Author: M. Van der WesthuizenPublisher:
ISBN:
Category :
Languages : en
Pages :
Book Description
The Measurement of Moisture Content and Dry Bulk-density of the Top Layer of Agricultural Soils, with Minimum Calibration, Using a Gamma-ray Attenuation Method
Author: M. Van der WesthuizenThe Measurement of Moisture Content and Dry Bulk-density of the Top Layer of Agricultural Soils, with Minimum Calibration, Using a Gamma-ray Attenuation Methos
Author: M. Van der WesthuizenPublisher:
ISBN:
Category : Soil moisture
Languages : en
Pages : 22
Book Description
Agrochemophysica
Author: Publisher:
ISBN:
Category : Agricultural chemistry
Languages : en
Pages : 120
Book Description
Determining Water Content and Bulk Density of Soil by Gamma Ray Attenuation Methods
Author: E. S. B. FerrazPublisher:
ISBN:
Category : Soil moisture
Languages : en
Pages : 68
Book Description
Density and Moisture Content Measurements by Nuclear Methods
Author: Robin P. GardnerPublisher:
ISBN:
Category : Radioactive gages
Languages : en
Pages : 56
Book Description
Sources of error that have been identified on the gamma-ray soil density gauge are: (1) sensitivity to local density variations, especially at the soil surface, (2) sensitivity to soil composition, and (3) inaccurate calibration techniques. An attempt was made to solve these problems by developing for each gauge calibration models that enable stable and homogenous non-soil standards to be used for calibration. Calibration standards and calibration models for each gauge were found and tested. In the process of developing and testing the new nuclear gauge calibration model, the dual-gauge principal of compensating these gauges for variations in soil composition was discovered. The air-gap method of using this principal is explained and was optimized by using the calibration model developed in the current study.
Soil Bulk Density and Water Content Measurements by Gamma-ray Attenuation Techniques
Author: Lance T. SantoPublisher:
ISBN:
Category : Gamma rays
Languages : en
Pages : 16
Book Description
The Measurement of Soil Moisture and Density by Neutron and Gamma-ray Scattering
Author: Donald Jenks BelcherPublisher:
ISBN:
Category : Gamma rays
Languages : en
Pages : 28
Book Description
ADAS Advisory Paper
Author: Great Britain. Agricultural Development and Advisory ServicePublisher:
ISBN:
Category : Agriculture
Languages : en
Pages : 284
Book Description
Author: 
Author: