Articles | Volume 10, issue 1
https://doi.org/10.5194/soil-10-33-2024
https://doi.org/10.5194/soil-10-33-2024
Original research article
 | 
15 Jan 2024
Original research article |  | 15 Jan 2024

Combining lime and organic amendments based on titratable alkalinity for efficient amelioration of acidic soils

Birhanu Iticha, Luke M. Mosley, and Petra Marschner

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Cited articles

Adeleke, R., Nwangburuka, C., and Oboirien, B.: Origins, roles and fate of organic acids in soils: A review, S. Afr. J. Bot., 108, 393–406, https://doi.org/10.1016/j.sajb.2016.09.002, 2017. 
Aitken, R. L. and Moody, P. W.: The effect of valence and ionic-strength on the measurement of pH buffer capacity, Soil Res., 32, 975–984, https://doi.org/10.1071/SR9940975, 1994. 
Anderson, G. C., Pathan, S., Easton, J., Hall, D. J., and Sharma, R.: Short-and long-term effects of lime and gypsum applications on acid soils in a water-limited environment: 2. soil chemical properties, Agronomy, 10, 1987, https://doi.org/10.3390/agronomy10121987, 2020. 
Barouchas, P. E., Moustakas, N., and Liopa-Tsakalidi, A.: A rapid procedure to calculate lime requirements based on single titration with base, Arch. Agron. Soil Sci., 59, 317–325, https://doi.org/10.1080/03650340.2011.621421, 2013. 
Barrow, N. and Cox, V.: A quick and simple method for determining the titration curve and estimating the lime requirement of soil, Soil Res., 28, 685–694, https://doi.org/10.1071/SR9900685, 1990. 
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Short summary
Little effort has been made to develop methods to calculate the application rates of lime combined with organic amendments (OAs) needed to neutralise soil acidity and achieve the desired pH for plant growth. The previous approach of estimating appropriate lime and OA combinations based on field trials is time-consuming and costly. Hence, we developed and successfully validated a new method to calculate the amount of lime or OAs in combined applications required to ameliorate acidity.