Prediction of soil available phosphorus based on soil organic carbon
Article
Article Title | Prediction of soil available phosphorus based on soil organic carbon |
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Article Category | Article |
Authors | Seilsepour, Mohsen (Author), Rashidi, Majid (Author) and Khabbaz, Borzoo Ghareei (Author) |
Journal Title | American-Eurasian Journal of Agricultural and Environmental Sciences |
Journal Citation | 4 (2), pp. 189-193 |
Number of Pages | 5 |
Year | 2008 |
Place of Publication | Montreal, Canada |
Web Address (URL) | http://www.idosi.org/aejaes/jaes4(2)/9.pdf |
Abstract | There are many cases in which it is desirable to determine relationships among some soil physical and chemical properties. In soil studies, soil available phosphorous (AP) are often determined using laboratory tests, but it may be more suitable and economical to develop a pedotransfer function which uses some easily available soil properties. In this study, a pedotransfer function for predicting soil AP from soil organic carbon(OC) was suggested and soil AP was estimated as a function of soil OC. The soil AP predicted from the soil AP pedotransfer function was compared to the soil AP determined by laboratory test using the paired samples test and the Bland-Altman approach. The soil AP predicted by the soil AP pedotransfer function was not significantly different from the soil AP determined by laboratory test (P>0.05). The mean difference between the soil AP pedotransfer function and laboratory test was 1.57 ppm (95% confidence interval: -2.88 and 6.03 ppm; P = 0.453). The standard deviation of the soil AP differences was 7.01 ppm. The statistical results of the study indicated that the soil AP pedotransfer function provides an easy, economic and brief methodology to estimate soil AP and in order to predict soil AP based on soil OC the pedotransfer function AP = 0.7927 e 4.9922 OC with R2 = 0.92 can be recommended. |
Keywords | available phosphorous; organic carbon; pedotransfer function; prediction; modeling; soil |
ANZSRC Field of Research 2020 | 410604. Soil chemistry and soil carbon sequestration (excl. carbon sequestration science) |
410605. Soil physics | |
409901. Agricultural engineering | |
Public Notes | File reproduced in accordance with the copyright policy of the publisher/author. |
Byline Affiliations | Soil and Water Research Institute, Iran |
Islamic Azad University, Iran | |
National Centre for Engineering in Agriculture |
https://research.usq.edu.au/item/9yzq7/prediction-of-soil-available-phosphorus-based-on-soil-organic-carbon
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