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Huberty, L. E., K. L. Gross and C. J. Miller. 1998. Effects of nitrogen addition on successional dynamics and species diversity in Michigan old-fields. J. Ecol. 86:794-803. Effects of

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1683 1690 Bardgett, R. D., T. C. Streeter and R. Bol. 2003. Soil microbes compete effectively with plants for organic-nitrogen inputs to temperate grasslands. Ecology 84

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]. The aim of this study is to provide accurate experimental single nitrogen (N 2 ) adsorption data on a well-characterized activated carbon (EcoSorb) at pressure up to 2 MPa at three different temperatures (323, 353, and 383 K) thanks to a specific

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. 2016 . Az eredményes repcetermesztés sarokpontjai . Agrofórum . 8 : 24 - 27 . ISO 11261 . ( 1995 ): Soil Quality Determination of total nitrogen . Modified Kjeldahl method

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Abstract  

Methods for the determination of total carbon (TC), total nitrogen (TN), and total phosphorus (TP) in cattail (Typha domingensis) using cold and thermal neutron prompt gamma activation analysis (CNPGAA and TNPGAA) have been developed in the CNPGAA and TNPGAA facilities at the National Institute of Standards and Technology (NIST), and evaluated through the analysis of Standard Reference Materials (SRMs) in previous studies. There are major issues that impact the sensitivities of C, N and P using CNPGAA and TNPGAA including the effects of hydrogen content in samples, sample thickness and Compton scattering. However, interference from chlorine (Cl) in cattails has a major impact on the detection of P. This paper compares the effects of hydrogen content, sample thickness and Compton scattering on the sensitivities of C, N, and P between CNPGAA and TNPGAA and provides a resolution to the Cl interference on P in cattail.

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753 758 Andreasen, C., Litz, A. S., Streibig, J. C. (2006): Growth response of six weed species and spring barley ( Hordeum vulgare ) to increasing levels of nitrogen and

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Biologia Futura
Authors: Margit Kollaricsné Horváth, Borbála Hoffmann, István Cernák, Szilveszter Baráth, Zsolt Polgár, and János Taller

Introduction In the past 40 years, the doubling of agricultural food production of the world has been associated with a sevenfold increase in the use of nitrogen fertilizers ( Hirel et al., 2007 ). Although the harmful effects

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Cereal Research Communications
Authors: Zs. Szentpétery, M. Jolánkai, Cs. Kleinheincs, and G. Szöllősi

Bly, A.G. — Woodard, H.J. (2003): Foliar Nitrogen Application Timing Influence on Grain Yield and Protein Concentration of Hard Red Winter and Spring Wheat. Agronomy Journal, vol. 95. 335

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Cereal Research Communications
Authors: V. Zecevic, D. Knezevic, J. Boskovic, D. Micanovic, and G. Dozet

452 464 Guarda, G., Padovan, S., Delogu, G. 2004. Grain yield, nitrogen-use efficiency and baking quality of old and modern Italian bread-wheat cultivars grown at different

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Andersson, A. 2005. Nitrogen redistribution in spring wheat — Root contribution, spike translocation and protein quality. PhD thesis, Swedish University of Agricultural Sciences, Anlap, Swiss

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