Effects of soil potassium levels on dry matter and nutrient accumulation and distribution in cotton

Table 3 Seed cotton production efficiency of N, P and K in cotton plants in 2020 and 2021

Treatment	Seed cotton production efficiency of N/(g·g⁻¹)		Seed cotton production efficiency of P/(g·g⁻¹)		Seed cotton production efficiency of K/(g·g⁻¹)
Treatment	2020	2021	2020	2021	2020	2021
K1	18.08 c	15.49 c	90.50 c	78.77 c	30.23 a	27.94 a
K2	21.35 bc	17.2 bc	121.19 bc	84.69 bc	33.00 a	25.38 ab
K3	24.20 ab	20.97a	136.3 ab	98.35 ab	34.08 a	24.03 ab
K4	23.98 ab	19.47 ab	142.51 ab	104.44 a	30.70 a	24.32 ab
K5	25.05 ab	19.42 ab	163.57 a	102.28 a	31.78 a	22.84 b
K6	27.02 a	19.18 ab	161.18 a	100.31 a	33.73 a	20.83 b
Year	**		**		**
Treatment	**		**		ns
Year × Treatment	ns		ns		*

Values followed by different letters within the same column are significantly different at the 0.05 probability level
^*and ** means the significant differences at 0.05 and 0.01 probability levels, respectively. ns means no significant difference

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