As a kind of non-toxic, harmful, resource utilization wastewater, the rubber wastewater had become feasible in reused in farmland. The simulation experiment had directly irrigated different concentrations of rubber wastewater in the soil by using dry wet cycle. The results showed that the early soil physicochemical properties were significantly affected by directly irrigated mid-low concentration of rubber wastewater. The soil bulk density was average reduced by 1.91%; the maximum, hollow billet and minimum capacity had increased by 15.84%, 21.29%, 45.07%; water stability reunion body has increased more than 35%, but the regulation function had reduced within the number of irrigation increased. What＇s more, by irrigated high concentration of rubber wastewater, the soil bulk density had increased, the water capacity had become lower, the soil structure had been destroyed. To sum up, directly irrigate high concentration of rubber wastewater in the soil would jam soil pore, make the soil harden and couldn＇t be farmed. Instead, the soil structure could be effectively improved in a short-term irrigation by reducing the concentration of rubber wastewater. Thus, rubber wastewater reused in farmland would become a new idea.
Chinese Journal of Tropical Agriculture
soil physicochemical properties