Results 21 to 30 of about 4,321,398 (287)

Mountain recreation impact on changes in soil penetration resistance of spruce forests

Ukrainian Journal of Forest and Wood Science, 2023
The uniqueness of the Carpathian Mountain Forest ecosystems, a large part of which belongs to nature conservation areas, attracts a significant number of visitors annually. Intensive tourist flow on popular hiking trails leads to recreational digression,
Y. Ivanenko, G. Lobchenko, V. Yukhnovskyi   +2 more
doaj   +1 more source

EFFECTS OF CLAY FRACTION MINERALOGY ON PHYSICAL ATTRIBUTES OF A YELLOW ULTISOL TREATED WITH CHISELING [PDF]

Engenharia Agrícola
The objective of this study was to evaluate the influence of minerals in the clay fraction on physical attributes of Yellow Ultisol cultivated with sugarcane and prepared with two different treatments: chiseling across the entire area and chiseling only ...
Deise C. S. Nogueira, Carolina Fernandes, Luma C. de Souza, Lívia A. Camargo, Antonio S. Ferraudo   +4 more
doaj   +2 more sources

Soil management effect on soil penetration resistance in the vineyard

Journal of Agricultural Engineering, 2013
In environments characterized by steep slopes or arranged in terraces, among the shallow tillage systems, rototilling is extensively used. However, the effect of the repeated use of rototilling has a considerable influence on soil characteristics; it appears finely powdered, soft and without structure.
CATANIA, Pietro, VALLONE, Mariangela, PIPITONE, Felice, ARGENTO, Gioacchino Francesco, Spartà, G, LAUDICINA, Vito Armando   +5 more
openaire   +5 more sources

The Relationship Between Soil Heterogeneity and Cellulolytic Activity

Ekológia (Bratislava), 2021
This article examines the relationship between soil heterogeneity and cellulolytic activity. The investigated substrate was a typical chernozem (black soil). Cellulolytic activity was studied by the application method across a regular grid of 7×15 points
Zadorozhnaya Galina, Andrusevych Katerina   +1 more
doaj   +1 more source

Correlation between Strengths and Penetration Resistances for Gravelly Soils

Soils and Foundations, 1993
High-quality undisturbed gravel samples, 30 cm in diameter and 60 cm high, are obtained by the in-situ freezing method at four sites. Both the undrained cyclic shear strength and drained shear strength of these samples are measured by using a large scale triaxial test apparatus.
Suzuki, Y., Goto, S., Hatanaka, M., Tokimatsu, K.   +3 more
openaire   +2 more sources

Research on the Penetration of Spudcan Foundation for Mobile Jack-Up Platform

南方能源建设, 2023
[Introduction] The spudcan foundation is the key structure of the mobile jack-up platform, which displaces surrounding soil during its penetrating installation.
Zehua PAN, Bo LIU, Donghua LIU
doaj   +1 more source

Evaluation of the Performance of Locally Developed Combine Equipment Used for Several Agricultural Operations at Once

مجلة ديالى للعلوم الزراعية, 2023
A field experiment was conducted to evaluate the performance of locally developed combine equipment used for several agricultural operations at once in a silt clay loam soil texture. Three factors were used.
Shaimaa Sami Dowad, Abdulrazzak Abdullatif Jasim   +1 more
doaj   +1 more source

Using the Response Surface Methodology to Predict the Effect of Different Moisture Levels on the Bulk Density and Penetration Resistance of Soil Under Different Operating Conditions [PDF]

Journal of Agricultural Machinery
Soil properties play a fundamental role in the success of agricultural operations through their impact on crop growth and quality, as they determine their ability to retain water and absorb nutrients, and affect soil aeration and the root system. The aim
M. ALmoosa, S. Al-Atab, S. Almaliki
doaj   +1 more source

Verification of strength resistance of sandy soil using small scale penetrometer tests

Przegląd Naukowy Inżynieria i Kształtowanie Środowiska, 2021
This study focuses on utilizing cone penetrometer models to determine strength (resistance) of sandy soil and also assessment how the relative density and the angle of friction effects on the measured cone penetration resistance in sandy soil.
Hiba D. Saleem, Asad H. Aldefae, Wissam H. Humaish   +2 more
doaj   +1 more source

Standard Penetration Resistance in Cohesionless Soils

Soils and Foundations, 1976
ABSTRACT An extensive number of penetration tests were performed in a laboratory model. The results obtained were compared with field penetration tests in three sites of different characteristics with a view to obtain a general relationship between various penetration devices which are to be used in evaluating the strength of sandy soils.
openaire   +2 more sources