CN111763128A - Special resin-coated controlled-release pesticide fertilizer for wheat - Google Patents
Special resin-coated controlled-release pesticide fertilizer for wheat Download PDFInfo
- Publication number
- CN111763128A CN111763128A CN202010692903.6A CN202010692903A CN111763128A CN 111763128 A CN111763128 A CN 111763128A CN 202010692903 A CN202010692903 A CN 202010692903A CN 111763128 A CN111763128 A CN 111763128A
- Authority
- CN
- China
- Prior art keywords
- fertilizer
- tebuconazole
- thermosetting resin
- wheat
- release
- Prior art date
- Legal status (The legal status is an assumption and is not a legal conclusion. Google has not performed a legal analysis and makes no representation as to the accuracy of the status listed.)
- Pending
Links
- 239000003337 fertilizer Substances 0.000 title claims abstract description 121
- 238000013270 controlled release Methods 0.000 title claims abstract description 65
- 239000000575 pesticide Substances 0.000 title claims abstract description 65
- 241000209140 Triticum Species 0.000 title claims abstract description 52
- 235000021307 Triticum Nutrition 0.000 title claims abstract description 52
- 229920005989 resin Polymers 0.000 title claims abstract description 47
- 239000011347 resin Substances 0.000 title claims abstract description 47
- PXMNMQRDXWABCY-UHFFFAOYSA-N 1-(4-chlorophenyl)-4,4-dimethyl-3-(1H-1,2,4-triazol-1-ylmethyl)pentan-3-ol Chemical compound C1=NC=NN1CC(O)(C(C)(C)C)CCC1=CC=C(Cl)C=C1 PXMNMQRDXWABCY-UHFFFAOYSA-N 0.000 claims abstract description 45
- 239000005839 Tebuconazole Substances 0.000 claims abstract description 45
- 239000002245 particle Substances 0.000 claims abstract description 37
- 229920001187 thermosetting polymer Polymers 0.000 claims abstract description 27
- 239000007788 liquid Substances 0.000 claims abstract description 22
- 239000011248 coating agent Substances 0.000 claims abstract description 20
- 238000000576 coating method Methods 0.000 claims abstract description 20
- 239000003814 drug Substances 0.000 claims abstract description 14
- 239000003795 chemical substances by application Substances 0.000 claims abstract description 12
- 239000008187 granular material Substances 0.000 claims abstract description 10
- 238000002360 preparation method Methods 0.000 claims abstract description 9
- XLYOFNOQVPJJNP-UHFFFAOYSA-N water Substances O XLYOFNOQVPJJNP-UHFFFAOYSA-N 0.000 claims abstract description 6
- 238000005507 spraying Methods 0.000 claims abstract description 5
- 239000011247 coating layer Substances 0.000 claims abstract description 4
- 238000001816 cooling Methods 0.000 claims abstract description 3
- XSQUKJJJFZCRTK-UHFFFAOYSA-N Urea Chemical compound NC(N)=O XSQUKJJJFZCRTK-UHFFFAOYSA-N 0.000 claims description 19
- 239000004202 carbamide Substances 0.000 claims description 19
- LFQSCWFLJHTTHZ-UHFFFAOYSA-N Ethanol Chemical compound CCO LFQSCWFLJHTTHZ-UHFFFAOYSA-N 0.000 claims description 7
- 239000003822 epoxy resin Substances 0.000 claims description 5
- 229920000647 polyepoxide Polymers 0.000 claims description 5
- VILCJCGEZXAXTO-UHFFFAOYSA-N 2,2,2-tetramine Chemical group NCCNCCNCCN VILCJCGEZXAXTO-UHFFFAOYSA-N 0.000 claims description 3
- 229960001124 trientine Drugs 0.000 claims description 3
- 235000015097 nutrients Nutrition 0.000 abstract description 9
- 239000000126 substance Substances 0.000 description 15
- IJGRMHOSHXDMSA-UHFFFAOYSA-N Atomic nitrogen Chemical compound N#N IJGRMHOSHXDMSA-UHFFFAOYSA-N 0.000 description 10
- 238000012360 testing method Methods 0.000 description 10
- 230000000694 effects Effects 0.000 description 9
- 238000011282 treatment Methods 0.000 description 9
- WCUXLLCKKVVCTQ-UHFFFAOYSA-M Potassium chloride Chemical compound [Cl-].[K+] WCUXLLCKKVVCTQ-UHFFFAOYSA-M 0.000 description 8
- 238000011161 development Methods 0.000 description 7
- 201000010099 disease Diseases 0.000 description 5
- 208000037265 diseases, disorders, signs and symptoms Diseases 0.000 description 5
- 239000010410 layer Substances 0.000 description 5
- 229910052757 nitrogen Inorganic materials 0.000 description 5
- 241001290235 Ceratobasidium cereale Species 0.000 description 4
- 238000003912 environmental pollution Methods 0.000 description 4
- 230000005764 inhibitory process Effects 0.000 description 4
- 239000001103 potassium chloride Substances 0.000 description 4
- 235000011164 potassium chloride Nutrition 0.000 description 4
- 230000009467 reduction Effects 0.000 description 4
- 230000006872 improvement Effects 0.000 description 3
- 230000000361 pesticidal effect Effects 0.000 description 3
- 241001530056 Athelia rolfsii Species 0.000 description 2
- 238000012271 agricultural production Methods 0.000 description 2
- 239000003905 agrochemical Substances 0.000 description 2
- 244000052616 bacterial pathogen Species 0.000 description 2
- YYRMJZQKEFZXMX-UHFFFAOYSA-L calcium bis(dihydrogenphosphate) Chemical compound [Ca+2].OP(O)([O-])=O.OP(O)([O-])=O YYRMJZQKEFZXMX-UHFFFAOYSA-L 0.000 description 2
- 229910000389 calcium phosphate Inorganic materials 0.000 description 2
- YYRMJZQKEFZXMX-UHFFFAOYSA-N calcium;phosphoric acid Chemical compound [Ca+2].OP(O)(O)=O.OP(O)(O)=O YYRMJZQKEFZXMX-UHFFFAOYSA-N 0.000 description 2
- 235000013339 cereals Nutrition 0.000 description 2
- 238000006243 chemical reaction Methods 0.000 description 2
- 230000007613 environmental effect Effects 0.000 description 2
- 230000002401 inhibitory effect Effects 0.000 description 2
- 239000000463 material Substances 0.000 description 2
- 238000000034 method Methods 0.000 description 2
- 230000004048 modification Effects 0.000 description 2
- 238000012986 modification Methods 0.000 description 2
- 235000019691 monocalcium phosphate Nutrition 0.000 description 2
- 239000002426 superphosphate Substances 0.000 description 2
- 230000002459 sustained effect Effects 0.000 description 2
- 238000013268 sustained release Methods 0.000 description 2
- 239000002699 waste material Substances 0.000 description 2
- 241000196324 Embryophyta Species 0.000 description 1
- 241000238631 Hexapoda Species 0.000 description 1
- 241000607479 Yersinia pestis Species 0.000 description 1
- RDXARWSSOJYNLI-UHFFFAOYSA-N [P].[K] Chemical compound [P].[K] RDXARWSSOJYNLI-UHFFFAOYSA-N 0.000 description 1
- 230000009286 beneficial effect Effects 0.000 description 1
- 230000015572 biosynthetic process Effects 0.000 description 1
- 235000013877 carbamide Nutrition 0.000 description 1
- 230000015556 catabolic process Effects 0.000 description 1
- 150000001875 compounds Chemical class 0.000 description 1
- 230000001186 cumulative effect Effects 0.000 description 1
- 230000007423 decrease Effects 0.000 description 1
- 238000006731 degradation reaction Methods 0.000 description 1
- 230000009977 dual effect Effects 0.000 description 1
- 238000002474 experimental method Methods 0.000 description 1
- 230000002349 favourable effect Effects 0.000 description 1
- 230000004720 fertilization Effects 0.000 description 1
- 239000000945 filler Substances 0.000 description 1
- 235000013305 food Nutrition 0.000 description 1
- 230000010354 integration Effects 0.000 description 1
- 230000003993 interaction Effects 0.000 description 1
- 238000004519 manufacturing process Methods 0.000 description 1
- 230000007246 mechanism Effects 0.000 description 1
- 239000000618 nitrogen fertilizer Substances 0.000 description 1
- 238000010899 nucleation Methods 0.000 description 1
- 230000000704 physical effect Effects 0.000 description 1
- 238000012545 processing Methods 0.000 description 1
- 239000002689 soil Substances 0.000 description 1
- 238000003860 storage Methods 0.000 description 1
- 230000001360 synchronised effect Effects 0.000 description 1
- 230000002195 synergetic effect Effects 0.000 description 1
Images
Classifications
-
- C—CHEMISTRY; METALLURGY
- C05—FERTILISERS; MANUFACTURE THEREOF
- C05G—MIXTURES OF FERTILISERS COVERED INDIVIDUALLY BY DIFFERENT SUBCLASSES OF CLASS C05; MIXTURES OF ONE OR MORE FERTILISERS WITH MATERIALS NOT HAVING A SPECIFIC FERTILISING ACTIVITY, e.g. PESTICIDES, SOIL-CONDITIONERS, WETTING AGENTS; FERTILISERS CHARACTERISED BY THEIR FORM
- C05G5/00—Fertilisers characterised by their form
- C05G5/30—Layered or coated, e.g. dust-preventing coatings
- C05G5/37—Layered or coated, e.g. dust-preventing coatings layered or coated with a polymer
-
- C—CHEMISTRY; METALLURGY
- C05—FERTILISERS; MANUFACTURE THEREOF
- C05C—NITROGENOUS FERTILISERS
- C05C9/00—Fertilisers containing urea or urea compounds
- C05C9/005—Post-treatment
-
- C—CHEMISTRY; METALLURGY
- C05—FERTILISERS; MANUFACTURE THEREOF
- C05G—MIXTURES OF FERTILISERS COVERED INDIVIDUALLY BY DIFFERENT SUBCLASSES OF CLASS C05; MIXTURES OF ONE OR MORE FERTILISERS WITH MATERIALS NOT HAVING A SPECIFIC FERTILISING ACTIVITY, e.g. PESTICIDES, SOIL-CONDITIONERS, WETTING AGENTS; FERTILISERS CHARACTERISED BY THEIR FORM
- C05G3/00—Mixtures of one or more fertilisers with additives not having a specially fertilising activity
- C05G3/40—Mixtures of one or more fertilisers with additives not having a specially fertilising activity for affecting fertiliser dosage or release rate; for affecting solubility
-
- C—CHEMISTRY; METALLURGY
- C05—FERTILISERS; MANUFACTURE THEREOF
- C05G—MIXTURES OF FERTILISERS COVERED INDIVIDUALLY BY DIFFERENT SUBCLASSES OF CLASS C05; MIXTURES OF ONE OR MORE FERTILISERS WITH MATERIALS NOT HAVING A SPECIFIC FERTILISING ACTIVITY, e.g. PESTICIDES, SOIL-CONDITIONERS, WETTING AGENTS; FERTILISERS CHARACTERISED BY THEIR FORM
- C05G3/00—Mixtures of one or more fertilisers with additives not having a specially fertilising activity
- C05G3/60—Biocides or preservatives, e.g. disinfectants, pesticides or herbicides; Pest repellants or attractants
Abstract
The invention discloses a special resin-coated controlled-release pesticide fertilizer for wheat, which consists of a fertilizer particle core sprayed with tebuconazole liquid medicine and a thermosetting resin coating layer; the preparation method comprises the following steps: (1) preheating fertilizer particles with the particle size of 2-5mm to 75-80 ℃; (2) uniformly spraying tebuconazole liquid medicine on the surface of moving fertilizer granules to prepare tebuconazole fertilizer granules; (3) the thermosetting resin is used for preparing a coating liquid in a water bath at 75 ℃, the prepared coating liquid is added with a curing agent and evenly distributed and sprayed on the surfaces of tebuconazole fertilizer particles for multiple times, the thermosetting resin is solidified and coated on the tebuconazole fertilizer particles to form a dry, smooth and compact coating under the drive of hot air at 75-80 ℃, and the resin coated controlled-release fertilizer is prepared by cooling. The invention leads the tebuconazole and the fertilizer nutrient to be synchronously controlled and released, improves the utilization rate of the fertilizer and the pesticide and reduces the loss.
Description
Technical Field
The invention relates to the technical field of pesticide and fertilizer integration, in particular to a special resin coated controlled-release pesticide fertilizer for wheat.
Background
Wheat is one of three major crops in the world and is widely planted due to the characteristics of wide application range, relatively stable yield and the like. China is the country with the largest wheat yield in the world, and wheat is important commodity grain in China, so that the development of wheat production and the synergistic improvement of wheat yield and quality have important significance on the safety and economic development of food in China.
The application of chemical fertilizers and pesticides is an important means for ensuring the high quality and high yield of grains, the chemical fertilizers can supply nutrients required by the normal growth of crops, and the pesticides can effectively reduce the plant diseases and insect pests of the crops. The consumption of chemical fertilizers and pesticides in China is the first in the world, however, the utilization rate of chemical fertilizers and pesticides in developed countries can reach 50-60%, and the consumption rate of chemical fertilizers and pesticides in China is only 30-35%. The low utilization rate of chemical fertilizers and pesticides causes serious resource waste and environmental pollution. At present, the development of slow controlled release fertilizers and pesticides is more important under the multiple target requirements of reduction and efficiency enhancement of fertilizers and pesticides and environmental friendliness.
The most widely applied slow/controlled release fertilizer in the market at present is a coated slow/controlled release fertilizer. The coated slow-controlled release fertilizer is a novel fertilizer which takes fertilizer particles as cores and is coated with a layer of insoluble inorganic or organic film on the surface so as to prolong or control the release of fertilizer nutrients and ensure that the fertilizer nutrient supply is coordinated with the fertilizer requirement of crops. The resin has the advantages of convenient curing, strong adhesion, stable chemical property and the like, and can form a smooth and compact film on the surface of fertilizer particles to ensure that the fertilizer has good controlled release performance, thereby being widely used as a coating material. The resin coated fertilizer has good controlled release performance, can meet the requirement of crops on nutrients in the whole growth period, and is a controlled release fertilizer which is widely popularized and used in the current fertilizer market.
The pesticide slow release agent can control the pesticide to be slowly released in a proper time and environment, can improve the bioavailability of the pesticide, and avoids resource waste and environmental pollution. Because of the difference of the preparation method and the release mechanism, the pesticide is generally divided into two types of physical slow-release pesticide and chemical slow-release pesticide. The physical slow-release pesticide is mainly combined by physical action between the pesticide and the carrier, and does not generate chemical reaction; the chemical slow-release pesticide is combined with a carrier by utilizing chemical reaction between the pesticide and the carrier to form a new chemical bond. At present, the physical slow-release pesticide has a higher development speed than the chemical slow-release pesticide, and other new methods for realizing the slow and controlled release of the pesticide are researched.
The application number is 201611234851.8, the patent name is a multifunctional sustained and controlled release fertilizer and a preparation method and application thereof, and discloses a multifunctional sustained and controlled release fertilizer which takes chemical fertilizer particles as cores, wherein the cores are coated with a first controlled release film, the controlled release film is coated with an agricultural chemical layer, and the agricultural chemical layer is coated with a second controlled release film. On one hand, the slow-release pesticide fertilizer has various pesticide fertilizers and low specificity, and on the other hand, the slow-release pesticide fertilizer has a first controlled-release film between a pesticide layer and fertilizer particles, so that synchronous release of pesticide and fertilizer cannot be realized, and the preparation process is complex.
Disclosure of Invention
In view of the prior art, the invention aims to provide the special resin coated controlled-release pesticide fertilizer for wheat.
In order to achieve the purpose, the invention adopts the following technical scheme:
the invention provides a special resin-coated controlled-release pesticide fertilizer for wheat, which consists of a fertilizer particle core sprayed with tebuconazole liquid medicine and a thermosetting resin coating layer;
the preparation method comprises the following steps:
(1) preheating fertilizer particles with the particle size of 2-5mm to 75-80 ℃;
(2) uniformly spraying tebuconazole liquid medicine on the surface of moving fertilizer granules to prepare tebuconazole fertilizer granules;
(3) the thermosetting resin is used for preparing a coating liquid in a water bath at 75 ℃, the prepared coating liquid is added with a curing agent and evenly distributed and sprayed on the surfaces of tebuconazole fertilizer particles for multiple times, the thermosetting resin is solidified and coated on the tebuconazole fertilizer particles to form a dry, smooth and compact coating under the drive of hot air at 75-80 ℃, and the resin coated controlled-release fertilizer is prepared by cooling.
Preferably, the fertilizer granule is urea.
Preferably, in the step (2), the tebuconazole liquid medicine is dissolved by absolute ethyl alcohol before being sprayed.
Preferably, the mass ratio of the tebuconazole to the absolute ethyl alcohol of the tebuconazole liquid medicine is 0.3: 100.
preferably, the mass of the tebuconazole is 0.006 percent of the mass of the fertilizer granule core.
Preferably, the thermosetting resin is an epoxy resin.
Preferably, in the step (3), the curing agent is triethylene tetramine.
Preferably, in the step (3), the mass ratio of the thermosetting resin to the curing agent is 5: 1.
Preferably, in step (3), the total mass of the thermosetting resin and the curing agent is 5% of the mass of the fertilizer granules.
Preferably, in the step (3), the coating solution is added with the curing agent and evenly sprayed on the surfaces of the tebuconazole fertilizer particles for 5 times.
The invention has the beneficial effects that:
1. according to the invention, the tebuconazole liquid medicine is firstly sprayed on the surfaces of the fertilizer particles, so that the tebuconazole liquid medicine is uniformly dispersed on the surfaces of the fertilizer particles, and then the surfaces of the fertilizer particles added with the tebuconazole are coated with a layer of epoxy resin film, so that the coating amount can be reduced, the tebuconazole and the fertilizer nutrients are synchronously controlled and released, the utilization rates of the fertilizer and the pesticide are improved, the loss is reduced, and the environmental pollution is reduced.
2. The pesticide in the invention is dissolved by absolute ethyl alcohol and sprayed on the surface of fertilizer particles, and then the absolute ethyl alcohol volatilizes without other fillers, so that the coating layer is smoother and more compact, the controlled release performance of the pesticide fertilizer can be improved, the quality of the controlled release pesticide fertilizer can be reduced without reducing the pesticide effect and the fertilizer effect, and the storage and the transportation are facilitated.
3. The pesticide is directly sprayed on the surface of the fertilizer particles, so that the pesticide is dispersed more uniformly, the pesticide effect is favorably exerted, and the effect of mutual assistance of the pesticide and the fertilizer is achieved.
4. The controlled-release pesticide fertilizer disclosed by the invention selects urea and tebuconazole, has specificity on disease control, can reduce the interaction between various fertilizers and pesticides, improves the pesticide effect and the fertilizer effect, is favorable for uniformly spraying tebuconazole on the surface of regular urea particles, ensures that the coating is smoother and more compact, and improves the controlled-release performance of the pesticide fertilizer.
5. Aiming at the problems of insufficient nutrients, diseases, yield reduction and the like caused by long growth period and large environmental difference during growth of wheat, the resin coated controlled-release pesticide fertilizer with the coating amount of 5 percent is prepared, the maximum efficiency period of pesticide and nutrient release is matched with the growth period of wheat, and the application effect on wheat is optimal, so that the resin coated controlled-release pesticide fertilizer has specificity on wheat, has obvious effects of preventing diseases and increasing yield on wheat, and has wide popularization and application prospects due to simple preparation process and good controlled-release performance.
6. The sheath blight of wheat is a disease of a wheat root and stem which is attacked from seedling stage to middle and later growth stages of wheat, the damage to the growth of wheat is serious, tebuconazole is a traditional pesticide capable of efficiently inhibiting rhizoctonia cerealis which is a pathogenic bacterium of sheath blight of wheat, but the degradation speed of common tebuconazole in soil is higher, and the inhibition effect on the rhizoctonia cerealis in the whole growth period of wheat is difficult to play
Preventing and treating the harm of banded sclerotial blight to wheat.
Drawings
FIG. 1 shows the test results of the inhibition of rhizoctonia cerealis, a pathogenic bacterium of sheath blight of wheat, by leach liquor of the resin coated controlled release fertilizer in 25 ℃ still water, wherein the reference numerals 1 to 8 respectively represent the test results of the inhibition of rhizoctonia cerealis at 1 st, 3 th, 7 th, 14 th, 28 th, 42 th, 56 th and 84 th days.
FIG. 2 is a graph showing the cumulative release of nitrogen in 25 ℃ still water for the resin coated controlled release fertilizer of the present invention.
Detailed Description
It should be noted that the following detailed description is exemplary and is intended to provide further explanation of the disclosure. Unless defined otherwise, all technical and scientific terms used herein have the same meaning as commonly understood by one of ordinary skill in the art to which this application belongs.
As introduced in the background art, at present, the reduction and the efficiency improvement of chemical fertilizers and pesticides are still the problems to be solved urgently in agricultural production in China, and the development of novel fertilizers and pesticides is an important development direction. The pesticide fertilizer is a novel compound preparation with dual functions of pesticide and fertilizer, can ensure agricultural production, and also has the advantages of convenient use and environmental pollution reduction. However, the existing pesticide fertilizer has various types and weak specificity.
Based on the above, the invention discloses a special resin-coated controlled-release pesticide fertilizer for wheat, which is prepared by spraying tebuconazole on the surface of urea particles and then coating the urea particles together, so that pesticide and chemical fertilizer are released synchronously, the utilization rate of the chemical fertilizer and the pesticide is improved, the high quality and the high yield of wheat are obtained, and the sustainable development of agriculture is realized.
In order to make the technical solutions of the present application more clearly understood by those skilled in the art, the technical solutions of the present application will be described in detail below with reference to specific embodiments.
The test materials used in the examples of the present invention are all conventional in the art and commercially available.
Example 1: preparation method of special resin-coated controlled-release pesticide fertilizer for wheat
The method comprises the following steps: (1) 1000kg of urea granules (particle size 2-5mm) were preheated to 75 ℃ in a rotating drum.
(2) 60g of tebuconazole is dissolved by 20kg of absolute ethyl alcohol and sprayed on the moving urea particles, and tebuconazole liquid medicine is continuously sprayed, so that the tebuconazole liquid medicine is uniformly dispersed on the surfaces of the moving urea particles.
(3) 41.7kg of epoxy resin is subjected to water bath at 75 ℃ to prepare a coating liquid, 8.3kg of triethylene tetramine is added into the prepared coating liquid, uniformly stirred and sprayed on the surface of the urea particles added with the tebuconazole, the epoxy resin is solidified and coated on the urea particles added with the tebuconazole to form a dry, smooth and compact coating under the drive of hot air at 75-80 ℃, the coated controlled release fertilizer is packaged and stored after being cooled, and the controlled release fertilizer with the coating amount of 5 percent and the controlled release periods of the tebuconazole and the urea of 3 months is prepared.
Test example: the specific effect of the product is illustrated by biological tests as follows:
(1) wheat test protocol
The test was conducted at a laboratory site of the Weifang City farm academy in Shandong province, wherein the fertilizer to be tested was the resin-coated controlled-release fertilizer prepared in example 1 (containing tebuconazole 0.0057%, N43%), and the controlled-release periods of tebuconazole and nitrogen were both 3 months; the controlled release period of the resin coated controlled release urea (containing N43%) is 3 months; the common fertilizer comprises common urea (containing N46%), calcium superphosphate (containing P)2O512%) potassium chloride (containing K)2O60%). In the test, under the condition that the application amount of the phosphorus-potassium fertilizer is consistent, the controlled-release pesticide fertilizer is applied, the controlled-release urea and the conventional pesticide dressing treatment of the wheat are compared (table 1), 3 treatments are set, the control is repeated for 3 times, 9 cells are totally formed, and the area of each cell is 20m2The seeding rate of wheat is 138kg/hm2. Fertilizing amount N-P2O5-K2O is 240-2The nitrogen fertilizer is mixed and applied by 30 percent of common urea and 70 percent of controlled release urea or controlled release pesticide fertilizer, and each treated fertilizer is basal applied at one time.
TABLE 1 wheat test fertilization protocol
| Treatment of | Processing content |
| CK | Controlled release urea, superphosphate, potassium chloride |
| B | Conventional wheat pesticide dressing, controlled release urea, calcium superphosphate and potassium chloride |
| PU | Example 1 controlled Release medical Fertilizer, superphosphate, Potassium chloride |
The results of the wheat experiment of the special thermosetting resin coated controlled-release medicinal fertilizer for wheat added with tebuconazole at the pilot plant of the agricultural hospital in the Weifang city are shown in table 2:
TABLE 2 influence of controlled release fertilizer on wheat sheath blight incidence and yield
As can be seen from the above table, under the condition of the same fertilizing amount, the inhibition effect of the treatment B on the banded sclerotial blight at the early growth stage of the wheat is optimal; as the growth period of wheat advances, the difference between the B treatment and the PU treatment decreases; and in the later growth stage of the wheat, the PU treatment has the optimal effect of inhibiting the sheath blight, the incidence of the sheath blight is reduced by 33.89 percent and 15.54 percent respectively compared with the CK treatment and the B treatment, and the yield is increased by 28.79 percent and 25.86 percent respectively. The application of the tebuconazole-added thermosetting resin coated controlled-release pesticide fertilizer special for wheat can still keep higher pesticide and nitrogen supply in the later growth stage of wheat, the incidence rate of sheath blight can be obviously reduced, and the formation of wheat yield is promoted.
Fig. 1 and fig. 2 are tebuconazole and nitrogen release correlation graphs of the tebuconazole-added thermosetting resin coated controlled release medicinal fertilizer special for wheat, which are obtained through test determination, and the results show that the release periods of the tebuconazole and the nitrogen of the controlled release medicinal fertilizer can reach 3 months, and the controlled release medicinal fertilizer has good pesticide and nutrient controlled release performance.
The above description is only a preferred embodiment of the present application and is not intended to limit the present application, and various modifications and changes may be made by those skilled in the art. Any modification, equivalent replacement, improvement and the like made within the spirit and principle of the present application shall be included in the protection scope of the present application.
Claims (10)
1. A special resin-coated controlled-release pesticide fertilizer for wheat is characterized by consisting of a fertilizer particle core sprayed with tebuconazole liquid medicine and a thermosetting resin coating layer;
the preparation method comprises the following steps:
(1) preheating fertilizer particles with the particle size of 2-5mm to 75-80 ℃;
(2) uniformly spraying tebuconazole liquid medicine on the surface of moving fertilizer granules to prepare tebuconazole fertilizer granules;
(3) the thermosetting resin is used for preparing a coating liquid in a water bath at 75 ℃, the prepared coating liquid is added with a curing agent and evenly distributed and sprayed on the surfaces of tebuconazole fertilizer particles for multiple times, the thermosetting resin is solidified and coated on the tebuconazole fertilizer particles to form a dry, smooth and compact coating under the drive of hot air at 75-80 ℃, and the resin coated controlled-release fertilizer is prepared by cooling.
2. The tebuconazole-added thermosetting resin-coated controlled-release fertilizer special for wheat according to claim 1, wherein the fertilizer particles are urea.
3. The tebuconazole-added thermosetting resin coated controlled-release fertilizer special for wheat according to claim 1, wherein in the step (2), the tebuconazole liquid medicine is dissolved by absolute ethyl alcohol before being sprayed.
4. The tebuconazole-added thermosetting resin coated controlled-release fertilizer for wheat as claimed in claim 3, wherein the tebuconazole-liquid medicine comprises tebuconazole and absolute ethyl alcohol in a mass ratio of 0.3: 100.
5. the tebuconazole-added thermosetting resin coated controlled-release fertilizer special for wheat according to claim 1, wherein the mass of tebuconazole is 0.006% of the mass of a fertilizer particle core.
6. The tebuconazole-added thermosetting resin coated controlled-release fertilizer for wheat of claim 1, wherein the thermosetting resin is epoxy resin.
7. The tebuconazole-added thermosetting resin coated controlled-release fertilizer special for wheat according to claim 1, wherein in the step (3), the curing agent is triethylene tetramine.
8. The tebuconazole-added thermosetting resin coated controlled-release fertilizer for wheat as claimed in claim 1, wherein in step (3), the mass ratio of the thermosetting resin to the curing agent is 5: 1.
9. The tebuconazole-added thermosetting resin coated controlled-release fertilizer special for wheat according to claim 1, wherein in the step (3), the total mass of the thermosetting resin and the curing agent is 5% of the mass of the fertilizer particles.
10. The tebuconazole-added thermosetting resin coated controlled-release fertilizer special for wheat according to claim 1, wherein in the step (3), the coating solution is uniformly sprayed on the surfaces of tebuconazole fertilizer particles for 5 times by adding a curing agent.
Priority Applications (1)
| Application Number | Priority Date | Filing Date | Title |
|---|---|---|---|
| CN202010692903.6A CN111763128A (en) | 2020-07-17 | 2020-07-17 | Special resin-coated controlled-release pesticide fertilizer for wheat |
Applications Claiming Priority (1)
| Application Number | Priority Date | Filing Date | Title |
|---|---|---|---|
| CN202010692903.6A CN111763128A (en) | 2020-07-17 | 2020-07-17 | Special resin-coated controlled-release pesticide fertilizer for wheat |
Publications (1)
| Publication Number | Publication Date |
|---|---|
| CN111763128A true CN111763128A (en) | 2020-10-13 |
Family
ID=72728452
Family Applications (1)
| Application Number | Title | Priority Date | Filing Date |
|---|---|---|---|
| CN202010692903.6A Pending CN111763128A (en) | 2020-07-17 | 2020-07-17 | Special resin-coated controlled-release pesticide fertilizer for wheat |
Country Status (1)
| Country | Link |
|---|---|
| CN (1) | CN111763128A (en) |
Citations (5)
| Publication number | Priority date | Publication date | Assignee | Title |
|---|---|---|---|---|
| CN1141577A (en) * | 1993-12-17 | 1997-01-29 | 巴斯福股份公司 | Solid enveloped plant protection agent formulation |
| CN101357866A (en) * | 2008-08-28 | 2009-02-04 | 山东金正大生态工程股份有限公司 | Humic acid control-releasing fertilizer and method of preparing the same |
| CN101367690A (en) * | 2008-09-04 | 2009-02-18 | 山东金正大生态工程股份有限公司 | Modified heat convertible resin coating urea |
| CN101372436A (en) * | 2008-09-24 | 2009-02-25 | 山东金正大生态工程股份有限公司 | Hot setting resin coated urea |
| CN102351608A (en) * | 2011-07-11 | 2012-02-15 | 广西田园生化股份有限公司 | Controlled release particle fertilizer used for controlling crop insect disease |
-
2020
- 2020-07-17 CN CN202010692903.6A patent/CN111763128A/en active Pending
Patent Citations (5)
| Publication number | Priority date | Publication date | Assignee | Title |
|---|---|---|---|---|
| CN1141577A (en) * | 1993-12-17 | 1997-01-29 | 巴斯福股份公司 | Solid enveloped plant protection agent formulation |
| CN101357866A (en) * | 2008-08-28 | 2009-02-04 | 山东金正大生态工程股份有限公司 | Humic acid control-releasing fertilizer and method of preparing the same |
| CN101367690A (en) * | 2008-09-04 | 2009-02-18 | 山东金正大生态工程股份有限公司 | Modified heat convertible resin coating urea |
| CN101372436A (en) * | 2008-09-24 | 2009-02-25 | 山东金正大生态工程股份有限公司 | Hot setting resin coated urea |
| CN102351608A (en) * | 2011-07-11 | 2012-02-15 | 广西田园生化股份有限公司 | Controlled release particle fertilizer used for controlling crop insect disease |
Similar Documents
| Publication | Publication Date | Title |
|---|---|---|
| CN106008117B (en) | Multifunctional biological organic slow-release fertilizer and preparation method thereof | |
| CN102424633B (en) | Self-curing film-coated controlled release fertilizer and preparation method thereof | |
| CN109400397B (en) | Water-retention controlled-release biological compound fertilizer and preparation method thereof | |
| CN103936499B (en) | A kind of seed manure that can be used for is with the fertilizer broadcast and production method thereof | |
| CN104163728A (en) | Double-coated long-acting controlled-release fertilizer and preparation method thereof | |
| CN108484300A (en) | Ureaformaldehyde Synergistic composite fertilizer production technology | |
| CN104030791A (en) | Soil-hardening-resisting growth-promoting sustained-release composite fertilizer | |
| CN104591876A (en) | Special water-soluble fertilizer for pineapple and preparation method of special water-soluble fertilizer | |
| CN107473909A (en) | A kind of composite organic-inorganic fertilizer with prevention and control pest and disease damage function and preparation method thereof | |
| CN107244971A (en) | Double film-coated and slow release fertilizers of a kind of prevention and control fruit tree diseases and pests type and preparation method thereof | |
| CN112062634A (en) | Rice slow-release fertilizer and preparation and application methods thereof | |
| CN108002946A (en) | A kind of humic acid Water soluble fertilizer and preparation method thereof | |
| CN108727136A (en) | Ureaformaldehyde Synergistic composite fertilizer production technology | |
| CN110950706B (en) | Silicon-rich fertilizer special for ginger and preparation method thereof | |
| CN104261962A (en) | Organic fertilizer for pear tree planting and preparation method thereof | |
| CN105237312A (en) | Controlled-release fertilizer for sugarcane and preparation method thereof | |
| CN110683897A (en) | Potassium chloride and humic acid composite slow-release fertilizer granules and preparation method thereof | |
| CN111763128A (en) | Special resin-coated controlled-release pesticide fertilizer for wheat | |
| CN108821895A (en) | A kind of slow-release compound fertilizer and preparation method thereof | |
| CN114436710A (en) | Dual-core slow-release manganese and urea compound fertilizer and preparation method and application thereof | |
| CN104710228A (en) | Low-temperature resistance composite fertilizer auxiliary agent, preparation method and application thereof | |
| CN103319237A (en) | Method for producing three-in-one coated controlled release fertilizer | |
| CN106380292A (en) | Controlled-release fertilizer for vegetables and preparation method of controlled release fertilizer | |
| CN102381899A (en) | Compound organic fertilizer formula and application method | |
| CN105461441A (en) | Fertilizer special for pakchoi cabbages |
Legal Events
| Date | Code | Title | Description |
|---|---|---|---|
| PB01 | Publication | ||
| PB01 | Publication | ||
| SE01 | Entry into force of request for substantive examination | ||
| SE01 | Entry into force of request for substantive examination | ||
| RJ01 | Rejection of invention patent application after publication |
Application publication date: 20201013 |
|
| RJ01 | Rejection of invention patent application after publication |