nitrate nitrogen 中文意思是什麼

nitrate nitrogen 解釋
硝酸態氮
  • nitrate : n. 1. 【化學】硝酸鹽；硝酸根；硝酸酯；硝化。 2. 硝酸鹽類化肥。 vt. 用硝酸處理，使硝化。
  • nitrogen : n 【化學】氮，氮氣。 nitrogen chloride 三氯化氮。 nitrogen cycle 氮循環。 nitrogen dioxide 二氧化...
  1. Study on nitrate - nitrogen removal and community analysis of denitrifying bacteria in downflow fixed - bed bioreactor

    下流式固定床反應器中反硝化細菌類群及其脫氮效率分析
  2. Fertilizer - determination of nitrate nitrogen content - nitron gravimetric method

    肥料中硝態氮含量的測定氮試劑重量法
  3. Fertilizers - chemical analysis - determination of nitrogen - nitron gravimetric method for determination of nitrate nitrogen

    肥料.第4部分:化學分析.第1節:氮含量測定.第1小節:硝酸鹽基氮硝酸氮重量測定法
  4. Some commercial laboratories use periodic nitrate nitrogen tests as guides.

    許多商業性的試驗室已應用定期的硝態氮分析作為指導。
  5. In many plants, including most tree crops, nitrate nitrogen does not usually occur in the leaves.

    在一些植物中，包括絕大多數的木本作物，硝態氮並非經常存在於葉片中。
  6. Determination of nitrate nitrogen in fertilizer by reduction of sodium thiosulphate instead of chromium power

    用硫代硫酸鈉代替鉻粉還原測定肥料中硝酸態氮
  7. Seasonal dynamic variations in nitrate nitrogen in marsh soils from phragmites wetlands in xianghai national natural reserve

    向海蘆葦沼澤濕地土壤硝態氮含量的季節動態變化
  8. Water quality - determination of nitrate - nitrogen gas - phase molecular absorption spectrometry

    水質.硝酸鹽氮的測定.氣相分子吸收光譜法
  9. Long - term changes in nitrate nitrogen in marine waters of hong kong, 1986 - 2005

    一九八六至二零零五年香港海域硝酸鹽氮含量的長期變化pdf
  10. This course demonstrate the important sorts of wastewater analysis, it includes chemical oxygen demand ( cod ), biochemical oxygen demand ( bod ), suspended solids ( ss ), volatile suspended solids ( vss ), ammonia nitrogen, organic nitrogen, nitrite nitrogen, nitrate nitrogen, orthophosphate, total phosphate, sulfate, and sulfide

    本課程包含污水分析重要項目的原理解說及實驗分析，分析項目包括：化學需氧量、生化需氧量、懸浮固體物、揮發性懸浮固體物、氨氮、有機氮、亞硝酸鹽氮、硝酸鹽氮、正磷酸鹽、總磷、硫酸鹽及硫化物。
  11. The potential for river eutrophication was originally measured by seven nutrient parameters : ammonia - nitrogen, nitrite - nitrogen, nitrate - nitrogen, total kjeldahl nitrogen, ortho - phosphate, total phosphorus, and silica. more recently, in 2001, two further parameters relating to eutrophication were added. these are the plant pigment parameters of chlorophyll - a and pheo - pigment

    多年來我們根據七項營養參數水平來評估河水富營養化的可能性：氨氮亞硝酸鹽氮硝酸鹽氮總凱氏氮正磷酸鹽總磷量及硅，於2001年我們增加了兩項關于富營養化的植物色素新參數：葉綠素- a及葉綠素分子色素。
  12. Determination of nitrate nitrogen in forest soil

    森林土壤硝態氮的測定
  13. Percent nitrate nitrogen, ammonium nitrogen and total phosphor was not a significantly variable at the different depths. 2 ) vegetation type results in significant difference in nitrate removal. lolium perenne l is most effective on reducing nitrate nitrogen concentration, accounting to 90 %. for total phosphor, natural vegetation is most effective, reaching 61. 01 %

    2 ）不同植被緩沖帶對銨氮、總磷、硝氮、總氮的去除效果不同，牧傑對氮鹽的去除效果最強，特別是對硝氮的吸收達到90 ，對總磷吸收能力在總體上弱於氮元素的吸收能力，在自然植被處達到最高，為61 . 01 。
  14. Soil quality - determination of nitrate nitrogen, ammonium nitrogen and total soluble nitrogen in air - dry soils using calcium chloride solution as extractant iso 14255 : 1998

    土壤質量.使用氯化鈣溶液作萃取劑測定干空氣土壤中的
  15. Comparative test on measuring nitrogen content in nitrate nitrogen by reduction

    還原法測定肥料中硝酸態氮含量的比較試驗
  16. Wells are installed at two well depths per well nest, respectively 1m and 0. 7m. samples are analyzed for nitrate nitrogen, ammonium nitrogen, total nitrogen, and total phosphor to compare the effect of vegetation type, different field slope and different season. main research results and conclusion of the study are as follows : 1 ) percent total nitrogen is higher in the deep wells 1m than the wells 0. 7m, by 11. 43 %

    以水樣中銨氮、硝氮、總氮、總磷為監測指標，比較了不同深度、不同植被類型、不同季節、不同坡度、不同濃度營養鹽沖擊下，緩沖帶對氮磷等營養鹽的消除效果，試驗結果如下： 1 ）與0 . 7m相比，樣點1m深處，緩沖帶對總氮的去除效率要高些，二者相差11 . 43 ，而緩沖帶對銨氮、總磷、硝氮的去除效果，不同深度，消除率比較接近。
  17. 4. soil n2o discharge flux responsible for the different treatments were affected by the different soil factors in the winter wheat growing stages. under no planting conditions, the moisture regime in the 0 to 5cm soil layer mostly made the soil n2o discharge flux adding in the mulch treatment, and the content of nitrate nitrogen in 5 to 10cm soil layer in the no mulch treatment

    4在冬小麥生育期內，影響不同處理土壤中n _ 2o排放通量的主要土壤因子為：無種植情況下，覆膜所導致的膜下（ 0 - 5cm ）土壤水分積累是引起土壤中n _ 2o排放通量增加的關鍵；無膜時較淺層土壤（ 5 - 10cm ）中no _ 3 ~ - - n濃度對土壤中n _ 2o的排放至關重要。
  18. However, under planting conditions, the content of nitrate nitrogen in 10 to 20cm soil layer and the ammonium nitrogen content in 5 to 10cm soil layer, the organic carbon content in 0 to 5cm soil layer were the most critical factors in mulch and no mulch treatment, respectively. 5

    對覆膜種小麥處理， 10 - 20cm土層土壤的硝態氮含量對土壤中n _ 2o排放通量的影響最大；對無膜種小麥處理， 5 - 10cm土層土壤的nh _ 4 ~ + - n及0 - 5cm土層土壤中的有機質含量決定了土壤中n _ 2o的排放通量。
  19. Plugcareplus is 99 % nitrate nitrogen based making it safe to use in colder conditions. a second benefit of nitrate nitrogen is shorter, toned growth

    穴盤專用（添加）肥料其99 %為硝態氮，因此在寒冷的氣候條件下也可安全使用。第二個好處就是硝態氮可使植株矮小且強壯。
  20. Water quality - determination of nitrite nitrogen and nitrate nitrogen and the sum of both by flow analysis cfa and fia and spectrometric detection

    水質.用流量分析法cfa and fia和光譜檢測法測定亞硝酸氮和硝酸氮及兩者總含量
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