Phosphorus acquisition by wheat from organic and inorganic sources labelled with 32P and 33P radioisotopes [PDF]
Scientia Agricola, 2020 : Investment in soil phosphorus (P) capital in the tropics is often constrained by poor availability of mineral fertiliser to small-scale farmers. Consequently, new sustainable agricultural cropping strategies are required to maintain fertility and ...
Franklin M. Scrase +4 more
doaj +3 more sources
Phosphorus-32 in the Phage Group: radioisotopes as historical tracers of molecular biology [PDF]
Studies in History and Philosophy of Science Part C:Studies in History and Philosophy of Biological and Biomedical Sciences, 2009 The recent historiography of molecular biology features key technologies, instruments and materials, which offer a different view of the field and its turning points than preceding intellectual and institutional histories. Radioisotopes, in this vein, became essential tools in postwar life science research, including molecular biology, and are here ...
Angela N. H. Creager
exaly +3 more sources
Investigation of the Role of Organic Acids on the Phosphorus and Zinc Uptake by Corn in Calcareous Soils by Using 32P and 65Zn Radioisotopes [PDF]
مجله علوم و فنون هستهای, 2014 To investigate the effect of oxalic and citric organic acids on the uptake of Phosphorus and Zinc by corn (Zea mays L.), an experiment was conducted by the use of radioactive potassium phosphate and zinc sulfate fertilizers in microcosm and greenhouse ...
Sareh Nezami +4 more
doaj +1 more source
Nutrient absorption in lambs fed diets containing different amounts of phosphorus [PDF]
Revista Mvz Cordoba, 2013 Objective. Evaluate the effect of increasing P intake on nutrient digestibility, and compare the true and apparent absorption coefficients of P and Ca in lambs. Materials and methods. Twenty-four Santa Ines sheep, with an average weight of 33.6 ± 1.6 kg,
René Patiño P. +5 more
doaj +3 more sources
Characterisation of soil phosphorus forms in the soil-plant system using radioisotopic tracer method [PDF]
Plant, Soil and Environment, 2021 Soil incubation and pot experiments were conducted to follow the sorption processes of added phosphorus (P) fertiliser using the radioisotope tracer technique. Increasing doses of P fertiliser (40, 80, 160, 320 mg P/kg soil) were added to Chernozem and Arenosol and incubated for 1, 3, and 13 weeks. After incubation, perennial ryegrass (Lolium perenne L.
Andrea Balla Kovács +7 more
openaire +2 more sources
Soil solution phosphorus turnover: derivation, interpretation, and insights from a global compilation of isotope exchange kinetic studies [PDF]
Biogeosciences, 2018 The exchange rate of inorganic phosphorus (P) between the soil solution and solid phase, also known as soil solution P turnover, is essential for describing the kinetics of bioavailable P.
J. Helfenstein +3 more
doaj +1 more source
Autoradiography of Pi Distribution in Barley Seedlings
Bio-Protocol, 2014 Phosphorus-32 and Phosphorus-33 are radioisotopes of phosphorus. These isotopes are used to trace ionic phosphorus and phosphorus compounds. This protocol is used to follow the movement of inorganic phosphate (PO43-) from a leaf tip to the rest of the ...
Satomi Kanno +3 more
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Auto-atténuation de la radiation β dans les sources radioactives épaisses
CHIMIA, 1961 In measuring β-radioactivity of thick sources, one has to take in account the phenomenon of self-weakening in the source. The present paper shows if the choice of the distance between source and counter on one hand, and of the chemical nature of the ...
Pierre Lerch, A. Vogel-Ludin
doaj +1 more source
Plant Methods, 2017 Background Changing the phosphorus (P) nutrition leads to changes in plant metabolism. The aim of this study was to investigate how these changes are reflected in the distribution of 33P and the isotopic composition of oxygen associated to P (δ18OP) in ...
Verena Pfahler +3 more
doaj +1 more source