Samples for sale
Soil samples & plant samples
Reference materials remaining after NAPT program distribution are available for purchase. Pricing is below. Enrollment in the NAPT Program is not required to order samples. NAPT Primary Contacts must be logged in to receive the discount. Samples can take up to 10 days to ship from the lab.
Please double check that your request is listed in the inventory below, as the online system will allow you to pay for samples that are not available, which will delay your order. You may place your order online, or you send in the PDF order form by email. Please contact us at [email protected] if you have questions about placing an order or if you wish to pay by check or wire transfer.
NAPT Participant Pricing
0.60-kg Soil: $95
1.0-kg Soil: $155
20-kg Soil: $575
25-g Plant: $55 (bulk orders of 100 g or greater @ 30% off)
Non-NAPT Participant Pricing
0.60-kg Soil: $145
1.0-kg Soil: $230
20-kg Soil: $865
25-g Plant: $85 (bulk orders of 100 g or greater @ 30% off)
| Soil Name | Year | Number | 0.6-kg* | Buckets** | pH, sp | EC, sp | P, Olsen | P, M-3 | NO3-N | County/State | Texture | Notes |
| Lutz | 2017 | 104 | 4/0 | 7.19 | 0.63 | 128.0 | 243.0 | 2.5 | Gallatin MT | L | ||
| Wikoff | 2017 | 107 | 3/0 | 6.78 | 0.62 | 12.8 | 24.1 | 25.7 | Grand Forks ND | LS | 2017 Multi-quarter | |
| Lee | 2017 | 114 | 3/0 | 6.77 | 0.70 | 12.9 | 23.5 | 25.4 | Grand Forks ND | LS | 2017 Multi-quarter | |
| Greenbush | 2018 | 101 | 0/1 | 5.81 | 0.87 | 12.9 | 21.6 | 41.8 | Knox IL | SIL | 2018 Multi-quarter | |
| Fruitland | 2018 | 105 | 7/0 | 7.21 | 4.28 | 23.4 | 46.4 | 91.3 | San Juan NM | SL | ||
| Valle | 2018 | 106 | 4/4 | 6.93 | 1.30 | 9.3 | 30.3 | 26.6 | Fresno CA | LS | Same as 2014-107 | |
| Hickory | 2018 | 108 | 2/0 | 5.46 | 0.80 | 16.6 | 19.0 | 53.3 | Henry IL | SIL | ||
| Muleshoe | 2018 | 110 | 4/0 | 6.84 | 4.46 | 152.0 | 423.0 | 155.0 | Bailey TX | LS | ||
| Taunton | 2018 | 111 | 1/1 | 7.43 | 1.35 | 29.0 | 64.5 | 43.0 | Morrow OR | LS/SL | ||
| Armijo | 2018 | 116 | 3/2 | 7.71 | 4.46 | 10.7 | 49.2 | 69.0 | Dona Ana NM | C | ||
| Rodgers | 2018 | 117 | 4/2 | 5.80 | 0.98 | 46.0 | 141.0 | 53.9 | Penobscot ME | SL | Same as 2017-103 | |
| Whatzup | 2018 | 119 | 9/3 | 6.40 | 1.00 | 39.5 | 127.0 | 43.2 | NAPT Blend | SIL | ||
| Gosney | 2018 | 120 | 0/2 | 5.97 | 3.40 | 72.0 | 136.0 | 197.0 | Deschutes OR | SL | ||
| Horneck | 2019 | 102 | 2/0 | 5.43 | 0.78 | 55.5 | 124.0 | 15.2 | Benton WA | L | ||
| Harter | 2019 | 105 | 3/0 | 6.33 | 0.40 | 18.4 | 37.6 | 2.5 | Riley KS | SIL | Same as 2014-109 | |
| Bearden | 2019 | 118 | 0/1 | 6.06 | .28 | 24.4 | 46.6 | 10.4 | Grand Forks ND | SL | ||
| Hancock | 2019 | 119 | 2/2 | 6.68 | 0.84 | 22.6 | 91.5 | 20.4 | Waushara WI | LS | ||
| Sherman | 2020 | 102 | 3/0 | 5.84 | 0.35 | 48.0 | 118.0 | 16.3 | Carroll NH | SIL | ||
| Bedington | 2020 | 106 | 7/3 | 6.94 | 2.26 | 142.0 | 542.0 | 110.0 | Lancaster PA | SIL | ||
| Whittle | 2020 | 108 | 9/0 | 7.33 | 0.99 | 30.1 | 69.5 | 39.3 | Barton MO | SIL | Same as 2015-104 | |
| Royal | 2020 | 111 | 5/4 | 7.08 | 0.93 | 62.0 | 108.0 | 20.3 | Morrow OR | L | Same as 2021-118 | |
| Rozetta | 2020 | 113 | 12/1 | 5.89 | 1.06 | 25.0 | 37.0 | 47.7 | Knox IL | SIL | ||
| Amsterdam | 2020 | 115 | 8/0 | 7.58 | 0.55 | 7.2 | 16.6 | 3.1 | Gallatian MT | SIL | ||
| Orio | 2020 | 120 | 3/1 | 6.63 | 0.86 | 31.4 | 92.0 | 20.8 | Lee IL | SL | ||
| Chester | 2021 | 102 | 0/2 | 7.04 | 1.52 | 51.9 | 153.0 | 38.9 | Lancaster PA | SIL | ||
| Embden | 2021 | 103 | 4/0 | 6.10 | 0.87 | 24.2 | 42.3 | 48.7 | Grand Forks ND | SL | 2021 Multi-quarter | |
| Blake | 2021 | 104 | 7/1 | 6.00 | 1.52 | 20.0 | 32.3 | 68.1 | Marion OR | SIL | Same as 2016-114 | |
| Wynoose | 2021 | 105 | 6/0 | 6.40 | 0.46 | 12.7 | 20.8 | 7.4 | Cumberland IL | SIL | Same as 2017-115 | |
| Bears Den | 2021 | 106 | 4/0 | 6.11 | 0.82 | 24.0 | 39.8 | 48.0 | Grand Forks ND | SL | ||
| Princess | 2021 | 107 | 15/1 | 6.29 | 1.07 | 99.7 | 600.0 | 42.0 | Sommerset MD | SIL | ||
| Bakey | 2021 | 112 | 0/2 | 6.10 | 0.840 | 24.2 | 40.6 | 47.0 | Grand Forks ND | |||
| Zander | 2021 | 113 | 6/0 | 4.70 | 0.55 | 44.3 | 80.5 | 25.0 | Henry TN | SIL | ||
| Nephi | 2021 | 114 | 1/0 | 7.77 | 0.87 | 15.8 | 70.6 | 25.8 | Juab UT | CL | ||
| Flamen | 2021 | 115 | 9/1 | 7.24 | 1.48 | 47.0 | 80.5 | 17.2 | Tulare CA | L | ||
| Fonnesbeck | 2021 | 118 | 16/0 | 7.10 | 0.96 | 57.8 | 105.0 | 19.4 | Morrow OR | L/CL | Same as 2020-111 | |
| Mysteke | 2021 | 119 | 6/1 | 7.52 | 1.26 | 16.6 | 52.3 | 15.4 | NAPT Blend | SL | ||
| Watermelon | 2021 | 120 | 6/4 | 7.03 | 1.37 | 14.2 | 64.0 | 32.5 | Sussex DE | LS/SL | Same as 2019-106 | |
| Mask | 2022 | 103 | 8/0 | 6.60 | 0.85 | 304.0 | 95.5 | 20.6 | Lee IL | SL | ||
| Spry | 2022 | 104 | 2/0 | 7.60 | 2.66 | 123.0 | 221.0 | 123.0 | Garfield UT | L | ||
| Hayter | 2022 | 106 | 8/4 | 6.52 | 0.27 | 28.8 | 122.0 | 3.5 | Montgomery VA | SL | ||
| Bob | 2022 | 110 | 8/5 | 7.36 | 2.62 | 37.4 | 67.7 | 160.0 | Union OR | L | ||
| Leonard | 2022 | 111 | 12/2 | 6.88 | 0.74 | 27.0 | 53.6 | 12.0 | Boone MO | SIL | ||
| Wellsboro | 2022 | 115 | 8/0 | 6.86 | 1.29 | 24.0 | 41.0 | 34.9 | McKean PA | L | ||
| Kokomo | 2022 | 116 | 2/3 | 6.10 | 0.30 | 34.1 | 94.8 | 10.5 | Montgomery VA | SIL | ||
| Monticello | 2022 | 118 | 0/3 | 6.60 | 0.42 | 27.0 | 62.7 | 5.7 | San Juan UT | L | ||
| Maumee | 2022 | 119 | 1/0 | 7.61 | 0.59 | 54.3 | 142.0 | 5.3 | Puluska IN | LS | ||
| Island | 2022 | 120 | 2/3 | 7.00 | 1.43 | 52.8 | 94.4 | 58.4 | Union OR | L | ||
| Arbuckle | 2023 | 101 | 3/0 | 7.38 | 4.43 | 29.6 | 66.1 | 17.9 | Fresno CA | SCL | ||
| Whatzittuya | 2023 | 103 | 11/1 | 6.78 | 1.11 | 36.9 | 96.8 | 27.2 | NAPT Blend | SIL | ||
| Edwards | 2023 | 104 | 5/0 | 5.27 | 0.40 | 31.2 | 68.4 | 11.3 | Wheatley TN | SIL | ||
| Lake Loramie | 2023 | 106 | 7/5 | 7.63 | 0.58 | 24.7 | 20.0 | 20.9 | Shelby OH | C | Same as 2024-115 | |
| Willamette | 2023 | 107 | 0/4 | 5.91 | 0.39 | 61.3 | 109.0 | 5.8 | Various OR | L/CL | ||
| Border | 2023 | 109 | 12/6 | 6.83 | 0.67 | 12.7 | 27.0 | 25.5 | Grand Forks ND | LS | ||
| Garrett | 2023 | 113 | 9/1 | 7.79 | 1.63 | 21.1 | 90.8 | 16.2 | Larimer CO | SCL | ||
| Irrigon | 2023 | 114 | 12/2 | 7.41 | 1.54 | 64.7 | 92.9 | 55.0 | Morrow OR | L | ||
| Jovine | 2023 | 115 | 11/3 | 7.54 | 1.34 | 81.2 | 155.0 | 27.0 | Power ID | SIL | ||
| Bluford | 2023 | 116 | 2/3 | 7.12 | 1.04 | 30.7 | 50.6 | 45.5 | Cumberland IL | SIL | ||
| Rottin | 2023 | 120 | 1/0 | 6.20 | 1.16 | 31.7 | 92.0 | 20.6 | NAPT Blend | SL | ||
| Rexburg | 2024 | 101 | 1/3 | 6.83 | 0.84 | 37.4 | 88.9 | 23.9 | Power ID | SIL | 2024 Multi-quarter | |
| Mexico | 2024 | 102 | 2/2 | 6.92 | 0.85 | 23.4 | 31.4 | 31.3 | Boone MO | SIL | ||
| Bean | 2024 | 103 | 2/0 | 6.28 | 1.02 | 25.5 | 37.7 | 32.0 | Menard IL | SIL | Same as 2021-108 | |
| Purdy | 2024 | 104 | 0/1 | 6.48 | 0.31 | 27.6 | 116.0 | 3.5 | Montgomery VA | SL | Same as 2022-106 | |
| Bristol | 2024 | 106 | 4/1 | 7.79 | 0.84 | 15.4 | 65.4 | 25.5 | Juab UT | CL | ||
| Palouse | 2024 | 108 | 4/0 | 5.00 | 2.04 | 56.8 | 104.0 | 113.0 | Whitney WA | SIL | ||
| Arbon | 2024 | 109 | 6/3 | 6.8 | 0.82 | 37.6 | 86.0 | 23.8 | Power ID | SIL | ||
| Atlas | 2024 | 110 | 7/3 | 6.87 | 1.31 | 48.0 | 59.0 | 62.1 | Henry IL | SICL | ||
| Panguitch | 2024 | 111 | 2/5 | 7.10 | 1.81 | 69.0 | 133.2 | 90.1 | Garfield UT | SL | ||
| Cranney | 2024 | 112 | 0/2 | 6.87 | 0.87 | 37.9 | 89.0 | 23.8 | Power ID | SIL | ||
| Dun | 2024 | 113 | 2/2 | 6.58 | 1.77 | 18.8 | 32.3 | 83.5 | Grand Forks ND | SL | ||
| Sloan | 2024 | 115 | 0/3 | 7.62 | 0.63 | 25.2 | 22.6 | 18.6 | Shelby OH | SIC | Same as 2023-106 | |
| Quincy | 2024 | 116 | 3/0 | 7.56 | 1.05 | 9.00 | 20.0 | 23.3 | Grant WA | L | ||
| Lily | 2024 | 117 | 5/4 | 6.03 | 1.09 | 24.0 | 30.0 | 37.3 | Menard IL | SIL | ||
| Hoerner | 2024 | 119 | 5/4 | 6.89 | 1.67 | 51.0 | 147.0 | 37.5 | Lancaster PA | SIL | ||
| Trevor | 2024 | 120 | 5/3 | 6.82 | 0.86 | 38.2 | 88.4 | 23.8 | Power ID | SIL | ||
| Nunn | 2025 | 101 | 0/1 | 7.76 | 0.92 | 32.0 | 115.0 | 31.5 | Larimer, CO | CL | ||
| Seely | 2025 | 102 | 1/0 | 7.38 | 1.56 | 65.0 | 103.0 | 54.9 | Morrow, OR | L | ||
| Breezy | 2025 | 104 | 1/3 | 6.84 | 0.83 | 39.0 | 100.0 | 24.2 | Power, ID | SIL | ||
| Kerr | 2025 | 106 | 0/1 | 7.40 | 1.29 | 79.6 | 177.0 | 25.0 | Power ID | SIL | ||
| SeeYaLater | 2025 | 107 | 3/2 | 6.80 | 1.16 | 52.0 | 132.0 | 31.6 | NAPT Blend | L | ||
| Poldark | 2025 | 109 | 2/0 | 6.06 | 0.36 | 32.9 | 122.0 | 9.15 | Montgomery VA | SIL | ||
| Claude | 2025 | 111 | 5/0 | 5.9 | .47 | 23 | 52 | 40.1 | Grand Forks ND | SL | ||
| Kennard | 2025 | 112 | 5/0 | 6.62 | .38 | 23.2 | 37.3 | 31 | Boone MO | SIL | ||
| Alamo | 2025 | 113 | 0/0 | 86 | 4.96 | .43 | 9.68 | 20.3 | 54.7 | Abington TX | LS | |
| Faith | 2025 | 114 | 5/2 | 7.6 | .59 | 31.7 | 113 | 31.4 | Larimer CO | CL | ||
| Eagle | 2025 | 115 | 8/3 | 6.43 | .67 | 18.7 | 37.4 | 83.6 | Grand Forks ND | SL | ||
| Lawley | 2025 | 116 | 17/4 | 20 | 6.8 | 1.01 | 43 | 108 | 16.4 | Fresno, CA | Sl | |
| Sannar | 2025 | 117 | 18/3 | 7.8 | 0.93 | 31.2 | 101 | 31.5 | Larimer, CO | CL | ||
| Woffy | 2025 | 118 | 16/3 | 98 | 7.4 | 2.12 | 37 | 73.5 | 92.1 | Oneida, ID | SIL | |
| Wilberg | 2025 | 119 | 18/3 | 75 | 6.81 | 3.93 | 32.9 | 60.5 | 59.7 | Salem, NJ | CL | |
| Transylvania | 2025 | 120 | 11/0 | 9 | 5.94 | 0.85 | 21.2 | 38.6 | 44.7 | Transylvania Co., NC | SICL |
- * If a second value is present, 1.0-kg samples are also available (e.g., "8/3" indicates 8 samples of 0.6-kg size and 3 samples of 1.0-kg size).
- ** Buckets of soil are sold in 20 kg increments until there is less than 20kg. The remaining amount will be sold as one bucket. Prices of buckets weighing less than 20 kg will be prorated on a per-kilogram basis.
- Note: In addition to this inventory, five small containers of each soil have been set aside for research.
| NAPT # | Material | 25-g samples | Bulk (g) | NO3-N | P | Notes | |
| 2017-201 | Almond Leaf | 5.5 | 359 | 663 | 2017 Multi-quarter | ||
| 2017-202 | Spinach | 4.5 | 2150 | 4730 | |||
| 2017-204 | Cherry Leaf | 3 | 20.2 | 553 | |||
| 2017-205 | Orchard Grass | 3 | 150 | 1250 | 1310 | ||
| 2017-206 | Almond Leaf | 3 | 326 | 571 | 2017 Multi-quarter | ||
| 2017-207 | Alfalfa | 5.5 | 314 | 1300 | |||
| 2017-208 | Almond Leaf | 2.5 | 331 | 685 | 2017 Multi-quarter | ||
| 2017-209 | Peach Leaf | 5.5 | 20 | 1440 | |||
| 2017-210 | Citrus | 2 | 35 | 553 | |||
| 2017-211 | Barley | 0 | 85 | 16 | 1150 | ||
| 2017-212 | Almond Leaf | 6.5 | 341 | 548 | 2017 Multi-quarter | ||
| 2018-204 | Short Meadow Brome | 3.5 | 290 | 371 | 1940 | ||
| 2018-207 | Wild Rye | 4 | 260 | 90.7 | 305 | ||
| 2018-208 | Grape Petiole | 1 | 173 | 3030 | 2018 Multi-quarter | ||
| 2018-209 | Cherry Leaf | 5.5 | 20 | 700 | |||
| 2019-201 | Peach Leaf | 2 | 20 | 1370 | |||
| 2019-203 | Red Clover | 3 | 36 | 1360 | 2019 Multi-quarter | ||
| 2019-205 | Red Clover | 4 | 36 | 1400 | 2019 Multi-quarter | ||
| 2019-208 | Red Clover | 3 | 35 | 1430 | 2019 Multi-quarter | ||
| 2019-209 | Tomato Petiole | 0 | 688 | 2480 | 1540 | ||
| 2019-211 | Almond Leaf | 2 | 243 | 602 | |||
| 2019-212 | Grape Leaf | 0 | 815 | 20 | 1030 | ||
| 2020-204 | Wild Rye | 3.5 | 1200 | 84 | 312 | ||
| 2020-209 | Grass | 2.5 | 160 | 207 | 1020 | ||
| 2020-212 | Almond Leaf | 3.5 | 238 | 530 | |||
| 2021-202 | Basil | 0 | 1283 | 2460 | 2290 | ||
| 2021-203 | Sweet Cherry Leaf | 3 | 1168 | 26.1 | 906 | ||
| 2021-204 | Peas | 0 | 375 | 536 | 1960 | ||
| 2021-206 | Cranberry | 4.5 | 15.8 | 600 | |||
| 2021-207 | Lettuce | 1 | 720 | 1960 | 3260 | ||
| 2022-201 | Tomato Vine | 3 | 880 | 556 | 987 | ||
| 2022-202 | Tart Cherry Leaf | 4.5 | 190 | 27.1 | 1770 | 2022 Multi-quarter | |
| 2022-203 | Short Meadow Brome | 2.5 | 885 | 201 | 1840 | ||
| 2022-205 | Tart Cherry Leaf | 4.5 | 26.2 | 1690 | 2022 Multi-quarter | ||
| 2022-206 | Almond Leaf | 4 | 344 | 755 | |||
| 2022-207 | Olive Leaf | 5.5 | 683 | ||||
| 2022-209 | Tart Cherry Leaf | 5.5 | 24.6 | 1690 | 2022 Multi-quarter | ||
| 2022-210 | Tart Chery Leaf | 2 | 25.6 | 1600 | 2022 Multi-quarter | ||
| 2022-212 | Tomato Leaf | 0.5 | 2250 | 1920 | |||
| 2023-203 | Grass | 4.5 | 561 | 27.5 | 1150 | ||
| 2023-204 | Douglas Fir Needles | 4.5 | 15.4 | 1110 | |||
| 2023-206 | Walnut Leaf | 3.5 | 396 | 75 | 902 | ||
| 2023-208 | Corn Silage | 2.5 | 109 | 60.2 | 1530 | ||
| 2023-209 | Fescue | 6 | 50.7 | 1190 | |||
| 2023-210 | Almond Leaf | 3.5 | 238 | 527 | |||
| 2023-211 | Alfalfa | 2.5 | 230 | 640 | |||
| 2024-201 | Peach Leaf | 2 | 34.8 | 818 | |||
| 2024-203 | Potato Petiole | 5 | 19500 | 1440 | 2024 Multi-quarter | ||
| 2024-204 | Citrus | 5 | 463 | 44.6 | 540 | ||
| 2024-205 | Potato Petiole | 4 | 873 | 18400 | 1270 | 2024 Multi-quarter | |
| 2024-206 | Tart Cherry | 5 | 66 | 36.8 | 656 | ||
| 2024-207 | Spinach | 2.5 | 2690 | 4840 | |||
| 2024-208 | Potato Petiole | 6.5 | 18300 | 1480 | 2024 Multi-quarter | ||
| 2024-209 | Sugar Beet Blades | 7.5 | 300 | 884 | 1880 | ||
| 2024-210 | Potato Petiole | 3.5 | 1191 | 2024 Multi-quarter | |||
| 2024-211 | Douglas Fir Needles | 3.5 | 400 | ||||
| 2024-212 | Almond Leaf | 2.5 | 1450 | ||||
| 2025-201 | Tomato Leaf | 1 | |||||
| 2025-202 | Grass | 1 | |||||
| 2025-204 | Wheat (grain) | 5 | 830 | ||||
| 2025-205 | Corn | 6 | |||||
| 2025-206 | Tomato Leaf | 7 | |||||
| 2025-207 | Potato Petiole | 5 | 250 | ||||
| 2025-208 | Tomato Leaf | 4 | |||||
| 2025-209 | Pistachio Leaf | 4 | 675 | ||||
| 2025-210 | Alfalfa | 8.5 | 230 | ||||
| 2025-211 | Corn (grain) | 8.5 | 90 | ||||
| 2025-212 | Tomato Leaf | 8.5 | 50 |