Now showing items 1-10 of 296
Radionuclides, heavy metals and fluorine incidence at Tapira phosphate rocks, Brazil, and their industrial (by) products
(Elsevier B.V., 2006-01-01)
Inorganic phosphate fertilizers may contain radionuclides, heavy metals and fluorine. This paper presents the possible environmental hazards from Tapira phosphate rocks and their (by) products (Brazil) utilized as phosphate ...
Factors determining rock phosphate solubilization by microorganisms isolated from soil
Forty two soil isolates (31 bacteria and 11 fungi) were studied for their ability to solubilize rock phosphate and calcium phosphate in culture medium. Eight bacteria and 8 fungi possessed solubilizing ability. Pseudomonas ...
COMPARISON OF CHILEAN NATURAL PHOSPHATIC MINERALS
(Sociedad Chilena de la Ciencia del Suelo, 2006)
Composition of brazilian phosphate rocks used for cattle feed supplement. C
(In: RIO SYMPOSIUM ON ATOMIC SPECTOMETRY, 8., 2004, Parati. Book of Abstracts... Rio de Janeiro: Pontifícia Universidade Católica do Rio de Janeiro, 2004., 2015)
Uso de torta de filtro enriquecida com fosfato natural e biofertilizantes em Latossolo Vermelho distrófico
The use of biofertilizers associated with organic compound and phosphate rock can increase the availability of phosphorus in the soil, due to the increase of the microorganisms population. This study aimed at evaluating ...
Long term experiments with reactive phosphate rocks for grain crops in Cerrado soils.
(In: WORLD FERTILIZER CONGRESS OF CIEC, 16., 2014, Rio de Janeiro. Technological innovation for a sustainable tropical agriculture: proceedings. Rio de Janeiro: International Scientific Centre of Fertilizers, 2014., 2014)
Efectos del empleo de tres diferentes fuentes de fósforo en las dietas, sobre los rendimientos productivos de pollos broiler
The biological value of three phosphate feeds and the tissue concentration of some potentially toxic elements were assessed using two raw rock tricalcium phosphates (RRPA and RRPC), a dicalcium dehydrated phosphate (DPB) ...