適氮的 的英文怎麼說
中文拼音 [shìdànde]
適氮的
英文
nitrophilous-
After analyzing purple soil sampled from neijiang, leshan ofsichuan provinec and yuanmou of yunnan province, the contrast results of microbe quantity feature between surface and subsurface purple soil were obtained as follows. the content of soil organic matter, total and available nitrogen, phosphorous and potassium of surface was higher than subsurface, not relating to the type of purple soil and soil utilization way. the quantity of microbe _ bacteria, actinomyces and mould in surface purple soil was higher than subsurface, which indicated that the organic matter and airy condition in surface soil was more suitable for microbes growing. there was the same tendency in profile change of microbe quantity in purple soil located in temperate _ humid climate of sichuan basin in contrast with dry _ hot climate of yuanmou, yunnan. the nutrient situation of purple soil in sichuan basin shown that state of surface was better than subsurface, while in yuanmou of yunnan the state was on the contrary due to the degradation of surface soil
實驗室對四川內江、樂山和雲南元謀不同類型紫色土表層和亞表層微生物數量特性的比較分析表明:土壤有機質、氮磷鉀全量及其速效量均表現為表層高於亞表層,與紫色土類型和利用方式無關;三大類土壤微生物細菌、放線菌和黴菌數量均表現出表層高於亞表層,表明紫色土表層的有機質和通氣性優于亞表層,適宜於這三大類微生物生長;溫濕氣候條件下的四川盆地和乾熱氣候條件下的雲南元謀其紫色土微生物數量的剖面變化具有相同的趨勢,唯土壤營養狀況在四川盆地紫色土中表現為表層優于亞表層,而在雲南元謀紫色土中由於表層土壤的退化作用表現為亞表層優于表層的相反情況。The argos is ideally suited for applications such as district regulator and monitor regulator stations, and industrial process gas applications, such as air, nitrogen and argon
它很適合使用於如天然氣輸送與配氣系統上的區域調壓及監控調壓站;然而它亦可被使用於其它許多任務業的氣體如:空氣、氮氣與氬氣的製程中。Isolate all grew well in the culture medium with initial ph 4 - 10, the optimal growth temperature range was from 28 to 30. 5 degree c. it grew well on the medium for fungi growth, such as pda medium and czpek medium etc, and also grew well on the cause ' s i medium and the non - nitrogen medium, but little growth on the luria bertani medium ( lb ) and beef extract peptone medium. it did not need special nutrition factors for growth, but source of the carbon was the key factor to growth, all of its nutrition needs were different from that of common bacteria
該菌在初始ph4 - 10的培養基中都能夠生長,生長最適溫度范圍為28 - 30 . 5 ,在pda 、查氏等真菌培養基中生長旺盛,在高氏1號和無氮源培養基中同樣生長良好,而在lb與牛肉膏蛋白腖等細菌培養基中生長很差,碳源是其生長的關鍵因子,這有別於一般細菌的營養需求。It has been 40 years since dobereiner and ruschel isolated the nitrogen - fixing bacteria from the rhizosphere of sugarcance plants and demonstrated the potential of diazotrophs to associate with graminaceous plants. more recent evidence of significant biological nitrogen fixation in economical important graminous species, particularly sugar cane, rice and forage grasses, has induced tremendous interest in ni fixation by non - legumes
本研究分離、篩選得到一株固氮酶活性高且穩定,生長勢強的聯合固氮菌株,並對其分類地位、形態及生理特徵、對環境的適應性及其對植物的促生效果和作用機理作了系統研究,得結果如下。The best carbon source for agroeybe chaxingu is amidulin, followed with saccharose, dextrose ; the appropriate nitrogen nutrient is peptone, yeast extract and bran
結果表明,茶樹菇菌絲生長的最適碳源是可溶性澱粉,其次是蔗糖、葡萄糖;最適氮源是蛋白腖,其次是酵母膏、麩皮。The biological characteristics of mycelia from phellinus igniarius and culture media were studied. two kinds of culture media were suitable for the growth of mycelia. the result indicated that the culture medium with potato as nitrogen source and saccharose as carbon source was suitable for collecting mycelia, and the culture medium with peptone as nitrogen source and solvable amylum as carbon source was suitable for conservation
為了最大限度地保存菌種的活力,以提高菌絲體的質量及菌絲體內活性成分的累積,本文通過對比研究,進一步對其生長基質進行篩選,明確了兩種適于桑黃菌絲生長的固體培養基:以馬鈴薯為氮源、蔗糖為碳源的培養基較適用於菌絲收集,以蛋白腖為氮源、可溶性澱粉為碳源的培養基較適用於菌種的保藏。It is the optimal time for subjecting creatine to the medium when cultured to 12h and the concentration of creatine was 0. 75 %. creatine, sarcosine and choline chloride could induce the creatinase production and creatine was the optimal inducer, but creatinine and urea could not induce the creatinase production. 3 purification of creatinase the process of creatinase purification was performed as follows : first the enzyme was completely precipitated in the range of 40 - 80 % of saturation with ammonia sulfate fraction precipitation
最佳氮源為玉米漿和蛋白腖,最佳比例為2 : 3 ,最佳濃度為1 . 6 ;加入其它碳源時有助於菌株穩定產酶; 100ml搖瓶的最佳裝液量為15ml ;肌酸、肌氨酸和氯化膽堿都能誘導菌株產酶,其中肌酸誘導產酶的效果最好,而肌酐和尿素不能誘導菌株產酶;誘導物肌酸的最適加入時間為接種培養12小時后,最適加入量為0 . 75 。This paper aimed at present status that most researches assembled in chemical products, adopted different determine methods, represented the transformation characteristic of nitrogen among water and soil of the sulphureous urea, confirmed the nutrient release speed, found out the optimum determine method in agricultural production application
針對目前對緩釋肥料釋放特性的研究集中在化工製作領域這一現狀,採用不同的測定方法,闡明含硫尿素中的養分氮在水及土壤中的轉化特點,確定養分的釋放速率,以求找出適合農業生產應用的方法。Chart s horizontal series bulk stations for liquid nitrogen, oxygen or argon are available in sizes from 1, 500 to 15, 000 gallons 5, 678 to 56, 781 liters. these hs bulk stations are designed to asme code. standards are 175 and 250 psig 12 and 17 bar ; other pressures are available upon request
查特vs - gb立式深冷液體貯罐系列,符合中國gb150 gb18442標準,廣泛適用於液氧液氮液氬等深冷液體的貯存及使用,具有多種不同的規格,其中最大允許工作壓為8 bar和16 bar兩種規格作為標準貯槽系列。Effects of diverse environmental factors on the growth rate ( od4oo ) and nitrogenase activity ( ara ) of the strain w12 hi nitrogen - free culture were investigated in our experiments. the results implied that the strain w12 could easily adapt to different cultural conditions : it could use various carbon sources ( especially glucose, sucrose, malic acid, mannitol ), propagate quickly and fix nitrogen at a temperature range of 15 ? to 40 ? and at 25 - 35 ? for optimum, at a ph range of 4 to 8. 5, at a saline concentration range of 0. 01 % to 1. 5 % ; low nlv " concentration had little effect on its nitrogenase activity. ara could also be detected when it grow in the culture media with 5mmol / l ntv "
W12菌株對環境因子的適應性研究:無氮培養條件下,測定溫度、碳源、酸堿度、滲透壓對w12生長及固氮能力的影響,結果表明,在15 - 40下均能生長並表達固氮酶活性,其最適生長及固氮的溫度為25 - 35 ;能利用葡萄糖、蔗糖、蘋果酸、甘露醇等多種碳源生長並固氮,當培養基中同時存在蔗糖和蘋果酸時,細菌生長和固氮活性最強;在偏酸和偏堿的條件下( ph4 . 5 - 8 . 5 )均能保持較強的生長勢和較高的固氮酶活性,並能通過調節自身代謝平衡並適應環境的酸、堿性變化,使培養液趨于中性:能耐受較高的滲透壓,培養液中卜、 5 naci濃度對其生長和固氮酶活性影響不大,當naci濃度升至2時,菌株的生長勢及固氮酶活性才有所下降:低濃度的鉸對其固氮酶活性影響不大,在0To meet the need of grain production, investigations such as property of nutrients uptake of high - yielding wheat, regularity of nutrient requirement of high - yielding maize, proper rate and ratio of npk fertilizers for high yields of wheat and maize, and rational rate and ratio of organic - n to inorganic - n in double cropping system have been conducted by shuming z. and yizhi l. et al. since 1980
為了滿足糧食生產需要,自1980年以來,張漱茗和劉毅志等人就開始調查高產小麥養分吸收特性、高產玉米養分需求規律、高產小麥和玉米氮磷鉀肥適宜用量和比例、一年兩作制中有機氮和無機氮的合理用量和比例。Hubei province to investigate the effects of several water and nitrogen management patterns on eco - physiological conditions, yield, water use efficiency and nitrogen use efficiency in paddy rice
結果表明,在適當的施肥量和合理的追肥方式下,與傳統的淹灌相比,節水灌溉可提高水稻水分生產率及氮肥利用率,獲得高產。At its liquid fermentation culture process, the most appropriate carbon source is glucose and white sugar, while the most appropriate nitrogen source is ammonium tartrate. the results also indicate that cg grows best between ph value 6. 0 - 8. 0, in which its growth period is about 15 days, and the best inoculating amount and the liquid capacity are respectively 10 - 15 % and 100 - 200ml. all these results will provide the theory bases for the reproducing of cenococcum geophilum
其液體培養最適碳源為葡萄糖、市售白糖;最適氮源為酒石酸銨。在ph值為6 . 0 - 8 . 0之間生長最快,其生長周期為15d左右,最佳接種量和裝液量分別為10 - 15 %和100 - 150ml 。以上試驗結果為土生空團菌的擴大繁殖提供了理論依據。The dynamics equations of soil water vaporizing and ammonia volatilizing hcluding the factors of water and temperature, and the dynamics - like equation of urea transforming into ammonium nitrogen in soil are founded in the paper, by taking the effect of interaction of water and temperature as subject, the dynamic change character of object studied as basis and using principle of chemical dynamic ; the empirio - equations of soil water retention curve including temperature and the empirio - equations including temperature between water potential of millet seedling leaves and soil water are founded in order to make the equation of relation between water potential and water content in soil suit the demand of temperature change much better
本文以水熱耦合效應為主題,基於研究對象的動態變化特徵,應用化學動力學原理,建立了含水、熱因子以及水熱耦合效應的土壤水分蒸發、肥料氨揮發動力學方程,以及施入土壤中的尿素轉化為銨態氮的動力學型方程;為使水勢?含水量關系式更好適應變溫條件應用的要求,建立了含溫度因子直接表徵土壤持水曲線的經驗方程,以及含溫度因子的穀苗葉水勢與土壤含水量關系經驗方程。In some plants, a mild nitrogen deficiency at certain stages of development may be desirable.
許多植物中,輕度缺氮在其發育的某些階段可能是適宜的。The addition of y - zro2 improves the fracture toughness of pcd and the grinding ratio also increases with the y2o3 content increasing. the optimum comprehensive properties of pcd can be achieved as the y - zro2 powders contain 2mol % y2o3. aluminum addition in si3n4 or si3n4 bond pcbn can prevent y - zro2 powders from forming the nontransformable tetragonal phase
在si _ 3n _ 4及si _ 3n _ 4中介結合的pcbn中加入適量的al作為燒結助劑,可以避免不可相變的t相zro _ 2形成,使應力誘導相變增韌高溫高壓燒結的氮化硅系陶瓷成為可能。Changing the grading of sic particles not only affects the strength and pile density, but also modifies the phase compositions and microstructure of the material. with the reducing of sic particles, the strength of the material increases obviously. the nitrification scheme has the greatest influence on phase compositions and microstructure " of si3n4 ( si2on2 ) - sic, after two continuous nitrification reacting peak and short - time high - temperature treating, the best properties can be obtained ; and the residual strength of the composite is much higher after the thermal shock resistance test, which shows that the material possesses excellent thermal shock resistance
本論文較全面地探討促進強度和顯微結構良好的si _ 3n _ 4 ( si _ 2on _ 2 )結合相的實驗條件,實驗數據顯示:引入適量的燒結助劑能夠促進si _ 3n _ 4 ( si _ 2on _ 2 )的生成和晶粒的長大,而過量時,其促進作用反而下降;隨著si粉加入量增加,生成的結合相明顯增多,復合材料的性能顯著提高;改變sic顆粒級配不僅影響復合材料的強度與堆積密度,而且對復合材料的物相與顯微結構也有影響,隨著顆粒逐漸細化,材料的強度有較大的提高;對復合材料的強度、物相與顯微結構影響最大的是氮化制度,經過兩個氮化高峰連續的反應和短時間的高溫后處理得到的復合材料性能最好;通過抗熱震性能實驗后復合材料的殘余強度較高,顯示出較好的抗熱震性能。( 2 ) diamond - like carbon films could be fabricated by plasma enhanced chemical vapor deposition method too, the surface morphology of the films was good, but the films had very big internal stress, which could be decreased by adding proper nitrogen gas in work chamber
( 2 )用等離子體增強化學氣象沉積技術也能制備類金剛石膜。優點是用這種方法制備的薄膜表面形貌得到了一定的改善,但內應力較大,通過加入適量的氮氣可以改善一些。In order to prepare high quality films, appropriate temperature and r. f. power should be selected, and moreover, the content of the hydrogen need be controlled
因此制備薄膜與襯底結合良好、較高質量的氮化硼薄膜,應在適當的沉積溫度( 420 )和射頻功率( 160w )下並適當控制反應氣體中氫氣的含量。It indicated 150 kg k2o per hectare is proper under the high level of nitrogen
表明在高施氮量下施鉀150公斤k2o /公頃是適宜的。分享友人