Results 21 to 30 of about 35,473 (263)

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 Structure under Forest and Pasture Land-Uses Affecting Compressive Behavior and Air Permeability in a Subtropical Soil

Soil Systems, 2022
Machinery traffic and animal trampling can deform the soil and, consequently, impair soil pore functioning. This study aimed to evaluate how soil structure affects the compressibility, physical properties and air permeability of a Typic Paleudalf under ...
Luis Eduardo Akiyoshi Sanches Suzuki, Dalvan José Reinert, Deonir Secco, Paulo Torres Fenner, José Miguel Reichert   +4 more
doaj   +1 more source

A study on the impact Soil degree of Compactness on Soil Physical Quality index for Soils with varying gypsum content [PDF]

Tikrit Journal for Agricultural Sciences
Laboratory experiments were conducted to study the impact of soil compaction degree (DC%) defined as the ratio between natural bulk density (BD natural) and critical bulk density (BD critical) on Soil Physical Quality index (S-index) for seven soil ...
Ruwaida Saber
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

Pedotransfer functions for Irish soils – estimation of bulk density (ρ_b) per horizon type [PDF]

SOIL, 2016
Soil bulk density is a key property in defining soil characteristics. It describes the packing structure of the soil and is also essential for the measurement of soil carbon stock and nutrient assessment. In many older surveys this property was neglected
B. Reidy, I. Simo, P. Sills, R. E. Creamer   +3 more
doaj   +1 more source

Soil-Surface-Image-Feature-Based Rapid Prediction of Soil Water Content and Bulk Density Using a Deep Neural Network

Applied Sciences, 2023
This study aimed to develop a deep neural network model for predicting the soil water content and bulk density of soil based on features extracted from in situ soil surface images. Soil surface images were acquired using a Canon EOS 100d camera.
Donggeun Kim, Taejin Kim, Jihun Jeon, Younghwan Son   +3 more
doaj   +1 more source

SOIL BULK DENSITY AS RELATED TO SOIL PARTICLE SIZE DISTRIBUTION AND ORGANIC MATTER CONTENT [PDF]

Poljoprivreda, 2003
Soil bulk density is a dynamic property that varies with the soil structural conditions. The relationships between some soil physical and chemical properties such as, clay content (C), silt content (Si), sand content (S), very fine sand content (Vfs ...
Tayfun Aşkin, Natullah Özdemir
doaj  

Thin Layer Measurement of Soil Bulk Density [PDF]

Journal of Range Management, 1993
Measurement of soil bulk densities is difficult if there are gravel, stones, or other materials present in the soil profile. A technique is offered for estimating the soil bulk density in thin layers (1.0 cm) in loose, nonuniform soils with low moisture levels. The technique consists of the removal of the soil in shallow layers.
Gary W. Frasier, Jennifer Keiser
openaire   +1 more source

Bulk Densities of Brazilian Amazon Soils Related to Other Soil Properties

Soil Science Society of America Journal, 1998
Abstract The results of this study provide the first baseline for predicting D b from soil properties for soils across the Amazon basin. Bulk density values are needed to convert nutrient content and organic carbon (OC) content to weight of nutrient and ...
Bernoux, M., Arrouays, Dominique, Cerri, C., Volkoff, B., Jolivet, C.   +4 more
openaire   +3 more sources

PEDO-TRANSFER FUNCTIONS FOR ESTIMATING SOIL BULK DENSITY IN CENTRAL AMAZONIA

Revista Brasileira de Ciência do Solo, 2015
Under field conditions in the Amazon forest, soil bulk density is difficult to measure. Rigorous methodological criteria must be applied to obtain reliable inventories of C stocks and soil nutrients, making this process expensive and sometimes unfeasible.
Henrique Seixas Barros, Philip Martin Fearnside   +1 more
doaj   +1 more source