Scholarly record
SOIL PROPERTIES OF PELLIC VERTISOLS UNDER CONVENTIONAL AND ORGANIC FARMING FROM SOUTHERN BULGARIA
Abstract
The paper deals with statistical analyses of data on soil properties of Pellic Vertisols selected from the eastern as well western part of the Upper Thracian Lowland, in Southern Bulgaria. Based on the survey in 2019, 2020 and 2021 at conventional and organic farming the data was processed using the statistical package Statgraphics (Anova). Soil textural class was the same a light to heavy clay and the total porosity was low. Natural variability of soils was due to imposed local separateness of organic farming from conventional. None of the studied soil parameters have statistically significant difference by the depth of sampling. Mean pH(H2O) value varied per year of survey, which could be due to a different factors. Available forms of nutrients N, P and K have varied with statistically significant difference per year of survey also. Generally the mean pH(H2O) values were higher at conventional farming nearby Chirpan town. Positive trend was increasing of pH(H2O) in organic farming. The humus content was not affected by the farming system. Negative trend was decreasing of humus content over the years. The mean values on available phosphorus P2O5 and potassium K2O were higher at conventional farming; the available forms of mineral nitrogen were commensurate. The statistical processing of data showed that there was no statistically significant difference of main soil parameters in Pellic Vertisols under conventional and organic farming nearby Karnobat town.
Publication Impact Profile
- Captures
- Mendeley - Readers: 2
Publication details
References14
Badgley C., Moghtader J., Quintero E., Zakem E., Chappell M.J., Aviles-Vazquez K., Samulon A., Perfecto I., Organic agriculture and the global food supply, Renewable Agriculture and Food Systems, vol. 22/issue 2, pp 86-108, 2007. DOI: 10.1017/s1742170507001640
Boincean B., Dent D., Farming the Black Earth, Springer Nature, Switzerland AG, pp 226, 2019. DOI: 10.1007/978-3-030-22533-9
Filcheva E., Tsadilas C., Influence of Cliniptilolite and compost on soil properties, Communications in Soil Science and Plant Analysis, USA, vol. 33/issue 3-4, pp 595- 607, 2002. DOI: 10.1081/css-120002766
Holland J.M., The environmental consequences of adopting conservation tillage in Europe: reviewing the evidence, Agriculture, Ecosystems & Environment, ELSEVIER, vol. 103, pp 1-25, 2004. DOI: 10.1016/j.agee.2003.12.018
IUSS WORKING GROUP, World Reference Base for Soil Resources, International soil classification system for naming soils and creating legends for soil maps, update 2015, World Soil Resources Reports 106, FAO, Rome, Italy, pp 192, 2015.
Jones D.L., Cross P., Withers P.J.A., DeLuca T.H., Robinson D.A., Quilliam R.S., Harris I.M., Chadwick D.R., Edwards-Jones G., Nutrient stripping: the global disparity between food security and soil nutrient stocks, Journal of Applied Ecology, British Ecological Society, vol. 50/issue 4, pp 851-862, 2013. DOI: 10.1111/1365-2664.12089
Kachinsky N.A., Mechanical and micro-aggregate composition of soil, Methods for its study, Publ. house of Science Academy of USSS, Moscow, Russia, pp 192, 1958.
Lal R., Soil carbon sequestration impacts on global climate change and food security, Science, USA, vol. 304/issue 5677, pp 1623-1627, 2004. DOI: 10.1126/science.1097396
Montgomery D.R., Soil erosion and agricultural sustainability, Proceedings of the National Academy of Sciences of the USA, vol. 104/issue 33, pp 13268-13272, 2004. DOI: 10.1073/pnas.0611508104
Montgomery Douglas C. Design and Analysis of Experiments, Tenth edition, Arizona State University, John Wiley & Sons, Inc., pp 724, 2013.
Robertson G.P., Swinton S.M., Reconciling agricultural productivity and environmental integrity: a grand challenge for agriculture, Frontiers in Ecology and the Environment, Ecological Society of America, vol. 3/issue 1, pp 38-46, 2005. DOI: 10.1890/1540-9295(2005)003[0038:rapaei]2.0.co;2
Seufert V., Ramankutty N., Foley J.A., Comparing the yields of organic and conventional agriculture, Nature, England, vol. 485, pp 229-232, 2012. DOI: 10.1038/nature11069
Soil Survey Staff, Soil Survey Laboratory Information Manual, Soil Survey Investigations Report No. 45, Version 2.0. R. Burt (ed.), USDA, Natural Resources Conservation Service, USA, pp 506, 2011.
Swaminathan M.S., An evergreen revolution, Crop Sciences, Crop Science Society of America, vol. 46/issue 5,pp 2293, 2006. DOI: 10.2135/cropsci2006.9999
View or Download full articleAccess options
SWS access login
Login as SWS Scientific CommitteeLogin as SWS Scientific PartnerLogin as SWS AuthorAuthors and approved SWS contributors will read and export their own linked papers after identity matching by SWS profile, email and SGEM GlobalID.
For librarian assistance: [email protected]
Purchase Instant Access
- Article can be downloaded after successful payment.
- Article may be used according to SWS library access terms.
- Article cannot be redistributed.