Protist communities are more sensitive to nitrogen fertilization than other microorganisms in diverse agricultural soils

Table 2 The effects of soil type, season, and fertilization treatment on the changes of alpha diversity of bacterial, fungal, and protist communities based on linear mixed model (LMM)

Alpha diversity		Fertilization	Soil type	Season	Fertilization × soil type	Fertilization × season	Soil type × season	Fertilization × soil type × season
Bacterial community	F	4.473	98.300	2.188	0.757	0.327	0.242	0.754
Bacterial community	P	0.065	< 0.001	0.150	0.561	0.724	0.787	0.563
Fungal community	F	7.056	117.140	0.0305	0.565	0.367	1.220	2.942
Fungal community	P	0.027	< 0.001	0.862	0.690	0.696	0.309	0.037
Protist community	F	13.163	10.253	142.357	1.536	0.218	5.969	1.475
Protist community	P	0.006	< 0.001	< 0.001	0.217	0.805	0.007	0.235

With the plot position serial number (i _ j, where i and j are the row and column number of the plot, respectively) in the field as a random effect

ISSN: 2049-2618