氮的總量 的英文怎麼說
中文拼音 [dàndezǒngliáng]
氮的總量
英文
total nitrogen-
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1. ecological effects of long - term organophasphate pesticides contamination on soil microflora the long - term effects of organophosphate pesticides contamination on soil microflora were investigated in the present study. little difference in total counts of bacteria, actinomycetes and fungi was observed between the contaminated and the non - contaminated soil. compared with the control there were a slight decrease in total counts of free - living nitrogen - fixer and denitrifying bacteria and a significant increase in those of ammonifying and ammonia - oxidizing and nitrifying _ bacteria in the methylparathion contaminated soil
一、甲基對硫磷長期污染對土壤微生物的生態學效應研究了有機磷農藥甲基對硫磷長期污染對土壤微生物的影響,實驗表明:土壤細菌、放線菌、真菌總的數量影響不大;自生固氮菌和反硝化細菌數量減少;氨化細菌、亞硝化細菌、硝化細菌的數量在污染土壤中卻有所增加;與對照土壤相比,污染土壤呼吸作用下降了29 . 93 ;氨化作用和硝化作用強度得到增強。The results showed that under copper and cadmium stresses sulfur and organic fertilizer fertilization increased the amounts of re - transported storage matter and nitrogen and the rate of transported storage matter and nitrogen in the leaves, leaf sheaths, glumes and spike stalks of wheat and the total amounts of re - transported storage matter and nitrogen and the total rates of transported storage matter and nitrogen in winter wheat before flowering compared with their own controls and the fertilizations with high sulfur and organic fertilizer rates did not presented a remarkable regular effect
結果表明,與各自對照相比,銅、鎘脅迫下低施硫和有機肥的處理增加了小麥葉片、莖鞘、穎殼穗軸等營養器官花前貯藏物質、氮素的再運轉量和運轉率以及營養器官花前貯藏物質、氮素的總再運轉量和總運轉率,高施硫和有機肥的銅、鎘處理則規律性不明顯。The dynamic change of nh4 +, no3 - and tn, under the situation which urea was applied in the high fertility paddy - field in yuhang of hangzhou city with a lysimeter which was designed and made by ourselves, was studied and analyzed in order to find the rules of the change in the water - body of surface and the leakage rule of nitrogen, to reduce the effect of nitrogen loss on the water pollution
藉助自行設計製作的稻田滲漏計,在杭州餘杭對高肥力稻田不同施用尿素氮肥情況下,稻田地表水和滲漏水中銨態氮、硝態氮和總氮(簡稱三氮)的動態變化規律進行了研究分析,以利於發現氮素在地表水體變化和淋失規律,盡量減少氮素淋失對地下水體所造成的影響。Taxonomic groups of zoobenthos were significantly correlated with biomass of submersed aquatic macrophytes, depths, secchi disk transparencies, total phosphorus and total nitrogen contents
底棲動物各個類群的現存量與水草生物量、水深、透明度、總磷和總氮的關系均較密切。So total protein content can be determined by multiplying nitrogen by the factor 6. 25
蛋白質的總含量即可由含氮量乘以常數6 25算出。By analyzing the result of survey, we can find that din and nh3 in sea area of deep water net - cage culturing is more higher than other sea area, but the pollution is smaller
摘要通過對箬跳、青山2個深水網箱養殖區的水質狀況的調查數據分析發現,養殖海區的無機氮和氨氮含量明顯升高,但是深水網箱養殖海區的總體污染狀況要比海區小。( 3 ) box model results indicate that the net flux of suface water, flowing into the south china sea, is about 8. 364x 106t / s and the net flux of water, which is under suface water, flows out of the south china sea at about 8. 229x 106t / s on annual average. the quantity of din, reactive phosphate or reactice silicate, which sinked into deep water in the form of particle matter, was about 78, 71 and 80 percent of total quantity of din, reactive phosphate and reactive silicate, which flowed into suface water in any ways. but in these particle matters, ahout2. 9 percent of particle nitrogen, 2. 0 percent of particle phosphor and 8. 2 percent of particle silicon sinked into sediment
( 3 )據「箱式模型」估算年度平均南海表層水通量約為8 . 364 10 ~ 6t s的凈輸出,表層之下水體約有有8 . 229 10 ~ 6t s的凈輸入;同時到達表層溶解態無機氮、活性磷酸鹽和活性硅酸鹽總量中約有78 、 71和80隨顆粒物質下沉到深海;其中未被分解而進入海底沉積物的顆粒態氮、磷和硅僅占由表層沉降深海顆粒態氮、磷和硅的2 . 9 、 2 . 0和8 . 2 。Transportation of total nitrogen is meanly effected by precipitation, irrigation, rate of fertilizer application of agriculture, permeability of soil and thickness of unsaturated zone et al
總氮的遷移主要受到大氣降水、灌溉水、農業施肥量、土壤的滲透性以及包氣帶厚度等因素的影響。In this study the main form of the nitrogen that diffused from sediment into overly water was ammonia, and the submerged plant decreased the diffusion fluxes of ammonia and nitrate at water - sediment interface
總之,水沉積物界面氨氮是沉積物向上覆水擴散的主要氮組分,沉水植物降低了氨氮和硝態氮的擴散通量。Surface active agents - determination of total base nitrogen - potentiometric titration
表面活性劑.堿性氮總量的測定.電位滴定法In the experiment, the first instar housefly larvae " metallothionein mrna expressing reach maximur. after induced by cd ( 2mm ) for 48 hours, then total rna was extracted with guanidinium isothiocyanate, and mrna was isolated by the polyattract mrna isolation systems surplied by promega company
試驗中採用2mmcd ~ 2對家蠅初孵幼蟲誘導48小時,使其體內金屬硫蛋白mrna表達達到高峰,在液氮中將其研磨成粉末后採用異硫氰酸胍法提取總rna ,再用promega公司提供的小量分離mrna試劑盒純化mrna 。Mongolica, soil acidity, humus component content, available k, total p, organic p, inorganic p, enzyme activity, and microbe amount of young stand olgensis of the second rotation of larix olgensis in non - rhizosphere soil also
不同發育階段影響林木生長量的主要養分因子是土壤有機質、速效鉀、水解氮以及土壤磷形態的全磷、有機磷、無機磷總量、有效磷、 ca一p和fe一p 。For nutritional substance exists in organic state with weak process of mineralization, the available elements are low, especially a lack of available nitrogen and phosphorus, the soil condition can not meet the needs of plant growing
。有機質含量高,其總氮總磷和鉀的儲量較豐富。由於礦化作用弱,營養物質缺乏,特別是有效氮和有效磷的缺乏難以滿足植物的生長。( 2 ) the losses of organic carbon, nitrogen, phosphorus and potassium were different in different farming systems. this losses of these elements according to respective farming systems was the following order : tradition > grass stripe > contour ditch > fallow > contour dam. compared with traditional fanning practices, others farming systems reduced losses of organic carbon, nitrogen, phosphorus and potassium and losses in contour dam, contour and fallow were much less than grass stripe and contour ditch
( 2 )不同農作措施徑流小區有機碳、氮、磷、鉀流失差異明顯,有機碳、氮、磷、鉀流失總量的順序為:順坡農作水平草帶水平溝休閑等高土埂,同順坡農作相比,其他農作措施均有減少有機碳、氮、磷、鉀流失的作用,以等高土埂、等高農作、休閑處理減少土壤有機碳、氮、磷、鉀流失的效果較好。And we also give some advice on controlling and reducing the total quantity of tn, which was input into the groundwater
並針對控制及減少輸入到地下水中總氮的總量提出了建議。Along several streams in alaska, we have calculated that the total amount of nitrogen and phosphorus provided by the carcasses equals or exceeds recommended concentrations of commercial fertilizer for similar plants in northern forests
沿著阿拉斯加的幾條溪邊,我們計算了鮭魚屍體所提供的氮、磷總量,等於甚至超過商業肥料對北部森林同種植物的建議濃度。Solid mineral fuels. determination of total carbon, hydrogen and nitrogen. instrumental methods
固體礦物燃料.碳氫和氮的總含量的測定.儀器分析法Solid mineral fuels - determination of total carbon, hydrogen and nitrogen - instrumental methods
固體礦物燃料.碳氫和氮的總含量的測定.儀器分析法As the increase of water added, the level of no3 - n in soils was decreased, in comparison with fif, it is concluded that dif significantly decreased the leaching loss of urea - n from soil, and increased the available nitrogen in soil
總之,與澆灌施肥相比,滴灌施肥顯著地減少了尿素態氮的淋溶損失,增加了土壤中有效態氮的含量。分享友人