Impact of Organic and Conventional Systems of Coffee Farming on Soil Properties and Culturable Microbial Diversity

Table 2

Organic and conventional method of coffee farming on selected soil biological properties.

	Soil respiration		Urease		DHA		FDA
Management systems	(CO2 mg/50 g)		(µg NH4-N/g^−1 h^−1)		(µg TPF g^−1 24 h^−1)		(fluorescein µg/g^−1)
	0–15	15–30	0–15	15–30	0–15	15–30	0–15	15–30
Organic	29.3	18.5	36.8	27.8	12.3	9.2	46.0	32.0
Conventional	24.8	16.9	49.3	37.8	10.3	7.8	34.3	22.1
SEm	2.2	0.8	6.2	5.0	1.0	0.7	5.9	5.0
CD (0.05)	4.41	NS	4.47	3.42	NS	NS	5.54	2.63
CD (0.01)	NS	NS	7.01	5.37	NS	NS	8.69	4.13

All the values are mean of 5 replications.
SEm: standard error of mean; CD: critical difference; NS: nonsignificant.
DHA: dehydrogenase activity; FDA: fluorescein diacetate activity.
Superscript letters indicate statistical significance following Tukey multiple comparison tests.