Analysis of combining ability and heritability of nicotine content,total nitrogen content and nitrogen/nicotine ratio in burley tobacco;
白肋烟烟碱、总氮含量及氮碱比的配合力与遗传力分析
Through analysis on chemistry properties of various nitrogen forms in compound fertilizers,some problems existing in determination of total nitrogen content in compound fertilizer are solved,and the qualitative analysis of nitrogen form and its key points is also presented for a reference in determination of compound fertilizer.
通过对复混肥料中不同形态氮的化学性质的分析,解答了复混肥料总氮含量检验中的常见问题。
Known and unknown total nitrogen in water were measured by ionic chromatograph and GBl 1894-89 ultraviolet spectrophotometer.
采用紫外分光光度法和离子色谱法分别测定已知和未知总氮含量的水样。
And we also give some advice on controlling and reducing the total quantity of TN, which was input into the groundwater.
并针对控制及减少输入到地下水中总氮的总量提出了建议。
The total absorption of nitrogen increased with the amount of nitrogen topdressing, but the proportion of absorption nitrogen during the blooming period to total nitrogen were downtrend.
棉花总吸氮量随著追氮量的增加而增加，但花铃期吸氮量占总吸氮量的比例呈下降趋势。
Two Alternative Methods for Measuring Total Nitrogen of Pond Soils
二种池塘底泥总氮含量的简易测定法
Relationship between Total Nitrogen,Total Alkaloid,Ratio of Total Nitrogen to Total Alkaloid and Sensory Quality in Flue-cured Tobacco Leaves of China
我国主产烟区烤烟总氮、总植物碱、氮碱比与感官质量的关系分析
Genetic Analysis for Soluble Sugar Content, Total Nitrogen Content and Ratio of Sugar to Nitrogen of Rice(Oryza Sativa.L.) Across Environments;
不同环境下稻米可溶性糖含量、总氮含量和糖氮比的遗传研究
soil quality - determination of total nitrogen - modified method
土壤质量-总含氮量的测定法-修改的hjeldahl法
So total protein content can be determined by multiplying nitrogen by the factor 6.25.
蛋白质的总含量即可由含氮量乘以常数6．25算出。
Distribution and Relationship of Nitrogen Content in Flue-cured Tobacco Leaf and Soil in Sanmenxia Tobacco Districts
三门峡烟区烤烟总氮与土壤氮素含量的分布特点及关系分析
A Discussion on A Method using Formaldehyde To Determine Nitrogen Content Of The Ammonium Salt;
甲醛法测定铵盐中总氮含量的有关问题讨论
Cost model for reducing total COD and ammonia nitrogen loads in wastewater treatment plants
污水处理厂COD和氨氮总量削减的成本模型
Spatiotemporal distribution of total nitrogen and total phosphorus in sediments of Xiangxi Bay,Three Gorges Reservoir
三峡水库香溪河库湾底泥中总氮、总磷含量的时空分布
Real-time Analysis of Soil Total N and P with Near Infrared Reflectance Spectroscopy
土壤中总氮与总磷含量的近红外光谱实时检测方法
Effects of nitrogen sources on the growth,contents of total lipids and total hydrocarbons of Botryococcus braunii
不同氮源对布朗葡萄藻生长、总脂和总烃含量的影响
Correlations Between Reflectance Spectra and Contents of TN and TP in Huangbizhuang Reservoir,Hebei Province
黄壁庄水库总氮、总磷含量与反射光谱特征的关系
determination of nitrate nitrogen,ammonium nitrogen and total soluble nitrogen in air-dry soils using calcium chloride solution as extractant
使用氯化钙溶液作萃取剂测定干空气中的硝态氮、氮铵和总溶解氮含量
Relationship of Nicotine and Total Nitrogen Contents with Neutral Aroma Components in Flue-Cured Tobacco in Central Area of Henan Province
豫中烤烟烟碱和总氮含量与中性香气成分含量的关系
determination of nitrite nitrogen and nitrate nitrogen and the sum of both by flow analysis(cfa and fia) and spectrometric detection
用流量分析法和光谱检出法测定亚硝酸氮和硝酸氮及两者的总含量
Nitrogen measurement in infantile zhili syrup by Kjeldah method
凯氏定氮法测定小儿智力糖浆中总氮含量