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pot experiment 盆栽試驗。

pot hat

With the purpose of better understanding some weak links in this subject , we comprehensively and systematically compared the effects of some typical inhibitors and their different combined ways in inhibiting cd bioavailability in purple soil , further studied the laws and affecting factors of cd ' s transfer and transformation in soil - plant system , revealed the mechanisms inhibitors function , and explored the practicable inhibitor prescriptions and their usage . the results are expected to provide reliable techniques for controlling cd pollution of agricultural soils in chongqing and it is also significant to ameliorate soils polluted by other kinds of heavy metals . comprehensive methods including pot experiment , laboratory culture experiment , kinetic and thermodynamic adsorption - desorption experiment were adopted in this study , and the acidified purple soil was chosen to test , considering that cd is highly active in this soil 本研究針對重慶市農業土壤的污染狀況,選取鎘活性較高的酸化紫色土為供試土壤,采用盆栽試驗、培養試驗、化學熱力學與動力學吸附試驗相結合的方法,系統研究和比較多種調控劑及其不同組合方式對鎘生物活性的效應,并揭示鎘在土壤?植物系統中的遷移轉化規律及影響因素,進一步分析調控劑的作用機理,探尋具有實際應用價值的調控劑配方及合理使用的方法,這不僅可以為重慶市農業土壤鎘污染的防治提供可靠的技術保障,而且對于其它重金屬污染的治理也有一定的理論意義。

Many studies have shown that lignin was the limited factor of straw degradation . in this study we screened a strain named b3 from the stem ' s inner bark of bischofia polycarpam airy shaw which yielded high level of ligninase . the strain b3 ' s ability in straw degradation and its effect on the next season crop ' s growth were then studied by making it into microbial agent in the potted experiment 鑒于此,本論文即從篩選高產木質素酶的菌株入手,結果從重陽木莖內皮中篩選到一株有較高漆酶(木質素酶之一)活性的菌株b3 ,并將其制成秸稈降解劑,模擬大田試驗研究了它對秸稈的降解效果及對后季作物生長的影響。

Pot experiments materials were carried out to determine the cold hardiness of six varieties cultivated popularly in henan , named bainong aikang 58 , handan 6172 , yumai 49 , yumai 54 - 99 , yumai 18 , yumai 2 , under controlled temperature at seedling stage , over - wintering stage , green returned stage and jointing stage for identifying 摘要以河南省主推品種百農矮抗58 、邯鄲6172 、豫麥49號、豫麥54 - 99系、豫麥18號、豫麥2號6個小麥品種為材料,通過控制各生育時期的生長溫度,分別測定苗期、越冬期、返青期和拔節期各品種的抗寒能力。

In this dissertation , effects of different acidities of simulated acid rain and different concentrations of zn or cd on the fresh weights , contents of chlorophyll , activities of sod , pod , cat , and contents of mda in brassica chinensis l and phaseolus vulgaris l were studied with a pot experiment . the main results were as follows : the contents of chlorophyll of brassica chinensis l and phaseolus vulgaris l had the same tendency as the biomass of these two plants treated with simulated acid rain , zn and cd . the fresh weights and contents of chlorophyll of brassica chinensis l decreased with increasing in concentrations of zn , cd and acidity of simulated acid rain 本文通過盆栽試驗,研究了不同強度的模擬酸雨和不同濃度的zn 、 cd對小白菜、四季豆生長量、葉綠素含量、根和葉保護酶活性以及mda含量的影響,主要研究結果如下:在模擬酸雨和zn 、 cd的脅迫下,小白菜、四季豆葉綠素含量與其生長量有著相同的變化趨勢,其中小白菜鮮重和葉綠素含量隨著zn 、 cd濃度以及酸雨強度的增加而減小,四季豆鮮重和葉綠素含量隨著zn 、 cd濃度以及酸雨強度的增加先升高后下降。

3 . it is exert through cultivated in a pot experiment cultivation for two month lindane and ddt original pesticide experiment after two month to get soil examine appearing value very low to find to observe . soil sampled form j and n farm which have used lindane and ddt for 40 years , the analysis result showed that the residue of the two pesticides are very high . lindane remains and reaches as high as 996 . 06 g kg - 1 , and ddt is 3382 . 75 g kg - 1 4 經過盆栽實驗兩個月的培養觀察發現施加到土壤中的林丹與ddt原藥在兩個月的實驗后檢出值較低具有使用林丹、 ddt四十年歷史的北京近郊j 、 n農場中兩種農藥殘留較高,林丹殘留最高可達: 996 . 06 g ? kg ~ ( - 1 ) , ddt殘留最高可達: 3382 . 75 g ? kg ~ ( - 1 ) 。

Laboratory culture experiment with the same treatments as pot experiment but without plant was carried out synchronously under constant temperature ( 25 ? ? ) and 20 % soil moisture . to study the influence of inhibitors on the dynamic process of transformation and variation of availability of cd in soil , laboratory cultured soil was sampled in certain interval during the 128 - day cultured period for the analysis of cd availability and speciation . in adsorption - desorption experiment , the tested soil had fistly been cultured under constant temperature ( 25 1 ) and 20 % soil moisture for two months after the treatment according to the designed plan , then isothermal adsorption - desorption experiment was proceeded when the reaction between inhibitor and soil tended to be stable 石灰施用量對植株吸收鍋有顯著影響,植株各部位鍋含量k )與石灰添加量… , )的關系可以很好地用方程y叫( ax斗bx化)描述,石灰對植株鍋累積的調控存在一個最佳抑制效應劑量,低于或高于這一劑量均不能達到最佳抑制效果,但對于不同植株部位和不同污染水平,最佳抑制效應劑量不同;低用量下,單位石灰添加量對植株吸收鍋的抑制作用比高用量時大,因此若綜合考慮調控劑的施用成本及其對生物量的影響效應,則在本試驗條件下以施用石灰0

By a pot experiment , the results showed that the contents of p , s and ca increased with fertilizing iso - pookgpjos / hm2 in the soil , especially the content of p increased obviously and that urease , dehydrogenase , phosphatase activities decreased with increasing the amount of fertilizer p , especially phosphatase activities reduced significantly , but polyphenol oxidase activity increased 大量施用磷肥后對玉米的生物量未產生明顯的彤響,但隨著磷肥施用量的增加,玉米葉中磷含量顯著的增加,但mg 、 fe 、 zn 、 cu的含量出現下降,植株對mg 、 zn和cu的吸收明顯減少。

The correlation coefficient between 1 mol / l ntljoac extracted k and k uptake by corn plant was much lower than that with resin membrane k . 4 . the k adsorbed on resin membrane after extraction was easily desorbed by 0 . 5 mol / l hc1 solution . the k desorbed in the first time had a very significant correlation with k uptake by corn seedling in the - k treatment of pot experiment 用1mol l中性nh _ 4oac提取的土壤速效鉀與盆栽耗鉀試驗中首茬玉米吸鉀量之間的相關系數較低,雖然也達到了極顯著水平,但明顯低于樹脂膜室內埋置法提取的土壤鉀與玉米吸鉀量之間的相關系數。

The tested inhibitors are listed as follows : alkali matter including lime , silicon - containing fertilizer and coal ash ; organic matter including plant compost , pig manure and humic acid ( ha ) ; ion inhibitor such as znso4 pot experiment , in which lettuce ( lacruca sativa var . augustana irish ) was chosen as the tested plant , involved 27 treatments , 4 replications each 本研究選用的調控劑有堿性物質石灰、硅肥、粉煤灰,有機物料秸稈堆肥、豬糞、胡敏酸,離子拮抗劑znso _ 4 。按不同類型調控劑的比較、有機物料與石灰的組合效應、石灰不同用量的比較等原則設計試驗。

In the paper , a series of the field investigation , laboratory culture and pot experiments were conducted , to study microbial eco - characteristic and restoration in relation to soil - plant system of red soils reclaimed - mine . the main results were summarized as below : 1 . soil microbes eco - characteristic in lipu copper mining reclaimed soil - endurance plant system were studied comparatively , zhe jiang province 本論文采用野外礦區調查、實驗室培養和溫室盆栽試驗相結合的方法,對我國南方紅壤礦區土壤的微生物生態特征及其穩定性恢復進行了研究,以期為礦區重金屬污染及退化土壤微生物生態系統的生物修復及土壤復墾工程提供理論技術依據。

My experiment can mostly include two sections : the first one was a pot experiment which was carried out in the greenhouse to study the physiological responses of helianthus tuberosus l . seedlings to salt and water stress ; the second one was a field experiment which was carried out in laizhou , shandong province to study the effects of seawater irrigation on helianthus tuberosus l . and soil 本試驗由溫室盆栽耐鹽耐旱試驗和大田海水灌溉試驗兩大部分組成:溫室盆栽試驗主要通過砂培的方法,研究了幼苗期菊芋在鹽分和水分脅迫下的生理反應;大田試驗在半干旱的山東萊州地區進行,研究了海水灌溉對菊芋及其土壤的影響。

The microbial agent ' s ability in straw degradation was detected by potted experiment and scanning electron microscope . the result indicated that after 15d the structure of straw was destroyed and did not float longer , which did not affect crop ' s rootage ; furthermore the effect on the next crop ' s growth was studied , and the results shown that the microbial agent could accelerate the next crop ' s growth . the strain b3 secreted incretion iaa and aba by tlc and immunological analysis 通過盆栽試驗和掃描電鏡觀察檢測了秸稈降解劑對秸稈的降解效果,結果發現,該降解劑在15d內就能破壞秸稈的結構,使秸稈不再漂浮,不影響作物的生根;進一步檢測其對后季作物生長的影響發現,該降解劑還能促進后季作物的生長,薄板層析和免疫學檢測均顯示菌株b3分泌了iaa和aba 。

A kind of potassium fertilizer based lignin was made from modified lignin and potassium chloride , leaching experiment and pot experiment were conducted to test the effect of modified lignin on slow - releasing potassium fertilizer and the bio - utilization 摘要利用木質素改性產物作為肥料添加劑,與氯化鉀復混制成木質素鉀肥,通過土柱淋溶與盆栽試驗,驗證木質素對鉀肥的緩釋作用與作物對鉀肥利用情況。

Interspecific interactions can affect micronutrients uptake . thus pot experiments were conducted to investigate the effects of oat , rape and chickpea on mn nutrition of wheat in intercropping system or in oat - wheat rotation 基于以上理論,本研究采用盆栽試驗探討了在不同的種植方式下(間、混作和輪作) ,燕麥、油菜、鷹嘴豆對小麥生長及錳營養的影響。

Pot experiments were conducted to select efficient mycorrhizal isolates in terms of p uptake and plant growth by sweet potato . four isolates , sp4 , sp5 , beg 167 and beg 141 . were selected from the 17 tested isolates 以宿主植物的生物量、產量及吸磷效應作為篩選高效菌株的主要標準,在所用的17個菌株中,選出sp4 、 sp5 、 beg167和beg141為高效菌株。

In order to improve the n efficiency , pot experiments were carried out to study the difference in grain protein formation between two wheat varieties with different n efficiency and the regulation effects of n form 摘要為探索提高氮素利用率的途徑,采用盆栽方法研究了兩個不同氮效率小麥品種籽粒蛋白質形成的差異及不同形態氮素對其的影響。

The experiments were conducted in vitro , and a pot experiment was also carried out to investigate the effect of inoculation of one of the ectomycorrhizal fungi ( suillus granulatus ( l . ex fr . ) 在此基礎上,探討了重金屬cd和zn污染條件下,接種真菌點柄乳牛肝菌對宿主植物油松( pinustabulaeformiscarr )的生長及其對重金屬耐性的影響。

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。

The effects of spraying plant growth regulator under drought stress on seedling growth and physiological and biochemical indexes of soybean were studied based on pot experiment 摘要采用盆栽試驗,研究了在模擬干旱脅迫下噴施植物生長調節劑對大豆幼苗生長發育和生理生化指標的影響。