Extended Data Fig. 3: Geographical distribution of paired on-farm trials under high- and low-quality soils.
From: Soil quality both increases crop production and improves resilience to climate change
Symbols of blue dot and red triangle indicate on-farm trials conducted in high- and low-quality soils in major cropping systems in China, respectively. Paired on-farm trials were conducted in high-(N = 1665) and low - (N = 1676) quality soils. W-NCP, winter wheat in North China Plain; W-YZB, winter wheat in Yangtze River Basin; W-NWC, winter wheat in Northwest China; M-NEC, rainfed maize in Northeast China; M-NCP, maize in North China Plain; M-SWC, rainfed maize in Southwest China; SR-YZB, single rice in Yangtze River Basin; ER-SC, early rice in South China; LR-SC, late rice in South China.
