Soil and water conservation practice effects on soil physicochemical properties and crop yield in Ethiopia: review and synthesis

Jiru, Endale Bekele; Wegari, Habtamu Temesgen

doi:10.1186/s13717-022-00364-2

Ecological Processes

Table 4 SWC practices effects on the mean value of soil chemical properties in the study area

From: Soil and water conservation practice effects on soil physicochemical properties and crop yield in Ethiopia: review and synthesis

Parameters	Treated	Untreated	Change	Change %	P-value	Author(s)
Physical
pH	6.02 (23)	5.79 (23)	0.22	3.84	0.01*	Wolka et al. (2011), Amdemariam et al. (2011), Hailu et al. (2012), Hailu (2017), Hishe et al. (2017), Tanto and Laekemariam (2019), Belayneh et al. (2019), Degu et al. (2019), Guadie et al. (2020), Mohammed et al. (2020), Tadesse et al. (2016), Demelash and Stahr (2010), Dagnachew et al. (2020), Bezabih et al. (2016), Husen et al. (2017), Terefe et al. (2020); Mesfin et al. (2018), Amare et al. (2013), Asnake and Elias (2019), Alemayehu et al. (2020), Adimassu et al. (2012)
TN (%)	0.45 (31)	0.4 (31)	0.054	13.35	0.00**
Ava.P (ppm)	10.62 (31)	8.65 (31)	1.97	22.78	0.087
SOM (%)	4.4 (35)	3.75 (35)	0.65	17.34	0.00**
SOC (%)	2.17 (35)	1.79 (35)	0.39	21.67	0.00**
Biological
pH	5.79 (3)	5.37 (3)	0.42	7.82	0.09	Hailu et al. (2020), Sinore et al. (2018)
TN (%)	0.21 (4)	0.18 (4)	0.03	18.75	0.18	Hailu et al. (2020), Sinore et al. (2018, Gesesse et al. (2013)
Ava. P (Ppm)	11.39 (4)	7.49 (4)	3.91	52.20	0.22
SOM (%)	3.73 (4)	2.46 (4)	1.27	51.76	0.08	Hailu et al. (2020), Sinore et al. (2018), Gesesse et al. (2013)
SOC (%)	2.16 (4)	1.42 (4)	0.74	51.76	0.08
Integrated
pH	6.33 (5)	5.97 (5)	0.36	6.06	0.04*	Tanto and Laekemariam (2019), Tadesse et al. (2016), Demelash and Stahr (2010), Yakob et al. (2015)
TN (%)	0.22 (6)	0.20 (6)	0.08	6.75	0.01*	Amdemariam et al. (2011), Tadesse et al. (2016), Demelash and Stahr (2010), Yakob et al. (2015)
Ava. P (Ppm)	15.29 (5)	8.23 (5)	7.06	85.83	0.08	Tanto and Laekemariam (2019), Tadesse et al. (2016), Demelash and Stahr (2010), Yakob et al. (2015)
SOM (%)	3.42 (8)	1.88 (8)	1.54	82.12	0.01*	Amdemariam et al. (2011), Tanto and Laekemariam (2019), Tadesse et al. (2016), Demelash and Stahr (2010), Yakob et al. (2015)
SOC (%)	1.98 (8)	1.09 (8)	0.90	82.35	0.01*

**, *Indicate the statistical significance at 1% and 5%, respectively

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