搜索结果: 1-15 共查到“农学 conductivity”相关记录22条 . 查询时间(0.102 秒)
Evaluations of the effects of soil properties and electrical conductivity on the water content reflectometer calibration for landfill cover soils
soil electrical conductivity soil index properties time domain reflectometry volumetric water content WCR calibration
2017/4/6
This study presents soil-moisture calibrations using low-frequency (15–40 MHz) time domain reflectometry (TDR) probe, referred to as water content reflectometer (WCR), for measuring the volumetric wat...
Goat mastitis detection using daily records of milk conductivity: comparative results of different algorithms
intramammary infection gland measurements on-line
2015/7/2
Milk electrical conductivity is employed for mastitis detection in cows due to its automation, low cost, and infection detectability at early stage. Nevertheless, the number of publications about its ...
The impact of vegetation on hydraulic conductivity of sandy soil
sandy soil hydraulic conductivity vegetation water repellency
2015/1/30
The objective of this study was to assess the impact of vegetation on the hydraulic conductivity of sandy soil at the locality Mláky II at Sekule (southwest Slovakia). The measurements were taken on t...
Small Scale Spatial Variability of Apparent Electrical Conductivity within a Paddy Field
Spatial Variability Apparent Electrical Conductivity a Paddy Field
2009/12/2
This study aims to characterize the variability of soil ECa within a Malaysian paddy field with respect to the spatial and seasonal variability. The study was conducted at Block C, Sawah Sempadan, Sel...
Hydraulic Conductivity and Aquaporins of Cortical Cells in Gravitropically Bending Roots of Pisum sativum L.
Aquaporin Cell elongation Gravitropism Hydraulic conductivity Pisum sativum L. Water uptake
2009/7/27
We examined the differential elongation of gravitropically bending roots of Pisum sativum L. in terms of cell enlargement and water uptake by cells in the growing tissue. Hydraulic conductivity betwee...
Rapid Evaluation of Salty Wind Damage by the Amount of Salt Adhered to the Panicles of Rice Plant using Electric Conductivity(EC)
EC Panicle Rice plants Salt Salty wind damage Sodium chloride Working curve
2009/7/8
Decline of rice yield by salty wind is related to the amount of Na adhered to the rice panicles. Generally, the amount of Na (and/or Cl) in solution is determined by titration with silver nitrate,at...
Relationship between the looseness of soil and the electric conductivity
looseness L of soil electric conductivity subsoil chisel Veris 3100
2014/2/26
The present article reports on an experiment as part of the research in the frame of which I search after the relationship between the looseness L of soil characterising the operating quality of the c...
Clay Minerals, Ca/Mg Ratio and Fe-Al-Oxides in Relation to Structural Stability, Hydraulic Conductivity and Soil Erosion in Southeastern Turkey
Clay minerals structural stability hydraulic conductivity erosion calcium/magnesium ratio
2009/1/12
Studies of clay mineralogy and related chemical composition are rarely connected with implications for soil management in the field. However, this study attempts to manifest the practical utilization ...
Saturated Hydraulic Conductivity Variation in Cultivated and Virgin Soils
Saturated hydraulic conductivity Cultivated field Virgin field Soil compaction Bulk density
2009/1/12
Variation of saturated hydraulic conductivity (Ks) values of soils under diverse management practices may be needed to determine the required sample number, sample size, and chose suitable sample sche...
ELECTRIC CONDUCTIVITY OF LONGISSIMUS DORSI MUSCLE OF PIGS FED THE FODDER WITH ADDITION OF CONJUGATED LINOLEIC ACID
conjugated linoleic acid sunfl ower oil electric conductivity
2010/12/7
The aim of research was to investigate the impact of feeding pigs the fodder with addition of different level of conjugated linoleic acid on results of electric conductivity of Longissimus dorsi muscl...
Spatial characteristics of water conductivity in the surface level of Polish arable soils
water conductivity Polish arable soils
2008/12/2
The research presents spatial characteristics of water conductivity in the arable layer of Polish soils. It was found that the lowest water conductivity is 0.00087 cm day? and the highest ?5900 cm day...
An assessment of the soil-conditioning capacity of gums exuded by some trees in sierra leone: I. hydraulic conductivity measurements
soil-conditioning capacity tree gums saturated hydraulic conductivity
2008/11/26
PVA. The results are explained in terms of factors known to influence soil-polymer interactions.
Determining bulk electrical conductivity of soil from attenuation of electromagnetic pulse
soil electrical conductivity soil salinity time domain reflectometry
2008/11/21
Bulk electrical conductivity of soil, ecB determined using attenuation-based TDR measurements disagreed with reference data, ecB determined using the four-electrode reference method. To explain this d...
Error analysis of water conductivity coefficient measurement by instantaneous profiles method
water conductivity instantaneous profiles method error analysis
2008/11/19
The objective of the study is the calculation of the maximum absolute and relative measurement errors of the water conductivity coefficient determined by the instantaneous profiles method in the soil ...
Evaluation of methods for soil thermal conductivity calculations
de Vries model null-alignment and Laplace transform methods statistical-physical model
2008/11/19
This paper presents an evaluation of methods for the calculation of the thermal conductivity of soil on the basis of comparison of the thermal conductivity of sand, clay and peat, measured and calcula...