关键词: 罗非鱼产品, 罗非鱼产品, 出口竞争力, 恒定市场份额模型

Abstract: The purpose of this study is to provide a basis for rational use of amendments and the relationship between the cadmium content in brown rice and the accumulation and transfer of cadmium in rice. The materials which could inhibit the cadmium accumulation in brown rice were screened from 6 kinds of amendments. Through statistical analysis of yield, cadmium content in brown rice, cadmium accumulation factors (AF) and transfer factors (TF) in different organs in different exceeding-standard rice groups, the effects of different amendments on the transfer and accumulation of cadmium in rice were discussed. The results indicated that compared with the control, the lower and middle concentration of C material and FA material could reduce the cadmium concentration in brown rice; FB material and the high concentration FD materials promoted the cadmium accumulation of brown rice. The ability of cadmium accumulation in different rice organs in no exceeding standard group followed the order: root＞stem＞ brown rice ＞leaf＞chaff, and in the exceeding standard group followed the order: root＞stem＞ brown rice ＞ chaff ＞ leaf. The transfer ability of chaff—brown rice was the strongest in no exceeding standard group, while the transfer ability of leaf—brown rice was the strongest in exceeding standard group.