What Is Conservation Tillage

A two-minute silent educational picture film with Chinese and English captions. Real photographs are credited on screen; AI reconstructions are marked and are not microscopy or measurement evidence. Gentle digital camera movement does not represent recorded machine or biological motion. Field settings require local adaptation. Photographs come from different fields and dates, not a controlled comparison. Some images are reused across this series. Companion article: CA-001.

Scene 1: USDA NRCS | https://www.nrcs.usda.gov/conservation-basics/soil/soil-health/soil-health-on-cropland | U.S. federal agency photograph; retain USDA NRCS credit; no endorsement
Scene 2: USDA NRCS / Brandon O’Connor | https://www.nrcs.usda.gov/state-offices/indiana/soil-health-indiana | U.S. federal agency photograph; retain USDA NRCS credit; no endorsement
Scene 3: GAKI · 既有AI教学重建 / AI reconstruction | {'name': 'Post-harvest maize residue on dark soil.png', 'library_file_id': 'libfile_e4d1e5ff4374819191a25b8db1d6a8ef', 'file_id': 'file_00000000895c81fdb2d24ab5df0585da', 'created_at': '2026-09-25T02:39:54.005121Z', 'kind': 'Previously generated AI teaching reconstruction'} | Previously generated AI teaching reconstruction
Scene 4: GAKI · 既有AI教学重建 / AI reconstruction | {'name': 'Soybeans emerging through maize residue.png', 'library_file_id': 'libfile_ce38e4cc82908191a1c0f54be2bd6bf9', 'file_id': 'file_00000000e01481fd8fac5eb6f5b2ab98', 'created_at': '2026-09-25T02:40:01.491442Z', 'kind': 'Previously generated AI teaching reconstruction'} | Previously generated AI teaching reconstruction
Scene 5: GAKI · 既有AI教学重建 / AI reconstruction | {'name': 'Moist Soil Aggregates in Close Focus.png', 'library_file_id': 'libfile_35edc58c2ccc8191bb402674a55ba32e', 'file_id': 'file_00000000c88c81fd968b5ca697b1f5d1', 'created_at': '2026-09-25T02:39:54.630936Z', 'kind': 'Previously generated AI teaching reconstruction'} | Previously generated AI teaching reconstruction
Scene 6: GAKI · 既有AI教学重建 / AI reconstruction | {'name': 'Crop root and fungal hyphae in soil.png', 'library_file_id': 'libfile_5eaf62a419ac81918218ab3a349e8796', 'file_id': 'file_000000005b3081fd9c15853794928f1d', 'created_at': '2026-09-25T02:39:58.405831Z', 'kind': 'Previously generated AI teaching reconstruction'} | Previously generated AI teaching reconstruction
Scene 7: USDA NRCS / Brandon O’Connor | https://www.nrcs.usda.gov/state-offices/indiana/soil-health-indiana | U.S. federal agency photograph; retain USDA NRCS credit; no endorsement
Scene 8: GAKI · 既有AI教学重建 / AI reconstruction | {'name': 'Agronomists in a young maize field.png', 'library_file_id': 'libfile_b149e0b5efec8191bfaa0a85594a6cf5', 'file_id': 'file_00000000594081fd81cff3da9618238f', 'created_at': '2026-09-25T02:40:03.311875Z', 'kind': 'Previously generated AI teaching reconstruction'} | Previously generated AI teaching reconstruction