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<正>本报讯前不久,2013年技术创新暨成果表彰大会在云天化集团总部召开,云天化集团402.75万元对获得国家科技进步二等奖的《云南中低品位胶磷矿选矿技术产业化开发》等163项创新成果进行了表彰。表彰会上,集团副总经理胡均做了题为《实施创新驱动发展战略,推动集团产业转型升级》的报告。全面总结集团在强化技术创新工作统筹规划管理、完 相似文献
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华宁北部磷矿属于滇池抚仙湖成矿区宜良—华宁成矿带的一部分,为沉积型磷块岩矿床。资源量丰富,已探明多个矿床,规模达中型以上,本文在前人勘查资料基础上简述了华宁北部磷矿矿床地质特征,对控矿因素进行了分析,认为矿床的分布范围、矿体形态及规模主要受岩相古地理,地层岩性、构造控制。 相似文献
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<正>虽然在全球范围内,北美的磷矿储量并不算很大,但是北美一直在磷矿开采和磷肥生产领域处于世界领先地位。中国和摩洛哥一直是全球磷肥生产大国,但并没有限制到北美生产商在全球范围内的磷肥供应业务。2008年,北美磷肥年产量达3200万吨,依然是磷肥乃至整个化肥市场的重要供应方。美国磷肥生产情况以位于美国中北部明尼苏达州的美盛公司为主要力量,美国磷肥生产与加工业发展迅速。同时,作为全球第三大磷肥消费国,美国对本地磷酸盐的开采和加工 相似文献
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An attempt was made in the present investigation to utilize the vast deposit of rock phosphate (RP) of India by preparing nano RP using modem tool of nano-science and nano-technology for field application to maize crop (Zea mays L.). To evaluate the efficacy of different nano RP, a field experiment was conducted during kharif season (June to September) of 2012 at India Institute of Soil Science (IISS), Bhopal, taking maize as a test crop. The experiment consisted of five treatments (control, NK (100%), NPK (100%), NK (I00%) + 60 kg P205) as nano RP through Udaipur nano RP (34% P205) and Udaipur nano RP (31% P205) were tested in randomized block design with four replications. The results showed that the shelling percentage, 1,000 grain weight, grain and stover yield, etc., were significantly higher in the maize plant treated with Udaipur nano RP (34% P205) as compared to the control, which was being at par with single super phosphate (SSP) treated plants. The total P content and its uptake were higher (0.65% and 40.29 kg/ha) in SSP treated plant, which was closely followed by Udaipur nano RP 34% (0.63% and 38.29 kg/ha) over the control (0.60% and 27.82 kg/ha). The SSP treated plants had significantly highest apparent P recovery (47.98%) which was comparable to Udaipur nano RP (34% P205), where as the Udaipur nano RP (31% P205) had the lowest. The additional N and K uptake by the plant was also observed with application of P sources, which were ranged from 16.5 kg/ha to 37.2 kg/ha and 27.9 kg/ha to 64.7 kg/ha under different P treatments. These results showed that crop utilization of P from nano RP was at par with that of P from SSP while yield response to P from nano RP was marginally lower than to P from SSP but serve as a cheaper source. 相似文献