Effect of iron oxide on nitrification in two agricultural soils with
different pH

Huang, Xueru; Zhu-Barker, Xia; Horwath, William R.; Faeflen, Sarwee J.; Luo, Hongyan; Xin, Xiaoping; Jiang, Xianjun

doi:10.5194/bg-13-5609-2016

Articles | Volume 13, issue 19

https://doi.org/10.5194/bg-13-5609-2016

© Author(s) 2016. This work is distributed under
the Creative Commons Attribution 3.0 License.

https://doi.org/10.5194/bg-13-5609-2016

© Author(s) 2016. This work is distributed under
the Creative Commons Attribution 3.0 License.

Articles | Volume 13, issue 19

Research article

|

07 Oct 2016

Research article |

| 07 Oct 2016

Effect of iron oxide on nitrification in two agricultural soils with different pH

Xueru Huang, Xia Zhu-Barker, William R. Horwath, Sarwee J. Faeflen, Hongyan Luo, Xiaoping Xin, and Xianjun Jiang

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Month	HTML	PDF	XML	Total
Jun 2016	61	19	0	80
Jul 2016	14	10	0	24
Aug 2016	16	2	0	18
Sep 2016	1	2	0	3
Oct 2016	86	26	5	117
Nov 2016	10	6	0	16
Dec 2016	14	16	0	30
Jan 2017	15	10	2	27
Feb 2017	23	9	0	32
Mar 2017	18	13	0	31
Apr 2017	21	14	0	35
May 2017	24	12	1	37
Jun 2017	18	14	0	32
Jul 2017	23	20	1	44
Aug 2017	4	15	2	21
Sep 2017	12	14	0	26
Oct 2017	4	15	0	19
Nov 2017	12	10	1	23
Dec 2017	4	4	0	8
Jan 2018	8	12	0	20
Feb 2018	7	9	0	16
Mar 2018	11	10	0	21
Apr 2018	5	7	0	12
May 2018	8	15	0	23
Jun 2018	7	7	0	14
Jul 2018	12	15	0	27
Aug 2018	11	11	0	22
Sep 2018	9	12	0	21
Oct 2018	8	10	1	19
Nov 2018	8	12	1	21
Dec 2018	4	11	0	15
Jan 2019	8	8	1	17
Feb 2019	4	5	0	9
Mar 2019	8	11	1	20
Apr 2019	9	10	0	19
May 2019	5	5	0	10
Jun 2019	10	11	0	21
Jul 2019	5	8	0	13
Aug 2019	6	12	0	18
Sep 2019	4	6	0	10
Oct 2019	13	20	5	38
Nov 2019	12	6	0	18
Dec 2019	7	14	1	22
Jan 2020	9	13	1	23
Feb 2020	3	7	0	10
Mar 2020	3	7	0	10
Apr 2020	6	6	1	13
May 2020	5	5	0	10
Jun 2020	10	11	1	22
Jul 2020	14	12	3	29
Aug 2020	10	11	3	24
Sep 2020	12	6	1	19
Oct 2020	12	14	1	27
Nov 2020	11	13	2	26
Dec 2020	18	8	1	27
Jan 2021	22	11	1	34
Feb 2021	20	11	2	33
Mar 2021	16	8	2	26
Apr 2021	14	8	4	26
May 2021	12	10	0	22
Jun 2021	15	5	0	20
Jul 2021	15	9	1	25
Aug 2021	14	12	0	26
Sep 2021	23	10	0	33
Oct 2021	18	46	1	65
Nov 2021	20	25	0	45
Dec 2021	13	6	0	19
Jan 2022	10	10	0	20
Feb 2022	14	7	2	23
Mar 2022	13	12	0	25
Apr 2022	20	6	1	27
May 2022	22	7	2	31
Jun 2022	31	7	2	40
Jul 2022	14	4	1	19
Aug 2022	38	8	1	47
Sep 2022	25	13	3	41
Oct 2022	30	13	4	47
Nov 2022	39	12	2	53
Dec 2022	26	7	1	34
Jan 2023	18	10	1	29
Feb 2023	36	12	2	50
Mar 2023	44	16	12	72
Apr 2023	20	17	0	37
May 2023	32	13	0	45
Jun 2023	41	8	2	51
Jul 2023	28	9	2	39
Aug 2023	23	14	4	41
Sep 2023	16	5	0	21
Oct 2023	23	7	1	31
Nov 2023	13	6	1	20
Dec 2023	23	7	1	31
Jan 2024	15	7	2	24
Feb 2024	15	10	1	26
Mar 2024	37	19	1	57
Apr 2024	41	9	6	56
May 2024	36	12	3	51
Jun 2024	40	10	7	57
Jul 2024	21	12	5	38
Aug 2024	25	3	2	30
Sep 2024	25	7	1	33
Oct 2024	21	11	1	33
Nov 2024	17	7	2	26
Dec 2024	26	7	1	34
Jan 2025	25	8	4	37
Feb 2025	38	19	3	60
Mar 2025	45	18	2	65
Apr 2025	18	15	1	34
May 2025	16	10	1	27
Jun 2025	41	15	0	56
Jul 2025	30	19	1	50
Aug 2025	36	17	3	56
Sep 2025	39	19	2	60
Oct 2025	39	38	2	79
Nov 2025	204	7	1	212

Cumulative views and downloads (calculated since 17 Jun 2016)

Month	HTML	PDF	XML	Total
Jun 2016	61	19	0	80
Jul 2016	14	10	0	24
Aug 2016	16	2	0	18
Sep 2016	1	2	0	3
Oct 2016	86	26	5	117
Nov 2016	10	6	0	16
Dec 2016	14	16	0	30
Jan 2017	15	10	2	27
Feb 2017	23	9	0	32
Mar 2017	18	13	0	31
Apr 2017	21	14	0	35
May 2017	24	12	1	37
Jun 2017	18	14	0	32
Jul 2017	23	20	1	44
Aug 2017	4	15	2	21
Sep 2017	12	14	0	26
Oct 2017	4	15	0	19
Nov 2017	12	10	1	23
Dec 2017	4	4	0	8
Jan 2018	8	12	0	20
Feb 2018	7	9	0	16
Mar 2018	11	10	0	21
Apr 2018	5	7	0	12
May 2018	8	15	0	23
Jun 2018	7	7	0	14
Jul 2018	12	15	0	27
Aug 2018	11	11	0	22
Sep 2018	9	12	0	21
Oct 2018	8	10	1	19
Nov 2018	8	12	1	21
Dec 2018	4	11	0	15
Jan 2019	8	8	1	17
Feb 2019	4	5	0	9
Mar 2019	8	11	1	20
Apr 2019	9	10	0	19
May 2019	5	5	0	10
Jun 2019	10	11	0	21
Jul 2019	5	8	0	13
Aug 2019	6	12	0	18
Sep 2019	4	6	0	10
Oct 2019	13	20	5	38
Nov 2019	12	6	0	18
Dec 2019	7	14	1	22
Jan 2020	9	13	1	23
Feb 2020	3	7	0	10
Mar 2020	3	7	0	10
Apr 2020	6	6	1	13
May 2020	5	5	0	10
Jun 2020	10	11	1	22
Jul 2020	14	12	3	29
Aug 2020	10	11	3	24
Sep 2020	12	6	1	19
Oct 2020	12	14	1	27
Nov 2020	11	13	2	26
Dec 2020	18	8	1	27
Jan 2021	22	11	1	34
Feb 2021	20	11	2	33
Mar 2021	16	8	2	26
Apr 2021	14	8	4	26
May 2021	12	10	0	22
Jun 2021	15	5	0	20
Jul 2021	15	9	1	25
Aug 2021	14	12	0	26
Sep 2021	23	10	0	33
Oct 2021	18	46	1	65
Nov 2021	20	25	0	45
Dec 2021	13	6	0	19
Jan 2022	10	10	0	20
Feb 2022	14	7	2	23
Mar 2022	13	12	0	25
Apr 2022	20	6	1	27
May 2022	22	7	2	31
Jun 2022	31	7	2	40
Jul 2022	14	4	1	19
Aug 2022	38	8	1	47
Sep 2022	25	13	3	41
Oct 2022	30	13	4	47
Nov 2022	39	12	2	53
Dec 2022	26	7	1	34
Jan 2023	18	10	1	29
Feb 2023	36	12	2	50
Mar 2023	44	16	12	72
Apr 2023	20	17	0	37
May 2023	32	13	0	45
Jun 2023	41	8	2	51
Jul 2023	28	9	2	39
Aug 2023	23	14	4	41
Sep 2023	16	5	0	21
Oct 2023	23	7	1	31
Nov 2023	13	6	1	20
Dec 2023	23	7	1	31
Jan 2024	15	7	2	24
Feb 2024	15	10	1	26
Mar 2024	37	19	1	57
Apr 2024	41	9	6	56
May 2024	36	12	3	51
Jun 2024	40	10	7	57
Jul 2024	21	12	5	38
Aug 2024	25	3	2	30
Sep 2024	25	7	1	33
Oct 2024	21	11	1	33
Nov 2024	17	7	2	26
Dec 2024	26	7	1	34
Jan 2025	25	8	4	37
Feb 2025	38	19	3	60
Mar 2025	45	18	2	65
Apr 2025	18	15	1	34
May 2025	16	10	1	27
Jun 2025	41	15	0	56
Jul 2025	30	19	1	50
Aug 2025	36	17	3	56
Sep 2025	39	19	2	60
Oct 2025	39	38	2	79
Nov 2025	204	7	1	212

Latest update: 15 Nov 2025

Short summary

The effect of Fe oxide on N transformation processes were different in soils as a function of pH. ¹⁵N-labelled ammonium and nitrate were used separately to determine N transformation rates combined with Fe oxide (ferrihydrite) addition. Iron oxide addition stimulated net nitrification in the low-pH soil (pH 5.1), while the opposite occurred in the high-pH soil (pH 7.8). Fe oxide increased NH3-N availability by stimulating N mineralization and inhibiting N immobilization at low pH.