Super high-yielding rice (SHYR) (>15 t ha(-1)) plays a crucial role in global food production and security. We hypothesized that the external environment of different ecological regions could improve biomass accumulation in different periods and thus increase the rice yield. Two SHYR varieties, i.e., Xiangliangyou900 (XLY900) and Yliangyou900 (YLY900), were cultivated in the YONGSHENG and LONGHUI ecoregions, China. The results indicated that the average yield of the two SHYRs in the LONGHUI ecological region was 15.27-15.45 t ha(-1) and 18.81-20.10 t ha(-1) in YONGSHENG. The high grain yield i...
