The effects of straw-returning and inorganic K fertilizer on the carbon–nitrogen balance and reproductive growth of cotton

Table 1 Reproductive organ biomass accumulation and ratio of reproductive organ biomass to total biomass (RRT) in 2012 and 2013

Treatment	2012		2013
Treatment	Reproductive organ biomass/(kg·ha⁻¹)	RRT/%	Reproductive organ biomass/(kg·ha⁻¹)	RRT/%
CK	1 959.4 b	43.4 c	2 181.7 b	46.4 c
K150	3 679.4 a	45.2 b	4 403.4 a	50.0 b
W9000	3 691.6 a	47.2 a	4 480.0 a	52.7 a

CK, no crop straw and K fertilizer were applied as the blank control treatment; K150, 150 kg·ha⁻¹ K₂O was applied before transplanting the cotton seedlings; and W9000, 9000 kg·ha⁻¹ wheat straw was crushed and incorporated in 0∼10 cm soil before transplanting. Values followed by different letters within the same column are significantly different at P = 0.05. Each value represents the mean of three replications

ISSN: 2523-3254