Plant growth material and its manufacturing method

Abstract

The present invention addresses the problem of providing: a plant growth material that is effective in growth, maturation, and yield increase of plants without additionally providing a fertilizer, that is highly safe, and that has an extremely faint odor; and a production method for the plant growth material.　The production method according to the present invention is for a plant growth material comprising: a porous foamed lightweight material obtained by sintering and foaming soda-lime glass; and a fertilizer containing chicken manure, cow manure, pig manure, or feces of other livestock. The fertilizer is mixed with the porous foamed lightweight material at a volume ratio of 10:90 to 90:10, and the mixture of the fertilizer and the porous foamed lightweight material is heated to a high temperature of 200-900°C so that the softened porous foamed lightweight material is caused to carry the fertilizer.

Description

[Technical Field]

[0001] The present invention relates to a plant growth material produced by mixing a porous foam lightweight material obtained by sintering and foaming soda lime glass with fertilizer made from chicken manure, cow manure, pig manure, or other livestock manure, and then heating the mixture at high temperatures, and a method for producing the same. [Background technology]

[0002] It has already been disclosed in Patent Document 1 that a porous foam lightweight material made by sintering and foaming soda-lime glass has the effect of promoting the growth of monocotyledonous plants and increasing the yield of their seeds or fruits, typically grains such as rice, wheat, and corn. According to Patent Document 1, it has been discovered that in the cultivation of grass plants, grain yields can be significantly increased by fertilizing the soil with a material made from fired and foamed waste glass. The material made from fired and foamed waste glass can stably dissolve and provide silicon in the form of metasilicate ions (SiO32-) over a long period of time, and a fertilizer containing a glassy foam fired body is disclosed, which has a significant effect on rice growth and increased grain yields.

[0003] However, although the vitreous foam sintered body described in Patent Document 1, when applied to soil, stably releases silicon into the soil in the form of metasilicate ions (SiO32-), and has a significant effect on rice growth and increased grain yields, it does not contain a large amount of nitrogen (N), phosphorus (P), or potassium (K), which are necessary for plant growth and development. Therefore, even grasses cannot grow and develop using only the vitreous foam sintered body described in Patent Document 1, and in addition to the vitreous foam sintered body, nitrogen (N), phosphorus (P), and potassium (K) must be applied as fertilizer.

[0004] Traditionally, chicken manure, cow manure, and other fertilizers rich in nitrogen (N), phosphorus (P), and potassium (K) have been used. Pig manure and other livestock waste are known. However, these fertilizers have a distinctive odor that lingers not only in the soil where they are applied but also in the surrounding area, causing problems by harming the surrounding environment. Furthermore, even after fertilization, if the soil is wet with rainwater, the odor becomes even stronger, which is a problem. [Prior art documents] [Patent documents]

[0005] [Patent Document 1] International Publication WO2020 / 129222 Summary of the Invention [Problem to be solved by the invention]

[0006] Therefore, in order to solve the above problems, the inventors of the present application have an object to provide a plant growth material that is effective in increasing plant growth, development, and yield without the need for additional fertilizer application, is highly safe, and has an extremely low odor, and a method for producing the same. [Means for solving the problem]

[0007] The plant growth material according to the present invention comprises: a porous foam lightweight material obtained by sintering and foaming soda lime glass; Fertilizer made from chicken manure, cow manure, pig manure, and other livestock waste, A plant growth material consisting of Fertilizer, The porous foam lightweight material is supported by the porous foam lightweight material that has been softened by high temperature heating. It is characterized by:

[0008] The plant growth material according to the present invention comprises: a porous foam lightweight material obtained by sintering and foaming soda lime glass; Fertilizer made from chicken manure, cow manure, pig manure, and other livestock waste, A plant growth material consisting of Fertilizer, The porous lightweight foam material is heated to a high temperature of 200 to 900°C and softened. It is characterized by:

[0009] The method for producing a plant growth material according to the present invention comprises: a porous foam lightweight material obtained by sintering and foaming soda lime glass; Fertilizer made from chicken manure, cow manure, pig manure, and other livestock waste, A method for producing a plant growth material comprising: Fertilizer is mixed with porous lightweight foam material in a volume ratio of 10-90:90-10. The porous foam lightweight material mixed with fertilizer is heated to high temperatures of 200-900°C. Fertilizer is supported on softened porous lightweight foam material It is characterized by: [Effects of the Invention]

[0010] (1) Over a long period of time, the fertilizer components are stably dissolved together with silicon in the form of metasilicate ions (SiO32-), which has an effective effect on plant growth, development, and increased yield. (2) Even if the mixture is poured into water or wetted with rainwater, the fertilizer made from the mixed and heated chicken manure, cow manure, pig manure, and other livestock manure will not run off, and the plant growth material itself, as well as the soil to which it is applied, will not emit the odor characteristic of fertilizer. (3) It is possible to provide a plant growth material and a method for producing the same that is effective in increasing plant growth, development, and yield without the need for additional fertilizer application, is highly safe, and has an extremely low odor. [Brief explanation of the drawings]

[0011] [Figure 1] A photograph of the plant growth material of the first example, in which porous foam lightweight material mixed with fertilizer was heated at high temperature. [Figure 2] A photograph of the plant growth material of the second example, in which porous foam lightweight material mixed with fertilizer was heated at high temperature. [Figure 3]A photograph of the plant growth material of the third example, in which porous foam lightweight material mixed with fertilizer was heated at high temperature. DETAILED DESCRIPTION OF THE INVENTION

[0012] Specific embodiments of the present invention will be described in detail with reference to the drawings.

[0013] The plant growth material of the present invention can be produced from a porous lightweight foam material obtained by sintering and foaming soda lime glass, and fertilizer made from chicken manure, cow manure, pig manure, or other livestock manure.

[0014] Soda lime glass can be made from waste glass that has outlived its useful life, such as plate glass, glass bottles, and window glass. A porous lightweight foam material can be obtained by sintering and foaming this soda-lime glass. For example, the soda-lime glass is crushed using a glass crusher, such as a ball mill, and a small amount of a foaming agent is added to the crushed glass powder, followed by firing at approximately 650°C to 980°C (preferably around 880°C).

[0015] The porous foam lightweight material of soda lime glass can be crushed into small pieces to make it easier to use as a plant growth medium and to make it easier to mix with fertilizers made from chicken manure, cow manure, pig manure, and other livestock waste, and the powder produced when crushed can also be used. In this embodiment, taking into consideration ease of use as a plant growth material, a porous foam lightweight material crushed to about 10 mm is used.

[0016] Fertilizers made from chicken manure, cow manure, pig manure, and other livestock waste contain nitrogen (N), phosphorus (P), and potassium (K), which are fertilizer components used for plant growth, and commonly available products can be used. For example, when using chicken manure, chicken manure obtained from a chicken farm is dried until the moisture content is 5 to 10%. In this case, the dried chicken manure can be used in the form of pellets, and cow manure, pig manure, and other livestock manure can also be used in the form of pellets in the same way. The moisture content does not necessarily have to be 5 to 10%, but it is sufficient if it is in a state that allows it to be easily mixed with the porous foam lightweight material of soda lime glass. Hereinafter, an example will be described in which chicken droppings are used as fertilizer and mixed with a porous lightweight foam material to produce a plant growth material.

[0017] Porous foam lightweight material crushed to about 10 mm in size and chicken manure are mixed in a volume ratio of 90-10:10-90. This volume ratio can be changed as appropriate depending on the crop to be fertilized. Chicken manure should be dried to a moisture content of 5-10%. For example, the chicken droppings are placed in a container containing a porous foam lightweight material, and stirred to an extent that the droppings are not unevenly distributed within the container, thereby mixing the chicken droppings with the porous foam lightweight material. The porous foam lightweight material mixed with chicken manure is heated at 200 to 900°C. The heating temperature and heating time can be changed depending on the fertilizer used (chicken manure, cow manure, pig manure, or other livestock manure). The container used when mixing the chicken droppings with the porous lightweight foam material preferably has holes for air to flow in and out and moisture to be discharged. When the container is heated, water and ammonia evaporate through the holes.

[0018] The purpose of the heating process in this embodiment is not to burn the chicken droppings mixed with the porous foam lightweight material until the odor disappears, but to evaporate the moisture and ammonia contained in the fertilizer made from chicken droppings, cow droppings, pig droppings, and other livestock droppings mixed with the porous foam lightweight material, burn off any foreign matter other than the fertilizer, and soften the porous foam lightweight material so that the mixed fertilizer can be absorbed into its interior, and the fertilizer becomes supported by the porous foam lightweight material. When the fertilizer is supported on the porous lightweight foam material, the fertilizer is in a state different from that in which the fertilizer is simply carbonized. For example, when chicken manure is carbonized, it becomes what is known as charcoal, and although the odor disappears, it loses strength and easily crumbles into pieces. However, porous lightweight foam material carrying fertilizer is strong, and the fertilizer carried by the porous lightweight foam material will not come off the material. As a result, the fertilizer components are stably dissolved over a long period of time, along with silicon in the form of metasilicate ions (SiO32-), which has an effective effect on plant growth, development, and increased yields. Therefore, the present invention is different from the production of a plant growth material by simply attaching fertilizer to the surface of a porous lightweight foam material or by heating it for that purpose. Therefore, in the present invention, the term "supported" is used to mean a state in which soda-lime glass, the raw material of the porous foam lightweight material, is burned in a softened state (above its softening point) while maintaining its porous properties without exceeding its melting point (without melting), and is integrated with the burned chicken manure.

[0019] The plant growth material of the present invention can be prepared as follows depending on the mixing ratio of the fertilizer and the porous lightweight foam material and the combustion temperature.

[0020] For example, the plant growth material shown in the photograph in Figure 1 is a first example in which fertilizer and porous foam lightweight material are mixed in a 50:50 ratio and burned at around 350°C. The water and ammonia contained in the fertilizer evaporate, and all foreign matter other than the fertilizer is burned and eliminated, but in many cases the fertilizer is not carried deep inside the porous lightweight foam material, and is instead found to be attached to the porous lightweight foam material.

[0021] For example, the plant growth material shown in the photograph in Figure 2 is a second example in which fertilizer and porous foam lightweight material were mixed in a 50:50 ratio and burned at around 450°C. The water and ammonia contained in the fertilizer evaporate, and all other foreign matter is burned and eliminated. In addition, some fertilizer is found to be carried inside the porous lightweight foam material, but this is not a common occurrence.

[0022] For example, the plant growth material shown in the photograph in Figure 3 is a third example in which fertilizer and porous foam lightweight material were mixed in a ratio of 70:30 and burned at around 650°C. The water and ammonia contained in the fertilizer evaporate, and all other foreign matter other than the fertilizer is burned and eliminated, and the fertilizer is now completely supported inside the porous lightweight foam material.

[0023] In other words, the plant growth material of the present invention is produced by mixing a porous foam lightweight material of soda lime glass with fertilizer (chicken manure, cow manure, pig manure, or other livestock manure) in a volume ratio of 90-10:10-90, and then heating it at high temperature, so that the fertilizer is supported on the porous foam lightweight material while maintaining its porous properties. Therefore, even if the plant growth material of the present invention is placed in water or wetted with rainwater, the fertilizer made from mixed and heated chicken manure, cow manure, pig manure, or other livestock manure will not flow out of the plant growth material, and the plant growth material itself, as well as the soil to which it is applied, will not emit the odor characteristic of fertilizer.

Claims

1. a porous foam lightweight material obtained by sintering and foaming soda lime glass; Fertilizer made from chicken manure, cow manure, pig manure, and other livestock waste, A method for producing a plant growth material comprising: The porous foam lightweight material mixed with fertilizer is heated to a high temperature of 200 to 900°C. Supported by softened porous foam lightweight material A method for producing a plant growth material, comprising:

2. a porous foam lightweight material obtained by sintering and foaming soda lime glass; Fertilizer made from chicken manure, cow manure, pig manure, and other livestock waste, A method for producing a plant growth material comprising: The fertilizer is mixed with the porous lightweight foam material in a volume ratio of 10-90:90-10, The porous foam lightweight material mixed with fertilizer is heated to a high temperature of 200 to 900°C. Fertilizer is supported on softened porous lightweight foam material A method for producing a plant growth material, comprising:

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