Diagnosis and recommendation integrated system dris of soybean seed oil content Report as inadecuate




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Pedro Alexandre Varella Escosteguy ; Diego Berres ; Silas Zanella ;Revista Brasileira de Ciência do Solo 2012, 36 6

Author: Alfredo Castamann

Source: http://www.redalyc.org/


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Revista Brasileira de Ciência do Solo ISSN: 0100-0683 revista@sbcs.org.br Sociedade Brasileira de Ciência do Solo Brasil Castamann, Alfredo; Varella Escosteguy, Pedro Alexandre; Berres, Diego; Zanella, Silas DIAGNOSIS AND RECOMMENDATION INTEGRATED SYSTEM (DRIS) OF SOYBEAN SEED OIL CONTENT Revista Brasileira de Ciência do Solo, vol.
36, núm.
6, 2012, pp.
1820-1827 Sociedade Brasileira de Ciência do Solo Viçosa, Brasil Available in: http:--www.redalyc.org-articulo.oa?id=180225136024 How to cite Complete issue More information about this article Journals homepage in redalyc.org Scientific Information System Network of Scientific Journals from Latin America, the Caribbean, Spain and Portugal Non-profit academic project, developed under the open access initiative 1820 Alfredo Castamann et al. Nota DIAGNOSIS AND RECOMMENDATION INTEGRATED SYSTEM (DRIS) OF SOYBEAN SEED OIL CONTENT(1) Alfredo Castamann(2), Pedro Alexandre Varella Escosteguy(3), Diego Berres(4) & Silas Zanella(4) SUMMARY The Diagnosis and Recommendation Integrated System (DRIS) can improve interpretations of leaf analysis to determine the nutrient status.
Diagnoses by this method require DRIS norms, which are however not known for oil content of soybean seeds.
The aims of this study were to establish and test the DRIS method for oil content of soybean seed (maturity group II cultivars).
Soybean leaves (207 samples) in the full flowering stage were analyzed for macro and micro-nutrients, and the DRIS was applied to assess the relationship between nutrient ratios and the seed oil content.
Samples from experimental and farm field sites of the southernmost Brazilian state Rio Grande do Sul (28° - 29° southern latitude; 52° 53° western longitude) were assessed in two growing seasons (2007-2008 and 2008- 2009).
The DRIS norms related to seed oil content differed between the studied years.
A unique DRIS norm was established for seed oil content higher than 18.68 % based on data of the 2007-2008 ...





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