Results 21 to 30 of about 52,986 (309)

INFLUENCE OF ORGANIC AND MINERAL FERTILIZERS ON SOME SOIL PHYSICAL PROPERTIES AND ZEA MAYS PRODUCTIVITY [PDF]

Journal of Soil Sciences and Agricultural Engineering, 2011
A field experiment was conducted on a clay soil using Zea mays (single cross 10) during 2009 season at Agricultural Experimental Station Fac of. Agric, Mansoura Univ., to study the influence of combined use of mineral fertilizers (urea) and organic ...
K. F. Fouda, T. M. El-Zehery, H. A. Meshref, S. A. Hammad   +3 more
doaj   +1 more source

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

Saturated Soil Hydraulic Conductivity is not Constant But Varies with the Time It is Measured

Guan'gai paishui xuebao, 2021
【Background and objective】 Saturated soil hydraulic conductivity (KS) is an important parameter characterizing the ability of soil to conduct water. It is often assumed to depend on soil structure and is hence constant for a given soil.
WANG Xiangxiang, CHENG Zhilong, SU Guangchen, YANG Ying   +3 more
doaj   +1 more source

Deriving regional pedotransfer functions to estimate soil bulk density in Austria

Die Bodenkultur, 2021
Soil bulk density is a required variable for quantifying stocks of elements in soils and is therefore instrumental for the evaluation of land-use related climate change mitigation measures. Our motivation was to derive a set of pedotransfer functions for
Foldal Cecilie, Jandl Robert, Bohner Andreas, Berger Ambros   +3 more
doaj   +1 more source

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

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

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

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