Application of magnesium oxide in agriculture

Application of magnesium oxide in agriculture

Light burned magnesia can be used not only in the production of refractory materials and building materials, but also in the agricultural field, including the production of animal feed and agricultural fertilizer.

The main purpose of magnesium oxide in feed is to balance the deficiency of "magnesium element" in feed and prevent the occurrence of magnesium deficiency. Feed grade magnesium oxide is to meet the requirements of feed related standards, first of all the requirements of hygienic standards, and secondly, heavy metals and arsenic are lower than the relevant standards for "feed and food".

Feed grade magnesium oxide is an important animal feed additive, especially for ruminants. The price of desulfurized magnesium oxide is mainly used to supplement magnesium nutrients in animals.

Feed grade magnesium oxide is mainly used as mineral element additive in premix feed.

As an inorganic magnesium source widely used in ruminant feed, magnesium oxide is a alkalizing agent, which can improve the intake of blood metabolites by the mammary gland. Cows and sheep are ruminants (herbivores), and the main digestion characteristics are four stomachs. The diet is supplemented with sodium bicarbonate and magnesium oxide in a proportion of 2:1, which can effectively regulate the pH value of rumen juice, regulate rumen fermentation, and increase the absorption of breast milk synthesis precursors, It can also prevent nervous system dysfunction caused by magnesium deficiency by increasing milk yield and milk fat rate.

Magnesium oxide plays a very important role in promoting the synthesis of chlorophyll and improving crop quality. Desulfurization of magnesium oxide can also affect the growth process of plants, especially for acidified soil.

The content of fertilizer grade magnesium oxide is in the range of 70% - 85%, with low requirements for activity. It can improve the soil and increase the content of magnesium in the soil.

Fertilizer grade magnesium oxide can be used as magnesium supply together with other compound fertilizers. Magnesium is an essential medium nutrient for plants, and magnesium is a component of chlorophyll. Therefore, it is widely used in various vegetables, fruits or other plants, such as rice, wheat, rye, potato, grape, tobacco, sugarcane, sugar beet, etc. Magnesium fertilizer can improve crop yield and crop quality.

Magnesia is mainly composed of 41% - 47% magnesite ore, which is calcined in a light burning reverberatory kiln. The primary content of magnesium oxide is 65%, 70%, 75%, 80%, 85% and 90%. The primary products of magnesium oxide are fireproof boards, feeds, fertilizers, well covers, insulation boards, art fences, magnesium sulfate, door core boards, composite insulation boards, firecracker fixing agents, chicken houses, inorganic glass, magnesite tiles, grinding wheel molds, artificial marble, power plant boiler flue gas desulfurization, steel plant boiler desulfurization, sewage treatment, ventilation pipes Light partition boards, vegetable greenhouses, building materials and abrasives, ceramic tile base powder, steel slag, paper making, biogas tanks and other aspiring raw materials.

Haicheng magnesia is mainly composed of magnesite ore with a content of more than 46%. The magnesite ore is calcined in a high temperature shaft kiln and heated to 1400-1800 ℃ when Mg (CO3) is completely decomposed to produce periclase, which becomes hard reddish brown reburning magnesium with high fire resistance. It is an ideal raw material for the production of unshaped refractory materials, and the products are used for steel making open hearth furnace, electric furnace bottom and ramming furnace lining. It is made of natural super grade magnesite ore after flotation purification, light burning, fine grinding, ball pressing and ultra-high temperature oil shaft kiln calcination. It is a high-quality raw material for brick making and indefinite refractory. It is made of light burned magnesia with 97% MgO as raw material by pressing ball and calcining in high temperature shaft kiln. With good sintering degree and dense crystal, the product is a high-quality raw material for producing medium grade magnesia refractory products, and can also be used to manufacture various magnesia bricks, magnesia alumina bricks, ramming materials, furnace mending materials, etc. Those with more impurities are used to pave the bottom of the steelmaking furnace.