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Ferroalloys

Ferroalloys Business

With our two major production bases in Tokushima and Kashima, we harness our proven technology and time-tested techniques to provide our customers with stable supplies of high-quality manganese.
Our portfolio includes not only ferromanganese but also other ferroalloy products. These quality products have been well received by our customers, sustaining Nippon Denko’s reputation as a leading manufacturer of ferroalloys.
In addition our Tokushima and Hidaka Plants are producing diverse fertilizers indispensable for soil improvement, by making use of the soil-improving properties of by-products obtained from ferroalloy production.

Products

Keikaru fertilizer (calcium silicate)

Using calcium silicate as fertilizer helps to make rice plants stronger and more resistant to blast infection and other pests. Being alkaline in nature, it is also widely used to neutralize acidic soil.

Features

  1. 1.Helps reduce damage caused by wilting or blast infection by strengthening the stalks and leaves of rice plants
  2. 2.Prevents root rot and autumn defoliation in rice plants by making their roots healthy and strong
  3. 3.Helps build stronger roots that are resilient to damage caused by extreme weather conditions including unusually cold weather
  4. 4.Improves the quality of harvested rice by increasing the thousand-kernel weight of grains and the percentage of ripened grains
  5. 5. Improves the taste and flavor of rice

Maidotsukuri fertilizer

Maidotsukuri is a blend of four kinds of fertilizer: calcium silicate, fused magnesium phosphate, ferruginous material and potassium silicate.

Features

  1. 1.Helps to improve the quality of rice and ensure stable rice production; reduces the fertilization workload as the required application amount is lower than for other fertilizers

Effects

Keikaru
Calcium Silicate
  • ・Helps prevent wilting in rice plants by strengthening leaves and roots and thus reduces damage from blast and Cochliobolus miyabeanus infections
  • ・Increases the percentage of ripened grains by making leaves stand up straight so as to receive more sunlight
  • ・Makes rice taste better and more flavorful
Fused magnesium phosphate
  • ・Improves fertilizer retention capacity of soils
  • ・Produces comprehensive fertilizing effects by causing micronutrients such as manganese and boron to interact with phosphate and other fertilizer components
  • ・Helps plants absorb more silicate via roots that have grown stronger and healthier with phosphate
Ferruginous material
  • ・Improves soil quality, especially of rice paddies suffering from autumn defoliation, as iron oxide stimulates biological activity in soils and helps rice plants absorb more nutrients
  • ・Helps prevent root rot

Tetsuminori 30
(Slag silicate fertilizer with ferruginous material)

Tetsuminori 30 is a granular fertilizer made by blending uniformly ferruginous material into calcium silicate in the ratio of 30:70.
Features

Features

  1. 1.Especially effective for preventing rice plant defoliation in autumn as iron activates the plant’s root system and promotes absorption of nutrients
  2. 2.Helps prevent wilting in rice plants by strengthening leaves and stalks and thus reduces damage from blast and Cochliobolus miyabeanus infections
  3. 3.Increases the percentage of ripened grains by making leaves stand up straight so as to receive more sunlight

Maitaro

Maitaro is an ideal fertilizer for building soil as it provides soil with three different kinds of fertilizers in one go.

Features

  1. 1.Helps improve the quality of rice and ensure stable rice production by making soil healthier
  2. 2.Helps prevent rice plants from wilting and thus makes them more resistant to blast infection and improves the percentage of ripened grains
  3. 3. Prevents autumn defoliation in rice plants as iron activates the plant’s root system
  4. 4.Helps prevent soil acidification and promotes plant growth thanks to components such as phosphate, silicate, iron, lime, manganese and boron, all of which are indispensable to the growth of plants and are included in appropriate proportions
  5. 5.Promotes decay of raw rice straw and other materials used as topdressing for rice fields after harvest to enhance their manuring effect

Tsubu-jo Tetsu Keikaru(Granular ferrous calcium silicate)

Iron revitalizes roots to make the plants healthier and stronger

Features

  1. 1.A synthetic granular fertilizer produced by blending finely pulverized hematite (boosting agent) into silicomanganese slag in the ratio of 12–20:80.
  2. 2.May slow the otherwise rapid progression of the oxidation-reduction process in a flooded rice field
  3. 3.Effective for promoting decomposition of rice straw even when applied in autumn
  4. 4.May improve the quality and yield of harvested rice by activating root system to promote the early growth of rice plants
  5. 5.May reduce the occurrence of pest infections, especially sheath brown rot disease and blast infection, and make rice plants less likely to wilt by strengthening leaves and stalks

Yume-silica

Enhance calcium silicate delivery!
Cut down on cost and labor!

Features

  1. 1.Produced by finely pulverizing silicomanganese slag and chemically treating it with phosphate
  2. 2.Characterized by its substantially increased elution amount of available phosphate that is easily absorbed by plants
  3. 3.May improve the quality and yield of harvested rice by increasing plants’ silicate absorption capacity
  4. 4.May make plants more resistant to pest infections, especially sheath brown rot disease and blast infection, and less likely to wilt
  5. 5.Effective for promoting decomposition of rice straw even when applied in autumn