脲氮 的英文怎麼說
中文拼音 [dàn]-
Study on the determination of amide nitrogen and total nitrogen in urea nitrate
硝酸脲中酰胺態氮及總氮含量測定的研究Examples of such nitrogenous compounds are imidurazole, ammeline, ammelide.
這類含氮化合物的例子是咪脲唑，三聚氰酸三酰胺，三聚氰酸一酰胺。Company in china engaged in the development and production of poultry feed additives, nutritional supplements, and substituted aromatic chemical intermediates
-是生產電石，石灰氮，雙氰胺，碳酸鍶，硫脲，增炭劑等產品的企業。The results showed that the correlations of organic matter, n, p with urease / protease were positively significant, the correlations between nutrient content and hydrogen peroxidase / peroxydase was insignificant, but the nutrient content and poiyphenol oxidase was found inversely correlated
結果表明：有機質、氮、磷與土壤脲酶、蛋白酶有一定的正相關，與過氧化氫酶、過氧化物酶有不明顯的正相關，與多酚氧化酶則呈負相關。Xanthydrol fertilizers - chemical analysis - determination of nitrogen - method for determination of urea nitrogen content gravimetric method using xanthydrol
肥料.第4部分:化學分析.第1節:氮含量測定.第5小節:脲氮含量測定方法Urease inhibitors allow producers the opportunity to surface apply n at later stages of plant growth closer to time of most rapid plant uptake
脲酶抑制劑為農業生產者在接近植物吸收養分最快的生長後期表施氮肥提供了條件。Soil microbial biomass carbon, microbial biomass nitrogen, soil basal respiration and metabolic quotient all showed a decreasing trend under more than 15 mg. kg - 1 cadmium or more than 200 mg. kg - 1 lead, respectively. soil dehydrogenase, urease and acid phosphotase activities have a significant decrease, and the activities of soil catalase and invertase taking sencond place, while soil protease activities showed stable state
隨重金屬濃度增加，各指標下降幅度各有差別，其中微生物生物量碳、微生物生物量氮以及基礎呼吸和微生物代謝商隨重金屬濃度增加而明顯下降；土壤脫氫酶、脲酶、酸性磷酸酶活性的下降幅度較為明顯，過氧化氫酶、蔗糖酶活性次之，蛋白酶活性較為穩定。Produces zirconium oxychloride, zirconium oxide and other zirconium series products
-生產電石石灰氮雙氰胺碳酸鍶硫脲增炭劑。The properties of n - p intumescent flame - retardant made from urea - phosphate liquor were tested in this paper, the flame retardancy and applied performance of wood treated by this flame - retardant were measured
摘要對用磷酸脲的結晶母液合成的氮磷膨高效脹型阻燃劑性能進行了研究，測定了經該阻燃劑處理后的木材的耐火性能和使用性能。It is apparent that the value of controlled - release nitrogen and urease inhibitors is most evident in situations where rapid incorporation is impossible or undesirable due to time constraints or selection of residue and soil conserving tillage systems
在時間緊迫、有殘體覆蓋和採用保護性的土壤耕作制度下，肥料與土壤不可能迅速混合或混合不理想，此時施用控釋氮肥和脲酶抑制劑的效果最明顯。According to its morphological characteristics and the ability of glucose fermentation, urease production, fast blue bb salt ( dbb ) experimental 1 was identified as a rhodotorula sp
根據形態學觀察和葡萄糖發酵實驗，脲酶實驗以及重氮基藍b實驗結果，結合《酵母菌的特徵與鑒定手冊》 ，確定y11為一株紅酵母（ rhodotorulasp ） 。The decrease of organic matter and the increase of alkali - hydrolyzable nitrogen of the hydrogen treatment were higher than the control, and urease activity, nitrogen fixation arnmonification had the same tendency, and amino acids had also changed. hi addition, comparing the control, ph of hydrogen treatment was increase and eh was decrease, and microbe mass was also too
與對照相比，氫處理培養有機質減少量小、堿解氮的增量高，脲酶活性、固氮能力、氨化作用都較強，並且不同種類的氨基酸也表現出各自相應的差異來。此外，土壤經氫處理后，土壤的ph上升， eh下降，土壤微生物生物量也呈減少趨勢。The changes of specific surface area before and after sintering were measured by nitrogen adsorption. the results show that the surface of sioi particles become coarser along with the remove of polymer template, but the particle size keep no change. the composite microspheres include more uf polymer under low ph value but turn into more looser under high ph value, so the result mesoporous sioi microspheres have big pore volume and average pore size
對脲醛sio _ 2復合微球進行熱處理后得到介孔二氧化硅微球，用示差掃描量熱（ dsc ）熱重（ tg ）分析研究了脲醛sio _ 2復合微球的脫水、脫醇及有機物炭化分解的過程；用氮氣吸附法分析了不同ph值、熱處理溫度對介孔二氧化硅微球的比表面積及孔結構的變化影響；用sem表徵了不同ph值下二氧化硅微球的形貌變化。分享友人