Extended Data Fig. 3: Trends in yields and planting dates for treatment and control fields during the pre-treatment period (2000–2009), shown separately for corn and soybean.
From: The mixed effects of recent cover crop adoption on US cropland productivity
Panels a and b show yield (a) and planting date (b) trends for corn; panels c and d show yield (c) and planting date (d) trends for soybean.
