Abstract:

Low pH and severe acidification was a major constraint to sugarcane productivity in the sugarcane
region of Zhanjiang. In order to improve the sugarcane production and modify the acid soil limiting factors, the
effect of applying lime in acid soil on soil properties and the yield，sugar content in sugarcane was examined by
using the soil culture experiment and pot experiment. The results of the soil culture experiment showed that the
lime applied was significantly positive correlated with the pH value and the availability of nitrogen, calcium,
magnesium, sulfur, silicon, but the availability of iron, manganese was significantly negatively correlated in the
test soil. It was means that the rational application of lime in acid soil can increase soil pH value and improve
the available nutrients so that improve the acidic soil productivity. The results of pot culture experiment also
showed that lime applied in acid soil, the yield and sugar content of sugarcane improved significantly, As one
kilogram soil supplied with 1.2 gram lime, the cane yield and sugar content were increased by 14.2% and
2.4%. But when lime application too much, the unit of increase the amount of lime on cane yield and sugar
content showed a negative effect.