Authors:
T. Martins Universidade de São Paulo Centro de Energia Nuclear na Agricultura Avenida Centenário 303 13416-000 Piracicaba Brazil

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E. De Nadai Fernandes Universidade de São Paulo Centro de Energia Nuclear na Agricultura Avenida Centenário 303 13416-000 Piracicaba Brazil

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A. Ferrari Universidade de São Paulo Centro de Energia Nuclear na Agricultura Avenida Centenário 303 13416-000 Piracicaba Brazil

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M. Bacchi Universidade de São Paulo Centro de Energia Nuclear na Agricultura Avenida Centenário 303 13416-000 Piracicaba Brazil

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F. Tagliaferro Universidade de São Paulo Centro de Energia Nuclear na Agricultura Avenida Centenário 303 13416-000 Piracicaba Brazil

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Abstract  

The tomato culture demands large quantities of mineral nutrients, which are supplied by synthetic fertilizers in the conventional cultivation system. In the organic cultivation system only alternative fertilizers are allowed by the certifiers and accepted as safe for humans and environment. The chemical composition of rice bran, oyster flour, cattle manure and ground charcoal, as well as soils and tomato fruits were evaluated by instrumental neutron activation analysis (INAA). The potential contribution of organic fertilizers to the enrichment of chemical elements in soil and their transfer to fruits was investigated using concentration ratios for fertilizer and soil samples, and also for soil and tomato. Results evidenced that these alternative fertilizers could be taken as important sources of Br, Ca, Ce, K, Na and Zn for the organic tomato culture.

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Journal of Radionalytical and Nuclear Chemistry
Language English
Size A4
Year of
Foundation
1968
Volumes
per Year
1
Issues
per Year
12
Founder Akadémiai Kiadó
Founder's
Address
H-1117 Budapest, Hungary 1516 Budapest, PO Box 245.
Publisher Akadémiai Kiadó
Springer Nature Switzerland AG
Publisher's
Address
H-1117 Budapest, Hungary 1516 Budapest, PO Box 245.
CH-6330 Cham, Switzerland Gewerbestrasse 11.
Responsible
Publisher
Chief Executive Officer, Akadémiai Kiadó
ISSN 0236-5731 (Print)
ISSN 1588-2780 (Online)