Abstract
Land-leveling to improve water management in lowland rice (Oryza sativa L.) production is becoming common in many countries. This technique exposes subsoil by removal and deposition of surface soil from high- to low-lying areas. The potential effect of land-leveling on soil fertility was studied in samples from an alluvial soil at depths of 0- to 5-, 5- to 15-, and 15- to 25-cm. Levels of soil cation exchange capacity; dilute acid-fluoride extractable P; DTPA extractable Cu, Mn, and Zn; exchangeable K; hot-water soluble B; and organic matter decreased with soil depth; whereas, soil pH increased with depth. Relatively low amounts of dilute acid-fluoride extractable P, exchangeable K, and DTPA extractable Zn occurred in the 15- to 25-cm layer of the soil. These data indicate the high likelihood that K, P, and Zn deficiencies would occur in rice grown on the subsoil that was exposed by land-leveling.
This is a preview of subscription content, log in via an institution to check access.
References
Chang S C 1976 In The Fertility of Paddy Soils and Fertilizer Applications for Rice. pp 93–116. Food and Fertilizer Technology Center for the Asian and Pacific Region, Taipei, Taiwan.
De Datta S K 1981 Principles and Practices of Rice Production. John Wiley and Sons, New York, USA.
Kemmler G 1981 In Proceedings of Symposium on Paddy Soil. Ed. Institute of Soil Science, Academia Sinica. pp 603–627. Springer-Verlag, New York, USA.
Lindsay W L and Norvell W A 1978 Soil Sci. Soc. Am. J. 42. 421–428.
Olsen S R and Sommers L E 1982 In Methods of Soil Analysis. Ed. A L Page. pp403–430. Part 2, Agronomy 9.
Parker D R and Gardner E H 1981 Commun. Soil Sci. Plant Anal. 12, 1311–1322.
Ponnamperuma F N 1972 Adv. Agron. 24, 29–96.
Randhawa N S et al. 1978 In Soils and Rice. Ed. International Rice Research Institute. pp 581–503. IRRI, Los Baños, Philippines.
Thomas G W and Peaslee D E 1973 In Soil Testing and Plant Analysis. Ed. L M Walsh and J D Beaton. pp 115–132. Soil Sci. Soc. Am., Inc., Madison, WI, USA.
Tiller K G 1981 In Proceedings of Symposium on Paddy Soil. Ed. Institute of Soil Science, Academia Sinica. pp 273–289. Springer-Verlag, New York, USA.
Walkley A and Black I A 1934 Soil Sci. 37, 29–38.
Author information
Authors and Affiliations
Rights and permissions
About this article
Cite this article
Preve, R.E., Martens, D.C. Potential effect of land-leveling on soil fertility in a Brazilian rice soil. Plant Soil 121, 148–150 (1990). https://doi.org/10.1007/BF00013108
Received:
Issue Date:
DOI: https://doi.org/10.1007/BF00013108