CN115997787B - Cold region rice dehydrating agent and preparation method thereof - Google Patents
Cold region rice dehydrating agent and preparation method thereof Download PDFInfo
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- CN115997787B CN115997787B CN202310050538.2A CN202310050538A CN115997787B CN 115997787 B CN115997787 B CN 115997787B CN 202310050538 A CN202310050538 A CN 202310050538A CN 115997787 B CN115997787 B CN 115997787B
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- 235000007164 Oryza sativa Nutrition 0.000 title claims abstract description 70
- 235000009566 rice Nutrition 0.000 title claims abstract description 70
- 239000012024 dehydrating agents Substances 0.000 title claims abstract description 29
- 238000002360 preparation method Methods 0.000 title claims abstract description 23
- 240000007594 Oryza sativa Species 0.000 title 1
- OSVXSBDYLRYLIG-UHFFFAOYSA-N dioxidochlorine(.) Chemical compound O=Cl=O OSVXSBDYLRYLIG-UHFFFAOYSA-N 0.000 claims abstract description 100
- 241000209094 Oryza Species 0.000 claims abstract description 72
- 239000004155 Chlorine dioxide Substances 0.000 claims abstract description 50
- 235000019398 chlorine dioxide Nutrition 0.000 claims abstract description 50
- GEHMBYLTCISYNY-UHFFFAOYSA-N Ammonium sulfamate Chemical compound [NH4+].NS([O-])(=O)=O GEHMBYLTCISYNY-UHFFFAOYSA-N 0.000 claims abstract description 38
- 239000003381 stabilizer Substances 0.000 claims abstract description 33
- XLYOFNOQVPJJNP-UHFFFAOYSA-N water Substances O XLYOFNOQVPJJNP-UHFFFAOYSA-N 0.000 claims abstract description 29
- 239000003463 adsorbent Substances 0.000 claims abstract description 26
- 239000003795 chemical substances by application Substances 0.000 claims abstract description 23
- 239000004094 surface-active agent Substances 0.000 claims abstract description 13
- 238000000034 method Methods 0.000 claims abstract description 9
- 238000003756 stirring Methods 0.000 claims description 28
- VYPSYNLAJGMNEJ-UHFFFAOYSA-N Silicium dioxide Chemical compound O=[Si]=O VYPSYNLAJGMNEJ-UHFFFAOYSA-N 0.000 claims description 24
- 239000000839 emulsion Substances 0.000 claims description 18
- WOWHHFRSBJGXCM-UHFFFAOYSA-M cetyltrimethylammonium chloride Chemical compound [Cl-].CCCCCCCCCCCCCCCC[N+](C)(C)C WOWHHFRSBJGXCM-UHFFFAOYSA-M 0.000 claims description 13
- RDMZIKMKSGCBKK-UHFFFAOYSA-N disodium;(9,11-dioxido-5-oxoboranyloxy-2,4,6,8,10,12,13-heptaoxa-1,3,5,7,9,11-hexaborabicyclo[5.5.1]tridecan-3-yl)oxy-oxoborane;tetrahydrate Chemical group O.O.O.O.[Na+].[Na+].O1B(OB=O)OB(OB=O)OB2OB([O-])OB([O-])OB1O2 RDMZIKMKSGCBKK-UHFFFAOYSA-N 0.000 claims description 13
- 229920000858 Cyclodextrin Polymers 0.000 claims description 12
- 239000006185 dispersion Substances 0.000 claims description 12
- 239000007788 liquid Substances 0.000 claims description 12
- HFHDHCJBZVLPGP-UHFFFAOYSA-N schardinger α-dextrin Chemical group O1C(C(C2O)O)C(CO)OC2OC(C(C2O)O)C(CO)OC2OC(C(C2O)O)C(CO)OC2OC(C(O)C2O)C(CO)OC2OC(C(C2O)O)C(CO)OC2OC2C(O)C(O)C1OC2CO HFHDHCJBZVLPGP-UHFFFAOYSA-N 0.000 claims description 12
- JBIROUFYLSSYDX-UHFFFAOYSA-M benzododecinium chloride Chemical compound [Cl-].CCCCCCCCCCCC[N+](C)(C)CC1=CC=CC=C1 JBIROUFYLSSYDX-UHFFFAOYSA-M 0.000 claims description 10
- 239000011248 coating agent Substances 0.000 claims description 6
- 238000000576 coating method Methods 0.000 claims description 6
- 238000006243 chemical reaction Methods 0.000 claims description 5
- 230000035484 reaction time Effects 0.000 claims description 2
- 239000000377 silicon dioxide Substances 0.000 claims description 2
- 238000003306 harvesting Methods 0.000 abstract description 12
- 238000001035 drying Methods 0.000 abstract description 11
- 230000000052 comparative effect Effects 0.000 abstract description 4
- 239000005648 plant growth regulator Substances 0.000 abstract description 2
- 230000000694 effects Effects 0.000 description 12
- 238000012360 testing method Methods 0.000 description 12
- 238000011282 treatment Methods 0.000 description 11
- 239000005543 nano-size silicon particle Substances 0.000 description 10
- 235000012239 silicon dioxide Nutrition 0.000 description 10
- 235000013339 cereals Nutrition 0.000 description 9
- 230000006872 improvement Effects 0.000 description 9
- 239000005630 Diquat Substances 0.000 description 7
- 241000196324 Embryophyta Species 0.000 description 7
- SYJFEGQWDCRVNX-UHFFFAOYSA-N diquat Chemical compound C1=CC=[N+]2CC[N+]3=CC=CC=C3C2=C1 SYJFEGQWDCRVNX-UHFFFAOYSA-N 0.000 description 7
- 230000009471 action Effects 0.000 description 5
- 230000018044 dehydration Effects 0.000 description 4
- 238000006297 dehydration reaction Methods 0.000 description 4
- WSFSSNUMVMOOMR-UHFFFAOYSA-N Formaldehyde Chemical compound O=C WSFSSNUMVMOOMR-UHFFFAOYSA-N 0.000 description 3
- 210000002615 epidermis Anatomy 0.000 description 3
- 239000004009 herbicide Substances 0.000 description 3
- 239000010410 layer Substances 0.000 description 3
- 238000011160 research Methods 0.000 description 3
- ZOXJGFHDIHLPTG-UHFFFAOYSA-N Boron Chemical compound [B] ZOXJGFHDIHLPTG-UHFFFAOYSA-N 0.000 description 2
- BFNBIHQBYMNNAN-UHFFFAOYSA-N ammonium sulfate Chemical compound N.N.OS(O)(=O)=O BFNBIHQBYMNNAN-UHFFFAOYSA-N 0.000 description 2
- 229910052921 ammonium sulfate Inorganic materials 0.000 description 2
- 235000011130 ammonium sulphate Nutrition 0.000 description 2
- 229910052796 boron Inorganic materials 0.000 description 2
- 238000010790 dilution Methods 0.000 description 2
- 239000012895 dilution Substances 0.000 description 2
- 239000003814 drug Substances 0.000 description 2
- 235000013305 food Nutrition 0.000 description 2
- 230000035784 germination Effects 0.000 description 2
- 230000002363 herbicidal effect Effects 0.000 description 2
- 230000002147 killing effect Effects 0.000 description 2
- 238000004659 sterilization and disinfection Methods 0.000 description 2
- LEZAYTDLNNEFJT-UHFFFAOYSA-N tetracosasodium octaborate tetrahydrate Chemical compound O.O.O.O.[Na+].[Na+].[Na+].[Na+].[Na+].[Na+].[Na+].[Na+].[Na+].[Na+].[Na+].[Na+].[Na+].[Na+].[Na+].[Na+].[Na+].[Na+].[Na+].[Na+].[Na+].[Na+].[Na+].[Na+].[O-]B([O-])[O-].[O-]B([O-])[O-].[O-]B([O-])[O-].[O-]B([O-])[O-].[O-]B([O-])[O-].[O-]B([O-])[O-].[O-]B([O-])[O-].[O-]B([O-])[O-] LEZAYTDLNNEFJT-UHFFFAOYSA-N 0.000 description 2
- 244000068988 Glycine max Species 0.000 description 1
- 235000010469 Glycine max Nutrition 0.000 description 1
- 241000209140 Triticum Species 0.000 description 1
- 235000021307 Triticum Nutrition 0.000 description 1
- 238000010521 absorption reaction Methods 0.000 description 1
- 239000010441 alabaster Substances 0.000 description 1
- 230000009286 beneficial effect Effects 0.000 description 1
- 230000003115 biocidal effect Effects 0.000 description 1
- OSGAYBCDTDRGGQ-UHFFFAOYSA-L calcium sulfate Chemical compound [Ca+2].[O-]S([O-])(=O)=O OSGAYBCDTDRGGQ-UHFFFAOYSA-L 0.000 description 1
- 238000001816 cooling Methods 0.000 description 1
- 229940079593 drug Drugs 0.000 description 1
- 239000003337 fertilizer Substances 0.000 description 1
- 235000012055 fruits and vegetables Nutrition 0.000 description 1
- 230000012010 growth Effects 0.000 description 1
- 230000036541 health Effects 0.000 description 1
- 239000003094 microcapsule Substances 0.000 description 1
- 239000000203 mixture Substances 0.000 description 1
- 230000004048 modification Effects 0.000 description 1
- 238000012986 modification Methods 0.000 description 1
- 235000016709 nutrition Nutrition 0.000 description 1
- 230000035764 nutrition Effects 0.000 description 1
- 239000007800 oxidant agent Substances 0.000 description 1
- 230000001590 oxidative effect Effects 0.000 description 1
- 239000000575 pesticide Substances 0.000 description 1
- 239000000447 pesticide residue Substances 0.000 description 1
- 230000029553 photosynthesis Effects 0.000 description 1
- 238000010672 photosynthesis Methods 0.000 description 1
- 230000008569 process Effects 0.000 description 1
- 238000012545 processing Methods 0.000 description 1
- 239000011241 protective layer Substances 0.000 description 1
- 235000021067 refined food Nutrition 0.000 description 1
- 238000007493 shaping process Methods 0.000 description 1
- 239000002689 soil Substances 0.000 description 1
- 239000000243 solution Substances 0.000 description 1
- 238000001179 sorption measurement Methods 0.000 description 1
- 238000005507 spraying Methods 0.000 description 1
- 238000003860 storage Methods 0.000 description 1
- 238000009333 weeding Methods 0.000 description 1
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- Agricultural Chemicals And Associated Chemicals (AREA)
Abstract
The invention provides a cold region paddy rice dehydrating agent and a preparation method thereof, which belong to the technical field of plant growth regulators and comprise the following components in percentage by weight: 0.01-1% of ammonium sulfamate, 1-15% of chlorine dioxide, 0.5-10% of stabilizing agent, 0.1-1% of adsorbent, 0.1-0.5% of film forming agent, 1-10% of surfactant and the balance of water. The cold region rice dehydrating agent is applied about 7 days before harvesting, can obviously reduce the water content of rice, is not affected by bad weather, has no residue, and is safe and efficient. Through experimental comparison of three places in two years, the method has obvious differences with other comparative examples, can obviously reduce the drying and airing cost of growers due to overhigh moisture, and obviously improves purchase price.
Description
Technical Field
The invention relates to the technical field of plant growth regulators, in particular to a cold region paddy rice dehydrating agent and a preparation method thereof.
Background
Timely harvesting of rice is an important measure for ensuring the yield and the quality of rice and improving the whole polished rice rate. Too early harvesting, insufficient seeds, reduced thousand seed weight, increased green rice rate, reduced yield and poor quality; too late harvesting can result in excessive grain dropping and spike breaking, excessive scattering loss, reduced moisture content of rice, low rate of whole polished rice processing, reduced appearance quality of rice, reduced commodity performance and high yield. Therefore, it is important to aim at a proper harvest time.
The rice in the cold region of northeast China is greatly affected by weather before harvesting, and is often accompanied by factors such as sudden cooling, rainfall, frost and the like, so that the rice cannot be aged and dehydrated normally, the moisture content is difficult to reach about 16%, the harvested grains are low in price according to the conventional stock standard and can be normally put in storage only by airing or drying so as to reduce the occurrence of mildew and the like, but the field required by natural airing is larger and is difficult to meet, the increased cost is required for drying, and at the moment, the rice is required to be dried under the action of products such as diquat through exogenous herbicides, and the effect is ideal but the problems in the following two aspects are easy to cause:
(1) Diquat belongs to a biocidal herbicide, has a strong contact killing effect on a contact part, and is easy to cause breakage and grain falling of rice stalks and heads, so that yield is reduced;
(2) The time interval from the application to the collection is shorter, so that the application amount is increased for more ideal dehydration effect, the residue of diquat is easy to be increased, the pesticide residue limit standard requirement is not met, and the quality is influenced;
the diquat is mainly used for accelerating the drying and the accelerating of grain crops in seed fields, and the applied grain crops such as rice, wheat, soybean and the like cannot be used as processed foods, feeds and the like, can only be used as seeds, and has a limited application range.
Disclosure of Invention
The invention aims to provide a cold region rice dehydrating agent and a preparation method thereof, which are applied about 7 days before harvesting, can obviously reduce the water content of rice, are not affected by bad weather, have no residue, and are safe and efficient. Through experimental comparison of three places in two years, the method has obvious differences with other comparative examples, can obviously reduce the drying and airing cost of growers due to overhigh moisture, and obviously improves purchase price.
The technical scheme of the invention is realized as follows:
the invention provides a cold region rice dehydrating agent, which comprises the following components in percentage by weight: 0.01-1% of ammonium sulfamate, 1-15% of chlorine dioxide, 0.5-10% of stabilizing agent, 0.1-1% of adsorbent, 0.1-0.5% of film forming agent, 1-10% of surfactant and the balance of water.
As a further improvement of the invention, the invention comprises the following components in percentage by weight: 0.05 to 0.5 percent of ammonium sulfamate, 4 to 8 percent of chlorine dioxide, 2 to 8 percent of stabilizing agent, 0.1 to 0.5 percent of adsorbent, 0.2 to 0.4 percent of film forming agent, 3 to 5 percent of surfactant and the balance of water.
As a further improvement of the present invention, the surfactant is at least one of cetyltrimethylammonium chloride and dodecyldimethylbenzyl ammonium chloride.
As a further improvement of the present invention, the stabilizer is disodium octaborate tetrahydrate.
As a further improvement of the present invention, the adsorbent is nano mesoporous silica.
As a further improvement of the present invention, the film forming agent is cyclodextrin.
The invention further provides a preparation method of the cold region rice dehydrating agent, which comprises the following steps:
firstly, adding water and an adsorbent into a preparation kettle, starting a dispersing machine, adding a surfactant, stirring and dispersing after the addition, and controlling the temperature below 20 ℃ to prepare a transparent dispersion emulsion;
step two, slowly introducing chlorine dioxide into the dispersion emulsion to enable the chlorine dioxide to be fully adsorbed in the adsorbent, and strictly controlling the temperature below 20 ℃ during the feeding;
step three, adding 2/3 of stabilizer into the liquid prepared in the step two, stirring until the stabilizer is completely dissolved, and maintaining the stability of the chlorine dioxide in the emulsion;
step four, adding a film forming agent into the step three, coating the film on the adsorbent, controlling the temperature below 25 ℃, and stirring for reaction;
and step five, sequentially adding the rest 1/3 stabilizer and ammonium sulfamate into the liquid prepared in the step four, controlling the temperature below 15 ℃, and stirring until the rest stabilizer and the ammonium sulfamate are completely dissolved to prepare the cold region rice dehydrating agent.
As a further improvement of the invention, the stirring and dispersing time in the step one is 15-30min.
As a further improvement of the invention, the feeding time in the second step is 15-20min.
As a further improvement of the invention, the stirring reaction time in the fourth step is 1-2h.
The ammonium sulfamate has good oxidability and can absorb water, is a non-selective herbicide, is used for preventing and killing most woody plants, has special application value, can quickly destroy the epidermis layer of the plants after being sprayed on leaf surfaces, is soaked into the protective layer of the plants to play a role in accelerating the drying and weeding, and can quickly metabolize into safe ammonium sulfate to be adsorbed and utilized by soil after the action.
Chlorine dioxide is a strong oxidant, and the application field relates to a plurality of fields such as water treatment, papermaking, food, medical and health, and related research reports begin to appear in China in 2006, and the chlorine dioxide is sequentially applied to the fields such as disinfection and fresh-keeping of foods such as fruits and vegetables, disinfection and formaldehyde pollution removal, but the application of the chlorine dioxide in rice drying promotion is not reported.
The disodium octaborate tetrahydrate is used as an alkaline boron fertilizer, and besides boron element is provided for plants, the disodium octaborate tetrahydrate is used as a stabilizer for ammonium sulfamate and chlorine dioxide, and the chlorine dioxide can maintain good stability in the sodium octaborate tetrahydrate, so that the safety risk caused by high temperature and strong light is avoided.
The invention has the following beneficial effects: according to the invention, the rice dehydrating agent in the cold region damages the epidermis layer of rice plants under the action of ammonium sulfamate; and then the chlorine dioxide is formed into a slow-release microcapsule form through the actions of an adsorbent, a film forming agent and a stabilizing agent, and is sprayed after dilution, absorbed by leaves, stems and roots damaging the epidermis layer, the chlorine dioxide is slowly released, the cell structure of rice plants is rapidly damaged, the photosynthesis generating capacity is inhibited, the plant is rapidly caused to be dysfunctional, the cells are broken, the water and nutrition supply to grains and the like is blocked, the effects of rapid dehydration and drying promotion are achieved, and the dehydration and drying promotion of rice grains can be ensured in a short time. The chlorine dioxide can be quickly volatilized into gas to take effect after being sprayed, so that the bad effect caused by poor absorption of rice in cold regions due to air temperature and the like can be avoided, and the stable and efficient rice dehydration effect can be ensured after the chlorine dioxide is cooperated with ammonium sulfamate. By organically combining chlorine dioxide adsorption and shaping with ammonium sulfamate, the rice in cold regions can be rapidly dehydrated after application, the rice is not affected by bad weather such as temperature, and the harvested rice can reach the direct warehousing standard. In the action process, after the chlorine dioxide contacts with rice leaves and stems, the chlorine dioxide can be rapidly metabolized and can not remain in rice plants; ammonium sulfamate can be quickly degraded into ammonium sulfate after application, and can be absorbed and utilized by plants as macroelements and secondary elements, and can not remain in plants.
The cold region rice dehydrating agent prepared by the invention is applied about 7 days before harvesting, can obviously reduce the water content of rice, is not affected by bad weather, has no residue, and is safe and efficient. Through experimental comparison of three places in two years, the method has obvious differences with other comparative examples, can obviously reduce the drying and airing cost of growers due to overhigh moisture, and obviously improves purchase price.
Detailed Description
The following description of the technical solutions in the embodiments of the present invention will be clear and complete, and it is obvious that the described embodiments are only some embodiments of the present invention, but not all embodiments. All other embodiments, which can be made by those skilled in the art based on the embodiments of the invention without making any inventive effort, are intended to be within the scope of the invention.
Example 1:
the embodiment provides a cold region rice dehydrating agent, which comprises the following components in percentage by weight: ammonium sulfamate 0.01%, chlorine dioxide 1%, disodium octaborate tetrahydrate 0.5%, mesoporous nano silicon dioxide 0.1%, cyclodextrin 0.1%, cetyltrimethylammonium chloride 1% and the balance of water.
The preparation method comprises the following steps:
firstly, adding water and an adsorbent into a preparation kettle, starting a dispersing machine, adding a surfactant, stirring and dispersing for 15min after the addition, and controlling the temperature below 20 ℃ to prepare a transparent dispersion emulsion;
slowly introducing chlorine dioxide into the dispersion emulsion to enable the chlorine dioxide to be fully adsorbed in the adsorbent, wherein the charging time is 15min, and the temperature is strictly controlled below 20 ℃ during charging;
step three, adding 2/3 of stabilizer into the liquid prepared in the step two, stirring until the stabilizer is completely dissolved, and maintaining the stability of the chlorine dioxide in the emulsion;
step four, adding a film forming agent into the step three, coating the film on the adsorbent, controlling the temperature below 25 ℃, and stirring for reaction for 1h;
and step five, sequentially adding the rest 1/3 stabilizer and ammonium sulfamate into the liquid prepared in the step four, controlling the temperature below 15 ℃, and stirring until the rest stabilizer and the ammonium sulfamate are completely dissolved to prepare the cold region rice dehydrating agent.
Example 2:
the embodiment provides a cold region rice dehydrating agent, which comprises the following components in percentage by weight: ammonium sulfamate 0.02%, chlorine dioxide 2%, disodium octaborate tetrahydrate 1%, mesoporous nano silicon dioxide 0.15%, cyclodextrin 0.12%, cetyltrimethylammonium chloride 0.5%, dodecyl dimethyl benzyl ammonium chloride 1% and the balance of water.
The preparation method comprises the following steps:
firstly, adding water and an adsorbent into a preparation kettle, starting a dispersing machine, adding a surfactant, stirring and dispersing for 30min after the addition, and controlling the temperature below 20 ℃ to prepare a transparent dispersion emulsion;
slowly introducing chlorine dioxide into the dispersion emulsion to enable the chlorine dioxide to be fully adsorbed in the adsorbent, wherein the charging time is 20min, and the strict temperature is controlled below 20 ℃ during charging;
step three, adding 2/3 of stabilizer into the liquid prepared in the step two, stirring until the stabilizer is completely dissolved, and maintaining the stability of the chlorine dioxide in the emulsion;
step four, adding a film forming agent into the step three, coating the film on the adsorbent, controlling the temperature below 25 ℃, and stirring for reaction for 2 hours;
and step five, sequentially adding the rest 1/3 stabilizer and ammonium sulfamate into the liquid prepared in the step four, controlling the temperature below 15 ℃, and stirring until the rest stabilizer and the ammonium sulfamate are completely dissolved to prepare the cold region rice dehydrating agent.
Example 3:
the embodiment provides a cold region rice dehydrating agent, which comprises the following components in percentage by weight: ammonium sulfamate 0.04%, chlorine dioxide 3%, disodium octaborate tetrahydrate 3%, mesoporous nano silicon dioxide 0.15%, cyclodextrin 0.15%, cetyltrimethylammonium chloride 1.5%, dodecyl dimethyl benzyl ammonium chloride 1% and the balance of water.
The preparation method comprises the following steps:
firstly, adding water and an adsorbent into a preparation kettle, starting a dispersing machine, adding a surfactant, stirring and dispersing for 20min after the addition, and controlling the temperature below 20 ℃ to prepare a transparent dispersion emulsion;
slowly introducing chlorine dioxide into the dispersion emulsion to enable the chlorine dioxide to be fully adsorbed in the adsorbent, wherein the charging time is 17min, and the temperature is strictly controlled below 20 ℃ during charging;
step three, adding 2/3 of stabilizer into the liquid prepared in the step two, stirring until the stabilizer is completely dissolved, and maintaining the stability of the chlorine dioxide in the emulsion;
step four, adding a film forming agent into the step three, coating the film on the adsorbent, controlling the temperature below 25 ℃, and stirring and reacting for 1.5 hours;
and step five, sequentially adding the rest 1/3 stabilizer and ammonium sulfamate into the liquid prepared in the step four, controlling the temperature below 15 ℃, and stirring until the rest stabilizer and the ammonium sulfamate are completely dissolved to prepare the cold region rice dehydrating agent.
Example 4:
the embodiment provides a cold region rice dehydrating agent, which comprises the following components in percentage by weight: ammonium sulfamate 0.05%, chlorine dioxide 5.5%, disodium octaborate tetrahydrate 3.5%, mesoporous nano silicon dioxide 0.2%, cyclodextrin 0.22%, cetyltrimethylammonium chloride 1.5%, cetyltrimethylammonium chloride 4% and the balance of water.
The preparation method is the same as in example 3.
Example 5:
the embodiment provides a cold region rice dehydrating agent, which comprises the following components in percentage by weight: ammonium sulfamate 0.1%, chlorine dioxide 6%, sodium octaborate tetrahydrate 4%, mesoporous nano silicon dioxide 0.25%, cyclodextrin 0.25%, cetyltrimethylammonium chloride 3.5%, dodecyl dimethyl benzyl ammonium chloride 1% and the balance of water.
The preparation method is the same as in example 3.
Example 6:
the embodiment provides a cold region rice dehydrating agent, which comprises the following components in percentage by weight: ammonium sulfamate 0.2%, chlorine dioxide 6%, disodium octaborate tetrahydrate 4.5%, mesoporous nano silicon dioxide 0.5%, cyclodextrin 0.3%, cetyltrimethylammonium chloride 3.5%, dodecyl dimethyl benzyl ammonium chloride 1.5%, and the balance of water.
The preparation method is the same as in example 3.
Example 7:
the embodiment provides a cold region rice dehydrating agent, which comprises the following components in percentage by weight: ammonium sulfamate 0.5%, chlorine dioxide 8%, disodium octaborate tetrahydrate 6%, mesoporous nano silicon dioxide 0.6%, cyclodextrin 0.35%, cetyl trimethyl ammonium chloride 4%, dodecyl dimethyl benzyl ammonium chloride 1.5% and the balance of water.
The preparation method is the same as in example 3.
Example 8:
the embodiment provides a cold region rice dehydrating agent, which comprises the following components in percentage by weight: ammonium sulfamate 0.7%, chlorine dioxide 10%, disodium octaborate tetrahydrate 8%, mesoporous nano silicon dioxide 0.7%, cyclodextrin 0.4%, cetyl trimethyl ammonium chloride 4%, dodecyl dimethyl benzyl ammonium chloride 1% and the balance of water.
The preparation method is the same as in example 3.
Example 9:
the embodiment provides a cold region rice dehydrating agent, which comprises the following components in percentage by weight: ammonium sulfamate 0.9%, chlorine dioxide 12%, disodium octaborate tetrahydrate 9%, mesoporous nano silicon dioxide 0.9%, cyclodextrin 0.45%, cetyl trimethyl ammonium chloride 4%, dodecyl dimethyl benzyl ammonium chloride 4% and the balance of water.
The preparation method is the same as in example 3.
Example 10:
the embodiment provides a cold region rice dehydrating agent, which comprises the following components in percentage by weight: 1% of ammonium sulfamate, 15% of chlorine dioxide, 10% of disodium octaborate tetrahydrate, 1% of mesoporous nano silicon dioxide, 0.5% of cyclodextrin, 9% of cetyltrimethylammonium chloride, 1% of dodecyl dimethyl benzyl ammonium chloride and the balance of water.
The preparation method is the same as in example 3.
Test example 1
The test is respectively carried out on three bases of Harbin Ala half Law city test bases, harbin city rice research institute test bases of Hei county ancient paddy rice modern agricultural machinery and farmer professional cooperation union society, heilongjiang Jiasi city Heilongjiang province agricultural reclamation academy of sciences of agricultural reclamation of Heilongjiang province. Each treatment in the test base is respectively selected from 100 square rice fields with consistent growth conditions, 5 treatments are counted by A-E, the comparison test is repeated three times, the treatments are arranged randomly, and five comparison examples are as follows: a: comparing with clear water; b: example 4 above was diluted 30-fold (16.7 ppm ammonium sulfamate + 1833.3ppm chlorine dioxide); c: 30-fold dilution with 0.05% ammonium sulfamate (16.7 ppm ammonium sulfamate); d:5.5% chlorine dioxide diluted 30-fold (1833.3 ppm of chlorine dioxide); e: commercial 20% diquat 150-fold (diquat 1333.3 ppm).
The comparison test is repeated for three times, the application period is one week before harvesting, the treatment A-E adopts a foliar uniform spraying mode, the breaking condition and the grain dropping condition of the spike head are counted during harvesting, the moisture content of rice and the residual condition of the medicine used in the rice are counted after harvesting (A is used as a benchmark, B is used for testing the residual of ammonium sulfamate and chlorine dioxide, C is used for testing the residual of ammonium sulfamate, D is used for testing the residual of chlorine dioxide, and E is used for testing the residual of diquat).
The results were as follows:
1. effects of different agent treatments on the base rice of the alabaster test in halbine city (see table 1).
TABLE 1 Effect of different agent treatments on Rice (2021)
2. Influence of different drug treatments on paddy rice of modern agricultural machinery and farmer professional cooperation union society in Harbin city, tonghe county, ancient paddy rice (see Table 2).
TABLE 2 Effect of different agent treatments on Rice (2022)
3. The effect of different agent treatments on the base rice of the institute of paddy rice research at the national academy of agricultural reclamation, and agricultural reclamation, of the same, of the Jiadas, heilongjiang province (see Table 3).
TABLE 3 Effect of different agent treatments on Rice (2022)
From tables 1, 2 and 3, it can be seen that the pesticide composition B of the present invention can significantly reduce the water content of rice during harvesting, has no obvious effect on thousand grain weight, germination vigor and germination rate, has no scion breakage, and has no residue. Through experimental comparison of three places in two years, the method has obvious differences with other comparative examples, is convenient to use, can obviously reduce the drying and airing cost of a planter due to overhigh moisture, and obviously improves the purchase price.
The foregoing description of the preferred embodiments of the invention is not intended to be limiting, but rather is intended to cover all modifications, equivalents, alternatives, and improvements that fall within the spirit and scope of the invention.
Claims (10)
1. The cold region rice dehydrating agent is characterized by comprising the following components in percentage by weight: 0.01-1% of ammonium sulfamate, 1-15% of chlorine dioxide, 0.5-10% of stabilizing agent, 0.1-1% of adsorbent, 0.1-0.5% of film forming agent, 1-10% of surfactant and the balance of water;
the preparation method comprises the following steps:
firstly, adding water and an adsorbent into a preparation kettle, starting a dispersing machine, adding a surfactant, stirring and dispersing after the addition, and controlling the temperature below 20 ℃ to prepare a transparent dispersion emulsion;
step two, slowly introducing chlorine dioxide into the dispersion emulsion to enable the chlorine dioxide to be fully adsorbed in the adsorbent, and strictly controlling the temperature below 20 ℃ during the feeding;
step three, adding 2/3 of stabilizer into the liquid prepared in the step two, stirring until the stabilizer is completely dissolved, and maintaining the stability of the chlorine dioxide in the emulsion;
step four, adding a film forming agent into the step three, coating the film on the adsorbent, controlling the temperature below 25 ℃, and stirring for reaction;
and step five, sequentially adding the rest 1/3 stabilizer and ammonium sulfamate into the liquid prepared in the step four, controlling the temperature below 15 ℃, and stirring until the rest stabilizer and the ammonium sulfamate are completely dissolved to prepare the cold region rice dehydrating agent.
2. The rice dehydrating agent in cold regions according to claim 1, which comprises the following components in percentage by weight: 0.05 to 0.5 percent of ammonium sulfamate, 4 to 8 percent of chlorine dioxide, 2 to 8 percent of stabilizing agent, 0.1 to 0.5 percent of adsorbent, 0.2 to 0.4 percent of film forming agent, 3 to 5 percent of surfactant and the balance of water.
3. The rice dewatering agent according to claim 1, wherein the surfactant is at least one of cetyltrimethylammonium chloride and dodecyldimethylbenzyl ammonium chloride.
4. The rice dewatering agent according to claim 1, wherein the stabilizer is disodium octaborate tetrahydrate.
5. The rice dewatering agent in cold regions according to claim 1, wherein the adsorbent is nano mesoporous silica.
6. The rice dewatering agent in cold regions according to claim 1, wherein the film forming agent is cyclodextrin.
7. A method for preparing the dehydrating agent for rice in cold regions according to any one of claims 1 to 6, comprising the steps of:
firstly, adding water and an adsorbent into a preparation kettle, starting a dispersing machine, adding a surfactant, stirring and dispersing after the addition, and controlling the temperature below 20 ℃ to prepare a transparent dispersion emulsion;
step two, slowly introducing chlorine dioxide into the dispersion emulsion to enable the chlorine dioxide to be fully adsorbed in the adsorbent, and strictly controlling the temperature below 20 ℃ during the feeding;
step three, adding 2/3 of stabilizer into the liquid prepared in the step two, stirring until the stabilizer is completely dissolved, and maintaining the stability of the chlorine dioxide in the emulsion;
step four, adding a film forming agent into the step three, coating the film on the adsorbent, controlling the temperature below 25 ℃, and stirring for reaction;
and step five, sequentially adding the rest 1/3 stabilizer and ammonium sulfamate into the liquid prepared in the step four, controlling the temperature below 15 ℃, and stirring until the rest stabilizer and the ammonium sulfamate are completely dissolved to prepare the cold region rice dehydrating agent.
8. The method according to claim 7, wherein the stirring and dispersing time in the first step is 15 to 30 minutes.
9. The method according to claim 7, wherein the charging time in the second step is 15 to 20 minutes.
10. The method according to claim 7, wherein the stirring reaction time in the fourth step is 1 to 2 hours.
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| US4966620A (en) * | 1982-11-26 | 1990-10-30 | Union Oil Company Of California | Methods for facilitating the harvest of food crops |
| CN104054752A (en) * | 2014-05-30 | 2014-09-24 | 浙江大学 | Composition and application thereof in dehydration of rice seed |
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| WO2016087630A1 (en) * | 2014-12-05 | 2016-06-09 | Desinfección Profesional, S.L. | Biocidal composition with dual inmediate and remnant activity |
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| US4966620A (en) * | 1982-11-26 | 1990-10-30 | Union Oil Company Of California | Methods for facilitating the harvest of food crops |
| CN104054752A (en) * | 2014-05-30 | 2014-09-24 | 浙江大学 | Composition and application thereof in dehydration of rice seed |
| WO2016087630A1 (en) * | 2014-12-05 | 2016-06-09 | Desinfección Profesional, S.L. | Biocidal composition with dual inmediate and remnant activity |
| CN105494375A (en) * | 2015-12-30 | 2016-04-20 | 广西壮族自治区农业科学院植物保护研究所 | Composition for rice withering acceleration |
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