Soil
- In situ soil physical research
- Soil and sediment sampling
- Soil drilling and sampling
- Soil physical research in the laboratory
- Various
Soil physical research in the laboratory
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Aggregate stability
The aggregate stability of a soil is the resistance of soil structure against mechanical or physico-chemical destructive forces. Soil structure is one of the main factors controlling plant growth by its influence on root penetration, soil temperature and gas diffusion, water transport and seedling emergence and therefore it is an important soil characteristic for farmers. 08.13 Wet sieving ...
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Air pycnometer
Growth is hampered if there is not enough water and air, and the soil is less suitable for agriculture if it is too porous: the strength of ground is reduced. It is important, therefore, to know the ratio between the amount of solid mass, water and air in a given volume. The air pycnometer has been developed to determine the volume and the density of the solid components (for instance soil). ...
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Calcimeter
The carbonate content of the soil is a sure indication of the fertility of the soil. To be able to determine the carbonate content of the soil Eijkelkamp (together with Dutch research institutes) developed a calcimeter that meets the standard NEN-ISO 10693. The calcimeter works in accordance with the method of Scheibler. The Scheibler method involves a determination of the carbonate content ...
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Particle size distribution - Granular composition test & mini hand sieves set
The particle size distribution is one of the most important characteristics of the soil. Agricultural, as well as soil scientific properties, are greatly determined by the texture of a soil. The particle size distribution has an effect on many properties of the soil such as for instance the ease of tillage, the capillary conductivity of a soil, the available moisture, the permeability of a ...
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Particle size distribution - hydrometer kit
To obtain an accurate determination of the particle size distribution of the smallest fractions it is possible to apply the hydrometer method. In this method the sample is cleaned from organic matter after which it is dried and weighed. Next it is suspended in water and sieved. The solution that passes through the sieve is transferred to a measuring cylinder with water.Hydrometer readings ...
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pF - determination (sandbox method)
The determination of the moisture characteristic (pF-curve) is essential when researching the quantity of water available in the soil for plants and trees. Depending on the desired measuring range underpressure (the so called sandboxes) or overpressure (membrane apparatus) is used. For the determination of the moisture characteristic using the sandbox method undisturbed samples are ...
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Pipette equipment
The particle-size distribution is one of the most important physical qualities of a soil. The division of soils (soil classification) is primarily based on particle-size distribution. When accurately determining the particle size in samples, in addition to the determination using sieves, other methods will need to be applied. A simple method for the determination of the particle size is the ...
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Soil air permeability test
The soil pore system is dependent on the quantity, shape and continuity of pores. It can be described by the water and air permeability of the soil. Permeability to fluids is quantified by hydraulic conductivity or air permeability, respectively. Eijkelkamp Agrisearch Equipment supplies a comprehensive air permeameter set to measure air permeability, soil moisture tension and volume percentage ...
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Soil water permeability test
The planning and execution of hydrological- and soil technical projects (for instance drainage and irrigation) is almost always preceded by geo-hydrologic research. The water and air permeability of the soil to a large extend determines how efficient an irrigation- or drainage system functions. Determining the saturated water permeability (horizontal as well as vertical) can be executed in the ...
