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已读[75] 发布: 2013/05/10 21:34:46
缺钼根瘤瘦小,抗逆力差,植株上部表现为典型的缺氮症状。措施:每亩用10~20克钼酸铵兑水50~60公斤喷施。 缺硼植株矮小,下部丛生,叶色暗绿,叶片皱缩,且增厚变脆...
已读[38] 发布: 2013/05/10 21:34:44
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[386] 发布: 2013/05/10 17:44:29
不提倡用长残效除草剂,如普施特、豆磺隆、虎畏、阔草清、广灭灵等。白浆土、盐碱土、砂壤土以及土壤水分较大的田块不宜使用嗪草酮、2,4-D丁酯或含此类成分...
已读[37] 发布: 2013/05/09 21:42:30
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: 2013/05/08 21:41:33
1、浓度喷施浓度适宜能力收到良好效果,浓渡过高不但无益反而有害。通常硼酸或硼砂0。05%―0。25%、钼酸铵0。02%―0。05%、硫酸铜0。01%―0。02%。如...
已读[38] 发布: 2013/05/08 21:41:32
由大豆蛋白质和钼酸铵生成的催化剂可将液态水催化转化成为氢气。该催化剂在酸性溶液中的使用寿命超过500小时,其性能优于铂等贵金属催化剂。...
已读[36] 发布: 2013/05/08 21:41:30
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[37] 发布: 2013/05/08 21:41:29
Nanowerk LLC To make the catalyst the team ground the soybeans into a powder, mixed the powder with ammonium molybdate in water, then dried and heated the samples in the presence of inert argon gas. "A subsequent high temperature treatment (carburization) ... and more »
已读[60] 发布: 2013/05/08 18:12:07
如果种植密度过大,长势过旺,可在封行时用多效唑30克兑水25公斤喷施茎叶,控制旺长。 5、适时收获:在大豆叶片还没有完全落光,95%豆荚转为成熟荚色,豆粒呈...
已读[37] 发布: 2013/05/07 20:03:56
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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