A long‐term field soil survey by acoustic techniques: Part II. Nonlinear acoustics

2007 ◽  
Vol 121 (5) ◽  
pp. 3164-3164
Author(s):  
Zhiqu Lu
Keyword(s):  
Nonlinear Acoustics ◽  
Soil Survey ◽  
Field Soil ◽  
Acoustic Techniques ◽  
Term Field

scholarly journals Long-term changes in the area of saline soils recognized by LANDSAT images in Shauldersk irrigated massive

2014 ◽  
pp. 49-65 ◽  
Author(s):  
I. Yu. Savin ◽  
A. . Otarov ◽  
A. V. Zhogolev ◽  
M. A. Ibraeva ◽  
S. . Duseikov
Keyword(s):  
Satellite Imagery ◽  
Computer Analysis ◽  
Soil Survey ◽  
Saline Soils ◽  
Field Soil ◽  
The South ◽  
Landsat Images ◽  
Long Term Changes

Possibilities to use the archive images obtained by Landsat TM5 in different years have been comprehensively analyzed with the aim at recognizing the soils with different salinity degree. Special approaches were proposed to study the dynamics of saline soils by using the satellite imagery. Based upon a computer analysis of the information transmitted by Landsat in 1987-1988 and 2009-2010 as well as the data of field soil survey, it seemed reasonable to identify changes in the area of such soils in Shauldersk irrigated massive (the South-Kazakhstan region, Republic of Kazakhstan). It was concluded that the share of saline soils revealed an increase at the studied territory within the period from 1987 to 2010.

Long Term Field Test Results of Experimental EPDM and PUF Roofing

1990 ◽  
Author(s):  
David M. Bailey ◽  
Stuart D. Foltz ◽  
Myer J. Rosenfield
Keyword(s):  
Field Test ◽  
Test Results ◽  
Term Field

Critical plant phosphorus for winter wheat assessed from long-term field experiments

2021 ◽  
Vol 126 ◽  
pp. 126263
Author(s):  
Mario Fontana ◽  
Gilles Bélanger ◽  
Juliane Hirte ◽  
Noura Ziadi ◽  
Saïd Elfouki ◽  
...  
Keyword(s):  
Winter Wheat ◽  
Field Experiments ◽  
Term Field

scholarly journals Long-term field fertilization experiment with energy willow (Salix sp.) − Elemental composition and chlorophyll fluorescence in the leaves

2018 ◽  
Vol 67 (1) ◽  
pp. 91-103
Author(s):  
László Simon ◽  
Marianna Makádi ◽  
György Vincze ◽  
Zsuzsanna Uri ◽  
Katalin Irinyiné Oláh ◽  
...  
Keyword(s):  
Chlorophyll Fluorescence ◽  
Energy Crop ◽  
Municipal Sewage ◽  
Municipal Sewage Sludge ◽  
Fertilization Experiment ◽  
Nitrogen Concentrations ◽  
Set Up ◽  
Leaf Chlorophyll Fluorescence ◽  
Term Field

A small-plot long-term field fertilization experiment was set up in 2011 with willow (Salix triandra x Salix viminalis ’Inger’) grown as an energy crop in Nyíregyháza, Hungary. The brown forest soil was treated three times (in June 2011, May 2013, May 2016) with municipal biocompost (MBC), municipal sewage sludge compost (MSSC) or willow ash (WA), and twice (June 2011, May 2013) with rhyolite tuff (RT). In late May – early June 2016 urea (U) and sulphuric urea (SU) fertilizers were also applied to the soil as top-dressing (TD). These fertilizers and amendments were also applied to the soil in 2016 in the combinations; MBC+SU, RT+SU, WA+SU and MSSC+WA. All the treatments were repeated four times. In July 2016 the highest nitrogen concentrations in willow leaves were measured in the U (3.47 m/m%) and SU (3.01 m/m%) treatments, and these values were significantly higher than the control (2.46 m/m%). An excess of nitrogen considerably reduced the Zn uptake of the leaves, with values of 39.5 μg g-1 in the U treatment, 53.4 μg g-1 in the SU treatment, and 63.5 μg g-1 in the control. All other amendments or TDs, except for WA, enhanced the specific potassium concentrations in willow leaves compared to the control. No significant quantities of toxic elements (As, Ba, Cd, Pb) were transported from soil amendments or TDs to the willow leaves. In July 2016 the most intensive leaf chlorophyll fluorescence was observed in the MSSC and MSSC+WA treatments.

Long-term field comparison of ceramic and poly(tetrafluoroethene) porous cup soil water samplers

1992 ◽  
Vol 26 (10) ◽  
pp. 2005-2011 ◽  
Author(s):  
Claus Beier ◽  
Karin Hansen ◽  
Per Gundersen ◽  
Bjoern R. Andersen ◽  
Lennart Rasmussen
Keyword(s):  
Soil Water ◽  
Term Field
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