Journal
CIENCIA RURAL
Volume 41, Issue 1, Pages 77-84Publisher
UNIV FEDERAL SANTA MARIA
DOI: 10.1590/S0103-84782011000100013
Keywords
mineral nutrition; soybean; herbicide
Categories
Ask authors/readers for more resources
After development of glyphosate-resistant (CR) soybean, there is a considerable raise in the use of this herbicide, with three to four applications during the culture cycle. Thus, these applications may be influencing the mineral nutrition of the crop. So, the aim of this research was evaluate the glyphosate influence on uptake, translocation and use efficiency of N, Mn, Cu, Zn and Fe by (GR) soybean 'P98R31' cultivar. The experiment was conducted in the greenhouse at ESALQ/USP, Piracicaba, State of Sao Paulo, Brazil, in 2009. The experimental unit was formed by 11kg vase(-1) of soil (Rhodic Paleudult) with two plants in each vase. The treatments have been arranged in a factorial pathway 5X5, with five levels of the factor Mn (0, 20, 40, 60 and 80mg dm(-3)) and five of glyphosate drifts (0; 0,648; 1,296; 1,944 e 2,592kg ca. ha(-1)) and the Mn was supplied by the manganese sulfate (MnSO4 center dot H2O). The experimental design was randomized blocks, with four repetitions. There was no influence on response from plants concerning the levels of Mn used into the experiment. The application of glyphosate interfered on mineral nutrition of soybean and the total contents of N, Mn, Cu, Zn and Fe. The use of glyphosate has caused reduction of the nodules number and reduced the output of dry mass.
Authors
I am an author on this paper
Click your name to claim this paper and add it to your profile.
Reviews
Recommended
No Data Available