Empirical data on farm level food loss is often difficult to come by. This article looks at how capturing that data in New England (US) has led to strategies for loss reduction. It culminates in a research paper, Salvageable Food Losses from Vermont Farms, by the Journal of Agriculture, Food Systems and Community Management. Compensations for donating food to food banks are essential for farmers. More often than not tax incentives do not match the cost in price for farmers. There are ways around this, but strategies depend upon data. This is a quick read, explaining why, even in perfect growing conditions, food losses can be high.
This resource presents evidence or data but has not been peer reviewed