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To reduce the content of heavy metals in vegetable and nitrate used for fertilizer and silicon compo 发明授权

2023-08-21 1150 316K 0

专利信息

申请日期 2025-07-10 申请号 JP2012535604
公开(公告)号 JP5374647B2 公开(公告)日 2013-12-25
公开国别 JP 申请人省市代码 全国
申请人 Guangdong Institute of soil ecological environment given512046464
简介 The present invention is related to the field of environmental protection, more specifically, to a foliage silicon fertilizer and a method for production of the fertilizer, which is a molybdenum-silica compound sol used for reducing heavy metal and nitrates in vegetables. The fertilizer, which is a molybdenum-silica compound sol, comprises 10-25 wt % silica, 0.05-5.5 wt % molybdenum ions. More preferably, the fertilize, which is a rare earth-molybdenum-silica compound sol, comprises 10-25 wt % silica, 0.05-5.5 wt % molybdenum ions and 0.1-7.5 wt % rare earth ions. By the combination of silica with molybdenum in the present invention, it is effective for preventing the absorption/accumulation of nitrates in vegetables. In addition, by the further combination with rare earth element, the prevention ability of the fertilizer from absorbing heavy metal and nitrates into vegetables is even enhanced. With a preparation method with normal pressure and relatively, low temperature, that is, with mild condition, simple process and high operability, large scale production of the present invention may be readily executed.


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