grass | Dactylis glomerata | Poaceae | 1 | |
| Parsnip | Pastinaca sativa | Apiaceae | 13 | |
| Pea | Pisum sativum | Fabaceae | 13 | 1 |
| Peach | Prunus persica | Rosaceae | 17 | |
| Pepper | Capsicum annuum | Solanaceae | 21 | |
| Pineapple | Ananas comosus | Bromeliaceae | 3 | |
| Pistachio | Pistacia vera | Anacardiaceae | 3 | |
| Plum, prune | Prunus domestica | Rosaceae | 17 | |
| Potato | Solanum tuberosum | Solanaceae | 14 | |
| Pumpkin, winter squash | Cucurbita maxima | Cucurbitaceae | 3 | |
| Radish | Raphanus sativus | Brassicaceae | 4 | |
| Rapeseed, canola | Brassica napus | Brassicaceae | 3 | |
| Rice | Oryza sativa | Poaceae | 4 | |
| Rubber tree | Hevea brasiliensis | Euphorbiaceae | 3 | |
| Ryegrass, perennial | Lolium perenne | Poaceae | 4 | |
| Safflower | Carthamus tinctorius | Asteraceae | 3 | |
| Sesame | Sesamum indicum | Pedaliaceae | 3 | |
| Sesbania | Sesbania exaltata | Fabaceae | 1 | |
| Sisal | Agave sisalana | Agavaceae | 3 | |
| Sorghum | Sorghum bicolor | Poaceae | 4 | 1 |
| Soybean | Glycine max | Fabaceae | 14 | |
| Sphaerophysa | Sphaerophysa salsula | Fabaceae | 1 | |
| Spinach | Spinacia oleracea | Chenopodiaceae | 5 | |
| Squash (Cucurbita pepo) | Cucurbita pepo | Cucurbitaceae | 5 | 1 |
| Sugarcane | Saccharum officinarum | Poaceae | 4 | |
| Sunflower | Helianthus annuus | Asteraceae | 13 | |
| Sweet potato | Ipomoea batatas | Convolvulaceae | 4 | |
| Tea | Camellia sinensis | Theaceae | 3 | |
| Trefoil, big | Lotus uliginosus | Fabaceae | 1 | |
| Trefoil, narrowleaf birdsfoot | Lotus corniculatus | Fabaceae | 1 | |
| Turnip | Brassica rapa | Brassicaceae | 15 | |
| Vetch, common | Vicia angustifolia | Fabaceae | 1 | |
| Walnut | Juglans regia | Juglandaceae | 20 | |
| Watermelon | Citrullus lanatus | Cucurbitaceae | 4 | |
| Wheat | Triticum aestivum | Poaceae | 14 | 1 |
| Wheat, durum | Triticum turgidum | Poaceae | 1 | |
| Wheatgrass, fairway crested | Agropyron cristatum | Poaceae | 11 | |
| Wheatgrass, standard crested | Agropyron fragile | Poaceae | 1 | |
| Wheatgrass, tall | Thinopyrum ponticum | Poaceae | 1 | |
| Wildrye, beardless | Leymus triticoides | Poaceae | 1 | |
