水稻对氟化物吸收分布积累规律的分析

The Effect of Fluorine-Containing Emissions on Rice Quality and Yield

现场同步采集水稻植物样品和大气样品,分别测定其中氟含量,分析研究水稻不同部位对氟化物吸收、积累的规律,为提高粮食生产和质量安全,改善农业生态环境,提供科学防治参考依据。

Atmospheric pollution of fluoride from industrial plants has been studied for its effect on the yield and quality of rice during the period 2003-2004 in 4 polluted areas of Zhejiang Province.The fluoride concentration in leaves,stem,and hulls of rice growing in polluted areas was 2～6 times higher than in the control and yields of rice in the polluted areas had decreased.In comparison of fluoride concentrations in 2 seasonal ecotypes of rice in these areas,it was found that accumulation rate in the late season rice was heavier than that in the early season rice,and mean fluoride concentration of the late season rice is 1.94mg·kg^(-1),much higher than the China food standard for fluoride(1 mg·kg^(-1)).No correlation was found between soil fluoride concentration and fluoride concentration in rice.