Effectiveness of deep lime placement and tillage systems on aluminum fractions and soil chemical attributes in sugarcane cultivation

Combining deep soil tillage systems with lime application is a potential strategy for improving the sugarcane production in acidic soils. The authors evaluated influence of and on performance attributes, including acidity. A field study clayey-textured Rhodic Hapludox was conducted two growing seasons utilizing 3 × 2 factorial scheme comprising three without lime: conventional system (CT), strip-tillage (DT) modified (MDT). differed depth disturbance and/or positioning. In addition to stalk sugar yields, pH, acidity (Pac), organic carbon (SOC), solid-phase soil-solution calcium (Ca) magnesium (Mg), percentage distribution exchangeable (%Alex) non-exchangeable aluminum (%Alne) solid phase, total monomeric (%TM-Al) water extracts were analyzed determined. positioning by different influenced Al fractions. TM-Al existed exclusively as (OM-Al) showed little from treatments. contrast, Alex Alne highly varied according efficiency amendment. Soil chemical attributes yield parameters also treatments both seasons, highlighting residual effect liming. pH soluble (Caex Cas) (Mgex Mgs) explained variation %Alne. Pac correlated %Alex, whereas SOC %TM-Al. general, sucrose concentration, recoverable yields increased plant cane second ratoon. highest MDT, systems.