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- Distribution and relationship of phosphorus content in flue-cured tobacco leaf and phosphorus content in soil in Hunan tobacco-growing alias 湖南烟区烤烟磷含量与土壤磷素的分布特点及关系分析
- phosphorus content in soil 土壤磷素盈余
- The available nitrogen and phosphorus contents in root rhizosphere were greater than those in bulk soil, while its content of the available potassium was lower. 根际碱解氮和有效磷含量高于非根际土壤，其速效钾含量却低于非根际土壤。
- Phosphorus contents in soil 土壤磷含量
- The results showed that the established model of end phosphorus content in BOF process has good prediction ability. 研究表明,建立的转炉终点磷含量模型有很好的预测能力。
- Impacts of different phosphorus content in detergent on the growth of Dugesia Japonica are studied. 观察了含磷量不同的洗衣粉溶液对日本三角涡虫生长的影响。
- A new oscillographic titration method for the determination of phosphorus content in laundry powder is described. 报告了洗衣粉中磷测定的示波滴定新方法。
- An effective way to reduce phosphorus content in electroless nickel deposits is to use appropriate complexing agents. 降低化学镀镍镀层磷含量的主要方法是选择合适的络合剂。
- Triethanolamine was considered as a desirable complexing agent to reduce phosphorus content in electroless nickel deposits applied on polyurethane foam substrate. 对于以聚氨酯海绵为基体的化学镀镍，研究认为，三乙醇胺是较好的选择。
- The uncertainty of chlorine content in soil samples determined by X-ray fluorescence spectrometry has been evaluated. 摘要用实例对X射线荧光光谱法测定土壤样品中氯的不确定度进行了评定。
- The average phosphorus contents in different organs are grain>glume>leaf>stem. 不同器官的平均含磷量均为籽粒＞颖壳＞叶片＞茎秆。
- When the absolute moisture content in soil dropped to 6.7%,the activity of CAT first reached the maximum. 结果表明;随干旱程度加重;扁桃抗氧化酶活性逐渐增强;当土壤绝对含水量降至6.;7%25时;过氧化氢酶(CAT)活性首先达高峰;
- As well as, the content of MDA would increase with drought,and reached the top,when the absolute water content in soil dropped to 2.1%. 丙二醛(MDA)含量随干旱加重而逐渐增加;当土壤绝对含水量降至2.;1%25时其含量最高。
- Heavy rain or saturating rain would lead to drastic decrease of mercury content in soil gas or even to the disappearance of anomalies. 大雨或透雨过后，壤中气汞含量急剧降低，甚至使异常消失；
- This paper trains and predicts the data of the end phosphorus content in BOF process by using 3 kinds of BF network optimized algorithms and regulating the parameters of the network. 本文利用3种BP网络优化算法,通过调整网络参数对转炉终点钢水磷含量进行训练和预测。
- Vertical distribution of trace element contents in soil in Tianjin Area. 天津地区土壤中微量元素含量的纵向分异。
- The influence of crystallization temperature, reaction time, stirring intensity,and crystal modifier on co-crystallized phosphorus content in phosphogypsum was studied emphatically. 研究了结晶反应温度、时间、搅拌速度、表面活性剂对磷石膏中共晶磷含量的影响。
- Title： Variation of inorganic phosphorus contents in seeds of rapeseed (Brassica napus L. 关键词：甘蓝型油菜;种子;无机磷;植酸磷
- The logarithm of bioaccumulation factors(BCF) linearly correlates with the logarithm of arsenic content in soil to som... 蚯蚓能用作土壤中洛克沙胂污染的指示生物;而且可以用蚯蚓生物除污技术来减少或控制洛克沙胂的环境污染.
- Huang S M,Bao D J.Effect of N fertilizer application on nitrate content in soil and underground water[J].Agri-Environ.Prot.,2000,19(4):228-229. [19]黄绍敏;宝德俊.;施氮对潮土地下水硝态氮含量的影响[J]
