Welcome to Chinese Agricultural Science Bulletin,

Chinese Agricultural Science Bulletin ›› 2017, Vol. 33 ›› Issue (29): 90-94.doi: 10.11924/j.issn.1000-6850.casb16090089

Special Issue: 土壤重金属污染 水稻

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Resistance Reduction Effect on Cd Content in Rice: Microporous Mineral Fertilizer with Potassium, Silicon and Calcium

Luo Siying1, Zhou Weijun1, Pan Chengliang2, Xin Benjun2, Cao Sheng1, Tan Jie1, Liu Pei1   

  1. (1College of Resources and Environment, Hunan Agricultural University, Changsha 410128;2Henan Zhongke Mingxing Fertilizer Limited Company, Tongbai Henan 474750)
  • Received:2016-09-19 Revised:2017-02-26 Accepted:2017-03-22 Online:2017-10-24 Published:2017-10-24

Abstract: The restoration effect of the paddy field of the heavy metals pollution application the mineral micropores fertilizer with potassium, silicon and calcium (MFPSC) was studied with the field experiment. The results showed the total grain number per panicle, the actual number grains per spike, and the ripening rate were increased, while the rice yield was promoted, and the increase ratio was up to 7.5 -16.0%, after the MFPSC was applied. The content of the alkali-hydrolyzable nitrogen, the available phosphorus, and the soil available potassium was improved, and the soil available Cd was decreased, so the Cd accumulation of the rice grain was induced and prevented, the Cd content of the rice grain was decreased, its greatest value was up to 38.6%, when MFPSC was employed. The trial results suggested that the application rates could not be less than 95kg/667m2.