Abstract
The systematic data on the radioactivity of U, Th, Ra and {sup 40}K in phosphate rocks, phosphatic fertilizers and soil are given. The radioactive composition and radioactivity in phosphatic fertilizers vary with different kinds of phosphatic fertilizers. The radioactive compositions in the phosphatic fertilizers made from phosphate rock are the same as that in the original phosphate rock, but the radioactivity is only 50{approx}60% of the original. The natural uranium in the compound fertilizer made from phosphoric acid is several times higher than that in the phosphate rock, and the other radionuclides were separated during the process of forming phosphoric acid. In soil, the radioactivity varies with the soil types. The U content is slightly higher in the south region with red earth and the {sup 40}K is higher in the north region with black earth, but all are in normal level. Usually, the radioactivity of phosphate rock and phosphatic fertilizer is between the natural background of soil and the limitation of radioactive protection, but the radioactivity of {sup 226}Ra in some phosphate rocks and phosphatic fertilizers in Guizhou and Hunan is higher than the permitted limitation set by the government.
Jingjian, Chen;
Yongyi, Zhu;
Juncheng, Yang;
Baming, Gu
[1]
- Chinese Academy of Agricultural Sciences, Beijing, BJ (China). Inst. of Application of Atomic Energy
Citation Formats
Jingjian, Chen, Yongyi, Zhu, Juncheng, Yang, and Baming, Gu.
Natural radionuclides in phosphatic fertilizer and their behaviour of absoption and accumulation in soils and crops.
China: N. p.,
1990.
Web.
Jingjian, Chen, Yongyi, Zhu, Juncheng, Yang, & Baming, Gu.
Natural radionuclides in phosphatic fertilizer and their behaviour of absoption and accumulation in soils and crops.
China.
Jingjian, Chen, Yongyi, Zhu, Juncheng, Yang, and Baming, Gu.
1990.
"Natural radionuclides in phosphatic fertilizer and their behaviour of absoption and accumulation in soils and crops."
China.
@misc{etde_10111334,
title = {Natural radionuclides in phosphatic fertilizer and their behaviour of absoption and accumulation in soils and crops}
author = {Jingjian, Chen, Yongyi, Zhu, Juncheng, Yang, and Baming, Gu}
abstractNote = {The systematic data on the radioactivity of U, Th, Ra and {sup 40}K in phosphate rocks, phosphatic fertilizers and soil are given. The radioactive composition and radioactivity in phosphatic fertilizers vary with different kinds of phosphatic fertilizers. The radioactive compositions in the phosphatic fertilizers made from phosphate rock are the same as that in the original phosphate rock, but the radioactivity is only 50{approx}60% of the original. The natural uranium in the compound fertilizer made from phosphoric acid is several times higher than that in the phosphate rock, and the other radionuclides were separated during the process of forming phosphoric acid. In soil, the radioactivity varies with the soil types. The U content is slightly higher in the south region with red earth and the {sup 40}K is higher in the north region with black earth, but all are in normal level. Usually, the radioactivity of phosphate rock and phosphatic fertilizer is between the natural background of soil and the limitation of radioactive protection, but the radioactivity of {sup 226}Ra in some phosphate rocks and phosphatic fertilizers in Guizhou and Hunan is higher than the permitted limitation set by the government.}
place = {China}
year = {1990}
month = {Jun}
}
title = {Natural radionuclides in phosphatic fertilizer and their behaviour of absoption and accumulation in soils and crops}
author = {Jingjian, Chen, Yongyi, Zhu, Juncheng, Yang, and Baming, Gu}
abstractNote = {The systematic data on the radioactivity of U, Th, Ra and {sup 40}K in phosphate rocks, phosphatic fertilizers and soil are given. The radioactive composition and radioactivity in phosphatic fertilizers vary with different kinds of phosphatic fertilizers. The radioactive compositions in the phosphatic fertilizers made from phosphate rock are the same as that in the original phosphate rock, but the radioactivity is only 50{approx}60% of the original. The natural uranium in the compound fertilizer made from phosphoric acid is several times higher than that in the phosphate rock, and the other radionuclides were separated during the process of forming phosphoric acid. In soil, the radioactivity varies with the soil types. The U content is slightly higher in the south region with red earth and the {sup 40}K is higher in the north region with black earth, but all are in normal level. Usually, the radioactivity of phosphate rock and phosphatic fertilizer is between the natural background of soil and the limitation of radioactive protection, but the radioactivity of {sup 226}Ra in some phosphate rocks and phosphatic fertilizers in Guizhou and Hunan is higher than the permitted limitation set by the government.}
place = {China}
year = {1990}
month = {Jun}
}