| abstract |
The present invention provides an iron-containing material for rice that can suppress sesame leaf blight and increase the yield of rice, while reducing the content of manganese, which is an expensive element compared to conventional manganese materials. . The content of CaO is 25% by mass or more and 34% by mass or less, the content of SiO 2 is 16% by mass or more and 22% by mass or less, the content of Fe is 13% by mass or more and 33% by mass or less, and the content of Mn An iron-containing material for rice having an amount of 7 to 22% by mass, an MgO content of 2 to 8% by mass, and a CaO / SiO 2 ratio of 1.2 to 1.8. [Selection figure] None |