Results 21 to 30 of about 6,226 (230)

Method for in-field texture analysis of sugar beet roots using a handheld penetrometer

Acta Agriculturae Scandinavica. Section B, Soil and Plant Science, 2022
Methodology for analysing textural properties of sugar beet roots in the laboratory has previously been established. It has been shown to be reliable and of value in exploring relationships between textural properties, damage rates, and storability of ...
William English, Joakim Ekelöf, Françoise Vancutsem, Martijn Leijdekkers, Gunnar Kleuker, Christa M. Hoffmann   +5 more
doaj   +1 more source

Quality improvement by application of a revised standard – feasibility studies on 2500 soundings

Acta Polytechnica CTU Proceedings, 2023
CPT is a geotechnical investigation method that, depending on the geology, has been proved to be an essential tool to establish the Geotechnical Design Model. However, doubt has been raised about the quality of the data.
Håkan Garin, Gunilla Franzén
doaj   +1 more source

Integration of a Galvanic Cell-Based Sensor for Volumetric Soil Moisture into Penetration Resistance Measurements

AgriEngineering
Soil penetration resistance (Pr) measurement is important for assessing compaction and permeability; however, Pr is heavily dependent on soil moisture.
Erki Kivimeister, Risto Ilves, Kersti Vennik, Jüri Olt   +3 more
doaj   +1 more source

In Situ Needle Penetration Test and Its Application in a Sericite Schist Railway Tunnel, Southwest of China

Lithosphere, 2021
The sericite schist is a typical metamorphic soft rock. Large deformation of surrounding rock often occurs in the construction of a tunnel in this stratum.
Jiaxing Dong, Runxue Yang, Chenggang Guo, Meiqian Wang, Yonghong Wu, Yongfa Guo, Yiran Zhao, Gan Li   +7 more
doaj   +1 more source

RESISTANCE OF A RED LATOSOL TO PENETRATION: COMPARISON OF PENETROMETERS, MODEL ADJUSTMENT, AND SOIL WATER CONTENT CORRECTION [PDF]

Engenharia Agrícola, 2020
Penetration resistance can be determined directly in the field or in the laboratory. However, data obtained using the two methods are not directly comparable.
Thiago F. Duarte, Tonny J. A. da Silva, Edna M. Bonfim-Silva, Willian Fenner   +3 more
doaj   +1 more source

An IoT-enabled penetrometer with constant-rate penetration for accurate measurement of soil cone index

Cogent Engineering
Hand-pushed cone penetrometer has been utilized to assess soil compaction based on soil penetration resistance (SPR). However, the manual operation of these devices can be quite challenging and erroneous.
Vijay Mahore, Peeyush Soni, Prakhar Patidar, Rajendra Machavaram   +3 more
doaj   +1 more source

Evaluation of selected physical properties of soil in the vineyard

Acta Universitatis Agriculturae et Silviculturae Mendelianae Brunensis, 2011
There is registered approximately 18 000 ha of intensive vineyards in this time in Czech Republic. The intensive viticulture production is represented by high amount of working operations which are practised by using of mechanization.
Pavel Zemánek, Milan Michálek
doaj   +1 more source

Cone penetrometer moisture probe acceptance test report [PDF]

, 1996
This Acceptance Test Report (ATR) documents the results of WHC-SD-WM-ATP-146 (Prototype Cone Penetrometer Moisture Probe Acceptance Test Procedure) and WHC-SD-WM-ATP-145 (Cone Penetrometer Moisture Probe Acceptance Test Procedure). The master copy of WHC-
Barnes, G. A.
core   +1 more source

Uso de dois penetrômetros na avaliação da resistência mecânica de um latossolo vermelho distrófico The use of two penetrometers in the evaluation of soil strength in a distrophic red latosol

Engenharia Agrícola, 2010
A compactação do solo é um problema que interfere no crescimento radicular e na produção vegetal. O estudo foi realizado na estação experimental do Centro Federal de Educação Tecnológica de Cuiabá (CEFET), município de Santo Antônio do Leverger - MT.
Delmonte Roboredo, João C. de S Maia, Osvaldo J. de Oliveira, Cassiano G Roque   +3 more
doaj   +1 more source

Predicting Penetrometer Resistance from the Compression Characteristic of Soil

, 2012
Soil compaction is a serious issue that affects the growth of crop roots. Penetrometer resistance is often used as an indicator of the resistance of soil to root elongation. We developed a simple function to estimate penetrometer resistance from the soil
Gao, W., Ren, T., Watts, C. W., Whalley, W. R., Auneau, L., Bengough, A. G.   +5 more
core   +1 more source