The application of 500 kg/ha zeolite
increased the growth and yield of rice growing
in contaminated soils, and decreased the total
concentration of lead and cadmium by up to
1.5 times. Zeolite reduced the level of
available lead and cadmium by half. In
addition, the application of zeolite reduced the
lead content of rice straw by 56%, and of rice
grain by 69%. It reduced the cadmium content
of the rice grain by up to 67%, compared to
the control.