Cotton N rate could be reduced further under the planting model of late sowing and high-density in the Yangtze River valley

Table 2 Cotton yield and its components for different N rate in 2015 and 2016

Treatments	Bolls no. / (m^− 2)	Boll weight / g	Lint percentage / %	Yield /(kg·hm^− 2)
Treatments	Bolls no. / (m^− 2)	Boll weight / g	Lint percentage / %	Seed cotton yield	Lint cotton yield
2015
N120	67.6b	3.43a	46.1a	2 319.0c	1 066.7c
N150	74.8ab	3.29a	47.2a	2 457.5b	1 155.0b
N180	77.1ab	3.78a	47.0a	2 912.4a	1 368.8a
N210	86.2a	3.37a	47.1a	2 900.7a	1 363.3a
N240	86.2a	3.43a	47.2a	2 956.1a	1 389.4a
2016
N120	61.2b	3.91a	40.3a	2 390.9c	962.9c
N150	72.6ab	3.94a	39.1a	2 859.6ab	1 117.7b
N180	78.4a	4.01a	40.1a	3 142.4a	1 260.1a
N210	70.5ab	4.04a	38.9a	2 849.5b	1 109.7b
N240	58.5b	3.81a	41.3a	2 226.9c	920.4c

Means in the same column and the same year followed by different letters are significantly different (P < 0.05) according to LSD test at 0.05 probability level by SPSS 21.0

ISSN: 2523-3254