CN114831126A - Method for preventing and treating crop soil-borne diseases by using trichloroisocyanuric acid and application - Google Patents
Method for preventing and treating crop soil-borne diseases by using trichloroisocyanuric acid and application Download PDFInfo
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- CN114831126A CN114831126A CN202210456043.5A CN202210456043A CN114831126A CN 114831126 A CN114831126 A CN 114831126A CN 202210456043 A CN202210456043 A CN 202210456043A CN 114831126 A CN114831126 A CN 114831126A
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- YRIZYWQGELRKNT-UHFFFAOYSA-N 1,3,5-trichloro-1,3,5-triazinane-2,4,6-trione Chemical compound ClN1C(=O)N(Cl)C(=O)N(Cl)C1=O YRIZYWQGELRKNT-UHFFFAOYSA-N 0.000 title claims abstract description 84
- 229950009390 symclosene Drugs 0.000 title claims abstract description 84
- 201000010099 disease Diseases 0.000 title claims abstract description 49
- 208000037265 diseases, disorders, signs and symptoms Diseases 0.000 title claims abstract description 49
- 238000000034 method Methods 0.000 title claims abstract description 36
- 239000002689 soil Substances 0.000 claims abstract description 66
- 238000003973 irrigation Methods 0.000 claims abstract description 23
- 230000002262 irrigation Effects 0.000 claims abstract description 19
- 230000001580 bacterial effect Effects 0.000 claims abstract description 5
- 239000004563 wettable powder Substances 0.000 claims description 38
- 239000003085 diluting agent Substances 0.000 claims description 18
- 238000003113 dilution method Methods 0.000 claims description 12
- XLYOFNOQVPJJNP-UHFFFAOYSA-N water Substances O XLYOFNOQVPJJNP-UHFFFAOYSA-N 0.000 claims description 11
- 238000007865 diluting Methods 0.000 claims description 10
- 238000004659 sterilization and disinfection Methods 0.000 claims description 10
- 238000002791 soaking Methods 0.000 claims description 8
- 238000005507 spraying Methods 0.000 claims description 8
- 238000003892 spreading Methods 0.000 claims description 8
- 206010039509 Scab Diseases 0.000 claims description 7
- 241001149959 Fusarium sp. Species 0.000 claims description 6
- 239000003795 chemical substances by application Substances 0.000 claims description 6
- 230000000813 microbial effect Effects 0.000 claims description 6
- 239000010410 layer Substances 0.000 claims description 4
- 239000000203 mixture Substances 0.000 claims description 4
- 239000002344 surface layer Substances 0.000 claims description 4
- 241000233616 Phytophthora capsici Species 0.000 claims description 3
- 241000232299 Ralstonia Species 0.000 claims description 3
- 241001219482 Spongospora Species 0.000 claims description 3
- 241000187181 Streptomyces scabiei Species 0.000 claims description 3
- 241000082085 Verticillium <Phyllachorales> Species 0.000 claims description 3
- 241001123668 Verticillium dahliae Species 0.000 claims description 3
- 238000002156 mixing Methods 0.000 claims description 3
- 239000007864 aqueous solution Substances 0.000 claims description 2
- 239000002994 raw material Substances 0.000 claims 1
- 230000000694 effects Effects 0.000 abstract description 14
- 238000007598 dipping method Methods 0.000 abstract description 10
- 238000009335 monocropping Methods 0.000 abstract description 9
- 244000052616 bacterial pathogen Species 0.000 abstract description 7
- 230000008901 benefit Effects 0.000 abstract description 4
- 241000700605 Viruses Species 0.000 abstract description 2
- 244000053095 fungal pathogen Species 0.000 abstract description 2
- 230000001954 sterilising effect Effects 0.000 abstract 1
- 239000007788 liquid Substances 0.000 description 23
- 230000000052 comparative effect Effects 0.000 description 9
- 239000000243 solution Substances 0.000 description 7
- 239000003814 drug Substances 0.000 description 6
- 238000004080 punching Methods 0.000 description 6
- 235000002566 Capsicum Nutrition 0.000 description 5
- 238000011049 filling Methods 0.000 description 5
- 238000011010 flushing procedure Methods 0.000 description 5
- 241000196324 Embryophyta Species 0.000 description 4
- 239000006002 Pepper Substances 0.000 description 4
- 241000722363 Piper Species 0.000 description 4
- 235000016761 Piper aduncum Nutrition 0.000 description 4
- 235000017804 Piper guineense Nutrition 0.000 description 4
- 235000008184 Piper nigrum Nutrition 0.000 description 4
- 230000002265 prevention Effects 0.000 description 4
- 239000000126 substance Substances 0.000 description 4
- 235000002568 Capsicum frutescens Nutrition 0.000 description 3
- 240000008574 Capsicum frutescens Species 0.000 description 3
- 244000061456 Solanum tuberosum Species 0.000 description 3
- 235000002595 Solanum tuberosum Nutrition 0.000 description 3
- 239000007888 film coating Substances 0.000 description 3
- 238000009501 film coating Methods 0.000 description 3
- 238000004519 manufacturing process Methods 0.000 description 3
- 235000012015 potatoes Nutrition 0.000 description 3
- QGZKDVFQNNGYKY-UHFFFAOYSA-N Ammonia Chemical compound N QGZKDVFQNNGYKY-UHFFFAOYSA-N 0.000 description 2
- 241000894006 Bacteria Species 0.000 description 2
- 239000002068 microbial inoculum Substances 0.000 description 2
- 239000000843 powder Substances 0.000 description 2
- 238000007789 sealing Methods 0.000 description 2
- 244000000034 soilborne pathogen Species 0.000 description 2
- 238000003756 stirring Methods 0.000 description 2
- 230000004083 survival effect Effects 0.000 description 2
- 241000186361 Actinobacteria <class> Species 0.000 description 1
- 239000005644 Dazomet Substances 0.000 description 1
- 241000233866 Fungi Species 0.000 description 1
- 239000002169 Metam Substances 0.000 description 1
- 241000244206 Nematoda Species 0.000 description 1
- 244000046052 Phaseolus vulgaris Species 0.000 description 1
- 235000010627 Phaseolus vulgaris Nutrition 0.000 description 1
- 241000233614 Phytophthora Species 0.000 description 1
- 241000758706 Piperaceae Species 0.000 description 1
- 230000002411 adverse Effects 0.000 description 1
- 229910021529 ammonia Inorganic materials 0.000 description 1
- 230000009286 beneficial effect Effects 0.000 description 1
- 235000013339 cereals Nutrition 0.000 description 1
- 239000013043 chemical agent Substances 0.000 description 1
- 238000003967 crop rotation Methods 0.000 description 1
- QAYICIQNSGETAS-UHFFFAOYSA-N dazomet Chemical compound CN1CSC(=S)N(C)C1 QAYICIQNSGETAS-UHFFFAOYSA-N 0.000 description 1
- 230000007547 defect Effects 0.000 description 1
- 238000005516 engineering process Methods 0.000 description 1
- 210000000416 exudates and transudate Anatomy 0.000 description 1
- 230000035784 germination Effects 0.000 description 1
- 208000015181 infectious disease Diseases 0.000 description 1
- 230000007774 longterm Effects 0.000 description 1
- 231100000053 low toxicity Toxicity 0.000 description 1
- HYVVJDQGXFXBRZ-UHFFFAOYSA-N metam Chemical compound CNC(S)=S HYVVJDQGXFXBRZ-UHFFFAOYSA-N 0.000 description 1
- 244000005700 microbiome Species 0.000 description 1
- 239000000618 nitrogen fertilizer Substances 0.000 description 1
- 244000052769 pathogen Species 0.000 description 1
- LKPLKUMXSAEKID-UHFFFAOYSA-N pentachloronitrobenzene Chemical compound [O-][N+](=O)C1=C(Cl)C(Cl)=C(Cl)C(Cl)=C1Cl LKPLKUMXSAEKID-UHFFFAOYSA-N 0.000 description 1
- 239000000447 pesticide residue Substances 0.000 description 1
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
- A01N43/00—Biocides, pest repellants or attractants, or plant growth regulators containing heterocyclic compounds
- A01N43/64—Biocides, pest repellants or attractants, or plant growth regulators containing heterocyclic compounds having rings with three nitrogen atoms as the only ring hetero atoms
-
- 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
-
- 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
Landscapes
- Life Sciences & Earth Sciences (AREA)
- Environmental Sciences (AREA)
- General Health & Medical Sciences (AREA)
- Health & Medical Sciences (AREA)
- Pest Control & Pesticides (AREA)
- Agronomy & Crop Science (AREA)
- Toxicology (AREA)
- Plant Pathology (AREA)
- Engineering & Computer Science (AREA)
- Dentistry (AREA)
- Wood Science & Technology (AREA)
- Zoology (AREA)
- Agricultural Chemicals And Associated Chemicals (AREA)
Abstract
The invention relates to the technical field of soil disease control, in particular to a method for controlling crop soil-borne diseases by using trichloroisocyanuric acid and an application thereof, wherein trichloroisocyanuric acid is applied to each stage of crop planting through the steps of deep soil ploughing, ploughing and sterilizing, root dipping before crop planting, root irrigation during crop planting, post-planting irrigation and the like, so that the continuous cropping obstacle of crops is effectively reduced, the morbidity and disease index of the crop soil-borne diseases are reduced, and the method has the advantages of quick response, obvious effect, simple and convenient operation steps, low cost, high efficiency, safety, no resistance, no residue, obvious economic benefit and wide application prospect for controlling the soil-borne diseases such as epidemic diseases, southern blight, root rot, bacterial wilt, canker and the like caused by pathogenic fungi, bacteria and viruses.
Description
Technical Field
The invention relates to the technical field of soil disease control, in particular to a method for controlling crop soil-borne diseases by using trichloroisocyanuric acid and application thereof.
Background
The soil-borne disease refers to the condition that all or part of the life history of pathogenic bacteria live in soil, the pathogenic bacteria germinate when the conditions are proper, and the disease of hosts is caused by infection from the root and the stem of crops. Soil-borne diseases mainly damage roots and stems of plants, and once crops get ill, seedling root rot or stem rot can be caused, so that seedlings fall down suddenly and die quickly, seedlings are short of seedlings and ridges, and yield is seriously affected. The long-term continuous cropping mode and frequent seed adjustment among various regions not only promote the trans-regional spread of the soil-borne diseases of the crops, but also make the soil-borne diseases of the crop producing regions increasingly serious, cause great influence on the production of the crops, reduce the yield of agricultural products, lower the quality and commodity and increase the production cost of farmers. According to incomplete statistics, the main soil-borne diseases of crops are nearly 40, including fungi, bacteria, actinomycetes and nematodes. In China, crop soil-borne diseases mainly include blight (Fusarium sp.), Verticillium wilt (Verticillium dahliae), epidemic disease (Phytophthora capsici Leonian), scab (Streptomyces scabies), powdery scab (Spongospora terreran), dry rot (Fusarium sp.), bacterial wilt (Ralstonia scab) and southern blight (Selerotium rolfsii Sacc).
The crop rotation with other crops is a measure for effectively preventing and controlling soil-borne diseases of the crops, the rotation can obviously reduce the quantity of pathogenic bacteria in the soil, and root exudates of crops such as gramineous crops, beans and the like can obviously reduce the germination rate of pathogenic bacteria spores. Research of the Yangdong forces discovers that rotation of potatoes and cereal crops can effectively slow down continuous cropping obstacles of the potatoes and has a good effect of preventing and treating soil-borne diseases of the potatoes. The chemical prevention and control means is the most common measure, is commonly used for chemical agents of metam and dazomet for preventing and controlling soil-borne diseases of crops, has good prevention and control effect, but has higher cost, needs film covering, has more complicated use method and longer pesticide residue period, and has adverse effect on the quality of agricultural products. The chemical prevention and treatment means with high efficiency, low toxicity, low residue and simple and convenient use method is applied to slow down the continuous cropping obstacle of the crops and reduce the morbidity and disease index of the soil-borne diseases of the crops.
Disclosure of Invention
Aiming at the defects of the background technology, the invention provides a method for preventing and treating crop soil-borne diseases by using trichloroisocyanuric acid and application thereof, and solves the problems of high cost, complex treatment and long chemical residual period of chemical prevention and treatment means.
On one hand, the invention provides a method for controlling crop soil-borne diseases by using trichloroisocyanuric acid, which is characterized by comprising the following steps:
s1, deeply ploughing soil of soil-borne diseases of crops; during actual operation, the soil is deeply ploughed to destroy the living environment of pathogenic bacteria, and meanwhile, the diseased plant residues are deeply buried;
s2, applying trichloroisocyanuric acid to deeply ploughed soil by adopting a spraying method, a soil mixing and spreading method or an irrigation method; in actual operation, if soil disinfection is finished in a greenhouse or a greenhouse, sealing treatment can be selected, and the sealing time is 1-3 days;
s3, soaking the roots of the crop seedlings with trichloroisocyanuric acid diluent; in actual operation, the roots of the seedlings are wetted by the liquid medicine, so that the roots of the seedlings are charged with the liquid medicine, and the roots of the seedlings can be killed even if pathogenic bacteria exist around the roots after the seedlings are planted;
s4, after the field planting of the crop seedlings is finished, root irrigation is carried out by using trichloroisocyanuric acid diluent; in actual operation, the large-area occurrence of diseases caused by the spread of pathogens along with water during watering can be avoided;
s5, after the crops are planted for 5-10 days, the crops are applied by using a microbial agent. In practice, crops can be supplemented with beneficial microorganisms.
Preferably, the spraying method in S2 is specifically as follows: when the land is ploughed to a depth of 20-40 cm, 30-50% trichloroisocyanuric acid wettable powder is diluted by adding water by 300 times of 100 times to prepare trichloroisocyanuric acid diluent, the trichloroisocyanuric acid diluent is uniformly sprayed to the ploughed part, the ploughed part can be leveled after spraying, the leveled soil surface layer is sprayed once, and the soil can be used after 4-8 hours. By adopting the method, the film coating is not needed, the method is simple and convenient, and the cost is low.
Preferably, the soil-mixing spreading method in the S2 specifically comprises the following steps: when the land is ploughed to 20-40 cm deep, 30-50% trichloroisocyanuric acid wettable powder and fine soil are mixed according to the proportion of 1: 10-1: 30, uniformly and directly spreading the mixture on the layer of the plowed soil, leveling the land after spreading, and using the soil after 4-8 hours. Preferably, the powder and fine soil are mixed according to the ratio of 1: 10-1: 20, and more preferably, the powder and the fine soil are mixed according to the ratio of 1: 15-1: 20, for example, may be 1: 10. 1: 12. 1: 14. 1: 16. 1: 20. 1: 22. 1: 24. 1: 26. 1: 28. 1: 30, or any intermediate value thereof; by adopting the method, no film coating is needed, the method is simple and convenient, and the cost is low.
Preferably, the pouring method in S2 is specifically: 30-50% trichloroisocyanuric acid wettable powder is diluted by 100-fold addition of water to form trichloroisocyanuric acid diluent, and the trichloroisocyanuric acid diluent directly performs sterilization and disinfection on a soil target in the modes of sprinkling irrigation, drip irrigation, micro-irrigation and direct irrigation. By adopting the method, no film coating is needed, the method is simple and convenient, and the cost is low.
Preferably, in S3: the trichloroisocyanuric acid diluent is prepared by diluting 36-42% trichloroisocyanuric acid wettable powder with water to 500-1500 times.
Preferably, in S4: the trichloroisocyanuric acid diluent is prepared by diluting 36-42% trichloroisocyanuric acid wettable powder by 300-fold addition of water.
Preferably, the dosage per mu of the trichloroisocyanuric acid wettable powder is 500-1000 g.
Preferably, in S2: the soil temperature during plowing is more than 5 ℃.
Preferably, the trichloroisocyanuric acid diluent is prepared by adopting a secondary dilution method. In practice, trichloroisocyanuric acid is poured into a certain amount of water, stirred properly and then diluted to the required concentration.
On the other hand, the invention provides the application of trichloroisocyanuric acid in preventing and controlling soil-borne diseases of crops, and the key points are that: the trichloroisocyanuric acid is 30-50% of trichloroisocyanuric acid wettable powder and/or trichloroisocyanuric acid aqueous solution; the crop soil-borne diseases include, but are not limited to, blight (Fusarium sp.), Verticillium wilt (Verticillium dahliae), blight (Phytophthora capsici Leonian), scab (Streptomyces scabies), powdery scab (spongospora terrierrana), dry rot (Fusarium sp.), bacterial wilt (ralstonia natarum), and southern blight (Selerotium rolii Sacc). In practical operation, the trichloroisocyanuric acid wettable powder is preferably 30% -45% trichloroisocyanuric acid wettable powder, more preferably 36% -42% trichloroisocyanuric acid wettable powder, and may be 36% trichloroisocyanuric acid wettable powder, 40% trichloroisocyanuric acid wettable powder, or 42% trichloroisocyanuric acid wettable powder, for example; the application comprises preventing the growth and the spread of crop soil-borne pathogens so as to prevent the occurrence of diseases, repairing the soil polluted by the crop soil-borne pathogens so as to reduce the production loss of crops and the like, wherein in the application process, trichloroisocyanuric acid is forbidden to be mixed with ammonia and nitrogen fertilizer so as to avoid the occurrence of exothermic reaction.
Has the advantages that: compared with the prior art, the trichloroisocyanuric acid is applied to each stage of crop planting, so that the continuous cropping obstacle of crops is effectively slowed down, the morbidity and disease index of soil-borne diseases of the crops are reduced, the effect on preventing and treating the soil-borne diseases such as epidemic diseases, southern blight, root rot, bacterial wilt, canker and the like caused by pathogenic fungi, bacteria and viruses is quick, the effect is obvious, the operation steps are simple and convenient, the cost is low, the effects are high, the safety is high, the resistance is free from residues, the economic benefit is obvious, and the application prospect is wide.
Detailed Description
In order to make the technical solution of the present invention better understood by those skilled in the art, the present invention will be described in detail below with reference to the accompanying tables and specific embodiments.
Example 1
Soil disinfection: when the soil is ploughed (the soil temperature needs to be more than 5 ℃), when the soil is ploughed by about 30 cm, 36% trichloroisocyanuric acid wettable powder is diluted into 200 times of liquid by adopting a secondary dilution method, the liquid is uniformly sprayed to the ploughed part by a sprayer, the ploughed part can be leveled after spraying, the surface layer of the leveled soil is sprayed once, the mu dosage is 1000 g, and the soil can be used after 5 hours without covering a film; 2. dipping roots before planting: before field planting of crops, diluting 36% trichloroisocyanuric acid wettable powder into 1000 times of solution by adopting a secondary dilution method, and soaking the whole seedling lump into the solution to dip; 3. irrigating roots during planting: after the field planting of crops is finished, filling the roots of the crops with 500 times of 36% trichloroisocyanuric acid wettable powder once; 4. performing punching after planting: and 7 days after the crops are planted, the crops are applied by flushing 1000 times of liquid of a microbial agent (Babaili).
Example 2
Soil disinfection: when the soil is ploughed (the soil temperature needs to be above 5 ℃), when the soil is ploughed by about 20 cm, 30% trichloroisocyanuric acid wettable powder and fine soil are mixed according to the proportion of 1: 10, uniformly stirring, uniformly and directly scattering the mixture into a plowed soil layer, leveling the land after scattering, wherein the dosage per mu is 500 g, and the soil can be used after 4 hours without covering a film; 2. dipping roots before planting: before field planting of crops, diluting 42% trichloroisocyanuric acid wettable powder into 1500 times of solution by adopting a secondary dilution method, and soaking the whole seedling lump into the solution to dip; 3. irrigating roots during planting: after the field planting of crops is finished, filling the roots of the crops with 300 times of liquid of 38 percent trichloroisocyanuric acid wettable powder once; 4. performing punching after planting: and 7 days after the crops are planted, the crops are applied by flushing 1000 times of liquid of a microbial agent (Babaili).
Example 3
Soil disinfection: when the soil is ploughed (the soil temperature needs to be more than 5 ℃), when the soil is ploughed by about 30 cm, 50% trichloroisocyanuric acid wettable powder is diluted into 300 times of liquid by adopting a secondary dilution method, and a soil target is directly sterilized and disinfected by adopting the modes of sprinkling irrigation, drip irrigation, micro-irrigation and direct irrigation; 2. dipping roots before planting: before field planting of crops, diluting 40% trichloroisocyanuric acid wettable powder into 500 times of liquid by adopting a secondary dilution method, and soaking the whole seedling lump into the liquid medicine for dipping; 3. irrigating roots during planting: after the field planting of crops is finished, filling the roots of the crops with 600 times of liquid of 42 percent trichloroisocyanuric acid wettable powder once; 4. performing punching after planting: and 7 days after the field planting of the crops, the crops are applied by flushing with 1000 times of microbial inoculum (Babaili).
Example 4
Soil disinfection: when the soil is ploughed (the soil temperature needs to be more than 5 ℃), when the soil is ploughed by about 20 cm, 48% trichloroisocyanuric acid wettable powder is diluted into 300 times of liquid by adopting a secondary dilution method, the liquid is uniformly sprayed to the ploughed part by a sprayer, the ploughed part can be leveled after spraying, the surface layer of the leveled soil is sprayed once, the mu dosage is 800 g, the soil can be used after 6 hours, and a film is not required to be covered; 2. dipping roots before planting: before field planting of crops, diluting 38% trichloroisocyanuric acid wettable powder into 1200 times of liquid by adopting a secondary dilution method, and soaking the whole seedling lump into the liquid medicine for dipping; 3. irrigating roots during planting: after the field planting of crops is finished, filling the roots of the crops with 600 times of liquid of 42 percent trichloroisocyanuric acid wettable powder once; 4. performing punching after planting: and 7 days after the crops are planted, the crops are applied by flushing 1000 times of liquid of a microbial agent (Babaili).
Example 5
Soil disinfection: when the soil is ploughed (the soil temperature needs to be more than 5 ℃), when the soil is ploughed by about 30 cm, the 42 percent trichloroisocyanuric acid wettable powder and the fine soil are mixed according to the proportion of 1: 10, uniformly stirring, uniformly and directly scattering the mixture into a plowed soil layer, leveling the land after scattering, wherein the dosage per mu is 800 g, and the soil can be used after 4 hours without covering a film; 2. dipping roots before planting: before field planting of crops, diluting 42% trichloroisocyanuric acid wettable powder into 1500 times of solution by adopting a secondary dilution method, and soaking the whole seedling lump into the solution to dip; 3. irrigating roots during planting: after the field planting of crops is finished, irrigating the roots once by using 500 times of liquid of 40% trichloroisocyanuric acid wettable powder; 4. performing punching after planting: and 7 days after the crops are planted, the crops are applied by flushing 1000 times of liquid of a microbial agent (Babaili).
Example 6
Soil disinfection: when the soil is ploughed (the soil temperature needs to be more than 5 ℃), when the soil is ploughed by about 40 cm, 42% trichloroisocyanuric acid wettable powder is diluted into 1000 times of liquid by adopting a secondary dilution method, and the target of the soil is directly sterilized and disinfected by adopting the modes of sprinkling irrigation, drip irrigation, micro-irrigation and direct irrigation; 2. dipping roots before planting: before field planting of crops, diluting 40% trichloroisocyanuric acid wettable powder into 500 times of liquid by adopting a secondary dilution method, and soaking the whole seedling lump into the liquid medicine for dipping; 3. irrigating roots during planting: after the field planting of crops is finished, filling the roots of the crops with 500 times of 36% trichloroisocyanuric acid wettable powder once; 4. performing punching after planting: and 7 days after the crops are planted, the crops are flushed and applied by 1000 times of liquid of the microbial inoculum.
Comparative example 1
The same as in example 1 except that 70% of pentachloronitrobenzene WP was used.
Comparative example 2
The same as in example 1, except that clean water was used as a blank.
(1) Disease control is carried out on pepper planted in a greenhouse for six years by adopting the methods of example 1, comparative example 1 and comparative example 2, and the control effect is shown in table 1:
TABLE 1
| Transplanting seedling number (plant) | Number of live seedlings (plant/shed) | Survival Rate (%) | |
| Example 1 | 360 | 352 | 97.78 |
| Comparative example 1 | 360 | 323 | 89.72 |
| Comparative example 2 | 360 | 261 | 72.5 |
Data in the table are the average of three replicates
The table above shows that the control effect on continuous cropping of hot peppers in a greenhouse of 6 years is good, the live seedling rate is as high as 97.78%, compared with the comparative example 1, the live seedling rate is improved by 8.06%, the phenomenon of death is greatly reduced, the survival rate of hot pepper seedlings is improved, and the problem of continuous cropping obstacles of hot peppers can be effectively solved.
(2) Disease control was performed on peppers planted in a three-year field plot by the methods of example 1, comparative example 1 and comparative example 2, and the control effects are shown in table 2:
data in the table are the average of triplicates
The table above shows that the control effect on pepper phytophthora blight in a field plot of 3 years of continuous cropping is obvious, the control effects of 7d, 15d and 30d after transplanting are respectively 100%, 94.63% and 86.32%, are sequentially improved by 15.97%, 22.17% and 27.22% compared with the control effect of the comparison example 1, and the control effect is more obvious along with the extension of disinfection days and is obviously superior to a control medicament, so that the aims of preventing diseases and increasing yield of pepper in the whole growth period are achieved, and the continuous cropping obstacle problem of pepper is effectively solved.
Finally, it should be noted that the above-mentioned description is only a preferred embodiment of the present invention, and those skilled in the art can make various similar representations without departing from the spirit and scope of the present invention.
Claims (10)
1. A method for controlling crop soil-borne diseases by using trichloroisocyanuric acid is characterized by comprising the following steps:
s1, deeply ploughing soil of soil-borne diseases of crops;
s2, applying trichloroisocyanuric acid to deeply ploughed soil by adopting a spraying method, a soil mixing and spreading method or an irrigation method;
s3, soaking the roots of the crop seedlings with trichloroisocyanuric acid diluent;
s4, after the field planting of the crop seedlings is finished, root irrigation is carried out by using trichloroisocyanuric acid diluent;
s5, after the crops are planted for 5-10 days, the crops are applied by using a microbial agent.
2. The method for controlling soil-borne diseases of crops by using trichloroisocyanuric acid as claimed in claim 1, wherein the spraying method in S2 comprises: when the land is ploughed to a depth of 20-40 cm, 30-50% trichloroisocyanuric acid wettable powder is diluted by adding water by 300 times of 100 times to prepare trichloroisocyanuric acid diluent, the trichloroisocyanuric acid diluent is uniformly sprayed to the ploughed part, the ploughed part can be leveled after spraying, the leveled soil surface layer is sprayed once, and the soil can be used after 4-8 hours.
3. The method for controlling soil-borne diseases of crops by using trichloroisocyanuric acid as claimed in claim 1, wherein the soil-mixed spreading method in S2 comprises: when the land is ploughed to 20-40 cm deep, 30-50% trichloroisocyanuric acid wettable powder and fine soil are mixed according to the proportion of 1: 10-1: 30, uniformly and directly spreading the mixture on the layer of the plowed soil, leveling the land after spreading, and using the soil after 4-8 hours.
4. The method for controlling soil-borne diseases of crops by using trichloroisocyanuric acid as claimed in claim 1, wherein the irrigation method in S2 comprises: 30-50% trichloroisocyanuric acid wettable powder is diluted by 100-fold addition of water to form trichloroisocyanuric acid diluent, and the trichloroisocyanuric acid diluent directly performs sterilization and disinfection on a soil target in the modes of sprinkling irrigation, drip irrigation, micro-irrigation and direct irrigation.
5. The method for controlling soil-borne diseases of crops by using trichloroisocyanuric acid according to any one of claims 1 to 4, wherein in S3: the trichloroisocyanuric acid diluent is prepared by diluting 36-42% trichloroisocyanuric acid wettable powder with water to 500-1500 times.
6. The method for controlling soil-borne diseases of crops by using trichloroisocyanuric acid as claimed in claim 1, wherein in S4: the trichloroisocyanuric acid diluent is prepared by diluting 36-42% trichloroisocyanuric acid wettable powder by 300-fold addition of water.
7. The method for controlling soil-borne diseases of crops by using trichloroisocyanuric acid as claimed in claim 3 or 4, wherein the trichloroisocyanuric acid is prepared from the following raw materials in percentage by weight: the dosage per mu of the trichloroisocyanuric acid wettable powder is 500-1000 g.
8. The method for controlling soil-borne diseases of crops by using trichloroisocyanuric acid as claimed in claim 8, wherein in S2: the soil temperature during plowing is more than 5 ℃.
9. The method for controlling soil-borne diseases of crops by using trichloroisocyanuric acid as claimed in claim 1, wherein the method comprises the following steps: the trichloroisocyanuric acid diluent is prepared by adopting a secondary dilution method.
10. The application of trichloroisocyanuric acid in preventing and controlling soil-borne diseases of crops is characterized in that: the trichloroisocyanuric acid is 30-50% of trichloroisocyanuric acid wettable powder and/or trichloroisocyanuric acid aqueous solution; the crop soil-borne diseases include, but are not limited to, blight (Fusarium sp.), Verticillium wilt (Verticillium dahliae), blight (Phytophthora capsici Leonian), scab (Streptomyces scabies), powdery scab (spongospora brandianan), dry rot (Fusarium sp.), bacterial wilt (ralstonia natarum) and southern blight (selectorium rolii Sacc).
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| JP2020125283A (en) * | 2019-01-31 | 2020-08-20 | 国立研究開発法人農業・食品産業技術総合研究機構 | Composition for controlling soilborne disease and method for controlling soilborne disease of plant |
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