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Natural radionuclides in phosphatic fertilizer and their behaviour of absoption and accumulation in soils and crops

Technical Report:

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.
Authors:
Jingjian, Chen; Yongyi, Zhu; Juncheng, Yang; Baming, Gu [1] 
  1. Chinese Academy of Agricultural Sciences, Beijing, BJ (China). Inst. of Application of Atomic Energy
Publication Date:
Jun 01, 1990
Product Type:
Technical Report
Report Number:
CNIC-00419; CSNAS-0033.
Reference Number:
SCA: 540230; PA: AIX-23:010932; SN: 92000637686
Resource Relation:
Other Information: PBD: Jun 1990
Subject:
54 ENVIRONMENTAL SCIENCES; FERTILIZERS; RADIOISOTOPES; PHOSPHATE MINERALS; RADIUM 226; ACTIVITY LEVELS; BUILDUP; CROPS; PHOSPHATES; POTASSIUM 40; RADIOACTIVITY; SOILS; THORIUM 232; URANIUM 238; 540230; RADIOACTIVE MATERIALS MONITORING AND TRANSPORT
OSTI ID:
10111334
Research Organizations:
China Nuclear Information Centre, Beijing, BJ (China)
Country of Origin:
China
Language:
Chinese
Other Identifying Numbers:
Other: ON: DE92613454; TRN: CN9101694010932
Availability:
OSTI; NTIS (US Sales Only); INIS
Submitting Site:
INIS
Size:
16 p.
Announcement Date:
Jun 30, 2005

Technical Report:

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}
}