论文部分内容阅读
THE CALIBRATION METHOD OF GAS CHROMATOGRAPHY-TANDEM TRIPLE QUADRUPOLE MASS SPECTROMETER
【机 构】
:
Chemical Metrology & Analytical Science Division,National Institute of Metrology,Beijing100029,China
【出 处】
:
第十六届北京分析测试学术报告会
【发表日期】
:
2015年期
其他文献
It is well acknowledged that nitrous oxide(N2O)is a major greenhouse gas(GHG),which is mostly derived from agriculture.About 58%of GHG emissions from agricu
会议
Increasing demand for biofuels sources has motivated the need for knowledge about diverse crops or rotated crops for ethanol yield and nutrient removal,a ve
Conventional soil tillage include practices to enhance plant nutrient acquisition by modifying water infiltration,aeration,temperature regimes and organic m
会议
Visual evaluation of soil structure(VESS)has being used to compare soil with contrasting textures,tillage,crop rotations,agricultural traffic,land use and g
会议
Temperature of zero and reduced tilled clay soils before spring sowing in Northern European boreal c
Conservation tillage has taken its position among other tillage options in boreal conditions during the last two decades.The reduction of tillage intensity
会议
Tillage practices play an important role in the sustainable agriculture system.Conservative tillage practice can help to reduce soil erosion,increase soil f
会议
Soil Structure Dynamics:Evidence from Bulk Density and Water Retention Characteristics during Wettin
The structure and pore related functions of a tilled soil layer vary dynamically under the impact of wetting and drying(WD)cycles.Our objective in this stud
会议
Utopus:a novel autonomous robot that uses renewable energy to cultivate soil without causing compact
Cultivation,seeding and weed control are fundamental to arable production.In the developed world these activities use increasingly large machinery with tyre
会议
会议
Soil is one of the most critical life-supporting compartments of the Biosphere.It provides numerous ecosystem services such as a habitat for biodiversity,wa
会议