CN107593721B - A kind of method, defoliant and its application of hemp disleave - Google Patents

A kind of method, defoliant and its application of hemp disleave Download PDF

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Publication number
CN107593721B
CN107593721B CN201710974924.5A CN201710974924A CN107593721B CN 107593721 B CN107593721 B CN 107593721B CN 201710974924 A CN201710974924 A CN 201710974924A CN 107593721 B CN107593721 B CN 107593721B
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hemp
application
amount
active material
chloro
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CN107593721A (en
Inventor
邱财生
王玉富
郭媛
龙松华
王慧
郝冬梅
钟国乾
范志芳
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Institute of Bast Fiber Crops of CAAS
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Institute of Bast Fiber Crops of CAAS
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Priority to CN201710974924.5A priority Critical patent/CN107593721B/en
Publication of CN107593721A publication Critical patent/CN107593721A/en
Priority to PCT/CN2018/099864 priority patent/WO2019076112A1/en
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Priority to ZA2019/07578A priority patent/ZA201907578B/en
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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
    • A01N37/18—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 the group —CO—N<, e.g. carboxylic acid amides or imides; Thio analogues thereof
    • A01N37/26—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 the group —CO—N<, e.g. carboxylic acid amides or imides; Thio analogues thereof containing the group; Thio analogues 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
    • A01N39/00—Biocides, pest repellants or attractants, or plant growth regulators containing aryloxy- or arylthio-aliphatic or cycloaliphatic compounds, containing the group or, e.g. phenoxyethylamine, phenylthio-acetonitrile, phenoxyacetone
    • A01N39/02—Aryloxy-carboxylic acids; Derivatives thereof
    • A01N39/04—Aryloxy-acetic acids; Derivatives 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
    • A01N41/00—Biocides, pest repellants or attractants, or plant growth regulators containing organic compounds containing a sulfur atom bound to a hetero atom
    • A01N41/02—Biocides, pest repellants or attractants, or plant growth regulators containing organic compounds containing a sulfur atom bound to a hetero atom containing a sulfur-to-oxygen double bond
    • A01N41/10—Sulfones; Sulfoxides
    • 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
    • A01N43/66—1,3,5-Triazines, not hydrogenated and not substituted at the ring nitrogen atoms
    • A01N43/68—1,3,5-Triazines, not hydrogenated and not substituted at the ring nitrogen atoms with two or three nitrogen atoms directly attached to ring carbon atoms
    • A01N43/70—Diamino—1,3,5—triazines with only one oxygen, sulfur or halogen atom or only one cyano, thiocyano (—SCN), cyanato (—OCN) or azido (—N3) group directly attached to a ring carbon atom
    • 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
    • A01N47/00—Biocides, pest repellants or attractants, or plant growth regulators containing organic compounds containing a carbon atom not being member of a ring and having no bond to a carbon or hydrogen atom, e.g. derivatives of carbonic acid
    • A01N47/08—Biocides, pest repellants or attractants, or plant growth regulators containing organic compounds containing a carbon atom not being member of a ring and having no bond to a carbon or hydrogen atom, e.g. derivatives of carbonic acid the carbon atom having one or more single bonds to nitrogen atoms
    • A01N47/28—Ureas or thioureas containing the groups >N—CO—N< or >N—CS—N<
    • A01N47/36—Ureas or thioureas containing the groups >N—CO—N< or >N—CS—N< containing the group >N—CO—N< directly attached to at least one heterocyclic ring; Thio analogues thereof

Abstract

The present invention relates to method, defoliant and its applications of a kind of hemp disleave, before the method for hemp disleave of the present invention is included in hemp harvest, apply the chloro- 4- ethylamino- -6- isopropylamine base -1 of 2-, 3,5- triazines, the chloro- 4- ethylamino- -6- isopropylamine base -1 of 2-, 3, the amount of application of 5- triazine is 20~450g active material/mu, it is preferable that 90g active material/mu.The method of the invention has the advantages that efficient, low toxicity, do not damage hemp quality and dosage is few economical and practical.

Description

A kind of method, defoliant and its application of hemp disleave
Technical field
The present invention relates to defoliant fields, in particular to method, defoliant and its application of a kind of hemp disleave.
Background technique
Hemp, Classification system are Cannaabis Salival, and popular name is Chinese fiber crops, cold fiber crops, hemp, the male plant of hemp etc., and English is entitled Hemp, true hemp or common hemp belong to Cannabaceae Cannabis annual herb crop.Big straw is 1~5 meter high, Stem heart wood is around wrapped in one layer of bast, includes the leaf palmation, by 5~11 decomposite leaf groups there are many fiber At zigzag decomposite leaf about 50mm~150mm long, 10mm~20mm wide.Hemp can be used as weave linen, production fishing net, Rope, linen thread, seat through etc., and manufacture Modern cigarette industry paper even preferred raw materials of money etc..
It is more due to, containing tetrahydrocannabinol (THC), being largely used to manufacture excitant and drugs in hemp since modern age Number western countries prohibite plantation hemp, and the yield of hemp declines year by year, and the application study of hemp also tends to standstill state.But The emergence again of natural fiber, hemp have the advantages that many significant since with last century the nineties, comprising: hemp growth Adaptability is extremely strong, no disease and pests harm, and hemp is resistance to macerate sun-proof, Anti-moth-eating, and absorption gas permeability is strong, antistatic, antiultraviolet and suppression The performance of bacterium is strong, meanwhile, low THC Hemp Varieties breeding success, therefore, various countries release the plantation ban of hemp one after another therewith, China is the largest the production country of fiber hemp at present.With the increasingly increase of hemp demand, the plantation of hemp is added The improvement of work method has important economic results in society.
And a great problem of the hemp in plantation process is, and due to remaining green when it is due to become yellow and ripe, when hemp reaches the harvest season, leaf Piece is still less to fall off.On the one hand, the presence of blade causes the difficulty of mechanical harvest, and on the other hand, blade can also extend waste of flax Shine dry spell, stalk dip time, can also make raw jute quality decline.Therefore, big anesthesia stem before impregnation, needs artificial Or mechanical disleave, it is time-consuming and laborious, alternatively, spraying chloric acid magnesium solution before hemp harvest, realize the Chemical defoliation of hemp.And chloric acid The dosage of magnesium big (per hectare needs 28 kilograms of the magron using 60%), toxicity are also larger, and use is not convenient enough.
Modern society is higher and higher to the economy of defoliant and environmental requirement, especially in the side such as effect, residual, toxicity Face.Therefore, this field needs that exploitation defoliation effect is good, less toxic, to damage small and economical and practical hemp to hemp quality de- Leaf agent and corresponding hemp disleave method.
In view of this, the present invention is specifically proposed.
Summary of the invention
The first object of the present invention is to provide a kind of method of hemp disleave, and the method uses the chloro- 4- ethylamino--of 2- 6- isopropylamine base -1,3,5-triazines to maturity period hemp carry out disleave, have efficiently, low toxicity, do not damage hemp quality and The few economical and practical advantage of dosage.
The second object of the present invention is to provide a kind of method of hemp disleave, and the method uses the chloro- 4- ethylamino--of 2- The composition of 6- isopropylamine base -1,3,5-triazines and other defoliants carries out disleave to maturity period hemp, has and imitates, is less toxic, no Damage hemp quality and the few economical and practical advantage of dosage.
The third object of the present invention is to provide a kind of defoliant, the defoliant have efficiently, low toxicity, do not damage hemp Fiber quality and the few economical and practical advantage of dosage.
The fourth object of the present invention is to provide application of the above-mentioned defoliant in hemp disleave, and the application has disleave It is high-efficient, less toxic, do not damage the few economical and practical advantage of hemp quality and dosage.
In order to realize above-mentioned purpose of the invention, the following technical scheme is adopted:
A kind of method of hemp disleave, the method includes applying the chloro- 4- ethylamino- -6- isopropyl of 2- before hemp harvests Amido -1,3,5-triazines, the amount of application of the chloro- 4- ethylamino- -6- isopropylamine base -1,3,5-triazines of 2- are 20~450g activity Substance/mu, it is preferable that 90g active material/mu.
A kind of method of hemp disleave, the method includes applying the chloro- 4- ethylamino- -6- isopropyl of 2- before hemp harvests Amido -1,3,5-triazines and other defoliants, the amount of application of the chloro- 4- ethylamino- -6- isopropylamine base -1,3,5-triazines of 2- are 20~450g active material/mu, the amount of application of other defoliants are 3~80g active material/mu.
A kind of defoliant, the defoliant includes the chloro- 4- ethylamino- -6- isopropylamine base -1,3,5-triazines of 2- and other are de- Leaf agent, wherein the mass ratio of the chloro- 4- ethylamino- -6- isopropylamine base -1,3,5-triazines of 2- and other defoliants is 20~ 450:3~80.
Application of the aforementioned defoliant in hemp disleave
Specific embodiment
The present invention relates to a kind of methods of hemp disleave, and the method includes applying the chloro- 4- ethamine of 2- before hemp harvests Base -6- isopropylamine base -1,3,5-triazines, the amount of application of the chloro- 4- ethylamino- -6- isopropylamine base -1,3,5-triazines of 2- are 20 ~450g active material/mu, it is preferable that 90g active material/mu.
In some embodiments, refer to that hemp harvests first 2 weeks before the hemp harvest.
In some embodiments, the chloro- 4- ethylamino- -6- isopropylamine base -1,3,5-triazines of the 2- and its are sprayed Water consumption when his defoliant is 20~200L/ mus；Preferably, the water consumption is 120L/ mus.
In some specific embodiments, the application of the chloro- 4- ethylamino- -6- isopropylamine base -1,3,5-triazines of 2- Amount is 20,40,90,140,190,240,290,340,390,440g active material/mu.
The invention further relates to a kind of methods of hemp disleave, and the method includes applying the chloro- 4- second of 2- before hemp harvests Amido -6- isopropylamine base -1,3,5-triazines and other defoliants, the chloro- 4- ethylamino- -6- isopropylamine base -1,3 of 2-, 5- tri- The amount of application of piperazine is 20~450g active material/mu, and the amount of application of other defoliants is 3~217g active material/mu.
In some embodiments, refer to that hemp harvests first 2 weeks before the hemp harvest.
In some embodiments, the chloro- 4- ethylamino- -6- isopropylamine base -1,3,5-triazines of the 2- and its are sprayed Water consumption when his defoliant is 20~200L/ mus, it is preferable that the water consumption is 120L/ mus.
In some specific embodiments, the application of the chloro- 4- ethylamino- -6- isopropylamine base -1,3,5-triazines of 2- Amount is 20,40,90,140,190,240,290,340,390,440g active material/mu；
In some specific embodiments, other described defoliants be selected from Acetochlor, mesotrione, dimethyl tetrachloride sodium, One of Thidiazuron is a variety of；
Preferably, other described defoliants are Acetochlor and Thidiazuron；The amount of application of the Acetochlor is living for 50~100g Property substance/mu；It is highly preferred that 75g active material/mu；The amount of application of the Thidiazuron is 12.5~60g active material/mu, excellent Selection of land, 17g active material/mu；
Preferably, other described defoliants are mesotrione, the amount of application of the mesotrione be 3~12g active material/ Mu；It is highly preferred that 5g active material/mu；
Preferably, other described defoliants are mesotrione and Thidiazuron, and the amount of application of the mesotrione is 3~12g Active material/mu, it is highly preferred that 5g active material/mu；The amount of application of the Thidiazuron is 12.5~60g active material/mu, It is highly preferred that 17g active material/mu；
Preferably, other described defoliants are dimethyl tetrachloride sodium, and the amount of application of the dimethyl tetrachloride sodium is 11~45g/ mus, Preferably, 28g active material/mu；
Preferably, other described defoliants are mesotrione, dimethyl tetrachloride sodium and Thidiazuron, the application of the mesotrione Amount is 3~12g active material/mu, it is highly preferred that 75g active material/mu；The amount of application of the dimethyl tetrachloride sodium be 11~ 45g/ mus, it is highly preferred that 28g active material/mu；The amount of application of the Thidiazuron is 12.5~60g active material/mu, more excellent Selection of land, 17g active material/mu.
It is excellent the method also includes applying other plant protective agent to the hemp in some specific embodiments Selection of land, the plant protection product are selected from one of Insecticides (tech) & Herbicides (tech), fungicide, safener, growth regulator and fertilizer Or it is a variety of.
The invention further relates to a kind of defoliant, the defoliant includes the chloro- 4- ethylamino- -6- isopropylamine base -1,3 of 2-, 5- Triazine and other defoliants, wherein the chloro- 4- ethylamino- -6- isopropylamine base of 2- -1,3,5-triazines and other defoliants matter Amount is than being 20~450:3~217.
In some specific embodiments, other described defoliant Acetochlors, mesotrione, dimethyl tetrachloride sodium, thiophene benzene It is one of grand or a variety of；
Preferably, other described defoliants be Acetochlor and Thidiazuron, chloro- isopropylamine base -1 4- ethylamino- -6- 2-, The mass ratio of 3,5- triazines, the Acetochlor and the Thidiazuron is 20~450:50~100:12.5~60, it is highly preferred that institute Stating mass ratio is 90:75:17.
Preferably, other described defoliants are mesotrione, the chloro- 4- ethylamino- -6- isopropylamine base -1,3 of 2-, 5- tri- The mass ratio of piperazine and the mesotrione is 20~450:3~12；It is highly preferred that the mass ratio is 90:5.
Preferably, other described defoliants are mesotrione and Thidiazuron, the chloro- 4- ethylamino- -6- isopropylamine base-of 2- The mass ratio of 1,3,5-triazines, the mesotrione and the Thidiazuron is 20~450:3~12:12.5~60；It is highly preferred that The mass ratio is 90:5:17.
Preferably, other described defoliants are dimethyl tetrachloride sodium, the chloro- 4- ethylamino- -6- isopropylamine base -1,3 of 2-, 5- The mass ratio of triazine and the dimethyl tetrachloride sodium is 20~450:11~45；It is highly preferred that the mass ratio is 90:28.
Preferably, other described defoliants are mesotrione, dimethyl tetrachloride sodium and Thidiazuron, the chloro- 4- ethylamino--of 2- 6- isopropylamine base -1,3,5-triazines, the mesotrione, the dimethyl tetrachloride sodium and the Thidiazuron mass ratio be 20~ 450:3~12g:11~45:12.5~60, it is highly preferred that the mass ratio is 90:5:28:17.
It further include auxiliary agent in the defoliant in some specific embodiments, the auxiliary agent is selected from inert material, table One of face activating agent, solvent and other additives are a variety of.
In some specific embodiments, the dosage form of the defoliant is selected from pulvis, missible oil, emulsion, spraying, suspension Agent, dispersing agent, dust agent or granule.
It further include other plant protective agent, the other plant in the defoliant in some specific embodiments Protective agent is selected from one of Insecticides (tech) & Herbicides (tech), fungicide, safener, growth regulator and fertilizer or a variety of.
The invention further relates to application of the above-mentioned defoliant in hemp disleave.
Compared with prior art, the invention has the benefit that
(1) the method for the invention is using the chloro- 4- ethylamino- -6- isopropylamine base -1,3,5-triazines of 2- to big before harvest Fiber crops carry out disleave, have and are up to 70~80% to the disleave efficiency of hemp, disleave is high-efficient；To people and animals' low toxicity, use simultaneously It measures low, compared with traditional hemp defoliant magron, has the advantages that toxicity is low, usage amount is low, economical and practical；In addition, with Paraquat is compared, small toxicity, and will not generate injury to the fiber quality of big anesthesia stem, will not generate dead fiber crops；
(2) the method for the invention, defoliant and its application be also further by chloro- isopropylamine base -1 4- ethylamino- -6- 2-, 3,5- triazines and other defoliants are combined, and can further enhance its defoliation effect to hemp, and disleave rate is up to 87~ 100%.
Embodiment of the present invention is described in detail below in conjunction with embodiment, but those skilled in the art will Understand, the following example is merely to illustrate the present invention, and is not construed as limiting the scope of the invention.It is not specified in embodiment specific Condition person carries out according to conventional conditions or manufacturer's recommended conditions.Reagents or instruments used without specified manufacturer is The conventional products obtained can be bought by city.
Embodiment 1
Under stirring, the chloro- 4- ethylamino- -6- isopropylamine base -1,3,5-triazines of 2- that effective content is 45% is hanged Floating agent is added to the water, and generates uniform spray liquid, wherein the chloro- 4- ethylamino- -6- isopropylamine base of 2- -1,3,5-triazines suspends The dosage of agent is 200mL/ mus, and water consumption is 120L/ mus.
The spray liquid of preparation is sprayed onto the maturity period close on the hemp of harvest (harvest the last fortnight or so), is evaluated after two weeks The defoliation effect of the hemp, in which:
0%=no recognizable effect compared with untreated plant；
All leaves of 100%=fall off.
Embodiment 2
Hemp is handled referring to 1 the method for embodiment, difference is that, the chloro- 4- ethylamino- -6- isopropylamine base-of 2- The dosage of 1,3,5-triazines suspending agent is 45mL/ mus.
Embodiment 3
Hemp is handled referring to 1 the method for embodiment, difference is that, the chloro- 4- ethylamino- -6- isopropylamine base-of 2- The dosage of 1,3,5-triazines suspending agent is 1000mL/ mus.
Embodiment 4
Handle hemp referring to 1 the method for embodiment, difference is that, the spray liquid the preparation method is as follows: stirring It mixes under state, the chloro- 4- ethylamino- -6- isopropylamine base of the 2- -1,3,5-triazines suspending agent, effective content for being 45% by effective content The Acetochlor solution that Thidiazuron and effective content for 50% are 50% is added to the water, and generates uniform spray liquid, wherein 2- The dosage of chloro- 4- ethylamino- -6- isopropylamine base -1,3,5-triazines suspending agent is 200mL/ mus, and the dosage of Thidiazuron is 33.3mL/ Mu, the dosage of Acetochlor are 150mL/ mus, and water consumption is 120L/ mus.
Embodiment 5
Handle hemp referring to 1 the method for embodiment, difference is that, the spray liquid the preparation method is as follows: stirring Mix under state, by effective content be 45% the chloro- 4- ethylamino- -6- isopropylamine base -1,3,5-triazines suspending agent of 2- and effectively contain Amount is added to the water for 15% mesotrione, generates uniform spray liquid, wherein the chloro- 4- ethylamino- -6- isopropylamine base-of 2- The dosage of 1,3,5-triazines suspending agent is 200mL/ mus, and the dosage of mesotrione is 33.3mL/ mus, and water consumption is 120L/ mus.
Embodiment 6
Handle hemp referring to 1 the method for embodiment, difference is that, the spray liquid the preparation method is as follows: stirring It mixes under state, the chloro- 4- ethylamino- -6- isopropylamine base of the 2- -1,3,5-triazines suspending agent, effective content for being 45% by effective content The Thidiazuron that mesotrione and effective content for 15% are 50% is added to the water, and generates uniform spray liquid, wherein 2- The dosage of chloro- 4- ethylamino- -6- isopropylamine base -1,3,5-triazines suspending agent is 200mL/ mus, and the dosage of mesotrione is 33.3mL/ mus, the dosage of Thidiazuron is 33.3mL/ mus, and water consumption is 120L/ mus.
Embodiment 7
Handle hemp referring to 1 the method for embodiment, difference is that, the spray liquid the preparation method is as follows: stirring Mix under state, by effective content be 45% the chloro- 4- ethylamino- -6- isopropylamine base -1,3,5-triazines suspending agent of 2- and effectively contain Amount is added to the water for the 56% solvable pulvis of dimethyl tetrachloride sodium, generates uniform spray liquid, wherein the chloro- 4- ethylamino- -6- of 2- Isopropylamine base -1,3,5-triazines suspending agent dosage is 200mL/ mus, and the dosage of the solvable pulvis of dimethyl tetrachloride sodium is 50mL/ mus, Water consumption is 120L/ mus.
Embodiment 8
Handle hemp referring to 1 the method for embodiment, difference is that, the spray liquid the preparation method is as follows: stirring It mixes under state, the chloro- 4- ethylamino- -6- isopropylamine base of the 2- -1,3,5-triazines suspending agent, effective content for being 45% by effective content For 15% mesotrione, effective content be 56% the solvable pulvis of dimethyl tetrachloride sodium and effective content be 50% Thidiazuron add Enter into water, generate uniform spray liquid, wherein the use of the chloro- 4- ethylamino- -6- isopropylamine base -1,3,5-triazines suspending agent of 2- Amount is 200mL/ mus, and the dosage of mesotrione is 33.3mL/ mus, and the dosage of the solvable pulvis of dimethyl tetrachloride sodium is 50mL/ mus, thiophene benzene Grand dosage is 33.3mL/ mus, and water consumption is 120L/ mus.
Comparative example 1
Maturity period close to the hemp of harvest, does not spray any defoliant.
Comparative example 2
Handle hemp referring to 1 the method for embodiment, difference is that, the spray liquid the preparation method is as follows: stirring It mixes under state, the Acetochlor solution that effective content is 50% is added to the water, generates uniform spray liquid, wherein Acetochlor Dosage be 150mL/ mu, water consumption be 120L/ mus.
Comparative example 3
Handle hemp referring to 1 the method for embodiment, difference is that, the spray liquid the preparation method is as follows: stirring It mixes under state, the Thidiazuron that effective content is 50% is added to the water, generates uniform spray liquid, wherein the use of Thidiazuron Amount is 50mL/ mus, and water consumption is 120L/ mus.
Comparative example 4
Handle hemp referring to 1 the method for embodiment, difference is that, the spray liquid the preparation method is as follows: stirring It mixes under state, the solvable pulvis of dimethyl tetrachloride sodium that effective content is 56% is added to the water, uniform spray liquid is generated, In, the dosage of the solvable pulvis of dimethyl tetrachloride sodium is 50mL/ mus, and water consumption is 120L/ mus.
Comparative example 5
Handle hemp referring to 1 the method for embodiment, difference is that, the spray liquid the preparation method is as follows: stirring It mixes under state, the paraquat that effective content is 20% is added to the water, generates uniform spray liquid, wherein the use of paraquat Amount is 260mL/ mus, and water consumption is 120L/ mus.
Comparative example 6
Handle hemp referring to 1 the method for embodiment, difference is that, the spray liquid the preparation method is as follows: stirring It mixes under state, the paraquat that effective content is 20% is added to the water, generates uniform spray liquid, wherein the use of paraquat Amount is 340mL/ mus, and water consumption is 120L/ mus.
Experimental example 1
Examples 1 to 8 and 1~6 the method for comparative example are detected treated the disleave rate and dead numb rate of hemp, specifically Testing result is referring to table 1.According to result shown in table 1 it is found that using the chloro- 4- ethylamino- -6- isopropylamine base -1,3,5-triazines of 2- and The combination of itself and other defoliants can effectively make hemp disleave, while not influence the fiber quality of big anesthesia stem.And it is independent The effective disleave of hemp cannot then be made using other defoliants, although can make hemp disleave, dead fiber crops rate is high, seriously affects The quality of hemp.
The disleave rate of 1 hemp of table and dead numb rate
Finally, it should be noted that the above embodiments are only used to illustrate the technical solution of the present invention., rather than its limitations；To the greatest extent Present invention has been described in detail with reference to the aforementioned embodiments for pipe, but those skilled in the art should understand that: its It is still possible to modify the technical solutions described in the foregoing embodiments, or to some or all of the technical features It is equivalently replaced；And these are modified or replaceed, various embodiments of the present invention skill that it does not separate the essence of the corresponding technical solution The range of art scheme.

Claims (11)

1. a kind of method of hemp disleave, which is characterized in that the method includes applying the chloro- 4- ethamine of 2- before hemp harvests Base -6- isopropylamine base -1,3,5-triazines, the amount of application of the chloro- 4- ethylamino- -6- isopropylamine base -1,3,5-triazines of 2- is 20 ~ 450g active material/mu.
2. the method according to claim 1, wherein the chloro- 4- ethylamino- -6- isopropylamine base -1,3 of the 2-, 5- The amount of application of triazine is 90g active material/mu.
3. a kind of method of hemp disleave, which is characterized in that the method includes applying the chloro- 4- ethamine of 2- before hemp harvests Base -6- isopropylamine base -1,3,5-triazines and other defoliants；The chloro- 4- ethylamino- -6- isopropylamine base -1,3,5-triazines of 2- Amount of application be 20 ~ 450g active material/mu；The amount of application of other defoliants is 3 ~ 217g active material/mu.
4. according to the method described in claim 3, it is characterized in that, other described defoliants are selected from Acetochlor, mesotrione, two One of first tetrachloro sodium, Thidiazuron are a variety of.
5. according to the method described in claim 4, it is characterized in that, other described defoliants are Acetochlor and Thidiazuron；It is described The amount of application of Acetochlor is 50 ~ 100g active material/mu；The amount of application of the Thidiazuron is 12.5 ~ 60g active material/mu.
6. according to the method described in claim 4, the nitre sulphur is careless it is characterized in that, other described defoliants are mesotrione The amount of application of ketone is 3 ~ 12g active material/mu.
7. according to the method described in claim 4, it is characterized in that, other described defoliants are mesotrione and Thidiazuron, institute The amount of application for stating mesotrione is 3 ~ 12g active material/mu, and the amount of application of the Thidiazuron is 12.5 ~ 60g active material/mu.
8. according to the method described in claim 4, it is characterized in that, other described defoliants are dimethyl tetrachloride sodium, the diformazan The amount of application of tetrachloro sodium is 11 ~ 45g/ mus.
9. according to the method described in claim 4, it is characterized in that, other described defoliants are mesotrione, dimethyl tetrachloride sodium And Thidiazuron, the amount of application of the mesotrione are 3 ~ 12g active material/mu, the amount of application of the dimethyl tetrachloride sodium is 11 ~ 45g/ mus, the amount of application of the Thidiazuron is 12.5 ~ 60g active material/mu.
10. any method according to claim 1 ~ 9, which is characterized in that the method also includes applying to the hemp Other plant protective agent.
11. according to the method described in claim 10, it is characterized in that, the plant protection product is selected from Insecticides (tech) & Herbicides (tech), kills One of epiphyte pharmaceutical, safener, growth regulator and fertilizer are a variety of.
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