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WO2020136828A1 - Inhibiteur de la croissance de plantes, corps moulé en résine pour l'inhibition de la croissance de plantes, procédé d'inhibition de la croissance de plantes et sol - Google Patents

Inhibiteur de la croissance de plantes, corps moulé en résine pour l'inhibition de la croissance de plantes, procédé d'inhibition de la croissance de plantes et sol Download PDF

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Publication number
WO2020136828A1
WO2020136828A1 PCT/JP2018/048243 JP2018048243W WO2020136828A1 WO 2020136828 A1 WO2020136828 A1 WO 2020136828A1 JP 2018048243 W JP2018048243 W JP 2018048243W WO 2020136828 A1 WO2020136828 A1 WO 2020136828A1
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WO
WIPO (PCT)
Prior art keywords
plant growth
growth inhibitor
fatty acid
inhibitor according
resin
Prior art date
Legal status (The legal status is an assumption and is not a legal conclusion. Google has not performed a legal analysis and makes no representation as to the accuracy of the status listed.)
Ceased
Application number
PCT/JP2018/048243
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English (en)
Japanese (ja)
Inventor
綾 池田
弘 横田
裕幸 宮田
Current Assignee (The listed assignees may be inaccurate. Google has not performed a legal analysis and makes no representation or warranty as to the accuracy of the list.)
Resonac Corp
Original Assignee
Hitachi Chemical Co Ltd
Priority date (The priority date is an assumption and is not a legal conclusion. Google has not performed a legal analysis and makes no representation as to the accuracy of the date listed.)
Filing date
Publication date
Application filed by Hitachi Chemical Co Ltd filed Critical Hitachi Chemical Co Ltd
Priority to PCT/JP2018/048243 priority Critical patent/WO2020136828A1/fr
Priority to JP2020562238A priority patent/JP7637508B2/ja
Publication of WO2020136828A1 publication Critical patent/WO2020136828A1/fr
Anticipated expiration legal-status Critical
Ceased legal-status Critical Current

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Classifications

    • A—HUMAN NECESSITIES
    • A01—AGRICULTURE; FORESTRY; ANIMAL HUSBANDRY; HUNTING; TRAPPING; FISHING
    • A01N—PRESERVATION OF BODIES OF HUMANS OR ANIMALS OR PLANTS OR PARTS THEREOF; BIOCIDES, e.g. AS DISINFECTANTS, AS PESTICIDES OR AS HERBICIDES; PEST REPELLANTS OR ATTRACTANTS; PLANT GROWTH REGULATORS
    • A01N31/00—Biocides, pest repellants or attractants, or plant growth regulators containing organic oxygen or sulfur compounds
    • A01N31/02—Acyclic compounds
    • A—HUMAN NECESSITIES
    • A01—AGRICULTURE; FORESTRY; ANIMAL HUSBANDRY; HUNTING; TRAPPING; FISHING
    • A01N—PRESERVATION OF BODIES OF HUMANS OR ANIMALS OR PLANTS OR PARTS THEREOF; BIOCIDES, e.g. AS DISINFECTANTS, AS PESTICIDES OR AS HERBICIDES; PEST REPELLANTS OR ATTRACTANTS; PLANT GROWTH REGULATORS
    • A01N37/00—Biocides, pest repellants or attractants, or plant growth regulators containing organic compounds containing a carbon atom having three bonds to hetero atoms with at the most two bonds to halogen, e.g. carboxylic acids
    • A01N37/06—Unsaturated carboxylic acids or thio analogues thereof; Derivatives thereof

Definitions

  • the present invention relates to a plant growth inhibitor, a resin molding for plant growth suppression, a method for suppressing plant growth, and soil.
  • a herbicide using glyphosate As a herbicide, a herbicide using glyphosate is generally known (for example, Patent Document 1), but since such a herbicide removes weeds, the herbicide is harmful to the natural environment. Is concerned. Therefore, herbicides are strongly required not only to reduce the burden of time and cost required for weeding work but also to reduce the adverse effects on the natural environment due to weeding work.
  • an object of the present invention is to provide a plant growth inhibitor capable of suppressing plant growth and being gentle to nature, a resin molded product for plant growth suppression, and a method for suppressing plant growth.
  • one aspect of the present invention is a plant growth inhibitor containing at least one selected from the group consisting of triesters of carboxylic acid and glycerin, glycerin and sorbitol. This growth inhibitor does not kill the plants, but only suppresses the growth of the plants, and can reduce adverse effects on nature.
  • Another aspect of the present invention is a resin-molded product for suppressing plant growth, which contains the above-mentioned growth inhibitor and a resin.
  • Another aspect of the present invention is a method for suppressing plant growth, which comprises applying the above-mentioned resin molding to soil.
  • Another aspect of the present invention is a soil containing the resin molding of the above plant.
  • a plant growth inhibitor capable of suppressing plant growth and being naturally friendly, a resin molded product for plant growth suppression, and a method for suppressing plant growth.
  • FIG. 3 is a perspective view showing a granular growth inhibitor in one embodiment. It is a perspective view showing a sheet-shaped growth inhibitor in one embodiment.
  • the plant growth inhibitor according to one embodiment is a triester of carboxylic acid and glycerin (hereinafter, also simply referred to as “triester”), glycerin and sorbitol. It contains at least one selected from the group consisting of
  • the carboxylic acid constituting the triester may be, for example, a fatty acid.
  • the fatty acid may include saturated fatty acid and may include unsaturated fatty acid.
  • the fatty acid contains one or more selected from the group consisting of saturated fatty acids and unsaturated fatty acids. If the fatty acid comprises more than one of these fatty acids, the fatty acid may include both saturated and unsaturated fatty acids.
  • the carbon number of the fatty acid may be, for example, 12 or more, 14 or more, and 16 or more.
  • the carbon number of the fatty acid may be 30 or less, 25 or less, and 18 or less.
  • the carbon number of the fatty acid may be 12 to 30, 12 to 25, 12 to 18, 14 to 30, 14 to 25, 14 to 18, 16 to 30, 16 to 25, or 16 to 18, preferably It is 12 to 30, more preferably 14 to 25, and particularly preferably 16 to 18.
  • the fatty acid having 16 to 18 carbon atoms may be linoleic acid, oleic acid, palmitic acid, linolenic acid ( ⁇ -linolenic acid or ⁇ -linolenic acid), stearic acid and the like.
  • the fatty acid preferably contains at least one selected from the group consisting of linoleic acid, oleic acid, palmitic acid, linolenic acid and stearic acid, and all of linoleic acid, oleic acid, palmitic acid, linolenic acid and stearic acid. May be included.
  • a triester composed of these fatty acids is contained in, for example, soybean oil. Therefore, the growth inhibitor may include soybean oil.
  • the growth inhibitor may contain at least two kinds of glycerin, sorbitol and triester. Such combinations include glycerin and sorbitol, glycerin and triesters, sorbitol and triesters, and glycerin, sorbitol and triesters.
  • the growth inhibitor may consist of at least one active ingredient (growth inhibitor) selected from the group consisting of triester, glycerin and sorbitol, or may further contain other ingredients in addition to the active ingredient. Good.
  • growth inhibitor active ingredient
  • the content of the growth inhibitor may be, for example, 0.7 mass% or more, and 1.0 mass% or more, based on the total amount of the growth inhibitor. You can
  • the growth inhibitor may be solid or liquid at 23°C.
  • the growth inhibitor may further contain water or a predetermined solvent.
  • the growth inhibitor is preferably a solid from the viewpoint that the growth inhibitor can be prevented from flowing out from the predetermined place when the growth inhibitor is applied to the predetermined place.
  • the shape of the growth inhibitor is not particularly limited.
  • Another embodiment of the present invention may be a resin molded product for plant growth suppression, which contains the above-described growth suppressor and a resin.
  • the shape of the resin molded body is not particularly limited.
  • FIG. 1 is a perspective view showing a resin molded body according to one embodiment.
  • the resin molded body 1 according to one embodiment is formed in a pile shape.
  • the resin molded body 1 includes, for example, a substantially disk-shaped pile head 2 and an elongated pile main body 3 extending from one surface of the pile head 2 in a direction substantially perpendicular to the surface.
  • the cross-sectional shape of the pile main body 3 may be, for example, a cross shape. Since the resin molded body 1 is molded in such a shape, it can be inserted into the soil 5 as shown in FIG. 1(b).
  • the tip of the pile main body 3 (the end opposite to the pile head 2) may have a pointed shape so that the pile body 3 can be easily inserted into the soil 5.
  • the diameter (length in the lateral direction of the resin molded body 1) d1 of the pile head 2 may be, for example, 2.0 to 4.0 cm.
  • the length d2 in the longitudinal direction of the resin molded body 1 may be, for example, 5.0 to 15.0 cm.
  • the content of the growth inhibitor may be, for example, 0.7% by mass or more, and may be 1.0% by mass or more, based on the total amount of the resin molded product.
  • the resin may contain a thermoplastic resin, a thermosetting resin, or both of them.
  • the resin preferably contains a thermoplastic resin from the viewpoint of excellent moldability.
  • the thermoplastic resin may contain a thermoplastic resin having biodegradability, may contain a thermoplastic resin having no biodegradability, or may contain both of them.
  • the thermoplastic resin preferably contains a biodegradable thermoplastic resin from the viewpoint that the plant growth suppressing effect is more continuously exhibited (excellent in sustained release).
  • thermoplastic resin examples include aliphatic polyester, polyvinyl alcohol, polyalkylene glycol and the like.
  • the content of the resin is 10 mass% or more, 60 mass% or more, 70 mass% or more, 80 mass% or more, 90 mass% or more, 95 mass% or more, or 98 mass% or more based on the total amount of the resin molded body. May be
  • the content of the resin may be, for example, 10% by mass or more, 60% by mass or more, and 70% by mass based on the total amount of the resin molded product. It may be the above.
  • the content of the resin may be, for example, 95% by mass or more, and may be 98% by mass or more, based on the total amount of the resin molding.
  • the content of the thermoplastic resin is 10 mass% or more, 60 mass% or more, 70 mass% or more, 80 mass% or more, 90 mass% or more, 95 mass% or more, or 98 mass% based on the total amount of the resin molded body. % Or more.
  • the content of the thermoplastic resin may be, for example, 60% by mass or more, and may be 70% by mass or more, based on the total amount of the resin molded product.
  • the content of the thermoplastic resin may be, for example, 95% by mass or more, and may be 98% by mass or more, based on the total amount of the resin molding.
  • Examples of the aliphatic polyester include polylactic acid, poly(3-hydroxybutyric acid), polybutylene succinate, polybutylene adipate, polyethylene succinate, polyethylene adipate, polypropylene succinate, polypropylene adipate, polyhexylene succinate and polyhexene.
  • Xylene adipate polyhydroxybutyrate, copolymer of polybutylene succinate and polybutylene adipate, copolymer of polybutylene succinate and polycarbonate, polycaprolactone, polyhydroxybutyric acid, polyhydroxyvaleric acid, polybutylene succinate, Examples thereof include polybutylene adipate, polymalic acid, polyglycolic acid, polysuccinic acid ester, polyoxalic acid ester, butylene polydiglycolic acid, and polydioxanone.
  • polyalkylene glycol examples include methylene glycol, ethylene glycol, propylene glycol, diethylene glycol and the like.
  • thermoplastic resin having no biodegradability examples include polyolefin, polyvinyl chloride, polyvinylidene chloride, polystyrene, polyvinyl acetate and the like.
  • polyolefin examples include polyethylene, polypropylene, polymethylpentene, polybutene, polybutadiene, polystyrene and the like.
  • the polyolefin may be a homopolymer or copolymer of ⁇ -olefin such as polyethylene or polypropylene, or a copolymer of ⁇ -olefin and another comonomer.
  • thermoplastic resin does not have biodegradability
  • biodegradability can be imparted by using it together with an additive or the like that promotes lowering of the molecular weight of the thermoplastic resin.
  • polyolefins including homopolymers or copolymers of ⁇ -olefins such as polyethylene and polypropylene, or copolymers of ⁇ -olefins with other comonomers are metal salts, metal oxides and metals.
  • a metal compound containing at least one selected from the group consisting of hydroxides biodegradability is imparted.
  • thermoplastic resin having biodegradability even a thermoplastic resin that does not have biodegradability by itself is defined as a thermoplastic resin having biodegradability, if the biodegradability is imparted to the resin by an additive that promotes lower molecular weight.
  • a resin molded article containing a thermoplastic resin having biodegradability in one embodiment, contains a thermoplastic resin that does not have biodegradability by itself, and an additive that promotes a lower molecular weight of the thermoplastic resin.
  • the above-mentioned polyolefin and a metal compound containing at least one selected from the group consisting of metal salts, metal oxides, and metal hydroxides are contained.
  • the resin molded body 1 may further contain a natural polymer compound.
  • natural polymer compounds include polysaccharides.
  • the natural polymer compound one kind may be used alone, or two or more kinds may be used in combination.
  • the polysaccharides include cellulose, starch, chitosan, dextran, cellulose acetate, starch modified resin, cellulose modified resin and the like.
  • the resin molded body 1 may further contain a binder.
  • the binder may be, for example, a food residue treatment product.
  • the processed food residue include food residues discharged from homes, or food processing waste, fish ilium, leftover food, expired foods discharged from food processing plants, supermarkets, restaurants, convenience stores, hotels, etc.
  • Compost made from organic wastes such as, for example, is fermented and decomposed by the action of microorganisms and the salt concentration is adjusted.
  • the resin molded product 1 described above contains a plant growth inhibitor, it is preferably used as a resin molded product for plant growth inhibition.
  • the resin molded body 1 is applied to the soil 5 by being inserted so that part or all of the pile main body 3 is embedded in the soil 5. Thereby, even if it rains on the soil 5, for example, the resin molded body 1 can be suitably held at a desired place on the soil 5.
  • the pile-shaped resin molded body 1 is molded by, for example, injection molding.
  • injection molding for example, a raw material containing a growth inhibitor and a resin is heated to a temperature at which the resin softens, the heated raw material is poured into a mold, and the resin is cured by cooling for a certain period of time.
  • FIG. 2 is a perspective view showing a resin molded body according to another embodiment.
  • a resin molded body 11 according to another embodiment is molded in a granular shape.
  • the resin molded body 11 may be, for example, an elliptic spherical shape as shown in FIG. 2, and may have another fixed shape such as a spherical shape, a cylindrical shape, an elliptic cylindrical shape, or an irregular shape. Since the resin molded body 11 is molded in such a shape, it can be sprayed on the soil 15 as shown in FIG.
  • the maximum length d3 of the resin molded body 11 may be, for example, 0.5 to 5.0 mm.
  • This resin molded body 11 is also suitably used as a resin molded body for suppressing the growth of plants, and is applied to the soil 15 by being sprayed on the soil 15, as shown in FIG.
  • the resin molded body 11 can also be suitably held in a desired place on the soil 15 even when the soil 15 is rained, for example.
  • the granular resin molded body 11 is molded by, for example, resin pellet granulation.
  • resin pellet granulation for example, a raw material containing a growth inhibitor and a resin extruded from an extruder is granulated into pellets while cooling with cooling water or after cooling.
  • FIG. 3 is a perspective view showing a resin molded body according to another embodiment.
  • a resin molded body 21 according to another embodiment is molded into a sheet. Since the resin molded body 21 is molded in such a shape, it can be laid on the soil 25 as shown in FIG.
  • the resin molded body 21 has, for example, a substantially rectangular planar shape.
  • the length of one side of the quadrangle (maximum length in the main surface direction of the resin molded body 21) d4 and d5 may be, for example, 0.5 to 50 m.
  • the thickness d6 of the resin molded body 21 may be, for example, 7 to 100 ⁇ m.
  • This resin molded body 21 is also suitably used as a resin molded body for suppressing plant growth, and as shown in FIG. 3( b ), the soil 25 is laid so that one main surface is in contact with the soil 25. Applied to.
  • the resin molded body 21 may be partially or wholly embedded in the soil 25.
  • This resin molded body 21 can also be suitably held at a desired place on the soil 25, for example, even when the soil 25 is rained.
  • the sheet-shaped resin molded body may have voids (holes) penetrating in the sheet thickness direction, irregularities in the sheet thickness direction, and the like.
  • the sheet-shaped resin molding may be, for example, a net having a mesh structure.
  • the sheet-shaped resin molded body 21 is molded by, for example, extrusion molding.
  • extrusion molding for example, a raw material containing a growth inhibitor and a resin is melted and plasticized by an extruder and then extruded from a die to be cooled and solidified to give a predetermined shape and size.
  • One embodiment of the present invention may be a method for suppressing plant growth.
  • This method comprises a step of applying the above growth inhibitor or the above resin molding to soil. Thereby, the growth of plants existing in this soil can be suppressed.
  • the method of applying the growth inhibitor or the resin molded product in the step is appropriately selected depending on the state and shape of the growth inhibitor or the resin molded product, for example.
  • the growth inhibitor or the resin molded body may be inserted into soil, sprayed, or laid.
  • the application amount of the growth inhibitor or the resin molded body is preferably 500 g or more, and more preferably 1000 g or more per 1 m 2 of soil from the viewpoint of more suitably suppressing the growth of plants.
  • the application amount of the growth inhibitor or the resin molding may be, for example, 2500 g or less per 1 square meter of soil.
  • the application amount of the growth inhibitor or the resin molded body is, in another embodiment, from the viewpoint of more suitably suppressing the growth of plants, the application amount of the above-mentioned active ingredient is preferably 0.01 g per 1 m 2 of soil.
  • the above amount is more preferably 0.1 g or more, still more preferably 2.6 g or more, and particularly preferably 5.2 g or more.
  • the application amount of the growth inhibitor or the resin molding is, for example, such that the application amount of the above-mentioned active ingredient is 400 g or less, preferably 200 g or less, and more preferably 10.4 g or less per 1 square meter of soil. Good.
  • the plant to which the growth inhibitor or the resin molded product is applied may be an annual plant or a perennial plant, preferably an annual plant.
  • the plant may be a grass family or a family other than the grass family, and is preferably the grass family.
  • the plant is particularly preferably an annual grass plant.
  • Plants to which the growth inhibitor or the resin molded body is applied are, for example, Poa annua, chickweed, Polygonum, Shiroza, dandelion, communis communis, Mejisiba, Akihishiba, Ohishiba, Prunus chinensis, Periwinkle, Spodoptera litura, Artemisia, Greater oleoptera, hemlock, echinologera, oxalis, peregrine clover, clover, prickly pear, scutellaria, cypress, cypress, cypress, chinensis, indica serrata, cypress, cypress, minnow grass, harzion, staghorn sardine, scorpion grass, scorpion grass, cypress. You can The above resin molded product and the above method are preferably used when the plant is a weed (annual plant and perennial plant).
  • the resin molded body may be present in the soil 5 as shown in FIG. 1(b), or may be present on the surface of the soil 15, 25 as shown in FIGS. 2 and 3(b).
  • the soils 5, 15 and 25 include the resin moldings 1, 11 and 21 and become soils capable of suppressing the growth of plants. Therefore, the resin moldings 1, 11, 21 can also be referred to as soil-modifying resin moldings that can be modified into soil capable of suppressing the growth of plants.
  • Examples 1 to 3 With respect to the plant growth inhibitor shown in Table 1, the plant growth inhibitory effect was evaluated at the Plant Regulator Research Institute by the evaluation method shown below. That is, first, prepare three pots having a diameter of 8 cm, a height of 9 cm, and an area of 0.005 m 2 (five holes are provided on the bottom surface), and the pot has a volcanic ash clay loam soil up to a height of 6.5 cm. (PH: 5.8, humus content: 13.02%, maximum water capacity: 115%) was spread. Next, apart from the spread soil, the volcanic ash clay loam soil was sterilized and dried with chlorpicrin, and then sieved with a mesh of 2 to 4 mm to obtain sterilized and dried volcanic ash clay loam soil.
  • the obtained sterilized and dried volcanic ash clay loam soil was spread on the volcanic ash clay loam soil laid in the pot so that the height was 1.5 cm, and then seeds of the indweller about 3 cc were sown. Then, the seeds of barnyard grass were covered with a sterilized and dried volcanic ash clay loam soil, and a growth inhibitor was applied on the soil at an amount of 150 g/m 2 .
  • the number of germinated barnyard grass and the plant height were measured after 15 days and 22 days. After 30 days, the aerial part of the germinated D. chinensis was trimmed and the mass of the aerial part of D. chinensis was measured. Table 1 shows the average values of the measurement results of the three pots.
  • soybean oil containing a triester of fatty acid and glycerin was used.
  • Fatty acids constituting the triester include palmitic acid, stearic acid, oleic acid, linoleic acid and linolenic acid.
  • Example 1 From the evaluation results, comparing Example 1 in which triester was used as a growth inhibitor and Comparative Example 1 in which the growth inhibitor and the comparative component were not applied, in Example 1, the germination number after 15 days was 11 Approximately one-sixth, and the number of germinated seeds after 22 days is about the same, but the grass height is low both after 15 days and after 22 days, and the mass after cutting above ground is also small. Therefore, it can be said that the triester used in Example 1 can suppress the growth of plants.
  • Example 2 Comparing Example 2 in which glycerin was used as a growth inhibitor and Comparative Example 1 in which the growth inhibitor and the comparative component were not applied, in Example 2, the germination number and plant height after 15 days and 22 days and 30 The values are small at all points after the above-ground mowing after day. Therefore, it can be said that the glycerin used in Example 2 can suppress the growth of plants.
  • Example 3 Comparing Example 3 in which sorbitol was used as the growth inhibitor and Comparative Example 1 in which the growth inhibitor and the comparative component were not applied, in Example 3, although the plant height after 15 days was about the same, 15 The values are small in terms of the number of germination after day, the height of plant and the number of germination after 22 days, and the mass after cutting above ground. Therefore, it can be said that the sorbitol used in Example 3 can suppress the growth of plants.

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  • Life Sciences & Earth Sciences (AREA)
  • Dentistry (AREA)
  • Pest Control & Pesticides (AREA)
  • Plant Pathology (AREA)
  • Health & Medical Sciences (AREA)
  • Engineering & Computer Science (AREA)
  • Agronomy & Crop Science (AREA)
  • General Health & Medical Sciences (AREA)
  • Wood Science & Technology (AREA)
  • Zoology (AREA)
  • Environmental Sciences (AREA)
  • Agricultural Chemicals And Associated Chemicals (AREA)
  • Cultivation Of Plants (AREA)

Abstract

Un aspect de la présente invention est un inhibiteur de la croissance de plantes qui contient au moins une substance qui est choisie dans le groupe constitué par le glycérol, le sorbitol et les triesters d'un acide carboxylique et de glycérol.
PCT/JP2018/048243 2018-12-27 2018-12-27 Inhibiteur de la croissance de plantes, corps moulé en résine pour l'inhibition de la croissance de plantes, procédé d'inhibition de la croissance de plantes et sol Ceased WO2020136828A1 (fr)

Priority Applications (2)

Application Number Priority Date Filing Date Title
PCT/JP2018/048243 WO2020136828A1 (fr) 2018-12-27 2018-12-27 Inhibiteur de la croissance de plantes, corps moulé en résine pour l'inhibition de la croissance de plantes, procédé d'inhibition de la croissance de plantes et sol
JP2020562238A JP7637508B2 (ja) 2018-12-27 2018-12-27 植物の生長抑制剤及び植物の生長の抑制方法

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PCT/JP2018/048243 WO2020136828A1 (fr) 2018-12-27 2018-12-27 Inhibiteur de la croissance de plantes, corps moulé en résine pour l'inhibition de la croissance de plantes, procédé d'inhibition de la croissance de plantes et sol

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