关键词: 稻米, 矿质元素, 产地, 品种

Abstract: Fe, Zn, Cu, Mn, Ca and Mg six mineral elements content variation in rice of different varieties, types and different producing areas were analyzed in this paper. The results are followed:①The mean content of the six mineral elements in rice is Mg >Ca >Zn >Mn >Cu >Fe. Variant coefficient of Fe content is the biggest, the second is Ca and the variant coefficient of Zn content is the lowest of rice among different rice varieties. The mean content of the six mineral elements in rice is japonica rice >indica rice >hybrid rice among different rice types; ②The difference in content of Fe, Zn, Cu, Mn, Ca and Mg six mineral elements in rice from various producing areas is obviously and the general trend is that the content of the six elements in rice from Yaan and Wenjiang is relatively higher and from Huili is relatively lower. Variant coefficient of Cu content is the biggest, the second is Fe and the variant coefficient of Zn content is the lowest of rice among different producing areas; ③There is significant or extremely significant negative correlation between pH, available N content in soil and Mn content in rice, the content of available K in soil and Zn, Cu content in rice, the content of Ca in soil and Mg content in rice, the content of Cu in soil and the content of Ca in rice. There is significant positive correlation between content of Mg in soil and content of Zn in rice.

Key words: rice, mineral elements, producing area, variety