Fig. 4
From: Effects of soil potassium levels on dry matter and nutrient accumulation and distribution in cotton
Single-plant seed cotton yield from the boll opening stage under different soil K levels in 2020 and 2021. Different lowercase letters in the same year indicate significant differences at the 0.05 probability level. * and ** indicate significant differences at the 0.05 and 0.01 probability levels, respectively. ns indicates no significant difference