EFFECT OF ORGANIC AND MINERAL FERTILIZATION AND LIMING ON THE ACCUMULATION OF IRON BY IRRIGATED RICE PLANTS
Abstract
The objective of this work was to determine the effects of cow manure, rice straw, fertilizers and lime additions on iron uptake by irrigated rice. Samples were collected from two soil horizons (A and Cg) in a low humic grey soil of São João River Valley, Casemiro de Abreu, RJ, Brazil, and mixed with cow manure, rice straw, NPK, or lime in various combinations. Rice seeds of BR IRGA 409 cultivar were sowed in pots and rice was cultivated in a greenhouse of the Depto. de Solos, UFRRJ. The results show that addition of NPK and/or lime, with or without organic manure reduced iron concentration in the aerial parts of the rice planta grown in horizon Cg, while organic manure alone caused an increase in iron concentration.
Downloads
The authors declare that the work has not been previously published, nor sent simultaneously for publication in another journal and that they agree with the submission, content and transfer of the publication rights of the article in question to the scientific journal Pesquisa Agropecuária Gaúcha - PAG. The authors assume full responsibility for the originality of the article, and may incur on them any charges arising from claims by third parties in relation to the authorship of the article. The full reproduction of the journal's articles in other free-to-use electronic media is permitted under the Creative Commons Attribution-NonCommercial-ShareAlike 4.0 International license.
