Sorghum seeds were planted in 20 dm3 plastic pots filled with a 3 cm layer of gravel at the bottom, and 15 kg of soil collected from the 0-20 cm layer of a sandy loam textured soil classified by the Embrapa as
latosolic Dystrophic Yellow Argissolo, which presented the following characteristics: electrical conductivity of 0.23 dS [m.sup.-1], pH of 5.7; 0.7 [cmol.sub.c] [dm.sup.-3] of Mg; 1.0 cmolc [dm.sup.-3] of Ca; 1.6 [cmol.sub.c] [dm.sup.-3] of H + Al, 0.33 [cmol.sub.c] [dm.sup.-3] of K, 0.07 [cmol.sub.c] [dm.sup.-3] of Na, 84.7% of sand, 13.5% of silt, and 1.8% of clay.
Thus, this study was to investigate the effects of tillage on soil biochemical properties and maize grown in
latosolic red soil of Southern China.
The Ferrallisols include four soil great groups: Latosols (main land uses forest and dryland), corresponding to Acrisols in the World Reference Base for Soil Resources by IUSS Working Group WRB (2014);
Latosolic Red soils (main land uses forest and dryland), also corresponding to Acrisols (IUSS Working Group WRB 2014); Red soils (main land use forest), corresponding to Cambisols (IUSS Working Group WRB 2014); and Yellow soils (main land use forest), also corresponding to Cambisols (IUSS Working Group WRB 2014).
Latosolic soils are suitable for banana production to be well-drained, deep (over 100 cm), medium texture to clayish, well-structured, permeable, fertile, neutral to slightly acidic pH, no risk of flooding and salinity free (SALOMAO; SIQUEIRA, 2015).
The increase in electrical conductivity of the soil saturation extract (CEes), caused by the use of solid and liquid waste produced during the processing of cassava as a source of fertilization, was observed when maize was cultivated on
latosolic dystrophic Inceptisol located in Minas Gerais, Brazil, and CEes of 0.80 dS [m.sup.-1] was measured when the highest dose of residue was applied [24].
In the study area, three soil types predominate: Ferric Red Latosols, derived from basalt and occurring with lower proportion only in the flat top areas in the basin; Distroferric Red Nitosols, with
latosolic characteristics, which develop in areas with average slopes; and the Fluvic Neosols with alluvial features (hydromorphic), which are found near some drainage channels.
Thus, it is likely that a true
latosolic, microgranular structure began to develop in the late Cretaceous, reaching a climax from the mid-Tertiary onwards.
The soil in the area was classified as eutrophic red-yellow
Latosolic Argisol (Ultisol) (EMBRAPA, 1999).
According to the Brazilian Soil Classification System (SANTOS et al., 2006), the experiments were conducted on a Typical Eutroferric Red Nitosol with a moderate A horizon and clayey texture, Typical Eutroferric Red Latosol with a moderate A horizon and very clayey texture, Eutroferric
Latosolic Red Nitosol with a moderate A horizon and very clayey texture, and Typical Dystrophic Red Latosol with a moderate A horizon and medium texture for the municipalities of Arapongas, Cambe, Londrina and Paranavai, respectively.
These soils were ascribed to Latosols based on field observations, namely the presence of a
latosolic horizon (similar to the Ferralic horizon; 1USS Working Group WRB 2006), namely a subsurface horizon resulting from a long and intense weathering in which the clay fraction is dominated by low-activity clays such as kaolinite and iron (Fe) and Al (hydr)oxides), and on some analytical determinations made on the [B.sub.w] horizons (particle size distribution and Si[O.sub.2]/[Al.sub.2][O.sub.3] molecular ratio, Ki and Si[O.sub.2]/ [Al.sub.2][O.sub.3] + [Fe.sub.2][O.sub.3] molecular ratio, Kr) (data not shown).