Fig. 4
From: Liming promotes the leaching of carbon and nitrogen in a double-cropped rice system

Effects of liming on the leaching losses of NO3−-N in the double-cropped rice field with acidic red soil. Error bars represent the standard deviation of the mean (n = 3). SD, MT, PI, HD, and GF indicate seedling, mid-tillering, panicle initiation, heading, and grain filling stages, respectively. Significant treatment effects in the rice growth stage are showed by * (0.01 < p ≤ 0.05).