It's not about prioritizing one gets the best results from an evenly learning of the sciences.
No, that would only be true if all sciences had equal value. At low BPA levels, Food sci is pretty good and should have almost even weight. At high BPA levels, you should allocate a very small portion to Food sci. You start reaping greater benefit from Housing than Alchemy the higher your draft is. Channeling/Crime is a question of how much you focus on those areas. If you don't focus, you should put less. It's not worthwhile boosting 1 tpa with heavy Crime science.

For specific allocation on a high draft 2k acre human sage A/t, something like this off the top of my head (assuming 500 BPA)
Alchemy 90
Tools 110
Housing 150
Food 30
Military 40
Crime 50
Channeling 30