Results 81 to 90 of about 149,608 (284)

Growth, N-uptake and Yield Attributes of Sunflower Plants Grown on an Aridisols in Response to N-fertilizer [PDF]

Journal of Stress Physiology & Biochemistry
A field experiment was conducted to study the impact of different nitrogen fertilizer rates (0, 50, 100 and 150 kg N/ha as urea) on dry matter yield, nitrogen uptake (N), seed yield, seed oil content and properties of sunflower using the 15N labeling ...
F. Kurdali, J. Attar
doaj  

Enxertia e água de irrigação carbonatada no transporte de 15N e na produção do tomateiro Grafting and carbonated irrigation water in transport of 15N and in the tomato production

Revista Brasileira de Engenharia Agrícola e Ambiental, 2007
Estudaram-se os efeitos da aplicação de CO2, via água de irrigação, e da enxertia do tomateiro no transporte de 15N e na produção do tomateiro. Os tratamentos foram arranjados em delineamento inteiramente ao acaso no esquema fatorial 2 x 2 (com e sem CO2
Roberto B. F. Branco, Rumy Goto, Ary G. Carneiro Júnior, Vandeir F. Guimarães, João D. Rodrigues, Paulo C.O. Trivelin, Liciana V. de A. Silveira   +6 more
doaj   +1 more source

Testing deep placement of an 15N tracer as a method for in situ deep root phenotyping of wheat, barley and ryegrass

Plant Methods, 2019
Background Deep rooting is one of the most promising plant traits for improving crop yield under water-limited conditions. Most root phenotyping methods are designed for laboratory-grown plants, typically measuring very young plants not grown in soil and
Si Chen, Simon Fiil Svane, Kristian Thorup-Kristensen   +2 more
doaj   +1 more source

Dark Septate Endophytic Fungi Help Tomato to Acquire Nutrients from Ground Plant Material

Frontiers in Microbiology, 2017
Dark septate endophytic (DSE) fungi are facultative biotrophs that associate with hundreds of plant species, contributing to their growth. These fungi may therefore aid in the search for sustainable agricultural practices.
Carlos Vergara, Karla E. C. Araujo, Segundo Urquiaga, Nivaldo Schultz, Fabiano de Carvalho Balieiro, Peter S. Medeiros, Leandro A. Santos, Gustavo R. Xavier, Jerri E. Zilli   +8 more
doaj   +1 more source

Contribution of nitrification and denitrification to N2O emissions from urine patches [PDF]

, 2007
Urine deposition by grazing livestock causes an immediate increase in nitrous oxide (N2O) emissions, but the responsible mechanisms are not well understood. A nitrogen-15 (15N) labelling study was conducted in an organic grass-clover sward to examine the
Allen, Ambus, Ambus, Bateman, Bergsma, Bol, Clough, Clough, Conrad, Crutzen, Davidson, De Klein, De Klein, Firestone, Glatzel, Grundmann, Harada, Hutchinson, Kester, Koops, Kyveryga, Mathieu, Mette S. Carter, Monaghan, Monaghan, Mosier, Okereke, Panek, Petersen, Poth, Robertson, Ryden, Schmidt, Shand, Sherlock, Simek, Stevens, Stevens, Stevens, Sørensen, Thomas, Tiedje, Van Groenigen, Weier, Whitehead, Williams, Wrage, Wrage, Wrage, Yamulki, Yoshida   +50 more
core   +1 more source

15N excitation contribution to 48Ca(16O, 15N)49Sc reaction

Physics Letters B, 1980
Abstract The effect of 15 N excitation process is studied in the reaction 48 Ca( 16 O, 15 N) 49 Sc. The excitation process is included into a generalized non-local optical potential for a scattersing 15 N- 49 Sc and is found to be responsible for a shift of a grazing peak in the exact finite-range DWBA calculation.
openaire   +1 more source

Elimination of 15N-thymidine after oral administration in human infants.

PLoS ONE
BackgroundWe have developed a new clinical research approach for the quantification of cellular proliferation in human infants to address unanswered questions about tissue renewal and regeneration.
Niyatie Ammanamanchi, Jessie Yester, Anita P Bargaje, Dawn Thomas, Kathryn C Little, Shannon Janzef, Kimberly Francis, Jacqueline Weinberg, Jennifer Johnson, Thomas Seery, Tyler Hutchinson Harris, Bryan J Funari, Kirsten Rose-Felker, Matthew Zinn, Susan A Miller, Shawn C West, Brian Feingold, Hairu Zhou, Matthew L Steinhauser, Timothy Csernica, Robert Michener, Bernhard Kühn   +21 more
doaj   +1 more source

Did belowground N transfer in mixed plantations of Acacia mangium and Eucalyptus meet the Stress Gradient Hypothesis? [PDF]

, 2019
Belowground interactions in mixed forest plantations remain poorly understood as that of short-tenn nitrogen (N) transfer from N-fixing trees to non-N-fixing trees (Non-NFT) depending on nutrient availability. We investigated in this facilitation process
Amaral Guerrini, I., Bordron, Bruno, Bouillet, Jean-Pierre, De Oliveira, Ivanka Rosada, Gonçalves, José Leonardo M., Ribeiro Paula, Ranieri, Robin, Agnès, Vicente Ferraz, Alexandre   +7 more
core  

Stable isotope probing: Technical considerations when resolving ¹⁵N-labeled RNA in gradients [PDF]

, 2010
RNA based stable isotope probing (SIP) facilitates the detection and identification of active members of microbial populations that are involved in the assimilation of an isotopically labeled compound.
Addison, Sarah Louise, Lloyd-Jones, Gareth, McDonald, Ian R.   +2 more
core   +2 more sources

The planktonic food web in the Gulf of Naples based on the analysis of carbon and nitrogen stable isotope ratios

Marine Ecology, EarlyView., 2023
Abstract Plankton play a key role in marine food webs by producing and transferring organic matter and energy to higher trophic levels. To define the trophic structure and interactions within the planktonic communities in the Gulf of Naples, we determined carbon and nitrogen stable isotope ratios in particulate organic matter (POM, <20 μm ...
Louise Merquiol, Maria Grazia Mazzocchi, Isabella D'Ambra   +2 more
wiley   +1 more source