"The term is also used for sodium nitrate and calcium nitrate, both of which are used in the nitric acid industry and as fertilizer s, and for ammonium nitrate, a high explosive and fertilizer "

這一名詞也用于表示硝酸鈉和硝酸鈣AAAAA级毛片完整视频，此兩者在硝酸工業(yè)中被當作肥料使用日韩高清无码性爱视频。硝石也指硝酸銨，一種高爆炸性炸藥和化學肥料久久几网站。

Through making industrial experiment of zinc nitrate with existing equipments,the industrial experiment s of calcium ammonium nitrate and nitro-composite fertilizer show that the production of a calcium ammonium nitrate and nitro-composite fertilizer exist many problems,and so it is need to improve the process and increase equipments.

通過在現(xiàn)有裝置上進行的四硝酸鋅工業(yè)試驗农村一级久久不卡毛片、硝酸銨鈣工業(yè)試驗和硝基復合肥的工業(yè)試驗研究表明，硝酸銨鈣和硝基復合肥的生產(chǎn)都存在許多問題黄页网站免费观看大全，需要改進現(xiàn)有工藝和增加許多設備99riAV熟女视频。

Various specialty salts for specific uses are available in stores: for example, tenderizer (salt fortified with enzymes such as papain, used to tenderize meat), salt enriched with sodium nitrate or a combination of sodium nitrate and potassium nitrate (used to cure meats and as a preservative), and flavored salt (garlic salt, onion salt, celery salt, etc.).

各種的特制鹽在商店可以買的到久久五月天婷婷综合，例如：軟化劑(鹽加強與酵素作用，譬如木瓜蛋白酶使肉軟嫩)亚洲电影免费观看，鹽被用在與硝酸鈉或硝酸鈉和硝酸鉀的混合(使用在加工保藏肉和作為防腐劑)国产亚洲一二三，和調(diào)味鹽(大蒜鹽、蔥鹽精品91、芹菜鹽等)在线国产观看。

The preparation process includes the following steps: dissolving activator and RE oxide in the molar ratio of 0.01-0.02 in concentrated nitric acid and heating to dry, dissolving the obtain RE nitrate in deionized water to obtain solution of RE nitrate; dissolving soluble tungstate and surfactant in deionized water to obtain tungstate solution; mixing the RE nitrate solution and the tungstate solution through stirring to reaction for 25-60 min to obtain white precipitate; hydrothermal reaction of the precipitate in a reaction kettle at 100-260 deg.c for 24-72 hr; centrifugally separating, washing and drying to obtain the product.

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The results indicated that different organic fertilizers significantly affected the accumulation of nitrate in lettuce in both open field and plastic tunnel, lowest nitrate content occured in treatmants with cattle manure and well-composted chook manure, while bean cake and pig manure increased nitrate content as compared with the control.

本試驗主要研究了在露地和大棚條件下不同有機肥對生菜硝酸鹽積累的影響大量欧美黄a视频，以期為通過有機肥控制蔬菜硝酸鹽積累提供理論依據(jù)。1材料與方法以結(jié)球生菜為試材免费,欧美一级视频，品種為皇帝日本黄试看120秒。露地試

Double-barrelled nitrate selective microelectrodes were used to measure the nitrate activity in leaf cytosol and leaf vacuoles of different rice cultivars in either nitrate supply or deprivation conditions.

隨著水稻節(jié)水栽培技術的發(fā)展與應用，水稻硝酸根離子營養(yǎng)的研究已成為植物營養(yǎng)學和農(nóng)業(yè)生產(chǎn)領域的十分關注的問題之一[1]97精品国产综合区久久久久久。

Porous nanometer Ce-M-O solid solutions were synthesized by a microwave- induced combustion process using cerium nitrate hexahydrate, lanthanum nitrate hexahydrate, praseodymium nitrate hexahydrate and urea as raw materials.

使用Ce(NO3)3·6H2O直播黄片香蕉视频在线免费看， Pr(NO3)3·6H2O， La(NO3)3·6H2O中文字幕黄，尿素為原料啪啪啪美女国产，利用微波引誘燃燒法合成了多孔納米Ce-M-O固溶體。

Coordination compounds of chistosan with Ce,Zr,Pb and Cd were prepared,which were synthesized by the reaction of CTS with cerium nitrate,zirconium nitrate,cadmium sulfate,and lead nitrate in acid systems.

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Rare precious metals company mainly engaged in electroplating and metal surface treatment, environmental treatment, washed clean of raw materials: silver nitrate, nitric acid and rhodium, palladium nitrate; Asia selenium acid, selenium dioxide, tellurium dioxide, mineral selenium powder Japan, Mitsubishi Se powder, Mitsui, Sumitomo, emerging, Germany selenium powder; molybdenum trioxide, DMF; TX-10, NP-9 series, EDTA series; sodium hypophosphite, nickel nitrate, metal thallium, rhodium, palladium, platinum , Beryllium, Ritek, zirconium products; sponge palladium; electrolytic nickel, nickel corner, hydrazine hydrate, Ultra-fine silver, nano-silver; Thallium sulfate, iodized Thallium sulfate, nickel, copper sulfate, copper chloride, copper oxide, nickel oxide , Lanthanum oxide, oxidation Er, bismuth oxide, bismuth ingots, tin ingots, indium ingot, indium foil, Xinding, zinc powder; SnCl2, sulfate-tin; hydrofluoric acid, white Vaseline, propylene glycol, dichloro Methane, the propylene glycol, triethanolamine, triethanolamine oleic acid soap, chloroform, pyrophosphate copper, Gioia sodium, polyacrylamide, PAC, oleic acid, Glycerol, phosphate and other domestic and imported chemical series.

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The results show that the organic-inorganic specialty fertilizer 〔16-6-8-20 〕is favorite to the yield increase and nitrate content decrease against tumorous stem mustard, and the inorganic fertilizer type Ⅱ(19-7-9) follows. Single superphosphate is better than monoammonium phosphate in increasing the yield whilst poorer in decreasing its nitrate content,sulfate of potash is better than muriate of potash in increasing the yield while weaker in decreasing its nitrate content,and fused calcium magnesium phosphate shows little desired effects.

結(jié)果表明：有機無機型專用肥〔16-6-8-20〕對莖瘤芥增產(chǎn)和降低其硝酸鹽含量的作用最佳，其次為無機型專用肥Ⅱ(19-7-9)操我视频，過磷酸鈣對莖瘤芥增產(chǎn)效果優(yōu)于磷酸一銨91xxxxx在线，但降低其硝酸鹽含量不及磷酸一銨，硫酸鉀的增產(chǎn)作用優(yōu)于氯化鉀AV网站在线观看不卡无码，但氯化鉀降低硝酸鹽含量的效果較好aaa日欧美女，鈣鎂磷肥對其增產(chǎn)和降低硝酸鹽含量的效果均差。