TW201815288A - Weed control composition and weed control method having no toxicity and capable of being used as fertilizer after harvesting - Google Patents

Abstract

Known herbicidal compositions are highly toxic and harmful to crops, humans and the environment. The present invention provides a weed control composition that is non-toxic and can be used as fertilizer after harvesting. The weed control composition contains (A) gypsum, and (B) sand. The present invention also provides a weed control method, which includes adding water to the weed control composition and covering the soil where the weeds or plants are growing, and drying and solidifying the composition so as to control or inhibit the germination or growth of the weeds.

Description

   Composition for controlling weeds and method for controlling weeds   

The invention relates to a composition for controlling weeds, which comprises gypsum and sand.

According to the press, weeds not only consume nutrients in the soil, but also block sunlight, hinder the growth of plants or crops, reduce the yield or economic value of plants or crops, and even spread pathogens that are harmful to plants or crops. So, if Effective control of weeds or harmful plants will greatly increase crop yields. How to protect crops from weeds or harmful plants is a problem that the agricultural industry has been struggling to overcome and face.

At present, there are the following methods for the treatment of weeds or harmful plants: 1. Manual eradication methods, such as manual weeding or weeding with tools, all of which need to be completed by manpower. Except for the high cost of wages, the labor is difficult. Demand is also a major problem, and each crop needs to be weeded many times, and a large amount of labor and costs have caused a heavy burden on farmers. 2. Weeding methods using chemical agents. Although weeding methods with chemical agents are fast and effective, the harm to soil, human body, water source, and the environment is the greatest. Therefore, the toxicity of chemical agents to the environment must be considered by everyone. The problem. In addition, chemical agents are not comprehensive for weed control. In addition to weed absorption, they can also be extended to crops, thus adding to the aforementioned problems.

The invention relates to a composition for controlling weeds, in particular, a composition that is non-toxic, can be used as fertilizer after decultivation, and becomes a part of soil.

Therefore, the present invention provides a composition for controlling weeds, which includes gypsum and sand. The ideal mixing ratio of gypsum and sand is 1: 1.8 ~ 1: 0.8, preferably 1: 1. In terms of volume ratio, the particles of the sand are At 0.0625 ~ 2mm mm, or the sand contains particles with 0.004 ~ 0.0625 mm of sand, and mixed particles with 0.0625 ~ 2mm mm of sand, the ideal mixing ratio is 0.1: 1 ~ 1: 1, in volume ratio .

In another aspect, the present invention provides a method for controlling weeds, which comprises covering a place where weed plants grow with a composition containing gypsum and sand, with a cover thickness of 2 mm to 20 mm, preferably 5 mm to 10 mm, and humidifying with water. The composition is naturally dried to solidify the composition. The ideal mixing ratio of the gypsum to sand is 1: 1.8 to 1: 0.8, preferably 1: 1, in terms of volume ratio. In the method, the particles of the sand are 0.0625 ~ 2mm mm, or the sand contains sand with particles of 0.004 ~ 0.0625mm, and the mixed particles are sand of 0.0625 ~ 2mm mm. The ideal mixing ratio is 0.1: 1 ~ 1 : 1, in volume ratio. In the method, water is sprayed on the composition to moisten the composition. In the embodiment, a sprinkler is used to directly directly sprinkle the composition on the composition. Alternatively, water may be sprayed on the composition. This method is performed before or after germination of weeds. When applied before weeds germinate, the cured composition prevents weeds from germinating. In addition, after the weeds are germinated, the germinated weeds cannot be regrown by being covered and pressed by the cured composition.

In yet another aspect, the present invention provides a method for controlling weeds, comprising mixing a composition containing (A) gypsum and (B) sand with water and covering the place where weed plants grow, with a cover thickness of 2 mm to 20 mm. Preferably, the composition is 5 mm to 10 mm, and the composition is dried and cured. The ideal mixing ratio of (A) to (B) is 1: 1.8 to 1: 0.8, preferably 1: 1, in terms of volume ratio. The mixing ratio of water is 20 to 45%, preferably 30 to 35%, in terms of volume ratio. The particles of the sand are 0.0625 ~ 2mm mm, or the sand system is made by mixing sand with particles of 0.004 ~ 0.0625 mm and sand with particles of 0.0625 ~ 2 mm mm. The ideal mixing ratio is 0.1: 1 ~ 1 : 1, in volume ratio. The method is implemented before or after germination of the weeds, and the method covers the composition of the weed plants by artificial covering or mechanical spraying. After the composition is cured, weeds can be prevented from germinating. The germinated weeds cannot be regrown by being covered and pressed by the cured composition. The effect on controlling or inhibiting weeds or harmful plants is excellent.

The composition of the present invention can be applied to the weeds or plant growth areas to be removed. In addition, it can be applied before the emergence of the weeds or plants to be removed, and it is also possible when the grass just germinates, as long as the composition of the present invention can cover it.

The composition of the present invention is suitable for soil use, and the composition is covered on the surface of the soil, and the composition can be applied to agricultural fields, such as dry fields, orchards, and non-farm fields, such as fields, fallow fields, playgrounds, park green spaces, golf courses , Open space, woodland, factory land, railway side, road side, garden and pot plant.

The beneficial effects of the present invention:

1. Since the composition in this embodiment is cured after drying, the water permeability is good, and water or rainwater can penetrate into the soil to supply crop moisture. 2. The composition of the present invention can indeed prevent or inhibit the sprout or growth of weeds or harmful plants. The most important thing is that it is natural and non-toxic. It can be used as fertilizer and improve soil structure after cultivation. Soil conditioner. 3. The construction of the present invention is simple and can be performed once in a production period, which can greatly reduce manpower, save manpower costs, and has economic benefits. 4. Appropriate fertilizers or soil modifiers can be added to the present invention, and they can be used in the soil after being removed from cultivation or during the production period. 5. The composition of the present invention is applied to the surface of the soil to consolidate the soil, and thus can prevent the problem of soil loss caused by the erosion of rainwater.

Please refer to the following examples for detailed description, but the present invention is not limited to these specific embodiments.

Example 1: The present invention provides a composition for controlling weeds for controlling the growth of weeds. The composition includes (A) gypsum and (B) sand. The composition is used to cover the soil around the papaya crops. 10mm, and sprinkle water with a sprinkler to humidify the composition, and allow the composition to dry naturally and solidify. After 1 to 30 days, observe the growth of weeds and crops, where the composition is covered, Weeds and plants cannot grow (see Table 1), where NO means that weeds cannot germinate and grow, and where there is no covering composition, papaya and weeds grow normally, and water can penetrate the composition naturally when watered Into the soil to provide the crop with the required moisture.

 NO: indicates that weeds cannot germinate and grow

In the embodiment, the mixing ratio of (A) to (B) is 1: 1.8 ~ 1: 0.8, preferably a ratio of about 1: 1 is used in terms of volume ratio. Moisture is sufficient to humidify the composition. After the composition absorbs water and saturates, too much water will penetrate into the soil, so it does not hinder the reaction of gypsum in the composition.

In the examples, the gypsum is powdery, and non-toxic natural gypsum is used.

In the embodiment, the particle size of sand is defined as 0.0625 ~ 2mm mm, and the sand with particle size of 0.004 ~ 0.0625 mm belongs to the scope of mud.

In the embodiment, the composition of the sand particles has a better water permeability when the particle size is 0.0625 ~ 2mm, and the sand with a particle size of 0.004 ~ 0.0625 mm belongs to the mud. When the two kinds of sand with different particles are mixed, the water permeability of the composition can be adjusted. For example, the mixing ratio is 1: 0.1 to 1: 1. In terms of volume ratio, the larger the proportion of the particles, the better the water permeability. Regardless of the particle size of the sand used, it has an effect on controlling weeds. The difference is whether the water permeability is excellent.

In addition, in the embodiment, it can be applied before weeds germinate, so that weeds cannot germinate, or they can be applied after weeds germinate. The greater the thickness of the object, the embodiment is to seal the weeds with the composition and let the weeds die. However, if the weeds are too high, the thicker the composition and the larger the amount, the higher the cost. Therefore, it is recommended that the weeds be applied when the weeds are not germinated or shortly after germination. The above application does not require any chemicals.

In the example, the sprouts seeds were also sprinkled on the soil, and the sprouts were used as weeds or unwanted plants to test the species. With the strong penetration of the sprouts when the seeds sprout, it was tested whether the composition can resist the sprouts Sprout. After 1 to 30 days of observation, weeds and bean sprouts germinated normally on soils not covered by the composition, but weeds and bean sprouts were unable to germinate and grow where the seeds were covered by the composition.

In the embodiment, the composition in the embodiment can be spread around the crop after planting or sowing, or the planting holes can be reserved after the composition in each embodiment, and then planting or sowing .

Example 2: The present invention provides a composition for controlling weeds for controlling the growth of weeds, which comprises mixing the composition of (A) gypsum and (B) sand with water and covering the soil around the papaya crop with a composition of The thickness of the material is about 10mm, and the composition is allowed to naturally dry and solidify. After 1 to 30 days, observe the growth of weeds and crops (see Table 2), where weeds and plants cannot grow in the place covered with the composition Where there is no covering composition, papaya and weeds grow normally, and when watering, water can naturally penetrate the composition into the soil to provide the required moisture for the crop.

 NO: indicates that weeds cannot germinate and grow

The application method can be sprayed by a spraying machine, which is suitable for application in a large area, or artificial coating, which is suitable for application in a small area. As for the ratio of gypsum to sand, it is about 1: 1.8 to 1: 0.8. In terms of volume ratio, it is better to use a ratio of about 1: 1, and the mixing ratio of water is 20 to 45%, preferably 30 to 35%. In volume ratio. If artificial coating is used, the proportion of water can be lower, and if machine spraying is used, the proportion of water is higher. Although the ideal ratio of water is 20 to 45%, when the composition exceeds this ratio, after the composition absorbs water and saturates, excess water will penetrate into the soil, so it will not affect the reaction of gypsum in the composition. Therefore, the proportion of water may be higher than the aforementioned proportion.

In the examples, the gypsum is powdery, and non-toxic natural gypsum is used.

In the embodiment, the particle size of sand is defined as 0.0625 ~ 2mm mm, and the sand with particle size of 0.004 ~ 0.0625 mm belongs to the scope of mud.

In the embodiment, the composition of the sand particles has a better water permeability when the particle size is 0.0625 ~ 2mm, and the sand with a particle size of 0.004 ~ 0.0625 mm belongs to the mud. When the two kinds of sand with different particles are mixed, the water permeability of the composition can be adjusted. For example, the mixing ratio is 1: 0.1 to 1: 1, based on volume ratio. Among them, the larger the particle size, the better the water permeability. Regardless of the particle size of the sand used, it has an effect on controlling weeds. The difference is whether the water permeability is excellent.

In addition, in the embodiment, it can be applied before weeds germinate, so that weeds cannot germinate, or they can be applied after weeds germinate. The greater the thickness of the object, the embodiment is to seal the weeds with the composition and let the weeds die. However, if the weeds are too high, the thicker the composition and the larger the amount, the higher the cost. Therefore, it is recommended that the weeds be applied when the weeds are not germinated or shortly after germination. The above application does not require any chemicals.

In the example, the sprouts seeds were also sprinkled on the soil, and the sprouts were used as weeds or unwanted plants to test the species. With the strong penetration of the sprouts when the seeds sprout, it was tested whether the composition can resist the sprouts Sprout. After 1 to 30 days of observation, weeds and bean sprouts germinated normally on soils not covered by the composition, but weeds and bean sprouts were unable to germinate and grow where the seeds were covered by the composition.

In the embodiment, the composition in the embodiment can be spread around the crop after planting or sowing, or the planting holes can be reserved after the composition in each embodiment, and then planting or sowing .

The above are only the preferred embodiments of the present invention. When the scope of implementation of the present invention cannot be limited by this, that is, any simple equivalent changes and modifications made in accordance with the scope of the patent application and the description of the invention should still be used. It is within the scope of the invention patent.

Claims (15)

    A composition for controlling weeds, comprising (A) gypsum and (B) sand.         The composition for controlling weeds as described in item 1 of the scope of patent application, wherein the mixing ratio of (A) to (B) is 1: 1.8 to 1: 0.8, in terms of volume ratio.         The composition for controlling weeds according to item 1 or item 2 of the scope of patent application, wherein the particles of the sand are 0.0625-2 mm mm.         The composition for controlling weeds according to item 1 or item 2 of the scope of patent application, wherein the sand contains sand having a particle size of 0.004 to 0.0625 mm, and mixed sand having a particle size of 0.0625 to 2 mm mm. It is 0.1: 1 ~ 1: 1 in volume ratio.         A method for controlling weeds, comprising covering a place where a weed plant grows with the composition described in claims 1 to 4 of the scope of patent application, and humidifying the composition with water.         The method for controlling weeds according to item 5 of the scope of patent application, wherein the method is to spray the composition with water to moisten the composition.         The method for controlling weeds according to item 5 of the scope of patent application, wherein the method is before or after germination of the weeds.         The method for controlling weeds according to item 5 of the scope of patent application, wherein the method uses natural drying of the composition.         The method for controlling weeds according to item 5 of the scope of patent application, wherein the composition covers a thickness of 2 mm to 20 mm.         A method for controlling weeds, comprising adding water to the composition described in claims 1 to 4 of the scope of patent application, and covering the place where weed plants grow.         The method for controlling weeds according to item 10 of the scope of patent application, wherein the method is before or after germination of the weeds.         The method for controlling weeds as described in item 10 of the scope of patent application, wherein the composition is covered on the place where the weed plants are grown by artificial coating or mechanical spraying.         The method for controlling weeds according to item 10 of the scope of patent application, wherein the method uses natural drying of the composition.         The method for controlling weeds according to item 10 of the scope of patent application, wherein the composition covers a thickness of 2 mm to 20 mm.         The method for controlling weeds as described in item 10 of the scope of patent application, wherein the mixing ratio of water is 20-45%, based on the volume ratio.