Abstract:

In strawberry , Cadmium regularly distributed in accordance with accumulation factors. In light of cd-decreasing order the arrangements were root , stems , leaves and fruit . Cadmium absorption amount in strawberry increased with time , while the cadmium absorption rate gradually decreased in the meantime. In the nutrition liquid , the cadmium absorption rate reached the peak after 40 minutes , and then the absorption rate gradually reduced. The experiment of hydroponics culture showed that Ca and P could reduce the cadmium absorption.The pot experiment showed CaCO₃ and Na₂SiO₃ could decrease the accumulation of cadmium in strawberryps fruit and other organs. The reduction of cadmium in strawberry may be relevant to the reduction of soil acid degree and the resistance of Ca to cadmium. CaCO₃ appeared more significant in reducing the accumulation of cadmium in strawberryps fruit and other organs. It was a practical regulative measure to add some CaCO₃ into the soil in order to decrease the accumulation of cadmium.

Key words: Strawberry, Cadmium, Accumulation