An insight to rhizosphere bacterial community composition and structure of consecutive winter-initiated sugarcane ratoon crop in Southern China

Table 2 Effect of consecutive ratooning sugarcane on root morphology and soil nutrients

Genotypes	Roots (no)	TRL (m)	Depth (m)	SOC (g/kg)	AN (mg/kg)	AK (mg/kg)	AP (mg/kg)
2019
ZZ-13	66.6 ± 15.1a	144 ± 28.5a	0.20 ± 0.03b	21.5 ± 1.6b	59.1 ± 2.8c	209.2 ± 3.5b	31.1 ± 2.5b
ZZ-1	52.4 ± 9.29a	142 ± 49.1a	0.26 ± 0.08a	34.2 ± 1.4a	101.2 ± 3.9a	193.4 ± 4.2bc	42.6 ± 3.21a
2020
ZZ-13	38.5 ± 8.2b	65.3 ± 18.25b	0.13 ± 0.03c	24.96 ± 1.5b	75.3 ± 2.5b	235.1 ± 3.5a	45.2 ± 4.5a
ZZ-1	28.8 ± 7.8b	75.14 ± 16.4b	0.12 ± 0.02c	33.9 ± 1.4a	113.4 ± 2.19a	211.3 ± 4.2b	49.5 ± 6.6a
SOV
Genotypes	1.5 ns	0.03 ns	4.54 ns	2260.2 **	1702.7 **	7007.1*	216.6 *
Year	29.5 *	21.1*	21.74 *	34.7 *	2.57 ns	2.38 ns	93.5 *
Genotype×Year	1.18 ns	0.08 ns	0.80 ns	76.95 *	457.4 *	928.4 ns	63.93 *

Each value is the mean of three replicates with standard error
TRL Total root length, SOC Soil organic matter, AN Total nitrogen, AK Available potassium, AP available phosphorous
^*P < 0.01
^**P < 0.001

ISSN: 1471-2229