CN100370901C - Biological glue type seed coating agent, its prepn. method and use - Google Patents
Biological glue type seed coating agent, its prepn. method and use Download PDFInfo
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- CN100370901C CN100370901C CNB2005101280551A CN200510128055A CN100370901C CN 100370901 C CN100370901 C CN 100370901C CN B2005101280551 A CNB2005101280551 A CN B2005101280551A CN 200510128055 A CN200510128055 A CN 200510128055A CN 100370901 C CN100370901 C CN 100370901C
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Abstract
The present invention relates to a biological glue type seed coating agent for seed pill coating, a preparation method thereof and the use thereof. The biological glue type seed coating agent comprises the following components measured by parts by weight: water absorption resin, disintegrating agents, bentonite, talcum powder, biological glue, adhesive and porous zeolite powder. The biological glue type seed coating agent of the present invention can effectively solve the difficult problems of drought, wind erosion, spray drift, displacement, rodent pests, etc. of seeds during aerial seeding afforestation.
Description
Technical field:
The present invention relates to a kind of biological glue type seed coating agent that is used for seed pill clothing and preparation method thereof and purposes.
Background technology:
China is that world population is maximum, is subjected to one of the most serious country of desertification harm.The sand ground scattered seeds by airplane for afforestation is a modernized sand control technology.At present, China's scattered seeds by airplane for afforestation sand control has had very big development, and blocks of plant seeds by airplane woods grass has appeared at the innerland, desert, forms the protection forest system that the woods grass mixes mutually, is controlling the harm of dust storm, is guaranteeing the high and stable yields of farming and animal husbandry.
But when plant seeds by airplane sand control afforestation had been obtained effect, the seed processing technology that its development is had " bottleneck " restricting effect is the progress of not making a breakthrough property still.Because nature and the characteristics of socio-economic development and the characteristics of present situation and scattered seeds by airplane for afforestation sand control technology itself of arid, semiarid Wind-sandy Area, so far fail to break through the restriction of restrictive factors such as arid, wind erosion, drift, displacement, the plague of rats, cause the plant seeds by airplane technology still to be in more low-level state.
Therefore, press for the new technology that exploitation can solve restraining factors in the above-mentioned scattered seeds by airplane for afforestation seed treatment.
Summary of the invention:
The purpose of this invention is to provide a kind of biological glue type seed coating agent that seed is carried out obducensization.
Another object of the present invention provides the preparation method of described biological glue type seed coating agent.
A further object of the present invention provides the purposes of described biological glue type seed coating agent.
Biological glue type seed coating agent of the present invention comprises the following composition in parts by weight:
But water-absorbing resins 0.5-5 part
Disintegrant 1-6 part
Bentonite 20-50 part
Talcum powder 30-70 part
Seed wormwood artemisia glue 2-15 part
Carboxymethyl cellulose 1-10 part.
But described water-absorbing resins is SAP water-loss reducer a---polyacrylamide, one or more of polyacrylate or polyvinyl alcohol.
Described disintegrant is selected from one or both in sodium carboxymethyl starch and the sodium carboxymethylcellulose.
Described bentonite is selected from one or both in calcium-base bentonite and the sodium bentonite.
Biological glue type seed coating agent also comprises the zeolite powder 1-8 part in parts by weight.
The preparation method of biological glue type seed coating agent of the present invention is as follows, and it includes following steps:
(1) but in proportion water-absorbing resins, disintegrant, seed wormwood artemisia glue and carboxymethyl cellulose are mixed, the fineness of check powder requires to reach more than 500 orders;
(2) in proportion talcum powder and bentonite are mixed, the fineness of check powder requires to reach more than 500 orders;
(3) two kinds of mixtures that obtain in step (1) and (2) are mixed, stablize, check the fineness of powder and measure proportion again, require more than fineness 500 orders proportion 〉=1.6g/cm
3, qualified back packing.
Mixing in above-mentioned steps (1) and (2) is to pulverize, filter and mix more than 30 minutes with ultra-fine pulverizing equipment.
Mixing in the above-mentioned steps (3) is to mix more than 60 minutes in double roller mixer.
The above-mentioned method preparation process for preparing biological glue type seed coating agent is carried out at normal temperatures.
Further add zeolite powder 1-8 part in the above-mentioned steps (1), mix in parts by weight.
Use above-mentioned described biological glue type seed coating agent to be used for the obducensization of seed.
Advantage of the present invention: biological glue type seed coating agent of the present invention the seed pelleting Pelleting, prevent the drift that produces in the aerial seeding seed dropping process and fall kind after because the aspects such as displacement that eolian erosion produced, and utilizing the common desert shrub wormwood artemisia in husky district to refine biogum-seed wormwood artemisia glue, and then solve repellent action, the colloidization after the Pelleting of aerial seeding seed dressing and run into amount of water calving disaggregation aspect, obtain important breakthrough, can effectively solve the restraining factors in the above-mentioned seed processing technology.
At first, the present invention can solve the drift and the displacement problem of seed basically.According to the naked kind size of different seeds; can carry out the Pelleting dressing of a times, two times, three times even bigger particle diameter, simultaneously since the colloid water imbibition extra-heavy of seed wormwood artemisia glue meet water and can generate sticky matter; pastel; have bonding effect, seed produces adhesion with after the grains of sand contact; thereby prevent its displacement; seed wormwood artemisia glue is met tidal energy and is generated diaphragm simultaneously, natural Pelleting behind the bonding sandy soil, thus play the protective layer effect.
Secondly, because seed wormwood artemisia glue has specific peculiar smell again, can play the effect of repellent bird mouse worm harm, and seed wormwood artemisia glue itself is nuisanceless again, pollution-free.Contain a large amount of constants and micronutrient element in the seed wormwood artemisia glue, these nutritive elements make aerial seeding seed sprout and growth of seedling in the phase, can obtain enough nutritive elements, and can improve its resistance, this is crucial in barren semifixed and active dune.Compare with other cementing agent, seed wormwood artemisia glue---self has specific peculiar smell, can play the effect of the repellent plague of rats, but can not accumulate noxious material on the biological chain in the environment and the ecosystem.On the other hand, because seed wormwood artemisia glue itself is colloid, (precipitation＜10mm) seed wormwood artemisia glue at first absorbs moisture after a little while broadcasting district's moisture, and seed can not get moisture, naturally be in resting state, be difficult for dodging bud, and (precipitation 〉=10mm), seed wormwood artemisia micelle colloid dissolves expansion naturally and plays the expanded effect of disintegration when washiness.In Pelleting dressing process, adopt super absorbent resin-SAP water-loss reducer simultaneously, solved the technological difficulties that dry season seedling water supply lacks.
Description of drawings
Accompanying drawing 1 is the preparation flow figure of biological glue type seed coating agent.
The present invention is further illustrated below in conjunction with embodiment.
Embodiment:
Embodiment 1: biological glue type seed coating agent includes polyacrylamide 50 grams, sodium carboxymethyl starch 100 grams, calcium-base bentonite 2000 grams, talcum powder 3000 grams, seed wormwood artemisia glue 200 grams, carboxymethyl cellulose 100 grams.
Its preparation method includes following steps: its preparation process is carried out at normal temperatures,
(1) in proportion polyacrylamide, sodium carboxymethyl starch, seed wormwood artemisia glue and carboxymethyl cellulose are pulverized, filter and mixed more than 30 minutes with ultra-fine pulverizing equipment, the fineness of check powder requires to reach more than 500 orders;
(2) in proportion talcum powder and calcium-base bentonite are pulverized, filter and mixed more than 30 minutes with ultra-fine pulverizing equipment, the fineness of check powder requires to reach more than 500 orders;
(3) two kinds of mixtures that obtain in step (1) and (2) are mixed in double roller mixer more than 60 minutes again, stable, as to check powder fineness and mensuration proportion require more than fineness 500 orders proportion 〉=1.6g/cm
3, qualified back packing.
Above-mentioned biological glue type seed coating agent is used for the obducensization of seed.
Embodiment 2: biological glue type seed coating agent includes polyacrylate 500 grams, sodium carboxymethylcellulose 600 grams, sodium bentonite 5000 grams, talcum powder 7000 grams, seed wormwood artemisia glue 1500 grams, carboxymethyl cellulose 1000 grams, zeolite powder 800 grams.
Its preparation method includes following steps: its preparation process is carried out at normal temperatures,
(1) in proportion polyacrylate, sodium carboxymethylcellulose, seed wormwood artemisia glue and carboxymethyl cellulose and zeolite powder are pulverized, filter and mixed more than 30 minutes with ultra-fine pulverizing equipment, the fineness of check powder requires to reach more than 500 orders;
(2) in proportion talcum powder and calcium-base bentonite are pulverized, filter and mixed more than 30 minutes with ultra-fine pulverizing equipment, the fineness of check powder requires to reach more than 500 orders;
(3) two kinds of mixtures that obtain in step (1) and (2) are mixed in double roller mixer more than 60 minutes again, stable, as to check powder fineness and mensuration proportion require more than fineness 500 orders proportion 〉=1.6g/cm
3, qualified back packing.
Above-mentioned biological glue type seed coating agent is used for the obducensization of seed.
Embodiment 3: biological glue type seed coating agent includes polyvinyl alcohol 250 grams, sodium carboxymethylcellulose and sodium carboxymethyl starch 350 grams, sodium bentonite and calcium-base bentonite 3500 grams, talcum powder 5000 grams, seed wormwood artemisia glue 850 grams, carboxymethyl cellulose 550 grams, zeolite powder 450 grams.
Its preparation method includes following steps: its preparation process is carried out at normal temperatures,
(1), in proportion with polyvinyl alcohol, sodium carboxymethylcellulose and sodium carboxymethyl starch, seed wormwood artemisia glue and
Carboxymethyl cellulose and zeolite powder are pulverized, filter and are mixed more than 30 minutes with ultra-fine pulverizing equipment, and the fineness of check powder requires to reach more than 500 orders;
(2), in proportion talcum powder and calcium-base bentonite and sodium bentonite are pulverized, filter and mixed more than 30 minutes with ultra-fine pulverizing equipment, the fineness of check powder requires to reach more than 500 orders;
(3), two kinds of mixtures obtaining in step (1) and (2) are mixed in double roller mixer more than 60 minutes again, the fineness of stable, check powder and measure proportion requires more than fineness 500 orders proportion 〉=1.6g/cm
3, qualified back packing.
Above-mentioned biological glue type seed coating agent is used for the obducensization of seed.
Embodiment 4: biological glue type seed coating agent includes polyvinyl alcohol 100 grams, sodium carboxymethylcellulose and sodium carboxymethyl starch 200 grams, sodium bentonite and calcium-base bentonite 2500 grams, talcum powder 3500 grams, seed wormwood artemisia glue 500 grams, carboxymethyl cellulose 150 grams, zeolite powder 100 grams.
Its preparation method includes following steps: its preparation process is carried out at normal temperatures,
(1), in proportion polyvinyl alcohol, sodium carboxymethylcellulose and sodium carboxymethyl starch, seed wormwood artemisia glue and carboxymethyl cellulose and zeolite powder are pulverized, filter and mixed more than 30 minutes with ultra-fine pulverizing equipment, the fineness of check powder requires to reach more than 500 orders;
(2), in proportion talcum powder and calcium-base bentonite and sodium bentonite are pulverized, filter and mixed more than 30 minutes with ultra-fine pulverizing equipment, the fineness of check powder requires to reach more than 500 orders;
(3), two kinds of mixtures obtaining in step (1) and (2) are mixed in double roller mixer more than 60 minutes again, the fineness of stable, check powder and measure proportion requires more than fineness 500 orders proportion 〉=1.6g/cm
3, qualified back packing.
Above-mentioned biological glue type seed coating agent is used for the obducensization of seed.
Embodiment 5 aerial seeding seed drift function analysis
At the plant seeds by airplane scene, fixedly anemometry point is set, the observation instantaneous wind speed.In plant seeds by airplane band both sides, be with 0m, 12.5m, 25m place that 1 * 1m is set apart from broadcasting respectively simultaneously
2Inoculation cloth sample prescription, the quantity that has that it's too late of aerial seeding seed in the observational record inoculation cloth sample prescription.Once observe 4 to broadcast band, measure kind of accuracy rate and the bright distance of moving of seed.
Show by the inoculation cloth sample prescription observational record that plant seeds by airplane operation band both sides are provided with, when wind speed is 50m at 5m/s, flying height, broadcasts under the condition that spoke is 50m, (large seed Pelleting multiple is 3 times to pelleted seed, small-sized seed Pelleting multiple is 5 times) the drift phenomenon do not take place, the drift distance (level) of capsuled seed on average reaches 25.3m, the bright distance (level) of moving of naked kind drifts to other broadcasting fully and is with, the serious inequality that causes aerial seeding seed to fall to planting up to 32.5m.Therefore, Pelleting is handled and is had tangible effect to reducing seed drift phenomenon.
Embodiment 6 aerial seeding seed displacement function analysis
Become the seedling investigation method according to plant seeds by airplane, broadcast back second day, broadcast in former design 1 * 1 square metre of sample prescription is set in the district, determine the value volume and range of product of aerial seeding seed in the sample prescription, and fixing sample prescription, after 7 days, observation seed displacement situation is measured wind speed every day and is changed.
The Pelleting of plant seeds by airplane dressing is to solve one of major technique measure of aerial seeding seed displacement problem.Seed pelleting Pelleting of poplar bavin and naked kind (contrast) are broadcast the district and are broadcast back 7 days in the sample prescription and preserve seed amount as shown in table 1.
Table 1 aerial seeding seed is handled kind of the amount situation that falls in the sample prescription that contrasts with naked kind
As known from Table 1, nakedly kind broadcast to impinging upon that average conserving species amount is 8.1/m in district's sample prescription
2, after Pelleting was handled, the average conserving species amount of aerial seeding seed reached 19.1/m
2, improving greatly than the unit are conserving species amount of naked kind contrast, effect is conspicuous.Therefore, use biological glue type seed coating agent of the present invention to carry out the displacement that the dressing Pelleting broadcasts district's seed to minimizing remarkable facilitation is arranged.
Embodiment 7: biological glue type seed coating agent is to pelleted seed water stability and disintegrative effect
Different seeds are because original seed varies in size, and the degree of its Pelleting is difference to some extent also.
The Pelleting Cotton seeds of present domestic plant seeds by airplane plant species, all be to use a kind of adhesive, and the overwhelming majority is chemical jelly, when Pelleting is handled, it is poisonous to add some again, and biochemicals that can be residual to be playing avoidance effect, though they can play certain repellent and reduce the effect of seed displacement, residue is to the enrichment of food chain noxious material in this district system from now on and poison and have certain effect.And among the present invention, the biogum that is adopted-seed wormwood artemisia glue water imbibition is strong, concern in proportion when adding the dressing Pelleting and add certain hydroscopic high-molecular resin, meet water after the Pelleting and can generate adhesive, pastel, and has cohesive action, after seed lands like this, just with grains of sand gluing, seed weight is increased, thereby reduced the seed that produces because of wind erosion
The displacement effect, when precipitation≤10mm, the water absorbing agent in biocolloid and the pill at first absorbs a certain amount of moisture, seed can not get its imbibition required minimum moisture of sprouting, still be in resting state, avoided " sudden strain of a muscle bud " phenomenon, improved the grain number of effective chitting piece.When run into biogum Pelleting seeds treated 〉=10mm precipitation after, disintegration rapidly, the germination of sprouting rapidly, because pelleted seed is interior except that containing biogum, also have for the required various nutriments of seedling primary growth, thereby growth of seedling is rapid, biogum is because of there being specific peculiar smell simultaneously, can play the repellent bird, the mouse damaging effect, and it is nuisanceless, do not pollute the environment, result of study proves, utilizes biogum that common plant seeds by airplane plant species is handled, can guarantee that aerial seeding seed has special repellent effect, avoid bird mouse harm, the use of biogum has solved the persistence of repellent effect to nutrient demand required adequate moisture and plant seeds by airplane plant species seedling phase in the time of guaranteeing plant seed germination again, nonstaining property, validity and dry season seedling moisture, the technological difficulties of nutrient supply.
Embodiment 8 dressing Pelletings are handled improving plant seeds by airplane woods grass seed germination rate function analysis
It is as shown in table 2 with the nursery germination percent and the germination vigor of naked kind contrast that the back is handled in poplar bavin, the Pelleting of Caragana intermedia dressing.
The germination rate of table 2 coat pelleted seeds and naked kind and germination vigor table
| Repeat | The poplar bavin | Middle golden pheasant | ||||||
| Naked kind | The dressing Pelleting | Naked kind | The dressing Pelleting | |||||
| Germination rate | Germination vigor | Germination rate | Germination vigor | Germination rate | Germination vigor | Germination rate | Germination vigor | |
| 1 2 3 4 | 60 61 64 65 | 34 31 42 31 | 67 65 69 73 | 35 31 40 52 | 75 63 63 78 | 41 40 40 51 | 87 77 81 76 | 44 53 39 49 |
| On average | 62.5 | 34.5 | 68.5 | 39.5 | 69.75 | 43 | 80.25 | 46.25 |
As can be seen from Table 2, after the dressing Pelleting, the nursery germination percent of poplar bavin seed and middle chicken brocade youngster seed all increases.Compare with naked kind, dressing Pelleting poplar bavin seed nursery germination percent has been increased to 68.5% by 62.5% of naked kind, has improved 6%; The nursery germination percent of Caragana intermedia has been brought up to 80.25% of dressing Pelleting by 69.75% of naked kind, has improved 10.5%, and germination vigor also increases simultaneously.After the dressing Pelleting is described, can improve seed quality, promote seed sprouting.
It needs to be noted, seed after the dressing Pelleting is compared with naked kind, it reaches the highest date of germination vigor, to postpone 1-2 day after the general Pelleting, this sprouts to the preservation of aerial seeding seed and suction is favourable, simultaneously the dressing Pelleting is described also after, seed imbibition process is: because the obducens parcel, at first be the hygroscopic agent suction in the obducens, seed could absorb water and sprout then.This for aerial seeding seed stable on Shamian Island and when sprouting in the subenvironment improvement of moisture positive effect is all arranged.
The growth effect analysis to the plant seeds by airplane nursery stock is handled in embodiment 9 dressing Pelletings
Owing in the dressing Pelleting process, added hygroscopic agent, repellant and various nutriment, thus to broadcast the back seed sprout and growth of seedling has produced obvious facilitation.The root growth of 15 days plant seeds by airplane seedling after broadcast and the situation of aerial growth are analyzed, all be that the amount of growth that the dressing Pelleting is handled is higher than control group, (in the Pelleting processing procedure, owing to contain in the dressing and help that seed is sprouted and the nutritive element of growth of seedling, therefore broadcast back 15 days, the average root of poplar bavin coat pelleted seeds has reached 35.62mm, the long then only long 23.7mm of the average root of the naked kind of contrast poplar bavin, and the root length of coat pelleted seeds has increased 11.92mm than naked kind; From the high upgrowth situation of acrial part and nursery stock, also be that the Pelleting processing is better than naked kind contrast.Broadcast back 15 days, the poplar bavin seedling height that the dressing Pelleting is handled on average reaches 14.53mm, and the poplar bavin height of seedling of naked kind contrast on average only is 9.87mm, and the two differs and reaches 4.66mm.
In sum, use biological glue type seed coating agent of the present invention that seed is carried out the dressing Pelleting and have following advantage:
At first, the coat pelleted seeds performance is good. Woods straw bag clothing pelleted seed has retaining, protection against rodents, the comprehensive function such as disease-resistant, use woods straw bag clothing pelleted seed and not only sow conveniently, the more important thing is the germination percentage that improved seed and the survival rate of seedling, cultivated strong sprout, increased output, thereby accepted by numerous peasants and herdsmen easily.
Its two, the coat pelleted seeds cost is lower. Woods straw bag clothing seed adopts new equipment, new material, new prescription, new technology, and is not only cheap but also easy to operate, therefore is conducive to spread.
At last, the quality of coat pelleted seeds is high. Woods straw bag clothing pelleted seed adopts advanced composition and engineering to have the seed rate to reach 100%, and single seed rate is neatly spent greater than 98% greater than 98%, good evenness, and existing stronger water imbibition has again certain compression strength, strong adaptability, suitable for mechanization sowing. Especially the northwestern large tracts of land scattered seeds by airplane for afforestation of China, both solved the problem of the difficult earthing of seed drift, displacement and seed, improved the quality of scattered seeds by airplane for afforestation, solved again the problem that woods grass emergence rate is low, growth of seedling is slow, survival rate is low, output is little under the barren and drought condition of soil, as seen its application prospect is very wide.
Claims (13)
1. a biological glue type seed coating agent is characterized in that, comprises the following composition in parts by weight:
But water-absorbing resins 0.5-5 part
Disintegrant 1-6 part
Bentonite 20-50 part
Talcum powder 30-70 part
Seed wormwood artemisia glue 2-15 part
Carboxymethyl cellulose 1-10 part.
2. biological glue type seed coating agent as claimed in claim 1 is characterized in that, but described water-absorbing resins is SAP water-loss reducer a---polyacrylamide, one or more of polyacrylate or polyvinyl alcohol.
3. biological glue type seed coating agent as claimed in claim 1 is characterized in that described disintegrant is selected from one or both in sodium carboxymethyl starch and the sodium carboxymethylcellulose.
4. biological glue type seed coating agent as claimed in claim 1 is characterized in that described bentonite is selected from one or both in calcium-base bentonite and the sodium bentonite.
5. any described biological glue type seed coating agent among the claim 1-4 is characterized in that, also comprises the zeolite powder 1-8 part in parts by weight.
6. method for preparing any described biological glue type seed coating agent among the claim 1-5 is characterized in that it includes following steps:
(1) but in proportion water-absorbing resins, disintegrant, seed wormwood artemisia glue and carboxymethyl cellulose are mixed, the fineness of check powder requires to reach more than 500 orders;
(2) in proportion talcum powder and bentonite are mixed, the fineness of check powder requires to reach more than 500 orders;
(3) two kinds of mixtures that obtain in step (1) and (2) are mixed, stablize, check the fineness of powder and measure proportion again, require more than fineness 500 orders proportion 〉=1.6g/cm
3, qualified back packing.
7. as preparing the method for biological glue type seed coating agent as described in the claim 6, it is characterized in that the mixing in above-mentioned steps (1) and (2) is to pulverize, filter and mix more than 30 minutes with ultra-fine pulverizing equipment.
8. as preparing the method for biological glue type seed coating agent as described in the claim 6, it is characterized in that the mixing in the above-mentioned steps (3) is to mix more than 60 minutes in double roller mixer.
9. as preparing the method for biological glue type seed coating agent as described among the claim 6-8 any one, it is characterized in that preparation process is carried out at normal temperatures.
10. as preparing the method for biological glue type seed coating agent as described in the claim 6, it is characterized in that, further add zeolite powder 1-8 part in the step (1), mix in parts by weight.
11., it is characterized in that as preparing the method for biological glue type seed coating agent as described among the claim 7-8 any one, further add zeolite powder 1-8 part in the step (1) in parts by weight, mix.
12., it is characterized in that as preparing the method for biological glue type seed coating agent as described in the claim 9, further add zeolite powder 1-8 part in the step (1) in parts by weight, mix.
13. the purposes as biological glue type seed coating agent as described among the claim 1-5 any is characterized in that, any described biological glue type seed coating agent among the claim 1-5 is used for the obducensization of seed.
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| Publication number | Priority date | Publication date | Assignee | Title |
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| CN100477910C (en) * | 2007-05-11 | 2009-04-15 | 赵小红 | Ecological environment-friendly coating for treating seeds and plant rhizomes |
| CN105062434B (en) * | 2015-07-31 | 2018-03-30 | 成都理工大学 | A kind of Pectinate Neopallasia herb vegetable gum type mud and preparation method thereof |
| JP5995340B1 (en) * | 2016-04-28 | 2016-09-21 | 住化農業資材株式会社 | Seed coating material |
| CN109832102A (en) * | 2017-09-30 | 2019-06-04 | 马振宇 | A method of utilizing plant in treating sand field |
| CN111108848A (en) * | 2019-12-10 | 2020-05-08 | 亿利资源集团有限公司 | Pelleted seed and seed pelleting method |
Citations (3)
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|---|---|---|---|---|
| CN1156214C (en) * | 2000-09-28 | 2004-07-07 | 上海众伟生化有限公司 | Obducens dressing agent and dressing process for pasture seed |
| JP2005089443A (en) * | 2003-08-08 | 2005-04-07 | Oji Paper Co Ltd | Self-adhesive sheet having insect repellent effect |
| CN1663389A (en) * | 2005-02-23 | 2005-09-07 | 河北省农林科学院资源环境研究所 | Prescription for cotton seeds pelletization and processing method |
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Patent Citations (3)
| Publication number | Priority date | Publication date | Assignee | Title |
|---|---|---|---|---|
| CN1156214C (en) * | 2000-09-28 | 2004-07-07 | 上海众伟生化有限公司 | Obducens dressing agent and dressing process for pasture seed |
| JP2005089443A (en) * | 2003-08-08 | 2005-04-07 | Oji Paper Co Ltd | Self-adhesive sheet having insect repellent effect |
| CN1663389A (en) * | 2005-02-23 | 2005-09-07 | 河北省农林科学院资源环境研究所 | Prescription for cotton seeds pelletization and processing method |
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| 油蒿和籽蒿种子化学组成的研究. 鲁作民.植物学通报，第12卷第1期. 1995 * |
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