It depends on which listed profession the job fits. Agriculturist, Animal Scientist and Soil Scientist each state a baccalaureate; Scientific Technician or Technologist has a different, supporting-role rule. The diploma is measured against the rule for the specific profession claimed.
Let the profession's rule, not the résumé, decide
Hypothetical example: an East Hants crop-scouting supervisor holds a two-year agricultural technology diploma and fifteen seasons of field experience. If the U.S. offer is written as an agronomist position, the Agriculturist listing requires a baccalaureate, and experience does not substitute for it. If the same person will genuinely work in direct support of a professional agronomist, applying theoretical knowledge to practical problems, the Scientific Technician or Technologist listing may describe the job more honestly and its rule may be met. The useful step is to ask the employer to describe the reporting line and the actual tasks, then read the two listings side by side. What usually goes wrong is choosing the title that sounds senior and discovering at the border that the credential does not match it. A position described accurately under the right listing is stronger than an inflated one under the wrong listing.
Hypothetical example: an East Hants mineral-processing technologist is offered a U.S. materials-testing role under a scientist's title. A first review makes a two-column comparison between each actual task and the selected listing's rule. Her transcript, course descriptions, and the proposed supervising professional's letter settle whether the role is truly support work requiring theoretical knowledge. If the employer cannot identify that professional or the problem-solving duties, it should revise the job description before filing rather than call her an agronomist or engineer by convenience.