CN113142209A - Herbicide solid preparation for organic agriculture and preparation method, application method and application thereof - Google Patents

Herbicide solid preparation for organic agriculture and preparation method, application method and application thereof Download PDF

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CN113142209A
CN113142209A CN202110454542.6A CN202110454542A CN113142209A CN 113142209 A CN113142209 A CN 113142209A CN 202110454542 A CN202110454542 A CN 202110454542A CN 113142209 A CN113142209 A CN 113142209A
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parts
citric acid
preparation
biochar
solid
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马梁惠东
马建义
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Zhejiang A&F University ZAFU
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Zhejiang A&F University ZAFU
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    • 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
    • A01N37/36—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 containing at least one carboxylic group or a thio analogue, or a derivative thereof, and a singly bound oxygen or sulfur atom attached to the same carbon skeleton, this oxygen or sulfur atom not being a member of a carboxylic group or of a thio analogue, or of a derivative thereof, e.g. hydroxy-carboxylic acids
    • A—HUMAN NECESSITIES
    • A01—AGRICULTURE; FORESTRY; ANIMAL HUSBANDRY; HUNTING; TRAPPING; FISHING
    • A01G—HORTICULTURE; CULTIVATION OF VEGETABLES, FLOWERS, RICE, FRUIT, VINES, HOPS OR SEAWEED; FORESTRY; WATERING
    • A01G13/00—Protecting plants
    • 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
    • A01N25/00—Biocides, pest repellants or attractants, or plant growth regulators, characterised by their forms, or by their non-active ingredients or by their methods of application, e.g. seed treatment or sequential application; Substances for reducing the noxious effect of the active ingredients to organisms other than pests
    • A01N25/08—Biocides, pest repellants or attractants, or plant growth regulators, characterised by their forms, or by their non-active ingredients or by their methods of application, e.g. seed treatment or sequential application; Substances for reducing the noxious effect of the active ingredients to organisms other than pests containing solids as carriers or diluents
    • 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
    • A01N43/00—Biocides, pest repellants or attractants, or plant growth regulators containing heterocyclic compounds
    • A01N43/34—Biocides, pest repellants or attractants, or plant growth regulators containing heterocyclic compounds having rings with one nitrogen atom as the only ring hetero atom
    • A01N43/46—Biocides, pest repellants or attractants, or plant growth regulators containing heterocyclic compounds having rings with one nitrogen atom as the only ring hetero atom rings with more than six members
    • 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
    • A01N59/00—Biocides, pest repellants or attractants, or plant growth regulators containing elements or inorganic 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
    • A01N65/00—Biocides, pest repellants or attractants, or plant growth regulators containing material from algae, lichens, bryophyta, multi-cellular fungi or plants, or extracts thereof
    • 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
    • A01N65/00—Biocides, pest repellants or attractants, or plant growth regulators containing material from algae, lichens, bryophyta, multi-cellular fungi or plants, or extracts thereof
    • A01N65/40—Liliopsida [monocotyledons]
    • A01N65/42—Aloeaceae [Aloe family] or Liliaceae [Lily family], e.g. aloe, veratrum, onion, garlic or chives
    • Y—GENERAL TAGGING OF NEW TECHNOLOGICAL DEVELOPMENTS; GENERAL TAGGING OF CROSS-SECTIONAL TECHNOLOGIES SPANNING OVER SEVERAL SECTIONS OF THE IPC; TECHNICAL SUBJECTS COVERED BY FORMER USPC CROSS-REFERENCE ART COLLECTIONS [XRACs] AND DIGESTS
    • Y02—TECHNOLOGIES OR APPLICATIONS FOR MITIGATION OR ADAPTATION AGAINST CLIMATE CHANGE
    • Y02A—TECHNOLOGIES FOR ADAPTATION TO CLIMATE CHANGE
    • Y02A40/00—Adaptation technologies in agriculture, forestry, livestock or agroalimentary production
    • Y02A40/10—Adaptation technologies in agriculture, forestry, livestock or agroalimentary production in agriculture
    • Y02A40/22—Improving land use; Improving water use or availability; Controlling erosion
    • Y—GENERAL TAGGING OF NEW TECHNOLOGICAL DEVELOPMENTS; GENERAL TAGGING OF CROSS-SECTIONAL TECHNOLOGIES SPANNING OVER SEVERAL SECTIONS OF THE IPC; TECHNICAL SUBJECTS COVERED BY FORMER USPC CROSS-REFERENCE ART COLLECTIONS [XRACs] AND DIGESTS
    • Y02—TECHNOLOGIES OR APPLICATIONS FOR MITIGATION OR ADAPTATION AGAINST CLIMATE CHANGE
    • Y02A—TECHNOLOGIES FOR ADAPTATION TO CLIMATE CHANGE
    • Y02A50/00—TECHNOLOGIES FOR ADAPTATION TO CLIMATE CHANGE in human health protection, e.g. against extreme weather
    • Y02A50/30—Against vector-borne diseases, e.g. mosquito-borne, fly-borne, tick-borne or waterborne diseases whose impact is exacerbated by climate change
    • Y—GENERAL TAGGING OF NEW TECHNOLOGICAL DEVELOPMENTS; GENERAL TAGGING OF CROSS-SECTIONAL TECHNOLOGIES SPANNING OVER SEVERAL SECTIONS OF THE IPC; TECHNICAL SUBJECTS COVERED BY FORMER USPC CROSS-REFERENCE ART COLLECTIONS [XRACs] AND DIGESTS
    • Y02—TECHNOLOGIES OR APPLICATIONS FOR MITIGATION OR ADAPTATION AGAINST CLIMATE CHANGE
    • Y02P—CLIMATE CHANGE MITIGATION TECHNOLOGIES IN THE PRODUCTION OR PROCESSING OF GOODS
    • Y02P60/00—Technologies relating to agriculture, livestock or agroalimentary industries
    • Y02P60/20—Reduction of greenhouse gas [GHG] emissions in agriculture, e.g. CO2
    • Y02P60/21—Dinitrogen oxide [N2O], e.g. using aquaponics, hydroponics or efficiency measures

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Abstract

A solid herbicide preparation for organic agriculture and a preparation method, a using method and application thereof belong to the technical field of creation of new biological pesticides and weed control in organic agriculture. Contains 60-90 parts of weeding active component citric acid, 3-9 parts of biochar, 2-5 parts of calcium lignosulphonate, 1-3 parts of water-soluble azone and 0.2-1.0 part of garlic or onion slices. The preparation saves the packaging and logistics cost, is simple to prepare, and has good safety to human and livestock and environmental compatibility; the weeding composition is environment-friendly in manufacturing process, simple in using method and low in dosage, and is suitable for weeding in planting of organic food and green food and quick weeding in places with high environmental requirements.

Description

Herbicide solid preparation for organic agriculture and preparation method, application method and application thereof
Technical Field
The invention belongs to the technical field of creation of new biological pesticides and weed control in organic agriculture, and particularly relates to a herbicide solid preparation for organic agriculture, and a preparation method, a use method and application thereof.
Background
The agricultural and forestry wastes in the biomass mainly comprise bamboo and wood processing residues, crop straws and the like, in order to realize comprehensive utilization and ecological environment protection of the wastes and increase the development of rural economy, the wastes are subjected to dry distillation treatment, the obtained solid matter, namely biochar has wider use scenes and higher price, gas generated in the production process can be recycled for new energy (gas and power generation), and the biomass recycling industrial development has good economic and environmental benefits and has obvious effect. Therefore, the search for new applications of the biochar for greater use is the minimum requirement of the biochar enterprises for continuous development and environmental protection. In another view, the occupied area of organic agriculture in China is less than 3 percent (5000 ten thousand mu), the development space is far from 5 percent of developed countries in Europe, America and Japan, the development space is gradually increased, the living standard of people is greatly improved depending on the high-speed development of economy in China, the consumption capacity and the demand of healthy food are continuously improved, however, the production input and the output of the organic agriculture are low, the requirements are very strict, the most difficult problem is weeding difficulty, artificial weeding or weeding with natural products is required, chemical herbicides and minerals are rejected, only 2 American Canada companies register natural fermented acetic acid as the herbicide in the world at present, the price reaches 400 yuan per mu, the weeding cost is saved compared with the artificial mechanical weeding, but the price bearing capacity of organic planting in China is far beyond, and therefore, the weeding product with the cost lower than 60 yuan per mu is searched, becomes a key technology for safe food planting in China. If the biochar is used for the biological herbicide, the effect of high-value utilization of the biochar is realized. At present, citric acid is directly used as a herbicide, the dosage is high concentration of more than 10 percent, the weeding effect is poor, especially, the weeding requirement on gramineous weeds can not be met, and the weeding effect on middle-aged and old weeds and large weeds is not ideal, so that the search for a biological herbicide preparation with high weeding efficiency, good effect, large weed control spectrum range, simple manufacture and low cost is an urgent need for weed control in organic agricultural planting.
Disclosure of Invention
Aiming at the problems in the prior art, the invention aims to design and provide a technical scheme of a preparation method of a herbicide solid preparation for organic agriculture, citric acid of the herbicide solid preparation has certain herbicidal activity, garlic and onion have obvious synergistic effect, biochar forms high-temperature burnt leaf surfaces under sunlight to form physical holes, and active ingredients and synergistic ingredients are further promoted to rapidly enter weed leaf surfaces to achieve further synergistic effect. The combination of the components saves the cost of medicine, package and logistics, has low comprehensive cost, simple preparation and easy price acceptance by the market, and has good safety for human and livestock and environmental compatibility because all ingredients belong to natural substances; the weeding composition is environment-friendly in manufacturing process, simple in using method and low in using amount, and is suitable for weeding in planting of organic food and green food, and also suitable for quick weeding in places with high environmental requirements, such as schools, hospitals, nursing homes, welfare homes, public places, roads, docks and the like.
The solid herbicide preparation for organic agriculture is characterized by comprising the following components in percentage by weight: 60-90 parts of weeding active ingredient citric acid, 3-9 parts of biochar, 2-5 parts of calcium lignosulfonate, 1-3 parts of water-soluble azone and 0.2-1.0 part of garlic or onion slices.
The solid herbicide preparation for organic agriculture is characterized by comprising the following components in percentage by weight: 65-85 parts of weeding active ingredient citric acid, 4-8 parts of biochar, 3-4 parts of calcium lignosulphonate, 1.5-2.5 parts of water-soluble azone and 0.4-0.8 part of garlic or onion slices.
The solid herbicide preparation for organic agriculture is characterized by comprising the following components in percentage by weight: 70-80 parts of weeding active ingredient citric acid, 5-7 parts of biochar, 3.5-3.8 parts of calcium lignosulfonate, 2-2.2 parts of water-soluble azone and 0.5-0.6 part of garlic or onion slices.
The solid herbicide preparation for organic agriculture is characterized in that the biochar is one or a mixture of more than one of bamboo charcoal, charcoal and straw charcoal.
The preparation method of the solid herbicide preparation for organic agriculture is characterized by comprising the following steps:
1) weighing citric acid, biochar, calcium lignosulphonate and water-soluble nitrogen according to the proportionKetone, garlic or onion slices, the charcoal powder is crushed into 600 meshes with the grain diameter of 300-2And is ready for use;
2) adding biochar into a solid stirrer, spraying water-soluble azone with a sprayer while stirring, adding sliced garlic or onion, uniformly stirring, adding calcium lignosulphonate, adding citric acid, and uniformly stirring to obtain the finished product.
The application method of the solid herbicide preparation for organic agriculture is characterized in that: diluting with water until the citric acid content is 3-6%, and spraying at a temperature above 14 deg.C and sunlight with weed spraying area of 70% or more.
The solid herbicide preparation for organic agriculture is applied to the preparation of herbicides for preventing and treating cyperus rotundus, bermuda grass, barnyard grass, cleavers, scandent hop, speedwell and alopecurus.
The solid herbicide preparation for organic agriculture, the preparation method, the use method and the application thereof have the following remarkable effects: 1) adsorbing the synergist water-soluble azone with charcoal to form a solid shape; 2) the solid preparation greatly saves packaging material flow and labor cost; 3) citric acid is used as a weeding active substance, and the synergists garlic and onion slices are screened out and used as further synergists, so that the effect of 2 times of synergism is realized; 4) superfine biochar can be suspended in a diluent and uniformly sprayed to the surfaces of the weed leaves to form high-temperature carbon under sunlight irradiation, so that small burning holes are formed in the weed leaves, active ingredients and synergistic ingredients are promoted to rapidly enter the interior of the weed leaves, chloroplasts are killed, physical damage is caused to the weed leaves, and the effect of chemically killing the active ingredients on the leaf surfaces is promoted; 5) the all natural substance formula is suitable for weed control in organic agriculture; 6) the physical weeding effect is achieved by using a water spray mode for the first time; 7) the invention firstly causes physical small holes on the leaf surfaces of the weeds, so that the weeding active substances can rapidly enter the leaf surfaces, thereby greatly saving the consumption of the citric acid and saving the cost.
Detailed Description
The present invention will now be described more fully hereinafter with reference to the accompanying specific embodiments, in which some, but not all embodiments of the invention are shown. All other embodiments, which can be derived by a person skilled in the art from the embodiments given herein without making any creative effort, shall fall within the protection scope of the present invention.
Example 1
Adding 3kg of bamboo charcoal with particle size of 300 mesh into solid mixer, spraying 1kg of water soluble azone with sprayer while stirring, adding 0.2kg of slices with thickness of 2mm and area of 25mm2Slicing fresh garlic, stirring uniformly, adding 2kg of calcium lignosulphonate, adding 60kg of citric acid, and stirring uniformly to obtain the finished product.
Example 2
Adding 4kg of charcoal with particle size of 400 mesh into a solid stirrer, spraying 2kg of water soluble azone with a sprayer while stirring, adding 0.4kg of slice with thickness of 2mm and area of 36 mm2Slicing fresh garlic, stirring uniformly, adding 3kg of calcium lignosulphonate, adding 70kg of citric acid, and stirring uniformly to obtain the finished product.
Example 3
Adding 5kg of straw charcoal with particle size of 500 meshes into a solid mixer, spraying 3kg of water-soluble azone with a sprayer while stirring, adding 0.6kg of slices with thickness of 2mm and area of 36 mm2Slicing fresh onion, stirring uniformly, adding 4kg of calcium lignosulphonate and 80kg of citric acid, and stirring uniformly to obtain the finished product.
Example 4
Adding 2kg of straw charcoal, 2kg of bamboo charcoal and 2kg of charcoal with particle size of 600 mesh into a solid mixer, spraying 3kg of water-soluble azone with a sprayer while stirring, adding 0.8kg of slices with thickness of 2mm and area of 50 mm2The fresh onion is sliced and stirred evenly, then 5kg of calcium lignosulphonate and 90kg of citric acid are added, and the finished product is obtained after even stirring.
Example 5
3kg of straw carbon with the particle size of 600 meshes, 3kg of bamboo charcoal and the like are put into a solid stirrer,3kg of charcoal, 2.5kg of water-soluble azone was sprayed with a sprayer while stirring, and the slices were added to a thickness of 2mm and an area of 80 mm20.5kg of fresh onion slices and 0.5kg of fresh garlic slices are evenly stirred, 4.5kg of calcium lignosulphonate and 90kg of citric acid are added, and the finished product is obtained after even stirring.
Example 6
Adding 2kg of straw charcoal and 2kg of bamboo charcoal with particle size of 350 mesh into a solid stirrer, spraying 1.5kg of water-soluble azone with a sprayer while stirring, adding slices with thickness of 2mm and area of 90mm20.2kg of fresh onion slices and 0.1kg of fresh garlic slices are evenly stirred, then 2.5kg of calcium lignosulphonate and 65kg of citric acid are added, and the finished product is obtained after even stirring.
Example 7
Adding 2.5kg charcoal and 2.5kg bamboo charcoal with particle size of 350 mesh into solid mixer, spraying 2.5kg water soluble azone with sprayer while stirring, adding slices with thickness of 2mm and area of 90mm20.1kg of fresh onion slices and 0.3kg of fresh garlic slices are evenly stirred, then 2kg of calcium lignosulphonate is added, 75kg of citric acid is added, and the finished product is obtained after even stirring.
Example 8
Adding 3kg of straw charcoal and 4kg of bamboo charcoal with particle size of 450 mesh into a solid mixer, spraying 2.2kg of water-soluble azone with a sprayer while stirring, adding slices with thickness of 2mm and area of 90mm20.4kg of fresh onion slices and 0.2kg of fresh garlic slices are evenly stirred, then 3.5kg of calcium lignosulphonate and 85kg of citric acid are added, and the finished product is obtained after even stirring.
Example 9
Adding 3kg of charcoal, 3kg of straw charcoal and 3kg of bamboo charcoal with particle size of 550 meshes into a solid mixer, spraying 1.8kg of water-soluble azone with a sprayer while stirring, adding slices with thickness of 2mm and area of 90mm20.3kg of fresh onion slices and 0.2kg of fresh garlic slices are evenly stirred, 4kg of calcium lignosulphonate and 90kg of citric acid are added, and the finished product is obtained after even stirring.
Example 10
1kg of wood with the grain diameter of 600 meshes is put into a solid stirrerCarbon, 2kg of straw carbon and 6kg of bamboo charcoal, spraying 1.8kg of water-soluble azone by using a sprayer while stirring, and adding slices with the thickness of 2mm and the area of 30 mm20.3kg of fresh onion slices and 0.2kg of fresh garlic slices are evenly stirred, then 5kg of calcium lignosulphonate and 90kg of citric acid are added, and the finished product is obtained after even stirring.
The weed control effect of the above herbicide formulation is demonstrated by experiments below. And (4) performing a field weeding test by referring to NY/T1464.40-2011 'pesticide field efficacy test criterion'. The specific design is as follows:
the test is carried out in the university campus of agriculture and forestry in Zhejiang. The experimental land divided into pieces of weeds into small areas with the area of 1 x 1m by using fine iron wires, 4 concentration gradients were set for each test agent, the weeds were sprayed after the test agents in examples 1 to 12 were diluted with water at the dose of 5% of the active ingredient, 45 kg was sprayed per mu, three times of repeated application was performed at each concentration, and a clear water control group, a glufosinate control group, and a citric acid + surfactant control group were additionally set. The cells are randomly arranged. And a label is inserted into each cell, the content of the label comprises a medicament name, a pesticide application concentration and a plant name, and protection lines are arranged around the label to ensure that adjacent plants are not influenced during pesticide application. The experimental land has the advantages that the soil of the experimental land is yellow purple mud, the pH value is 6.8, the organic matter content is 2.9%, the fertility is moderate, the soil is a naturally-growing weed base, and no herbicide is applied before the experiment. The application time and method are as follows: investigating weather conditions in the future for 10 days in advance, selecting continuous clear weather, and applying the medicine in 3-10 months in 2020. Spraying by using a manual sprayer provided by Henan Yunfei science and technology Limited to ensure that the overground parts of the weeds are sprayed wet and thoroughly, no rainfall occurs within 24h after the application, and weed samples are collected at 3d and 7d (the control effect of 7 days after the application) after the application respectively (20 plants in each cell are one sample). Result analysis the fresh weight control effect of the weeds is calculated by using a formula: fresh weight inhibition ratio (%) = (CK-WT)/WT × 100, wherein CK is the fresh weight of a clear water control group, and WT is the fresh weight of a plant after drug application; the data obtained from the experiments are the average of three replicates. The fresh weight inhibition rates of the four tested weeds were tested for significant effect at different concentrations with three tested agents using one-way analysis of variance (ANOVA) and LSD testing. Data were statistically analyzed using SPSS 21.0.
Table 1 examples 1-10 herbicidal effects against 7 weeds, such as cyperus rotundus, cynodon dactylon, barnyard grass, cleaver, scandent hop, speedwell, and alopecurus, 7 days after spraying the drug at a dose of 45 kg per mu at a concentration of 5% citric acid (%)
Treatment of Cyperus rotundus L.var.nuda (Merr.) Hsiao Bermuda grass Barnyard grass Galium aparine Japanese hop (Humulus scandens) Herb of veronica Wheat-looking bride
Example 1 71±2a 73±2a 78±2b 79±4b 74±2a 79±3b 80±2b
Example 2 73±2b 75±2ab 80±3bc 82±1bc 76±2ab 82±2bc 83±2bc
Example 3 75±2bc 79±2bc 84±3c 85±3c 80±2bc 84±2bc 85±3c
Example 4 78±3c 82±2c 85±2c 84±2c 85±2c 85±2c 86±3c
Example 5 85±2d 88±1d 89±3d 90±3d 88±3cd 89±4d 88±2cd
Example 6 81±2cd 87±3d 86±2cd 85±2c 85±3c 84±2bc 85±2c
Example 7 83±2cd 89±2d 88±2d 87±2c 87±2c 86±3bc 88±2cd
Example 8 85±1d 90±2d 91±1d 92±2d 89±3cd 88±2c 89±2cd
Example 9 88±3de 91±2d 92±3d 93±2d 91±3d 90±3cd 91±3cd
Example 10 91±2e 93±2d 93±1d 94±2d 92±3d 92±1d 93±2d
10% citric acid control group 65±2a 63±1a 65±1a 68±2a 65±4a 64±1a 65±2a
Glufosinate-ammonium 0.5% control group 68±3a 65±2a 64±2a 66±3a 64±3a 62±3a 66±4a
Table 1 shows that the herbicidal effect on cyperus rotundus is not significantly different from that of the control medicament glufosinate-ammonium in example 1 (5% citric acid) and that of the 10% citric acid control group, which indicates that the activity of example 1 is higher than that of the 10% citric acid control group, the synergistic effect is 1 time, the herbicidal activity of examples 2-10 (5% citric acid) is significantly higher than that of glufosinate-ammonium and higher than that of the 10% citric acid control group, which indicates that the synergistic effect is more than 1 time, wherein the herbicidal activity of examples 1-10 is between 71-91%, wherein examples 8-10 are all more than 85%, and the synergistic effect is correspondingly improved with the increase of the dosage of the biochar.
Table 1 shows that the herbicidal effect on cynodon dactylon is not significantly different from that of the control medicament glufosinate-ammonium in examples 1-2 (5% citric acid) and the control medicament glufosinate-ammonium and is also not significantly different from that of the 10% citric acid control group, which indicates that the activity of examples 1-2 is higher than that of the 10% citric acid control group, the synergistic effect is 1 time, the herbicidal activity of examples 3-10 (5% citric acid) is significantly higher than that of glufosinate-ammonium and also higher than that of the 10% citric acid control group, which indicates that the synergistic effect is more than 1 time, wherein the herbicidal activity of examples 2-10 is between 73-93%, wherein examples 8-10 are all more than 90%, and the synergistic effect is correspondingly improved with the increase of the dosage of the biochar.
As can be seen in Table 1, the herbicidal effect on barnyard grass in examples 1-10 (5% citric acid) indicates that the activity of examples 1-10 is higher than that of the 10% citric acid control group and higher than that of the 10% citric acid control group, indicating that the synergistic effect is more than 1-fold, wherein the herbicidal activity of examples 1-10 is between 78-93%, wherein the activity of examples 8-10 is more than 90%, and the synergistic effect is correspondingly improved with the increase of the dosage of the biochar.
As can be seen in Table 1, the herbicidal effect on cleavers examples 1-10 (5% citric acid) illustrates that examples 1-10 are more active than the 10% citric acid control and also more active than the 10% citric acid control, which illustrates a synergistic effect of greater than 1-fold, wherein the herbicidal activity of examples 1-10 is between 79-94%, wherein examples 5 and 8-10 are both greater than 90%, and the synergistic effect increases with increasing biochar dose.
Table 1 shows that the herbicidal effect on humulus scandens in examples 1-2 (5% citric acid) is not significantly different from that of the control medicament glufosinate-ammonium, nor is it significantly different from that of the 10% citric acid control group, which indicates that the activity of examples 1-2 is higher than that of the 10% citric acid control group, the synergistic effect is 1 time, the herbicidal activity of examples 3-10 (5% citric acid) is significantly higher than that of glufosinate-ammonium, and is also higher than that of the 10% citric acid control group, which indicates that the synergistic effect is more than 1 time, wherein the herbicidal activity of examples 1-10 is between 74-92%, wherein examples 9-10 are all more than 90%, and the synergistic effect is correspondingly improved with the increase of the dosage of charcoal.
Table 1 shows that the herbicidal effect against veronica as shown in examples 1-10 (5% citric acid) indicates that the activity of examples 1-10 is higher than that of the 10% citric acid control group and also higher than that of the 10% citric acid control group, indicating that the synergistic effect is more than 1-fold, wherein the herbicidal activity of examples 1-10 is between 79-92%, wherein examples 9-10 are all more than 90%, and the synergistic effect is correspondingly improved with the increase of the dosage of the biochar.
As can be seen in table 1, the herbicidal effects on the myrtle of examples 1 to 10 (5% citric acid) show that the activity of examples 1 to 10 is higher than that of the 10% citric acid control group and also higher than that of the 10% citric acid control group, which shows that the synergistic effect is more than 1 time, wherein the herbicidal activity of examples 1 to 10 is between 80 and 93%, wherein examples 9 to 10 are all more than 90%, and the synergistic effect is correspondingly improved with the increase of the dosage of the biochar.
The embodiments described in this specification are merely illustrative of implementations of the inventive concepts, which are intended for purposes of illustration only. The scope of the present invention should not be construed as being limited to the particular forms set forth in the examples, but rather as being defined by the claims and the equivalents thereof which can occur to those skilled in the art upon consideration of the present inventive concept.

Claims (7)

1. A solid herbicide preparation for organic agriculture, which is characterized by comprising: 60-90 parts of weeding active ingredient citric acid, 3-9 parts of biochar, 2-5 parts of calcium lignosulfonate, 1-3 parts of water-soluble azone and 0.2-1.0 part of garlic or onion slices.
2. The solid herbicidal preparation according to claim 1, which comprises: 65-85 parts of weeding active ingredient citric acid, 4-8 parts of biochar, 3-4 parts of calcium lignosulphonate, 1.5-2.5 parts of water-soluble azone and 0.4-0.8 part of garlic or onion slices.
3. The solid herbicidal preparation according to claim 1, which comprises: 70-80 parts of weeding active ingredient citric acid, 5-7 parts of biochar, 3.5-3.8 parts of calcium lignosulfonate, 2-2.2 parts of water-soluble azone and 0.5-0.6 part of garlic or onion slices.
4. The solid preparation of claim 1, wherein the biochar is one or more of bamboo charcoal, charcoal and straw charcoal.
5. The process for producing a herbicide solid formulation for organic agriculture according to claim 1, which comprises the steps of:
1) weighing citric acid, biochar, calcium lignosulfonate, water-soluble azone, garlic or onion slices according to the proportion, crushing the biochar powder to the particle size of 300-600 meshes, wherein the thickness of the garlic or onion slices is 2-3mm, and the area of the garlic or onion slices is more than or equal to 25mm2And is ready for use;
2) adding biochar into a solid stirrer, spraying water-soluble azone with a sprayer while stirring, adding sliced garlic or onion, uniformly stirring, adding calcium lignosulphonate, adding citric acid, and uniformly stirring to obtain the finished product.
6. The method of using a solid herbicide formulation for organic agriculture according to claim 1, wherein: diluting with water until the citric acid content is 3-6%, and spraying at a temperature above 14 deg.C and sunlight with weed spraying area of 70% or more.
7. Use of the solid preparation of an organic agricultural herbicide according to claim 1 for the preparation of a herbicide for controlling Cyperus rotundus, Cynodon dactylon, Echinochloa crusgalli, Galium aparine, Humulus scandens, Veronica and Aleurites montana.
CN202110454542.6A 2021-04-26 2021-04-26 Herbicide solid preparation for organic agriculture and preparation method, application method and application thereof Pending CN113142209A (en)

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