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Sugarcane root length density and distribution from root intersection counting on a trench-profile Scientia Agricola
Azevedo,Mateus Carvalho Basilio de; Chopart,Jean Louis; Medina,Cristiane de Conti.
Root length density (RLD) is a critical feature in determining crops potential to uptake water and nutrients, but it is difficult to be measured. No standard method is currently available for assessing RLD in the soil. In this study, an in situ method used for other crops for studying root length density and distribution was tested for sugarcane (Saccharum spp.). This method involved root intersection counting (RIC) on a Rhodic Eutrudox profile using grids with 0.05 x 0.05 m and modeling RLD from RIC. The results were compared to a conventional soil core-sampled method (COR) (volume 0.00043 m³). At four dates of the cropping season in three tillage treatments (plowing soil, minimum tillage and direct planting), with eight soil depths divided in 0.1 m soil...
Tipo: Info:eu-repo/semantics/article Palavras-chave: Brasil; Root mapping; Root study methods; Trench-profile method.
Ano: 2011 URL: http://www.scielo.br/scielo.php?script=sci_arttext&pid=S0103-90162011000100014
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