| ลำดับที่ | LC |
คำอธิบาย |
| 21 |
|
Organic farming. Organiculture |
| 22 |
|
Special classes of lands and reclamation methods Including woodlands, burning of lands, deserts, saline environments, moors |
| 23 |
|
Soil conservation and protection |
| 24 |
|
Fertilizers and improvement of the soil |
| 25 |
|
Farm machinery and farm engineering |
| 26 |
|
Agricultural structures. Farm buildings |
| 27 |
|
Conservation of natural resources Including land conservation |
| 28 |
|
Plant culture |
| 29 |
|
Economic botany |
| 30 |
|
Methods for special areas Including cold regions, dry farming, tropical agriculture |
| 31 |
|
Irrigation farming |
| 32 |
|
Seeds. Seed technology |
| 33 |
|
Nurseries. Nursery industry |
| 34 |
|
Propagation Including breeding, selection, grafting, air layering |
| 35 |
|
Training and pruning |
| 36 |
|
Artificial light gardening |
| 37 |
|
Hydroponics. Soilless agriculture |
| 38 |
|
Forcing |
| 39 |
|
Growth regulators |
| 40 |
|
Harvesting, curing, storage |
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