CN102577895A - Method and device for spraying thermal fog carried biological pesticide - Google Patents
Method and device for spraying thermal fog carried biological pesticide Download PDFInfo
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Abstract
The invention provides a method and device for spraying thermal fog carried biological pesticide, so that biological pesticide liquor is thermally fogged to rise up, spread and suspend over the prevention space while not losing the activity of the biological pesticide. The method for spraying biological pesticide is as follows: adding the oil-based suspension of the biological pesticide into the following solvent to prepare hot fogging concentrate, and then spraying the hot fogging concentrate into the spraying tube of a fog machine to be fogged and sprayed out. The temperature of the fogged hot fogging concentrate at the nozzle is 300 DEG C +/- 500 DEG C; and, in the solvent, the ratio of glycerol to water by volume is 55-75:25-45. The device for spraying biological pesticide includes a fog machine, the fog machine has a spraying tube, a nozzle is arranged on the spraying tube, the nozzle is communicated with a pesticide tank, and the pesticide tank is communicated with a gas pressure tube; and the pesticide tank is filled with thermal fogging concentrate mixed from oil-base suspension of the biological pesticide, glycerol and water.
Description
Technical field
The present invention relates to the application method and the applicator of biopesticide.
Background technology
Biopesticide is meant the preparation that utilizes biological living or its metabolite to kill or suppress to the agriculture and forestry pest.
The biopesticide preparation formulation has at present: wetting powder, pulvis, oil-suspending agent, granule, emulsion.According to the difference of formulation and controlling object, different methods for using is arranged correspondingly: for granule and pulvis formulation generally adopt hand to spread, cloth bag is trembled powder, the method for powder big gun and mechanical dusting; Wetting powder and emulsion generally are to adopt the spraying facility to spray behind the thin up.These methods for using are not only time-consuming, and the biopesticide effective rate of utilization is extremely low, can not adapt to large-scale application simultaneously.
Oil-suspending agent (finish) is to be thinner with oil, the active conidium of biopesticide or bacterium is processed a kind of form of spore suspension or bacteria suspension.Advantages such as finish has that permeability and adhesion are strong, storage tolerance, anti-evaporating and synergy.Finish can reduce spore or bacterium sprouting and infect the dependence to environment, compares with other formulations, and finish is still favourable to the sprouting of spore or bacterium under lower relative moisture, at high temperature also can prolong the life-span of spore or bacterium simultaneously.Finish also helps the absorption to hydrophobic of spore or bacterium, improves spore or bacterium adhesive rate, like insect body wall or plant surface.
Conventional agricultural chemicals dispensing facility generally are sprayings or dust.For example; It is exactly to utilize pulse duct, piston stroke formula engine or stable state combustion device to be discharged through blast pipe by the thermal current that the combustion chamber internal combustion produces that the hot smog that belongs to prior art carries pesticide spraying (dispensing) technology; The solvent naphtha soup that will comprise agricultural chemicals is sprayed into by the medicine nozzle and carries out the heating power atomizing in the atomizing nozzle in the thermal current and form fine mist, enters through the atomizing nozzle spout and is condensed into smog in the atmosphere.Because in blast pipe, form high temperature (reaching 600-1300 ℃) (average exhaust velocity reaches more than the 40m/s) thermal current at a high speed, blast pipe is also referred to as (atomizing) jet pipe.This smog fogdrop diameter is generally less than 20 microns; Very tiny, can be filled in certain space, can be suspended in more muchly in the air; Diffusion permeates and prevents and treats the space very equably; The inaccessiable space of the powder that can be deep into the droplet of general spraying or dust institute is local, and the finish droplet is easy to adsorb plant leaf surface or insect body wall, adopts the smog drug delivery technologies to have effect height, medication economy, characteristics such as easy to use.
Hot smog carries pesticide spraying (dispensing) technology and is particularly suitable for common agricultural chemicals.If also directly adopt hot smog to carry pesticide spraying (dispensing) technology, promptly spray into the thermal fog of biopesticide in the jet pipe of fog machine and atomize ejection then biopesticide.Because it is still too high that soup sprays into the high temperature and high speed thermal current to the fog machine jet pipe in this trip segment of nozzle exit the group of the droplet after atomizing gas flow temperature from spraying nozzle, reach 400-700 ℃, can the activity of biopesticide be killed fully.Therefore, this method is inadvisable.For this reason, have the people in CN202077512U, to disclose a kind of agricultural chemicals disperse fog machine, it is that the jet pipe of thermal aerosol generator is provided with (operating) water nozzle and agricultural chemicals nozzle, and to reduce Jet Pipe Temperature, agricultural chemicals is difficult for decomposing water through (operating) water nozzle ejection jet pipe.But because water separates with agricultural chemicals and sprays into jet pipe; Agricultural chemicals separates with water, has reduced temperature in the jet pipe though this causes having water to spray into jet pipe, and agricultural chemicals still exposes in the high temperature and high speed thermal current in jet pipe; Inevitably have agricultural chemicals and decompose sex change, lose activity.
Summary of the invention
The purpose of this invention is to provide a kind of hot aerosolization of biopesticide soup that can make, reach that ascension is filled the air and be suspended in for a long time in the control space, the hot smog of not losing the activity of biopesticide simultaneously again carries the biopesticide application method.
This hot smog carries the biopesticide application method, adds following solvents to the oil-suspending agent of biopesticide and processes thermal fog, sprays into atomizing ejection in the jet pipe of fog machine from spraying nozzle; Temperature after the thermal fog atomizing of spraying nozzle place is 300 ℃ ± 50 ℃; In the said solvent, glycerine and water volume ratio are 55-75: 25-45.
Beneficial effect of the present invention: the present invention discharges biopesticide with hot smog medicine carrying mode.In the solvent, the water proportioning has strict requirement, and purpose is that finish is sprayed into the temperature that can effectively reduce in the high temperature and high speed thermal current in the atomizing nozzle after medicament atomizes by spraying nozzle, promptly is no more than 350 ℃.But water content is unsuitable too high, otherwise become water smoke then fogdrop diameter become big, can't resemble the ascension of smog and fill the air, be suspended in for a long time and prevent and treat in the space, do not reach control efficiency, perhaps can not atomize at all, directly trickle out from the atomizing nozzle spout.In addition; Owing to added water, make water wrap up to the finish particulate, formed oil-in-water droplet (grain); This droplet is in jet pipe the time; The coolant-temperature gage of droplet periphery is higher, the finish of droplet central part (biopesticide) relative temperature is lower, and the biopesticide that has so further guaranteed can Yin Gaowen and lost activity.Through to using very widely two kinds of biopesticide white muscardine fungis and bacillus thuringiensis,Bt (Bacillus thuringiensis; Abbreviation Bt) test; Through the test determination before and after the hot smog atomizing; The gemma germination rate of white muscardine fungi does not almost change, and the range of decrease has only 1.4%, and the biggest drop of bacillus thuringiensis,Bt (B.t) gemma vigor also has only 10.9%.
Above-mentioned hot smog carries the biopesticide application method, and in the said solvent, glycerine and water volume ratio are 55: 45,65: 35 or 75: 25.Best, also have Sodium Benzoate and Tween in the solvent, the volume ratio that Sodium Benzoate and Tween all account for solvent is 3 ‰.Sodium Benzoate and Tween are conventional auxiliary agents.
Above-mentioned hot smog carries the biopesticide application method, and biopesticide refers to white muscardine fungi or bacillus thuringiensis,Bt.
The present invention provides a kind of hot aerosolization of biopesticide soup that can make simultaneously, reaches that ascension is filled the air and is suspended in for a long time in the control space, and the hot smog of not losing the activity of biopesticide simultaneously again carries the biopesticide applicator.
Hot smog of the present invention carries the biopesticide applicator, comprises fog machine, and said fog machine has jet pipe, and jet pipe is provided with spraying nozzle, and spraying nozzle communicates with chemical tank, and chemical tank communicates with the gas pressure pipe; The composite thermal fog of oil-suspending agent, glycerine, water that biopesticide is arranged in the chemical tank.
The beneficial effect of this applicator: owing to contain water in the thermal fog; Make water wrap up to the finish particulate; Formed oil-in-water droplet (grain), this droplet is in jet pipe the time, and the coolant-temperature gage of droplet periphery is higher; The finish of droplet central part (biopesticide) relative temperature is lower, and the biopesticide that has guaranteed can Yin Gaowen and lost activity.Through to using very widely two kinds of biopesticide white muscardine fungis and bacillus thuringiensis,Bt (Bacillus thuringiensis; Abbreviation Bt) test; Through the test determination before and after the hot smog atomizing; The gemma germination rate of white muscardine fungi does not almost change, and the range of decrease has only 1.4%, and the biggest drop of bacillus thuringiensis,Bt (Bt) gemma vigor also has only 10.9%.
Above-mentioned hot smog carries the biopesticide applicator, and glycerine and water volume ratio are 55-75: 25-45.Preferably, glycerine and water volume ratio are 55: 45,65: 35 or 75: 25.
Above-mentioned hot smog carries the biopesticide applicator, and fog machine is triggering type fog machine, heating power fog machine, pulsejet type fogger, combustion gas fog machine or fuel oil fog machine.Fog machine belongs to prior art, no longer describes.
Description of drawings
Fig. 1 is the sketch mapes such as jet pipe that this hot smog carries the biopesticide applicator.
Embodiment
Hot smog referring to shown in Figure 1 carries the biopesticide applicator, comprises fog machine, and said fog machine has jet pipe 1, and jet pipe is provided with spraying nozzle 2, and spraying nozzle 2 communicates with chemical tank 3, and chemical tank 3 communicates with gas pressure pipe 4.Thermal fog is housed in the chemical tank.Thermal fog adds solvent and obtains in the oil-suspending agent of biopesticide.
If it is still too high that soup directly sprays into to the high temperature high speed thermal current 6 in nozzle exit 5 these trip segment the group of the droplet after atomizing gas flow temperature from spraying nozzle 2, reach 400-700 ℃, can the activity of biopesticide be killed fully.Therefore need be made into specific thermal fog, the temperature after the atomizing of spraying nozzle place soup heating power is reduced to 300 ℃ ± 50 ℃, to keep the activity of biopesticide.Like this, high temperature and high speed thermal current 6 promptly becomes low temperature mist drip 7 (claiming that at this low temperature is for high temperature and high speed thermal current 6) behind spraying nozzle 2, and low temperature mist drip 7 is condensed into smog after nozzle exit 5 ejections.Concrete way is solvent that can adding in the biopesticide is specific.At this moment temperature can be above 350 ℃ in the fuming pipe.Through two kinds of biopesticide white muscardine fungis are the tests of the biological insecticides that current production rate is maximum, use is the widest with bacillus thuringiensis,Bt to using very widely; Through the test determination before and after the hot smog atomizing; The gemma germination rate of white muscardine fungi does not almost change; The range of decrease has only 1.4%, and the biggest drop of bacillus thuringiensis,Bt (Bt) gemma vigor also has only 10.9%.
The key of present technique is:
1. enter after the thermal fog of biopesticide atomizes through high temperature and high speed thermal current heating power and form smog in the air, promptly comprise biologically active spore or bacterium in the smog fine mist, and keep biologically active.
2. when disposing; The finish of biopesticide can guarantee fuming with the specific solvent proportioning that contains water; Must make the temperature after spraying nozzle place medicament has just atomized be controlled at 300 ℃ ± 50 ℃ again; Maximum temperature after the biopesticide atomizing promptly is positioned at here, and it is low more to move temperature to the spout place more, enters in the atmosphere temperature and more can cool off rapidly.
Embodiment 1: bacillus thuringiensis (Bt) heating power atomizing activity test
1. thermal fog preparation
Choose glycerine (glycerine), water solvent,, prepare the 500mL preparation respectively, and be loaded on respectively in the 500mL triangular flask of sterilization according to the proportioning of carrying out of three kinds of volume ratios 55: 45,65: 35,75: 25 as the bacillus thuringiensis thermal fog.In each 500mL preparation, add volume ratio 10% (be meant and add 50mL bacillus thuringiensis zymotic fluid) respectively and be mixed with the bacillus thuringiensis thermal fog through the bacillus thuringiensis zymotic fluid that filters.Adding volume ratio then respectively is 3 ‰ antioxidant Sodium Benzoate, 3 ‰ Tween-20,3 ‰ inhibitor dodecyl Sodium Benzoate, after fully shaking up, is mixed with A1, A2, three kinds of thermal fog preparations of A3, and it is subsequent use to be placed on room temperature preservation.
2. nozzle exit smog temperature
With diesel oil as contrast; With the A1 for preparing, A2, A3 bacillus thuringiensis thermal fog respectively gradation pack in the medicine-chest of 6HY-25 type fog machine; Start the operation of fog machine aerosol spraying mist; After treating that smog is stable, measuring the smog temperature with infrared radiation thermometer apart from fog machine chimney 0cm, 15cm, 30cm place.The result sees table 1.Experimental result shows that A1, A2, three kinds of preparations of A3 are the cigarette temperature and all are starkly lower than control group diesel oil and are the cigarette temperature; The thermal fog exit temperature that G & W is made into and the maximum temperature difference of diesel oil reach 322 ℃; Along with the increase of distance, the maximum temperature difference of thermal fog exit temperature and diesel oil drops to 115 ℃.Why not this also can explain can be directly with the finish of diesel oil as biopesticide, otherwise biopesticide can all be burnt to death by the elevated temperature heat air-flow in jet pipe.The thermal fog of glycerine and the different proportionings of water is also different apart from three distance smog of spout temperature, and oil-water ratio is that 75: 25 preparation all is higher than other two kinds of proportionings three distance smog temperature, and presents such rule: 75: 25＞65: 35＞55: 45.The main cause that this situation occurs is relevant with glycerol content, and in the solvent, the temperature that glycerol content exceeds smog more is also high more, otherwise then low more.
After treating that fog machine aerosol spraying atomizing is stable, receive cigarette to connect bacterium from nozzle hole 5m place with flat board in the horizontal direction, simultaneously will be without the preparation of fog machine heating power atomizing as contrast, cultivate 24h after, adopt the method for plate culture count to count.
Table 1 nozzle exit smog droplet temperature
3. storage time and temperature are to the mensuration of Bt thermal fog survival rate influence
Storage condition is bigger to the preparation stability influence.This research is stored in different preparations respectively under 25 ℃ (near natural environmental conditions) and the 50 ℃ of conditions; In 1d (my god), 3d, 7d sampling and measuring be active; Select each dull and stereotyped long dilution factor that 30～300 bacterium colonies are arranged; Same dilution three countings that the clump count that repeats to contrast should not differ greatly calculate every ml of formulation viable count according to formula and see table 2.The result shows, under 25 ℃ of conditions, prolongs with storage time, and each is handled activity and all reduces, but the range of decrease is not obvious, the maximum range of decrease be 75: 25 thermal fogs, be that 25.94%, 65: 35 thermal fog activity all are higher than other two kinds of preparations, the range of decrease is merely 16.22%.Under 50 ℃ of conditions, prolong with storage time, activity all reduces, and the range of decrease is obvious; Wherein 75: 25 thermal fog activity receive 50 ℃ to have the greatest impact, and decrease by 65.37%, secondly are 55: 45 thermal fogs; The range of decrease is 48.96%, and what the range of decrease was minimum is 65: 35 thermal fogs, is 26.4%.Through comparing the active variation of each preparation under two kinds of conditions, the ratio that glycerine and water are described is the thermal fog best performance of 65: 35 solvent preparation, and stability better.
Every milliliter of bacterium liquid of each ratio preparation of table 2 viable count
Formula: bacterium colony mean * extension rate that every ml sample viable count=same dilution gradient repeats for three times
4.Bt gemma vitality test before and after the atomizing of thermal fog heating power
When measuring nozzle exit smog temperature,, adopt the method for plate culture count to measure thermal fog, measure the result and see table 3 with the gemma vigor before and after the heating power atomizing with the dull and stereotyped smog of collecting.Not only do not descend for 75: 25 preparation of oil-water ratio Bt vigor after the heating power atomizing, improve on the contrary.65: 35 and also only slightly reduction of two kinds of preparation activity in 55: 45; The range of decrease is respectively 7.89% and 10.94%; Thus it is clear that adopt the oiling fumicants of glycerine and this proportioning of water, owing in jet pipe, be controlled at below 350 ℃ through the temperature after the heating power atomizing, and the experience section is very short; Therefore the Bt gemma in the condensed smog droplet still keeps very high vigor in air, and this further specifies the feasibility and the operability of G & W as Bt thermal fog atomizing solvent.
Gemma vitality test result before and after the atomizing of table 3 thermal fog heating power
Embodiment 2: white muscardine fungi heating power atomizing activity test
1. white muscardine fungi thermal fog preparation
Choose glycerine, water solvent as the white muscardine fungi thermal fog; According to glycerine and three kinds of volume ratios of water 55: 45,65: 35,75: 25; The high conidial powder of white muscardine fungi: solvent (1: 50) is mixed with volume ratio 2% white muscardine fungi thermal fog, respectively joins the 250mL preparation, and note is made A1, A2, A3 respectively; Be loaded on respectively in the 500mL triangular flask of sterilization; And to add volume respectively be 3 ‰ antioxidant Sodium Benzoate, 3 ‰ Tween-80,3 ‰ inhibitor dodecyl Sodium Benzoates, after fully shaking up, be put in preserve in 4 ℃ of environment subsequent use.
2. nozzle exit smog droplet temperature measuring
Test as a comparison with No. 0 diesel oil; The A1 for preparing, A2, A3 white muscardine fungi thermal fog white muscardine fungi thermal fog are respectively charged in the medicine-chest of 6HY-25 type fog machine; Start the operation of fog machine aerosol spraying mist; After treating that smog is stable, measuring the smog temperature with infrared radiation thermometer apart from fog machine chimney 0cm, 15cm, 30cm place.Test result is seen table 4.The result shows that G & W all is starkly lower than control group diesel oil fuming temperature as the thermal fog of solvent through the smog temperature of fog machine heating power atomizing.Glycerine and water formulation reach 303 ℃ at the maximum temperature difference of outside nozzle temperature and diesel oil, and along with the increase apart from jet opening distance, both gradually reduce at the temperature difference.In that maximum temperature difference is 106 ℃ apart from spout 30cm place.Three kinds of different proportioning thermal fogs are also different in the smog temperature apart from three distance of spout, and oil-water ratio is that 75: 25 A3 preparation all is higher than other two kinds of preparations three distance smog temperature.On the whole, three kinds of preparations present such rule: A1＜A2＜A3 in the smog temperature of three distance.The main cause that this situation occurs is relevant with glycerol content, and glycerine is also high more as the temperature of the high more outlet flue of its content of thermal fog solvent, otherwise then low more.Explain also simultaneously that diesel oil is too high through the temperature of heating power atomizing as the thermal fog finish, can biopesticide all be burnt to death by the elevated temperature heat air-flow in jet pipe, therefore should not be as the finish of biopesticide.
Table 4 nozzle exit smog droplet temperature
3. supply beauveria bassiana spore powder spore content on probation and germination rate test
See table 5 to supplying examination beauveria bassiana spore spore content and germination rate to measure the result, experimental result shows: supply the spore content and the germination rate of examination beauveria bassiana spore powder to be respectively 1.28 * 10
11With 98.1%, all be higher than the standard 1.2 * 10 of general enterprise
11And 95%.
Table 5 beauveria bassiana spore germination rate and spore content are measured the result
4. storage time and temperature are to the mensuration of white muscardine fungi thermal fog activity influence
Storage condition is bigger to the preparation stability influence.This research is stored in different preparations respectively under 25 and 50 ℃ of conditions; Carry out the high temperature simulated experiment with 50 ℃ of conditions, the active variation of preparation in a year of simulation storage is in 1d, 2d, 3d sampling and measuring activity; The preparation spore of the corresponding storage of 1d in the time of 1st month is active; The preparation spore of the corresponding storage of 3d in the time of six month is active, and the preparation spore of the corresponding storage of 7d in the time of 12nd month is active, measures the result and sees table 6.
Table 6 storage time and temperature are to the influence of white muscardine fungi thermal fog spore germination rate
Three kinds of thermal fog preparations and diesel oil thermal fog beauveria bassiana spore germination rate be at normal temperature condition promptly under 25 ℃ of storage temperature, and it is little that 7 days endospore germination rates change, and just slightly descends to some extent.Corresponding each thermal fog spore germination rate still is reached for after 7 days: 92.5%, 92.6%, 93.2%, 94.8%, and the corresponding range of decrease has only: 2%, 4.3%, 4.5%, 3.3%.It is thus clear that the three kinds of thermal fogs and the diesel oil range of decrease at short notice are all lower; But the activity of three kinds of thermal fogs all is lower than diesel oil; The possible reason of this situation occurs and be because solvent has certain influence to the activity of spore, but, also can't compare the storage property of each thermal fog because minute is shorter; So the high temperature simulated experiment has further been done in this research, in the hope of understanding the storage property of each thermal fog.
50 ℃ of high temperature simulated experiments can find out, the variation tendency of three kinds of thermal fog A1, A2, A3 spore germination rate is basic identical, and after 7 days, the spore activity of promptly corresponding normal temperature storage in the time of 1 year is respectively; 53.1%, 59.7%, 61.4%.And white muscardine fungi stores in diesel oil, and the spore activity is lost gradually, and spore germination rate is merely 5.6%.Newly after 1 year, spore germination rate reaches as high as 61.4% to three kinds of white muscardine fungi thermal fogs of development, has good storage property at high temperature simulated experiment storage.And diesel oil can not be as the finish of white muscardine fungi long-term storage.
5. the white muscardine fungi thermal fog is to influence test active before and after the heating power atomizing
When measuring nozzle exit smog temperature; After treating that the preparation aerosolization is stable, receive cigarette to connect bacterium apart from spout 5m place with the sterilization culture dish in the horizontal direction, behind time laboratory; In superclean bench, the smog droplet of collecting is washed in the beaker with sterile water; Microscopy is diluted to each visual field has 20-30 spore, on each single concavity slide, drips 40ul, the cultivation of in 25 ℃ of environment, preserving moisture.Microscopy is sprouted spore count and spore sum behind 24h and 48h respectively, calculates germination rate, detects the spore germination rate without the heating power atomization preparation simultaneously, as check experiment.Measure the result and see table 7; The result shows that three kinds of thermal fogs are before and after the atomizing of fog machine heating power; The spore vigor descends all less; The maximum range of decrease also has only 1.7%, and the thermal fog that visible G & W is made into spore after the heating power atomizing still keeps high vigor, and this further specifies feasibility and the operability of G & W as white muscardine fungi thermal fog solvent.
Gemma germination rate before and after the atomizing of table 7 white muscardine fungi thermal fog heating power
Claims (8)
1. hot smog carries the biopesticide application method, it is characterized in that: add following solvents to the oil-suspending agent of biopesticide and process thermal fog, spray into atomizing ejection in the jet pipe of fog machine from spraying nozzle; Temperature after the thermal fog atomizing of spraying nozzle place is 300 ℃ ± 50 ℃; In the said solvent, glycerine and water volume ratio are 55-75:25-45.
2. hot smog as claimed in claim 1 carries the biopesticide application method, it is characterized in that: in the said solvent, glycerine and water volume ratio are 55:45,65:35 or 75:25.
3. hot smog as claimed in claim 2 carries the biopesticide application method, it is characterized in that: also have Sodium Benzoate and Tween in the solvent, the volume ratio that Sodium Benzoate and Tween all account for solvent is 3 ‰.
4. hot smog as claimed in claim 1 carries the biopesticide application method, it is characterized in that: biopesticide refers to white muscardine fungi or bacillus thuringiensis,Bt.
5. hot smog carries the biopesticide applicator, it is characterized in that: comprise fog machine, said fog machine has jet pipe, and jet pipe is provided with spraying nozzle, and spraying nozzle communicates with chemical tank, and chemical tank communicates with the gas pressure pipe; The composite thermal fog of oil-suspending agent, glycerine, water that biopesticide is arranged in the chemical tank.
6. hot smog as claimed in claim 5 carries the biopesticide applicator, it is characterized in that: glycerine and water volume ratio are 55-75:25-45.
7. hot smog as claimed in claim 6 carries the biopesticide applicator, it is characterized in that: glycerine and water volume ratio are 55:45,65:35 or 75:25.
8. hot smog as claimed in claim 5 carries the biopesticide applicator, it is characterized in that: said fog machine is for dividing triggering type fog machine, heating power fog machine, pulsejet type fogger, combustion gas fog machine, fuel oil fog machine.
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| Publication number | Priority date | Publication date | Assignee | Title |
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| CN103299995A (en) * | 2013-07-08 | 2013-09-18 | 中国农业科学院植物保护研究所 | Smoke forming agent for hot smoke type pesticide application technology |
| CN104950008A (en) * | 2014-03-26 | 2015-09-30 | 南京林业大学 | Test method and device based on pesticide heating power fuming and atomization principle and effect research |
| CN108041103A (en) * | 2017-12-08 | 2018-05-18 | 孙佳蔚 | A kind of preparation method and its Hybrid Heating spraying machine of the mist agent of greenhouse insect pest pesticide |
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Cited By (4)
| Publication number | Priority date | Publication date | Assignee | Title |
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| CN104950008A (en) * | 2014-03-26 | 2015-09-30 | 南京林业大学 | Test method and device based on pesticide heating power fuming and atomization principle and effect research |
| CN104950008B (en) * | 2014-03-26 | 2018-01-16 | 南京林业大学 | Method of testing and device based on agricultural chemicals heating power fuming atomization mechanism and effect disquisition |
| CN108041103A (en) * | 2017-12-08 | 2018-05-18 | 孙佳蔚 | A kind of preparation method and its Hybrid Heating spraying machine of the mist agent of greenhouse insect pest pesticide |
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Application publication date: 20120718 |