Transportation and distribution of photosynthate in ramie plant were studied by using 14CO2 as tracer.

利用~(14)CO_2研究了苧麻光合物質(zhì)的運(yùn)輸及分配久久精品9999热。

Absorption activity of wheat roo'ts and it's,correlation with roots nutrient flow and leaf photosynthate flow were studied by using 32P and 14C tracer technique.

在小麥生育進(jìn)程各主要葉齡期分別用~(32)P和~(14)C標(biāo)記各根層和葉層欧美视频免费看视频，研究根系營(yíng)養(yǎng)物質(zhì)流與地上部光合同化物質(zhì)流的動(dòng)態(tài)變化及兵在產(chǎn)量形成上的相互關(guān)聯(lián)作用免费视频高清日韩精品视频在线播放。

Shenyang Research Institute of Chemical Industry, Shenyang 110021, China Abstract: Spectrophotometric analysis showed that the peak absorbance for food dye of Allura Red and biological dye of Ponceau-G occurred at 501 and 510 nm. In sunlight after 2, 4, 6, 8, 10 hours, the decomposition rates of Allura Red and Ponceau G were between 2.4 to 5.8% and 3.4 to 10.8%, so they are stable in sunlight. The recovery rates on cottons and glasses were very high, so they are easily recoveried from targets. Further studies showed that the recovery rates of two dyes on the leaves of wheat, cabbage, cucumber and tomato were different, so it need previously determine the recovery rate of tracer on the target crop to adjust the result. Field experiment showed it was easy to measure the pesticide spray distribution of high volume spay and low volume spray to use Allura Red and Ponceau-G as tracers.

沈陽(yáng)化工研究院，沈陽(yáng) 110021 摘要：光譜分析表明免费在线欧美，食品染色劑誘惑紅和生物染色劑麗春紅-G的最大吸收波長(zhǎng)分別為501 nm和510 nm 欧美性生活17-18；在連續(xù)2、4求在线毛片网址、6艹视频免费、8、10 h陽(yáng)光照射下中日韩欧美黄色网，分解率分別在2.4%~5.8%和3.4%~10.8%之間国产深夜福利嘿咻嘿咻视频，見光穩(wěn)定性良好；兩種染色劑在棉花葉片和玻璃片上的洗脫回收率都很高羞羞操电影视频，說(shuō)明易于從靶標(biāo)上洗脫下來(lái)国产草草影院在线观看欧美；進(jìn)一步測(cè)定表明，兩種染色劑在小麥欧美三级片视频免费、甘藍(lán)激情久久综合精品久久久久、黃瓜、番茄葉片上的洗脫回收率各不相同在线视频黄色中文中文网，所以對(duì)準(zhǔn)備進(jìn)行測(cè)試的作物應(yīng)先做一次洗脫回收率試驗(yàn)亚洲日韩高清AⅤ在线观看，用以校正測(cè)試結(jié)果国产午夜无码福利在线看网站；田間應(yīng)用表明，用兩種染色劑做示蹤劑免费看黄的视频，可以方便地測(cè)定常量噴霧和低容量噴霧過(guò)程中農(nóng)藥在麥田的沉積分布情況亚洲人v永久无码天堂网。

Based on the experimental data obtained from the belt discharge of REE tracer and INAA technology in room and field,the probability using this method to study vertical distribution of soil erosion in slope is analyzed.

通過(guò)室內(nèi)模擬和野外小區(qū)試驗(yàn)，采用中子活化分析手段免费成年人网址，進(jìn)行了運(yùn)用REE 示蹤條帶施放法研究坡面土壤侵蝕垂直分布的可行性分析午夜黄色精品视频在线播放。

Commodity pureness and computing method for tracer dosage with effective trace substance content has been established.

同時(shí)也提出了商品純度及有效示蹤物質(zhì)含量的示蹤化學(xué)劑用量的計(jì)算方法。

The result shows that radioactive isotope tracer petroleum logging technique possesses favorable application prospect both in theory and in production.

實(shí)驗(yàn)結(jié)果表明www.zachiew.com，放射性同位素示蹤能譜測(cè)井技術(shù)在理論上和生產(chǎn)中具有良好的應(yīng)用前景韩国午夜理论片在线观看手机。

A radioactive isotope of iodine widely used as a tracer in medical diagnosis .

放射性碘碘的一種放射性同位素，廣泛地用于醫(yī)學(xué)診斷作為追蹤劑

A radioactive isotope of iodine widely used as a tracer in medical diagnosis.

通過(guò)觀察或測(cè)定放射性同位素示蹤原子的行為或強(qiáng)度來(lái)研究物質(zhì)的運(yùn)動(dòng)和變化規(guī)律的技術(shù)96sao国产成视频永久免费。

This review focused on the transformation of SOC by three typical soil-feeding macrofauna, termite (Isoptera: Termitidae), rose beetle larva (Coleoptera: Scarabaeidae) and earthworm (Oligochaeta: Lumbricidae), using 14C isotope tracer technique. The microbial activities related to the transformation processes are also discussed.

本文綜述了3種典型土食性大型土壤動(dòng)物欧美两性一区，白蟻(Isoptera： Termitidae)、甲蟲幼蟲(Coleoptera： Scarabaeidae)和蚯蚓(Oligochaeta： Lumbricidae)黑人特级黄色网站，對(duì)土壤穩(wěn)態(tài)有機(jī)C降解轉(zhuǎn)化的14^C示蹤研究結(jié)果及相關(guān)的微生物作用黄色视频免费关观看网站。

Citrus reticulata ; leaves ; fruits ; phosphorus 32; absorption ; isotope tracer techniques/satsuma mandarin

柑； 葉亚洲性爱黄色视频；果實(shí)国产永久免费BBw；磷32；吸收一级做a免费看；同位素示蹤技術(shù)/溫州蜜柑