Results 21 to 30 of about 764,844 (311)

Slope Gradient and Vegetation Cover Effects on The Runoff and Sediment Yield in Hillslope Agriculture

open access: yesTurkish Journal of Agriculture: Food Science and Technology, 2015
Cultivation of field crops is a challenge and risky business in sloping areas. A study was conducted as a demonstration model for the sloppy lands of Fateh Jang, Pakistan.
Obaid ur Rehman   +4 more
doaj   +1 more source

Effect of Particle Size on Droplet Infiltration into Hydrophobic Porous Media As a Model of Water Repellent Soil [PDF]

open access: yes, 2011
The wettability of soil is of great importance for plants and soil biota, and in determining the risk for preferential flow, surface runoff, flooding,and soil erosion. The molarity of ethanol droplet (MED) test is widely used for quantifying the severity
Adamson A. W.   +24 more
core   +1 more source

Study of the Permeability of Foam Conditioned Soils with Laboratory Tests [PDF]

open access: yes, 2010
EPB tunneling requires that the excavated soil has a plastic and pulpy behavior to be able to apply a stabilizing pressure to the face, but it should also be impervious to counteract filtration forces that could develop ahead of the face.
Borio L., Peila D.
core   +1 more source

Soil Fertility Management for Better Crop Production

open access: yesAgronomy, 2020
Increasing crop productivity per unit of land area to meet future food and fiber demand increases both soil nutrient removal and the importance of replenishing soil fertility through efficient nutrient management practices.
John Havlin, Ron Heiniger
doaj   +1 more source

Effect of X-Ray Tube Configuration on Measurement of Key Soil Fertility Attributes with XRF

open access: yesRemote Sensing, 2020
The successful use of energy-dispersive X-ray fluorescence (ED-XRF) sensors for soil analysis requires the selection of an optimal procedure of data acquisition and a simple modelling approach.
Tiago Rodrigues Tavares   +6 more
doaj   +1 more source

Ultrasonic, molecular and mechanical testing diagnostics in natural fibre reinforced, polymer-stabilised earth blocks [PDF]

open access: yes, 2013
The aim of this research study was to evaluate the influence of utilising natural polymers as a form of soil stabilization, in order to assess their potential for use in building applications.
Bradley, Fiona   +2 more
core   +4 more sources

Investigation into the effect of uncertainty of CPT-based soil type estimation on the accuracy of CPT-based pile bearing capacity analysis [PDF]

open access: yes, 2016
Cone Penetration Test (CPT or CPTu) is commonly used for estimating soil types and also for the geotechnical design of pile foundation. However, the level of agreement between the CPT-based soil types and the traditional identification of soil types ...
Bellis, Angela, Hamza, Omar
core   +2 more sources

Phosphorus Fractions in Temperate Grassland Soils and Their Interactions with Agronomic P Tests

open access: yesAgronomy, 2022
Phosphorus (P) is a major nutrient for plant growth and animal health, and its availability in soil is influenced by agronomic management and soil properties. This study examined the distribution of labile and non-labile soil P fractions in grassland and
Jessica Graça   +3 more
doaj   +1 more source

Pyramidal Structures on Yttria‐Stabilized Zirconia after High Temperature Exposure at 1500°C: New Features on an Old Material

open access: yesAdvanced Engineering Materials, EarlyView.
New features on yttria‐stabilized zirconia after exposure at 1500°C: Newly discovered pyramidal structures on an old material. After exposure at 1550°C on the cross section of YSZ new features, namely pyramidal structures are discovered. These structures grow with time, increase in numbers, appear as singularities, are often arranged in strings, and ...
Doris Sebold   +2 more
wiley   +1 more source

Plant growth and phosphorus uptake of coffee seedlings through mycorrhizal inoculation

open access: yesAgronomía Colombiana, 2022
Soil phosphorus (P) availability is a limiting factor for coffee seedling growth. Usually, large amounts of P fertilizers are required, generating nutritional imbalance, increasing production costs, and raising environmental concerns in water pollution.
Hernán González-Osorio   +3 more
doaj   +1 more source

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