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已读[72] 发布: 2013/05/24 23:56:36
LiveScience.com It can be prepared from a powder made by the hydrogen reduction of ammonium molybdate or purified molybdic trioxide. Uses of molybdenum. Molybdenum is a valuable alloying agent, contributing to quenched and tempered steels' ability to harden and ...
已读[201] 发布: 2013/05/21 15:29:10
生理性苗枯病可喷施菌毒杀星+多元微肥进行防治;纹枯病可选用5%井岗霉素1000倍+20%三唑酮1000倍混合液、50%多菌灵500倍+20%三唑酮1000倍混合液、70%甲基托布...
已读[432] 发布: 2013/05/20 13:57:20
P)含量<7mg/kg时,亩施磷肥8公斤,7-14mg/kg,施6公斤,14-30mg/kg,施4公斤,30-40mg/kg,施2公斤,≥40mg/ kg,不施磷肥;土壤有效钾<70mg/kg,亩施钾肥6...
已读[35] 发布: 2013/05/16 21:06:34
中华人民共和国商务部网站... 德兴矿山新技术开发公司通过技术攻关,研制出国内首创技术,把原来在铜精矿中作为三废排放掉的钼和铼,经过焙烧和湿法冶炼,生产出市场上价值...
已读[36] 发布: 2013/05/16 21:06:08
目前国内最大最先进的黄金和有色金属加工生产基地,将使黄金生产由年产120吨增加到230吨,同时还能年产钼铁1.5万吨、钨钼酸铵1万吨和钨钼制品500吨,年经济效益超过...
已读[36] 发布: 2013/05/14 22:01:35
SelectScience.net (press release) A reaction mixture of ammonium molybdate , potassium antimony (IIl) tartrat and ascorbic acid is added to the sample for the quantitative determination of phosphate. Potassium hydrogen phosphate is used as standard solution. The quantitative analysis is ...
已读[35] 发布: 2013/05/13 21:56:17
SelectScience.net (press release) A reaction mixture of ammonium molybdate , potassium antimony (IIl) tartrat and ascorbic acid is added to the sample for the quantitative determination of phosphate. Potassium hydrogen phosphate is used as standard solution. The quantitative analysis is ...
已读[35] 发布: 2013/05/12 21:54:03
SelectScience.net (press release) A reaction mixture of ammonium molybdate , potassium antimony (IIl) tartrat and ascorbic acid is added to the sample for the quantitative determination of phosphate. Potassium hydrogen phosphate is used as standard solution. The quantitative analysis is ...
已读[822] 发布: 2013/05/12 15:32:55
编者按:近日,总局春耕生产“千人百场”科技服务领导小组来到九三管理局,他们深入... (九)除草剂使用 针对涝的年份要降低除草剂的剂量,建议采用两种或三种安全的...
已读[36] 发布: 2013/05/11 21:27:27
SelectScience.net (press release) A reaction mixture of ammonium molybdate , potassium antimony (IIl) tartrat and ascorbic acid is added to the sample for the quantitative determination of phosphate. Potassium hydrogen phosphate is used as standard solution. The quantitative analysis is ...
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