氮磷比

研究了酵母摇瓶发酵中pH、装液量、初糖浓度、碳氮磷比和补糖方式对谷胱甘肽（GSH）发酵的影响。

The effects of pH , broth content , initial sugar concentration , ratio of carbon and nitrogen and phosphorus and glucose feeding method on GSH production of shaking flask were investigated .

不同氮磷比条件下浮游藻类群落变化

Changes of algal communities in water body with different proportions of nitrogen and phosphorus

过高的氮磷比不利于浮游植物进行光合作用。

The high rate of nitrogen and phosphorus is unfavourable to the photosynthesis of the phytoplankton .

基于氮磷比的赤潮灾害危险度评估方法研究

Study on Hazard Degree Assessment Method of Harmful Algal Blooms Disaster Based on N / P Ratios

并且还发现，在氮磷比为5∶1的条件下，菌藻固定化胶球对氮和磷的去除效果最好。

The removal efficiency of nitrogen and phosphorus was the highest at N / P ratio of 5:1 .

在不同氮磷比培养条件下的生长特性和藻间竞争作用，探讨了氮磷含量及其比值对赤潮爆发的影响机理。

In this paper , the effects of different N / P ratio on the relationship of P metabolism between M.

本研究找出了在人参上氮磷比为1∶2.6的最佳配方施肥。

It was found that the optimum ratio of nitrogen to phosphate fertilizers for the cultivation of Ginseng showed be 1:1.6 .

采用每日常规监测与单日逐时连续监测相结合的观测方法，研究涉及的参数主要包括叶绿素a、氮磷比、溶解氧和其它环境因子。

Day-to-day monitoring and hourly monitoring was done . The parameters include chlorophyll-a , ratio of nitrogen to phosphorous , dissolved oxygen and other environmental factors .

高氮磷比的中氮和高氮箱内，藻类生物量、细胞密度与叶绿素a都远高于对照和高磷箱；高氮箱中叶绿素a均值最高，为69.7μg。

Algal biomass , cell density and chlorophyll a content in medium and high N groups were higher than those in control and high P groups .

入侵种空心莲子草对养分水平的响应更为敏感，同时对氮磷比的响应快于其他2个物种，从而更好的促进自身生长和竞争能力。

Invasive species A. philoxeroides had stronger response to the change of nutrient level and N : P ratio than other two species , promoting its the growth and competitive ability .

采用正交试验法，对滴灌条件下的日光温室番茄的垄沟宽度、灌溉定额和氮磷比三因素组合方案进行了试验研究。

It was carried out to optimize composition experiment of three factors among furrow width , irrigation quota and N / P_2O_5 ratio for heliogreenhouse tomato under the condition of drip irrigation by cross experiment methods .

发现传统上接受的氮磷比指数不宜作为判断湖泊浮游藻类氮限制或磷限制的依据，无论氮磷比如何，总磷都是限制因子。

Traditionally accepted index of TN / TP ratio was found to be inappropriate to divide phytoplankton as nitrogen - or phosphorus-limited . TP is the primary limiting factor regulating Chl a for all the cases .

讨论了渤海湾氮磷比的变化趋势、年际变化的影响因素，以及氮磷比与浮游植物生长限制性因子的关系。

The infecting factors of variation trend and variation between years of N , P and N / P in Bohai Bay , as well as the relationships of N / P and the limitation factors for phytoplankton growth were discussed .

结果发现，无论有无附生菌存在，铜绿微囊藻在氮磷比为16∶1时，生长情况最好，此时微囊藻能迅速有效地吸收水中的磷，而且附生菌的存在能促进藻的生长。

Whether the attached bacteria was presence or not , M.aeruginosa grew better and adsorbed P from the medium quickly and effectively under the N / P ratio 16 ∶ 1 . The presence of attached bacteria could promote the growth of M. aeruginosa .

在粮食作物上，采用氮磷比为1：1型的复合肥应以50%作基肥.再用50%的单质氮素作追肥经济效益最高。

Field experiment showed that the highest economic effect was found when the 50 % compound fertilizer with a 1 : 1 N : P_2O_5 ratio was used as basal fertilizer and 50 % single nitrogenous fertilizer for top dress - ing on the grain crops .

其中潮土和紫色土氮磷含量比黄壤含量高。

In that soil the N , P content of the Chao soil and purple soil are higher than yellow soil .

氮、磷比为124.2∶1，表明磷是该水体生物生产力的限制性营养元素。

The N / P ratio was 124.2 ∶ 1 , which means that phosphorus was the major nutrient limiting biological productivity .

正交实验结果表明，pH8.5，盐度30‰，氮磷质量比10：1为该菌株最适生长条件。

Orthogonal factorial experiment showed pH 8.5 , salinity 30 ‰ and ratio of nitrogen to phosphorus 10:1 are the optimal growth conditions .

分析了生物膜反硝化除磷系统在生物量，污泥龄，以及碳、氮、磷质量比方面和活性污泥法反硝化除磷系统的差异。

It summarizes the factors influencing the results of the biological phosphorus removal with SBR technique , which mainly includes dissolved oxygen , sludge age and pH etc.

生物膜反硝化除磷系统的最佳碳、氮、磷质量比为26.6∶7.67∶1，其中最佳碳、氮质量比为3.5，最佳碳、磷质量比为26.6。

The optimal mass ratio of carbon , nitrogen and phosphorus for biofilm denitrifying phosphorus removal system is 26.6 ∶ 7.67 ∶ 1 , thereinto the optimal mass ratio between carbon and nitrogen , carbon and phosphorus are 3.5 and 26.6 respectively .

推荐施肥量和农户施肥量比较得出：氮磷推荐施肥比农户施肥小麦分别降低了33.6%和16.3%，玉米分别降低了32.9%和1.79%，钾肥施用量增加。

Compared with conventional fertilization , rate of N and P with fertilizer recommendation were decreased by 33.6 and 16.3 % in wheat and 32.9 and 1.79 % in corn , respectively , while rate of K for both crops was increased .

氮磷钾养分配比对温室土培黄瓜产量及品质的影响

Study of N P K Ratio on Yield and Quality of Soil Cultured Cucumber in Greenhouse

调亏灌溉对绿洲麦田氮磷生态化学计量比的影响

Effect of Regulated Deficit Irrigation on N ∶ P Ratio of Ecological Stoichiometry in Oasis Wheat Field

结果表明：近些年来，2湾遭受的氮、磷内源负荷比以前大；

The results showed that the loads of nitrogen and phosphorus of these two bays increased quickly in recent years .

交替方式氮、磷利用效率比常规方式分别提高25.1%，25.3%。

Compared with CI treatment , plant N and P use efficiency in CAI treatment was enhanced by 25.1 % and 25.3 % , respectively .

羊草绿叶氮、磷浓度和比叶面积沿氮、磷和水分梯度的变化

Changes in [ n ] , [ p ] and specific leaf area of green leaves of Leymus chinensis along nitrogen , phosphorus and water gradients

在设施蔬菜土壤耕层中碳氮比、碳磷比、氮磷比都随种植年限的增加而降低。

The value of C / N , C / P , and N / P declined with the increase of cultivation years . Carbon has a low level in facilities vegetables cultivated soil .

不同林分类型叶片氮磷含量、氮磷比及其内吸收率

Nitrogen and phosphorus concentrations , N ∶ P ratio and resorption efficiency of leaves in different forest types

另外，随着海拔高度的上升，植物叶片氮磷含量和氮磷比都呈现明显的下降趋势，这一现象支持生物-地球化学假说。

Nitrogen and phosphorus content in plant leaves and N : P ratio showed a significantly decline trend with increasing of altitude , which supported the biogeochemical hypothesis . 6 .

最佳氮源为NH4NO3，氮磷比大约控制在4∶1左右时，降解效果较好.在原油初始浓度较低时，降解率随石油浓度的升高而略有提高。

The ammonium nitrate ( NH_4NO_3 ) was demonstrated as the optimum nitrogen source and the optimum ratio of nitrogen over phosphorus was 4 over 1.The degrading efficiency will increase a little with the increasing of the oil concentration under low initial oil concentration .