Study on Phosphatization and Passivation Two in One Treatment Process;2. Effects of the different accelerants(La and Ce nitrate,Na nitrate and Na molybdate) on phosphatization were discussed.

提出在表面生成磷化膜以提高不銹鋼的耐磨與耐蝕性能的工藝方法黄色网站真人版，討論了各種促進劑(亞硝酸鈉、鉬酸鈉国产区视频综合影院、硝酸鈰和硝酸鑭)對磷化膜形成的影響色色视频久久激情，探討了稀土對磷化的影響機理。

OBJECTIVE:To determine pilocarpine nitrate and its degradation products by HPLC,study the stability of pilocarpine nitrate eye-drops.

肖仰目的：建立以高效液相色譜法測定硝酸毛果蕓香堿滴眼液中硝酸毛果蕓香堿的含量及其降解產(chǎn)物狼友免费高清无码视频，同時進行了其穩(wěn)定性考察国语对白操。

Effects of nitrogen levels on nitrate accumulation, nitrate and potassium uptake of spinach were studied.

研究了不同供氮水平對菠菜硝態(tài)氮硝態(tài)氮累積與氮、鉀吸收的影響美女AA。

Fertilizer consisting of sodium nitrate or potassium nitrate .

智利和秘魯?shù)南跛徕c沉積物中含硝酸鹽的巖石或礫石舔穴在线。

So two important questions arise:(1) how does fertilizer grade potassium nitrate compare in performance to chemical grade, and (2) is stump-remover a viable source of potassium nitrate, and if so, how does its performance compare?

所以兩個重要問題出現(xiàn)：（ 1 ）如何肥料級硝酸鉀比較，在性能免费无码在线观看黄色视频，化學級精品911国产自产，和（ 2 ）是殘端-去除一個可行的來源，硝酸鉀免费AAA级黄片，如果是的話日本一区二区人妻在线视频，請問其性能比較？

Industry said that China is a large agricultural country, only the tobacco industry, the annual demand of agricultural potassium nitrate reached more than 200,000 tons and the majority rely on imports of agricultural potassium nitrate supply and demand very prominent contradictions.

業(yè)內(nèi)人士表示国产在线黄av，中國是一個農(nóng)業(yè)大國欧美激情1级片，只有煙草業(yè)，農(nóng)業(yè)鉀硝酸的年需求量達20多萬噸在线一区二区中文，多數(shù)的農(nóng)業(yè)硝酸鉀供應和需求依賴進口的矛盾十分突出91自拍偷拍首页。

The amount of potassium nitrate present in this product undoubtedly varies from brand to brand (in fact, some brands are not potassium nitrate based, and are thus useless for propellant, such as Bonide TM Stump-Out ).

金額硝酸鉀精品偷拍欧美日韩视频网站免费，目前在這方面的產(chǎn)品，無疑是不同的品牌久久精品这里只有精品久久，以品牌（事實上久久综合国产72精品，一些品牌并非硝酸鉀的基礎，因而也是無濟于事的推進劑国内精品免费视频，如bonide 国产一级a作爱片在线观看？殘端淘汰）。

The nitrate content and nitrate reductase activity increased significantly with increasing of the nitrogen concentration.

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To solve the problems of nitrate and heavy mental pollution in vegetable products, some research works were conducted by our research group, including the controlling of the nitrate content in hydroponic lettuce by regulating nutrient formula, in addition, studies on the effects of Cd on the growth and quality of lotus root and investigations of vegetable field pollution were also conducted.

本方向根據(jù)我國蔬菜生產(chǎn)中硝酸鹽和重金屬污染比較突出的問題，重點開展了水培生菜的硝酸鹽控制技術人人草人人草.COM、重金屬鎘對蓮藕生長發(fā)育欧美日韩综合精品一区二区、蔬菜菜田污染成因與防控等方面的研究，建立了多種蔬菜的標準化安全生產(chǎn)操作規(guī)程免费刺激无码高潮H视频，為蔬菜安全生產(chǎn)提供了有力的技術支撐免费观看黄网。

Results showed that spraying KCl solution every other day for 15 days from late flowering decreased nitrate content in the leaf and stem, promoted nitrogen redistributed to silique, increased nitrate reductase activity in the leaf. After spraying 1% KCl solution does not affect the fresh weight of rapeseed. And more obvious differences between the species, different varieties of the same deal with the differences between the more significant.

結果表明，噴施氯化鉀溶液能有效降低油菜莖葉硝酸鹽含量韩国精品黄色网站，與噴施硫酸鉀溶液和清水相比達到了顯著水平欧美亚洲国产aaaaaaaa；有效促進了氮素向角果分配；噴施氯化鉀還可以增強葉片硝酸還原酶的活性伊人网片毛，但不影響噴灑后采樣時油菜總的鮮質(zhì)量中文字幕一区二区在线播放；而且品種之間處理后的差異比較明顯，同一品種不同處理之間的差異也比較顯著欧洲熟妇色XXXX欧美在线观看。