搜索结果: 1-15 共查到“农学 Water content”相关记录27条 . 查询时间(0.131 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...
Comparison of two sensors ECH2O EC-5 and SM200 for measuring soil water content
bulk density CaCO3 ECH20 soil moisture sensor EC-5 fraction of sand particles SM200 sensor soil and soil water salinity soils of the Czech Republic soil water content
2015/3/3
The goal of this study was calibration of the ECH20 soil moisture sensor EC-5 and the sensor SM200 for selected soils of the Czech Republic. Based on the soil maps of the Czech Republic and various cl...
Robust and cost-effective system for measuring and logging of data on soil water content and soil temperature profile
Data-Logger Soil Temperature Soil Water Content Microcontrollers Sensors
2013/3/4
The paper describes the system for measuring and logging of data on soil water content and soil temperature profile. The system was tested in a field and shows great potential for performing continuou...
Response of tomato (Solanum lycopersicum L.) to lead toxicity: Growth, element uptake, chlorophyll and water content
Lead (Pb) toxicity growth nutrient chlorophyl water status
2011/1/10
The effect of lead on accumulation of Pb; mineral composition in roots, shoots and leafs; growth-development; chlorophyll and water content of tomato (Solanum lycopersicum L. cv. Falcon) seedlings was...
Spatial and Temporal Distribution of Soil Water Content in Fields under Different Vegetation Conditions Based on TDR Measurements
electromagnetic wave Andisol multiple probes with different lengths
2009/9/10
TDR (Time-domain reflectometry) is an advanced method for monitoring the water content in fields.TDR measurements can provide accurate information about vegetation effects on both spatial and temporal...
Relationship between Leaf Water Content and Temporary Increase in the Net Photosynthetic Rate Caused by Leaf Excision from Leaf Sheath in the Rice Plant
β-Ray transmittance Intercellular CO2 concentration Leaf excision Leaf water content Photosynthesis Rice
2009/7/29
The photosynthetic rate and the water content in the rice leaf of potted plant, cv. Yamabiko, Ochikara and Araki, were measured simultaneously by the assimilation chamber method and by β-ray transmitt...
Wheat Cultivar Differences in Photosynthetic Response to Low Soil Water Potentials : II. Maintenance of leaf turgor and relative water content
Cultivar difference Osmotic adjustment Photosynthesis Triticum aestivum L Turgor potential Water stress Wheat
2009/7/27
The capacity for maintenance of turgor potential (ΨP) and relative water content (ξ) were examined in 16 wheat cultivars from different habitats with different agronomic drought resistance and differe...
Midday Drop of Leaf Water Content Related to Drought Tolerance in Snap Bean (Phaseolus vulgaris L.)
Drought Leaf water content Snap bean
2009/7/24
Midday Drop of Leaf Water Content Related to Drought Tolerance in Snap Bean (Phaseolus vulgaris L.).
Change in Wheat Quality with Ripening:I. Grain dry weight and grain water content
Grain dry weight Grain water content Grain water percentage Mean air temperatuare Time of maximum grain dry matter accumulation
2009/7/22
To obtain basic data for the change in wheat grain quality with ripening in the Tokachi district of Hokkaido, Japan, we examined the changes in dry weight, water content and water percentage in devel...
Estimation of Water Content in the Leaves of Fruit Trees Using Infra-red Images
grapevine infra-red camera satsuma mandarin water stress
2009/7/9
A method was developed to evaluate water contents of fruit trees using infra-red photography. The irrigation of potted Satsuma mandarin trees and grapevines was suppressed to induce water stress. Duri...
Estimation of the Time of Physiological Maturity and Water Content of Kernel in Wheat
Developmental model Kernel development Physiological maturity Temperature
2009/7/8
The water content and dry-matter weight of kernel were measured in two cultivars ‘Norin61’ and ‘Shirogane-komugi’ grown at different temperatures to develop a method of estimating the maturation stag...
Volumetric Water Content in the Branches and Trunks of Satsuma Mandarin Measured by Time Domain Reflectometry
high quality fruit production mulch water management
2009/7/8
The volumetric water content (VWC) in the branches and trunks of satsuma mandarin (Citrus unshiu Marcow.) was measured using a stainless nail a sensor probe and a portable time domain reflectometry (T...
Relationship of Growth Variability, with Ground Level and Soil Water Content in a Large Paddy Field in Inashiki-city, Ibaraki-prefecture in 2007—Wet Injury of Wheat
Triticum spp Excess-moisture injury Wet endurance Upland field converted from paddy field
2009/7/7
There was a heavy rain fall on Nov. 19-20 and Dec. 26-27, 2006 in Ibaraki-prefecture. We examined wheat growth and soil conditions in a large paddy field in Inashiki-city, Ibaraki-prefecture, where p...
Effects of Inter-Row Strip Tillage on Soil Water Content, the Growth and Yield of Soybean (Glycine max L.) in Upland Field Converted from Paddy Field
Inter-row strip tillage Soil moisture Soybean (Glycine max L.) Tillage Upland field converted from paddy field Yield
2009/7/7
We adopted the 'inter-row strip tillage' (IST), in which furrows between rows are tilled and seed is sown on the ridge which is covered with the tilled furrow soil, to the soybean cultivation in upl...