磷氮比 的英文怎麼說

中文拼音 [līndànbǐ]
磷氮比 英文
phosphorus-nitrogen ratio
  • 磷 : 名詞[化學] phosphorus （15號元素,符號p）
  • 氮 : 名詞[化學] nitrogen （7號元素, 符號n）
  • 比 : Ⅰ動詞1 （比較; 較量高下、 長短、距離、好壞等） compare; compete; contrast; match; emulate 2 （比...
  1. 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。
  2. 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。
  3. Towards the research on two flood water of yuhe river in datong city during 2004, by measuring and comparing their discharge, sediment concentration 、 nutrient include organic, phosphorus, potassium, azote, the result shows that the nutrient content of the sediment is greatly larger than that of supernatant fluid

    摘要以2004年大同市御河乾渠兩場洪水為研究對象，對其流量、含沙量、養分（包括有機質，氮，磷，鉀）做了測定和比較，研究結果表明：洪水中下層泥沙中的養分含量遠大於上清液中的養分含量；洪水中整體養分含量隨著含沙量的增大而增大，並且養分含量和含沙量呈近似線性關系。
  4. The paper fristly compared the fertile soil with the incinerated sterile soil on the number of micro - algae, soil ph value, soil organic matter soil available phosphorus and soil nitrogen. and then, the author put fertile soil, which included micro - algae, proportionally into sterile samples and cultivated them respectively under illumination condition ( micro - algae can live and reproduce ) and dark condition ( micro - algae will die in some time ). the above indices were measured in 0, 30, 60 and 90days respectively, the analyse of the interrelation between the change of micro - algae ' s number and the changes of soil ph value, soil organic matter, soil available phosphorus and soil nitrogen indicated : ( l ) soil micro - algae which were native to fertile soil conld adapt to the changed circumstance and light acted as a decisive role to the distribution of soil micro - algae. under dark condition, the micro - algae ' s number declined gradually and went to zero in the end, while under illumination condition, on the 90th day, the micro - algae ' s number of per gramme was 6 - 7 times more than that of the beginning

    本文首先對肥沃土壤與經高溫焚燒后的貧瘠土壤中的微藻數量、土壤ph值、有機質含量、有效磷含量和全氮量進行比較研究，然後將包含微藻的綠化苗圃地肥土按不同比例接種進入貧瘠土樣中，分別在光照條件和黑暗條件下進行培養，在0天、 30天、 60天和90天分別檢測以上指標，比較有光條件和無光條件下，即有藻條件和無藻條件下貧瘠土樣所發生的變化，並分別對微藻數量的變化與土壤ph值、有機質含量、有效磷含量和全氮量的變化之間做相關性分析，以評估肥沃土壤中的微藻接種進入貧瘠土壤后的生長情況以及對貧瘠土壤的改良作用。研究結果表明： （ 1 ）土壤微藻對環境有較強的適應能力，且光照對其分佈起了決定性的作用。
  5. To 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。
  6. During this time both the monthly average algae density and lasting time increased year after year. the main algae forming algae bloom was cyanophyta and the dominant generas were microcystis. the accumulation of nutrients ( such as total nitrogen and total phosphorus ) with high concentration, high temperature of water and strong sunshine caused the algae bloom

    結果表明，水溫較高的夏秋季（一般為7 9月）是天津市城市供水水源的藻類高發期；近幾年，高藻期含藻量呈逐年增加趨勢，持續時間呈逐年延長趨勢；高藻期水源水以藍藻為主，所佔藻類總數最高和最低比例分別為91和70 ，其中的優勢屬為微囊藻屬；水源水中高含量的氮、磷等營養鹽是藻類高發的內在因素，水溫、光照等是外在誘發因素。
  7. At the same time, the screening cultivars and densities, and testing the effect of different n, p, k ratios were conducted

    同時進行了品種和密度篩選和不同氮、磷、鉀配比效果試驗。
  8. Eng. ) 1. know the fertilizers ( the appearance, properties, physical and chemical nature which includes the organic and inorganic fertilizers ) ; 2. determining the quality ( three major elements of the fertilizers ) and quantity ( the content of the moisture, nitrogen, phosphorus, and potassium ) of chemical fertilizer ; 3. the fertilizer composition expresses and calculation of the amount of application ; 4. it is cultivated in a pot or nutrient solution to test fertilizer effects ; 5. observe plant body : besides observing one ' s own test cultivated in a pot, and another diagnose the picture is for comparing ; 6. making of the compost

    中） 1 .認識肥料（包括有機、無機肥料的外觀、性狀、理化性質） ； 2 .化學肥料的定性（肥料的三要素）及定量（水分、氮、磷、鉀的含量）檢定； 3 .肥料成分表示方法及肥料施用量的計算； 4 .盆栽試驗或水耕試驗（印證報酬漸減率、麥氏理論或肥料元素缺乏徵狀，並進行農藝性狀調查） ； 5 .植體觀察：除了觀察自己的盆栽試驗以外，另備有診斷圖片以供比較； 6 .有機堆肥的製作。
  9. The soil physical composition, organic matter, total nitrogen, total phosphorus, total potassium and ph of salix psammophila ccheckerboard and contrast sand of dalate county were investigated in 2005, the effects of salix psammophila checkerboard on physical and chemical characteristics of sandy soil were analyzed

    摘要本試驗於2005年在達拉特旗測定了設置沙柳沙障的沙丘和對照樣地（未設沙障）的土壤機械組成、有機質、全氮、全磷、全鉀、酸堿度等理化指標，對比分析沙柳沙障對土壤理化性質的影響。
  10. However fertilizer regimes for oil palm in thailand have tended to emphasize n and p more than k

    然而，泰國現在油棕櫚的施肥狀況，比起鉀來，更偏向重視氮和磷。
  11. The result indicated that straw mulching could increase soil porosity by 2. 88 % - 5. 76 %, reduce soil bulk density by 1. 86 % - 3. 73 % and the content of soil water with straw mulching was higher than that with no straw mulching treatment ( ck1 ) at different growth stage, improve water - stable aggregate ; and increase soil organic matter, available n, available p, available k, improve soil perviousness and soil retention of water and fertilizer

    研究結果表明，與對照ck1 ，相比，秸稈覆蓋可使土壤總孔隙度增加2 . 88 % ~ 5 . 76 % ，土壤容重降低1 . 86 % ~ 3 . 73 % ，並且各生育期覆蓋處理的土城含水量均比對照高，並且秸稈覆蓋還田對促進土壤團粒結構形成具有較大作用，改善了土坡通透性和保水保肥性；同時秸稈覆蓋還田使土壤有機質、全氮、速效氮、速效磷、速效鉀得到明顯提高，從而培肥地力。
  12. On fertilizer effect, it would appeared that at shaoxing, the two fertilizer treatments of combination of organic manure and inorganic npk tended to give better yields than chemical npk alone, although there was no statistical significance observed

    關于肥料效應，在紹興似乎兩個有機無機肥配施的處理組合的產量比單施氮磷鉀化肥的產量更高，雖然沒達到統計學上的顯著意義。
  13. The surplus of n and p was less than that of quzhou county, while the surplus of organic input was more than that of quzhou county

    與曲周縣的整體情況相比，鞏村農作系統的氮素和磷素盈餘較少，有機質盈餘較大，養分投入更合理一些。
  14. In order to compare the retention time ( rt ) and limits of detection of 20 organophosphorous insecticides in different conditions the experiments were carried out using a medium polar capillary column ( db - 1701 ) and a no polar capillary column ( db - 1 ) with two detectors ( gc - fpd and npd ). the rt of 20 organophosphorous insecticides in two different polar capillary columns was a retention qualitative method for 20 organophosphorous insecticides. db - 1701 capillary column coupled with gc - fpd detector was used in the following study, the limits of detection were in range of 5x10 - 11 ~ 2x 10 - 12 g, the linear range was 2x 10 - 9 ~ 1 x 10 - 11g

    本研究用兩種檢測器（氮磷檢測器和火焰光度檢測器儀器）和兩種不同極性色譜梓（中極性毛細管色譜柱db - 1701 、非極性毛細管色譜柱db - 1 ）作為研究手段，比較了20種有機磷殺蟲劑在兩種色譜柱（ db - 1 、 db - 1701 ） 、兩種檢測器（ fpd 、 npd ）上的保留時間及最小檢測量，建立了用不同極性色譜柱上有機磷農藥的保留時間可作為有機磷農藥雙柱定性確證的的方法；建立了db - 1701 ， gc - fpd測定蔬菜中20種有機磷殺蟲劑的氣相色譜法，該方法的最小檢測量為5 10 ~ （ - 11 ） 2 10 ~ （ - 12 ） g ，線性范圍在2 10 ~ （ - 9 ） 1 10 ~ （ - 11 ） g時，相關性良好。
  15. We took atrazine and metsulfuron - methyl as examples to evaluate their dynamics of degradation in soils and the responses of microbial biomass after application of organic matters and fertilizers. the objectives are to find out the relationship among of organic matters / fertilizers added, microbial biomass and herbicides degradation, and for remediation of soils contaminated by herbicides. the main results were summarized as follows : effect of organic matters and fertilizers on microbial biomass in soils contaminated by atrazine / metsulfuron - niethyl herbicides ( l ) the contents of soil microbial biomass c, n and p significantly decreased after application of atrazine at the rate of 22

    與空白對照相比，在淡塗泥田中微生物生物量碳、氮、磷分別平均降低了12 . 37 、 11 . 79和11 . 94 ；在青紫泥田中分別平均降低了10 . 70 、 8 . 43和13 . 66 ；在黃筋泥田中分別平均降低了8 . 55 、 11 . 95 （因其酸度較低，微生物生物量磷的測定方法與前兩種土壤的不同，所以未測定其中的微生物生物量磷的含量） 。
  16. Except for the value of laboratory analysis of zn somewhat lower than that of the pot experiment, the results for laboratory analyses of n, p, k, s and fe were very similar to that for greenhouse experiments

    除鋅的實驗室化驗值比盆栽試驗稍低外，氮、磷、鉀、硫、鐵的實驗室測定值與溫室試驗結果十分相近。
  17. Effects of several ecological factors on the growth of perineries aibuhitensis

    氮磷鐵營養濃度對不同品系三角褐指藻生長影響的比較研究
  18. ( 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。
  19. There are higher potassium and calcium carbonate content, larger ph, lower organic matter, nitrogen and phosphoric. compared sandy soil with zonal soil, mechanical composition is coarsal, there are no substance leaching. 3

    土壤鉀素、碳酸鈣和ph值較高，有機質和氮、磷養分貧乏，風沙土與地帶性土壤相比，機械組成明顯粗化，物質未發生淋溶淀積。
  20. Prorocentrum donghaiense might benefit from the lower n / p while skeletonema costatum might benefit from the higher n / p

    氮磷比會影響浮游生物的生長，較高的氮磷比可能對東海原甲藻的生長有利，較低氮磷比則可能有利於中肋骨條藻生長。
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