Takashi Muraoka

• Abstract

  The low availability of phosphorus (P) in soil is a major constraint to the optimal development of plants in tropical regions. Many studies have demonstrated the need to improve the use of P, especially in areas where concentrations of P in the soil are considered low due to soil genesis and / or insufficient application of fertilizers. Plants originating in or adapted to soils with low P…

  Evaluation of the efficiency of phosphorus uptake by rice and beans cultivars related to root architecture, using the isotope dilution technique with 32P and 33P, AP.R
• Environment monitoring of cadmium and zinc input into food chain, through vegetables, using Cd-109 and Zn-65 radiotracers, AP.R
• XVI International Plant Nutrition Colloquium, AR.EXT

(Only some records are available in English at this moment)

• Abstract

  Phosphorus (P) is the most limiting nutrient for crop yields in tropical soils. More than 90 % of the phosphorus sources used in Brazil and around the world are fully soluble, however, mainly in tropical soils, the use of fully soluble sources may not be the most appropriate, since the P supplied through fertilizer, at the same time increasing the concentration of P in soil solution favor…

  Manufacture and agronomic evaluation of potential phosphate fertilizers, BP.DR

• Abstract

  The evaluation of the availability of any plant nutrient begins with a selection of a proper extractor that must simulate as closely as possible the solvent power plants roots, is low cost, and does not present danger of contamination to the environment. However, the efficiency of an extractor is dependent on its composition and how it is employed for extraction methodology, and its valid…

  Assessment of availability of Cu and Zn by chemical extractor organic acids, BP.IC

• Abstract

  Cadmium (Cd) is a toxic element to plants, animals and humans. Cd is particularly dangerous due to its relatively high mobility in soils and transfer to plants. Moreover, plants growing in contaminated soils can accumulate Cd in edible tissues in large quantities without any visible signs. Due to the increasing concern about the intake of Cd in foods, the risks of its potential entry into…

  Genotypic variation of rice plants exposed to cadmium (109Cd): nutritional, biochemical and ultrastructural assessment, BP.PD

(Only some records are available in English at this moment)

• Abstract

  The low availability of phosphorus in soil is a major constraint to the optimal development of plants in tropical regions. Many studies have demonstrated the need to improve the use of P fertilizer. Plants adapted to soils with low P concentrations tend to develop more effective mechanisms of roots exploration, increasing the length and density. Thus, the objective of this work is to eval…

  Bean and rice efficiency on soil p uptake evaluated by root architecture and p isotope technique, BE.EP.DR