Utilization of Nano Rock Phosphate by Maize （Zea mays L.） Crop in a Vertisol of Central India

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.     

芭田“涉磷”,市场回应响亮

<正>资源高效利用助力肥料核心环节,业绩增长成亮点日前,芭田股份公司和贵州省瓮安县人民政府签订《聚磷酸等高新磷复肥及配套磷化工项目投资协议书》。根据协议,只要芭田股份支付700亩工业用地和100亩生活用地的征地款,就可在资源配置方面享有在瓮安已经投资建设大型磷化工项目企业同等的优惠政策。而今,芭田公司在矿权配置方面,已经具有优先开采权,并获得平均品位23%以上、储量在2亿吨以上的磷矿采矿权。芭田股份公司进军磷矿的举动,引起强烈反响。对于一个无论口碑和技术都不可比拟的复合肥企业,由于与下游对接市场的网络优势十分明显,其向上游涉足磷业矿产一事非同小可。但是,无论是农资界还是资本市场,对于芭田公司的这一举动,均表现出惊人的一致肯定。     

磷酸氢钙：政策调整价格走高

据了解,国土资源部已将磷矿资源列入2010年后不能满足国民经济发展需求的重要矿种之一。虽然国内政采限制磷矿石出口。但在草甘膦、磷肥等下游行业需求的推动下．     

抚仙湖流域磷矿开采废弃地恢复云南松群落的物种配置研究

通过对开矿区分布较广的云南松群落的结构特征及各物种在群落内的地位进行了分析。结果表明,该群落林内物种多样性丰富,生长良好,并进一步研究出磷矿废弃地恢复云南松群落的物种配置方案,以使恢复后的松云南群落结构合理、物种丰富、系统稳定,尽快恢复矿区的生态服务功能。     

中化磷钾肥

"中化"牌突尼斯磷酸二铵(18-46-0)纯进口,养分含量高,水溶磷含量高,溶解快,不含氯,适合各种作物及测土配肥使用。"美农"牌磷酸二铵(18-46-0)褐色,适合各种作物,选自贵州优质磷矿,养分含量高,溶解快,不含氯,适合测土配肥用。     

瓮福开采端帮矿石满足磷资源需求

<正>本报讯由于瓮福达州、紫金项目相继投产,瓮福集团今年矿石需求缺口增大。瓮福磷矿英坪露天矿已着手开采端帮地带埋藏的数十万吨优质磷矿石,以缓解当前矿石供应紧张局面。英坪露天矿Ⅱ号坑南端端帮地带,埋藏有10多万吨的优质磷矿石,因多种原因一直未组织开     

湖北三宁研制新型二元肥锁定国际市场

<正>本报讯近日,湖北三宁新研制出的总养分含量为48%、氮磷元素养分含量14:34的二元复合肥成功下线,各项质量分数均达到了出口的相应标准。湖北三宁凭借自身"省级技术研发中心"强大的自主研发能力,综合开发利用低品位磷矿,巧妙改造现有装置,深度利用自产原料,适应国际市场需求再一次推出了新型高品质肥料,为迎接6-9月二元复合肥7%低关税出口窗口期到来,做好了生产与销售的各项准备,将有效缓解国内用肥淡季到来时的巨大产销压力,为公司的连续生产和走向世界打开了通道。(李冬修方玉玲)     

百亿开磷之路

<正>"中国化学矿山排头兵"!这是开磷建矿30多年来共和国给予的最高褒奖。当时,洋水沟仿佛沉浸在节日的喜庆中,数万职工家属被这巨大的荣誉深深地鼓舞和激励着。这是继"三阳开泰"之后,开磷又一次声名远扬。"‘山沟里也能出马列主义’。从建矿初期开始,经过30年的艰苦创业,开磷人扎根矿山,开发矿业,锤炼出‘艰苦奋斗的创业精神、无私奉献的牺     

抚仙湖流域磷矿开采废弃地恢复华山松群落的物种配置研究

为使抚仙湖流域磷矿开采区恢复的植被结构合理,物种丰富,系统稳定,对研究区分布较广的华山松群落的结构特征及各物种在群落内的地位进行了分析.结果表明,华山松林群落结构完整,物种丰富,生长旺盛,是磷矿开采废弃地上植被恢复的理想林种,并制定出用华山松、滇石栎、小白花杜鹃、厚皮香、地石榴等华山松群落各层优势种,及当地耐贫瘠的乡土物种做磷矿开采废弃地华山松群落恢复的物种配置方案.