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- The best initial pH value of growth medium for xylanase production was at pH6.0. Corn cob xylan (water insoluble) and Tryptone were the best C and N sources, respectively. 经摇瓶实验，卷须链霉菌最佳的发酵产酶条件为：最适初始pH6.;0，玉米芯水不溶木聚糖为碳源，胰蛋白胨为氮源，添加0
- In a common medium with suitable C, N sources, Streptomyces qianfoensis sp. nov. SIIA 9818 was cultured for 7 days, harvested cultural broth with 50% mycelial mass. 千佛链霉菌新种 SIIA9818(Streptomycesqianf oensis sp nov SIIA9818)在含合适碳氮源的培养基内 ,经发酵获约 50%25菌丝量的培养液。
- The nutrient solution culture experiment was conducted to study effects of Se on seedling growth and N,P,Ca content in Italian ryegrass,and seedling growth effects of Se,Si and Se and Si mixed application under N sources (NH4NO3,CO(NH2)2,NaNO3,NH4Cl). 通过yoshida溶液培养多花黑麦草幼苗;研究了Se对幼苗生长和N、P、Ca元素含量以及不同氮源(NH4NO3、CO(NH2)2、NaNO3、NH4Cl)下Se(0.;1mg/L)、Si(SiO240mg/L)、Se与Si共施对幼苗生长的影响。
- GongZ Y, Yu S F, Qu L.Study on the needs of C sources and N sources for mycelial of Pleurotusferulae lenzi[J].J. of Agric.Univ.of Shandong (Natural Sci.Ed. ), 2002, 33(4): 418- 421. [4]宫志远;于淑芳;曲玲.;阿魏侧耳菌丝生长对碳氮营养需求的研究[J]
- Pleurotus tuber Regium were cultured with wheat bran, cattle dung, ammonium sulphate and urea as N sources, and its sclerotium yield and total content of amino acids were determined. 摘要运用灰色系统理论，探讨了不同氮源对虎奶菇菌核产量及其各类氨基酸总量的影响，并进行灰色关联的综合评判。
- This fact gives evidence that amino-N is the direct N source for protein synthesis. 这一事实表明,氨基氮是蛋白合成的直接氮源。
- The reasons of low free SO2 content in litchi fruit wine were investigated in this paper and the addition of N source nutritions to increase free SO2 content was also studied. 本文探讨了荔枝酒中游离SO2偏低的原因,并研究了通过添加N源营养素来增加游离SO2的含量。
- In comparison with ammonium as sole N source, the ammonium nitrate nutrition increased root length, root surface area, root density, and total P uptake. 与单一的铵营养相比，铵硝混合营养增加了根长和根系的表面积、根系的密度以及磷的总吸收量;
- The results showed that nitrate concentration of false pakchoi was significantly reduced when NO3--N source in nutrition solution was replaced by other nitrogen source. 结果表明 ,营养液中的硝态氮源被其他形态氮源替代后能明显降低菜心的硝态氮含量 ;
- Under the low pH condition with NH~+_4N as the sole N source, aerenchyma could be formed much easier in the root cortex of rice. This might be an adaptable mechanism of plant to decrease toxicity of ammonium accumulation under low pH condition. 低pH条件下且以NH4+-N为单一N源时,稻根皮层处更易形成通气组织,可能是植物为了减轻低pH条件下铵毒害而产生的一种适应性机制。
- He cited many sources for his book. 他在书中引用了许多资料。
- The library has quantities of reference sources. 该图书馆藏有大量可供参考的原始资料。
- The facts were culled from various sources. 这些事实是从各方收集到的。
- Some of his ideas were borrowed from other sources. 他的某些见解是从别处借用来的。
- I hope man will soon succeed in tapping these new energy sources. 我希望人类在开发这些新能源方面很快获得成功。
- He fought in the N African campaign during the last war. 在上次战争中他在北非战役参战。
- He scratched up a football team from various sources. 他从各方面找人拼凑成一支足球队。
- The act of obtaining usable substances from unusable sources. 废物利用从无用的东西中获取有用物质的行为
- They are required to publish the sources of their campaign funds. 他们必须公布自己竞选经费的来源。
- We will appeal to a great variety of sources of information. 我们将求助于各种信息来源。
