Impact of No-Tillage and Conventional Tillage Systems on Soil Microbial Communities

Table 1

Selected chemical and physical properties of soils from no-till (NT) and conventional-till (CT) treatments*.

Tillage treatment	Depth (cm)	Organic C (%)	Total N(%)	C/N ratio	Bulk density (Mg m^−3)	Soil pH (1 : 2 CaCl2)	Soil moisture content
NT	0–5	1.94a	0.13a	14.9a	1.52b	6.1a	0.25a
NT	5–15	0.84b	0.07b	11.7b	1.65a	5.9a	0.18b
CT	0–5	0.92b	0.08b	11.0b	1.53b	6.1a	0.15c
CT	5–15	0.76b	0.07b	10.9b	1.66a	6.2a	0.12d

*Means (𝑛=4) followed by the same letter in a column are not significantly different (Tukey, 𝑃≤0.05).