Start with high-confidence agronomy books, then narrow by subgenre or adjacent topics.
Plowman's Folly
Edward H. Faulkner
The Market Gardener
Jean-Martin Fortier
The Organic Farmer's Business Handbook
Richard Wiswall
Two Percent Solutions for the Planet
Courtney White
Dirt to Soil
Gabe Brown
No-till Intensive Vegetable Culture
Bryan O'Hara
The Living Soil Handbook
Jesse Frost
The Organic Seed Grower
John Navazio