CN1188035C - Wax emulsion for treating seeds and its preparation and usage - Google Patents
Wax emulsion for treating seeds and its preparation and usage Download PDFInfo
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- CN1188035C CN1188035C CNB991205189A CN99120518A CN1188035C CN 1188035 C CN1188035 C CN 1188035C CN B991205189 A CNB991205189 A CN B991205189A CN 99120518 A CN99120518 A CN 99120518A CN 1188035 C CN1188035 C CN 1188035C
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Abstract
The present invention relates to a wax emulsion for soaking and dipping seeds and a preparation and use method thereof. The wax emulsion is prepared from wax substances, resins, an emulsifying agent, a plant growth regulating agent, insecticide, bactericide and fertilizer. After seeds of grain crops are soaked and dipped in the wax emulsion, the seeds have the capability of resisting drought and preventing underground pest disease, the germination and the root generation of the seeds are promoted, and the germination vigor of the seeds is enhanced; thus, the present invention is beneficial to the sturdiness of seedlings and lays a foundation for plenteous harvests.
Description
The present invention relates to a kind of seed Wax emulsion for treating and preparation and application thereof, dip wax emulsion and the preparation and application thereof of processing especially for the cereal crops seed.
Seed is processed has extremely important meaning for agricultural. Usually seed all is directly to be sown in the soil, by absorbing moisture expansion germination and emergence in the soil. If soil moisture is sufficient, most of seeds can both germination and emergence. But in dry water-deficient area, soil water-containing divides few, seed can not absorb enough moisture, thereby also just can not be by the germination and emergence in season, can cause the phenomenon that few seedling or rice shoot are irregular or rice shoot is thin and delicate, newborn rice shoot is because root system is flourishing not, and it is poor to absorb moisture and nutrient ability, also can cause poor growth. And seed directly is sown into and encroached on by the disease worm. In order to make seed have the ability that drought resisting prevents disease and pest, make the thick shape of seed seedling bud, vitality is strong, and present useful frequency electromagnetic waves is processed seed to prevent and treat the sick and increase output of rice shoot, and also useful various seed pelleting agent, the powder of taking root etc. are processed seeds. Chinese patent C N1076799 also discloses a kind of seed pelleting agent, because this coating agent and like product all contain the high power water-absorbing resin that molecular weight is large, be difficult for degraded, long-term use causes soil compaction easily, and its cost is higher.
The purpose of this invention is to provide a kind of seed that is conducive to and after planting can prevent disease and pest, drought resisting, promote that germination takes root, improve potentiality of seed, make rice shoot strong, and easy to use, simple for production, low-cost seed Wax emulsion for treating, the present invention gives the preparation and application of this wax emulsion in addition.
Seed of the present invention is dipped processing wax emulsion and is contained following component: (by weight percentage meter)
3～16% wax class materials;
3～13% resins;
2～8% emulsifying agents;
0.005～0.01% plant growth regulator;
0～0.5% agricultural chemicals;
0～8% little fertilizer;
56～90% water.
Seed of the present invention is dipped and is processed the described wax class of wax emulsion material to be selected from fusing point be 52～60 ℃ paraffin, and dropping point is 67～75 ℃ ceresine, castor wax, and palm wax etc., also available two or more mixture in them, its preferred content is 3～4%.
Seed of the present invention is dipped and processed the described resin of wax emulsion can be that natural resin also can be synthetic resin, such as rosin, shellac, Petropols, polyvinyl alcohol, polyisobutene, poly-propionamide etc., also available two or more mixture in them, its preferred content is 5～6%.
Seed of the present invention is dipped and processed the described emulsifying agent of wax emulsion is to be selected from non-ionic surface active agent, such as C6-
C
24AEO (peregal), C6-C
24APES (О П series), fatty acid loss water sorbit ester APEO (TWEEN series) etc., its preferred content is 3～4%.
Seed of the present invention is dipped and processed the described plant growth regulator of wax emulsion is to be selected from N-benzyladenine (6BA), indolebutyric acid (1BA), 2,4-dichlorphenoxyacetic acid (2,4-D).
Seed of the present invention is dipped and processed the described agricultural chemicals of wax emulsion is to be selected from organic insecticide or mineral oil pesticide, such as white oil emulsion, Mi Ding, thymol (5-methyl-6-isopropyl phenol), potassium oleate, Dormant oils, be selected from organophosphor, arsenic, tin bactericide, such as Plondrel, asomate, hydroxyl tributyltin etc.
Seed of the present invention is dipped and processed the described little fertilizer of wax emulsion is to be selected from ammonium dihydrogen phosphate (ADP), potassium dihydrogen phosphate, and urea etc., its preferred content are 3～4%.
Seed of the present invention is dipped and is processed wax emulsion preparation method and be: by proportioning take by weighing wax class material, resin (abbreviation oil phase) joins in the reactor, slowly be heated to 120～130 ℃, mix reaction 20～30 minutes, emulsifying agent is added to the water is heated to 80～95 ℃, under the high-speed stirred hot water is joined dispersion and emulsion in the oil phase gradually, hot water adds rear continuation and stirred constant 20～30 minutes, process through homogenizer again, add at last plant growth regulator, agricultural chemicals, water-soluble good little fertilizer namely is that seed of the present invention is dipped processing wax emulsion.
Seed of the present invention is dipped the using method of processing wax emulsion: seed is soaked in water 24～48 hours first, reap in the open-top receptacle after making seed suction moisture, add again seed processing wax emulsion of the present invention and dip coating, after the surface of the seed is all coated, in the time of can pulling airing to mutual adhesion out, just can sow.
Seed of the present invention is dipped and is processed wax emulsion, and selecting the emulsion particle of wax class material, natural or synthetic resin, nonionic surface active agent preparation, tiny evenly adhesion is strong, and stability is good. Seed can form a layer film at the surface of the seed after dipping processing with this agent, and this tunic can play the effect of water conservation moisturizing, and preferably gas permeability is arranged again, can satisfy the required oxygen of seed germination, is of value to the seed expansion and germinates. Contain plant growth regulator in the preparation, can be penetrated into the Root Absorption of Interior Seed or grown rice shoot, to promote seed or the growth differentiation of plant cell and the formation of organ. Preparation forms layer protecting film at the surface of the seed, can effectively prevent disease and pest, if add the disease and pest that suitable agricultural chemicals composition can more effectively prevent seed or plant again. Can add suitable N,P,K fertilizers in the preparation, namely the required element of plant growth is conducive to rice shoot and grows up strong and sturdy, owing to these nutriments concentrate on around the seed, and can be relatively easily by still underdeveloped rice shoot absorption of root system. Resin in the preparation also can absorb a certain amount of moisture, is conducive to rice shoot and improves drought-resistant ability. Seed of the present invention is dipped Wax emulsion for treating can select various suitable components according to the variation of agrotype difference and environment for use, such as the plant growth regulator that can select as the case may be dissimilar and quantity, agricultural chemicals, little fertilizer etc., therefore the wax emulsion scope of application of the present invention is extensive, namely can be applicable to dry crop and also go for wet crop, can also be used for the processing of other seed, such as vegetable seeds, flower seed, trees seed, grass seed etc.
It is extremely convenient to use seed of the present invention to dip processing wax emulsion processing seed, and except the seed that requires specially treated, general seed can both be processed with this agent. Do not need special equipment to process, only need general container to operate during use, and price is extremely cheap, every mu of cereal crops seed is processed and is only cost with 3～4 yuan. The composition of selecting in the preparation is the material of easy degraded, uses for a long time soil without any harmful effect, does not also cause environmental pollution.
The below specifies the present invention with embodiment, and wherein each component by weight percentage.
Embodiment 1
2% paraffin (58 ℃ of fusing points);
1% ceresine (70 ℃ of dropping points);
3% rosin;
4% polyvinyl alcohol;
5% polyisobutene;
0.2% poly-propionamide;
6% SA-20 (laruyl alcohol and ethylene oxide condensate);
0.005% N-benzyladenine (6BA);
0.1% white oil emulsion;
0.1% asomate;
1% ammonium dihydrogen phosphate (ADP);
1% potassium dihydrogen phosphate;
The water of surplus.
Proportioning by embodiment 1 claims the oil phase material adding stainless steel reactors such as wax tree fat, slowly be heated to 120 ℃, mix reaction 20 minutes, then add the mixed dispersion and emulsion of the hot water contain 95 ℃ of emulsifying agents under the high-speed stirred, add behind the hot water constant 30 minutes again, process through homogenizer again, add at last plant growth regulator, agricultural chemicals, water-soluble good little fertilizer namely is that the seed of present embodiment is dipped processing wax emulsion.
Embodiment 2
3% paraffin (54 ℃ of fusing points);
3% ceresine (75 ℃ of dropping points);
1% castor wax;
3% shellac;
2% polyvinyl alcohol;
3% Petropols;
0.4% poly-propionamide;
8% О П-10 (APES);
0.007% the Yin butyric acid (1BA) of tut-tuting;
0.2% meter fourth;
0.1% Plondrel;
2% ammonium dihydrogen phosphate (ADP);
2% potassium dihydrogen phosphate;
The water of surplus.
Proportioning by embodiment 2 claims the oil phase material adding stainless steel reactors such as wax tree fat, slowly be heated to 125 ℃, mix reaction 25 minutes, then add the mixed dispersion and emulsion of the hot water contain 90 ℃ of emulsifying agents under the high-speed stirred, add behind the hot water constant 25 minutes again, process through homogenizer again, add at last plant growth regulator, agricultural chemicals, water-soluble good little fertilizer namely is that the seed of present embodiment is dipped processing wax emulsion.
Embodiment 3
4% paraffin (54 ℃ of fusing points);
3% ceresine (75 ℃ of dropping points);
4% castor wax;
3% shellac;
3% polyisobutene;
0.3% poly-propionamide;
4% O-20 (laruyl alcohol and ethylene oxide condensate);
0.008% 2,4-D (2,4-dichlorphenoxyacetic acid);
0.2% thymol;
0.1% hydroxyl tributyltin;
3% ammonium dihydrogen phosphate (ADP);
3% potassium dihydrogen phosphate;
The water of surplus.
Proportioning by embodiment 3 claims the oil phase materials such as wax, resin to add stainless steel reactor, slowly be heated to 13 0 ℃, mix reaction 30 minutes, then add the mixed dispersion and emulsion of the hot water contain 85 ℃ of emulsifying agents under the high-speed stirred, add behind the hot water constant 20 minutes again, process through homogenizer again, add at last plant growth regulator, agricultural chemicals, water-soluble good little fertilizer namely is that the seed of present embodiment is dipped processing wax emulsion.
Embodiment 4
9% palm wax (three grades);
6% paraffin (52 ℃ of fusing points);
2% shellac;
2% polyisobutene;
2% A-20 (fatty alcohol and ethylene oxide condensate);
0.6% poly-propionamide;
0.01% indolebutyric acid;
0.3 the % potassium oleate;
0.2 asomate;
4% ammonium dihydrogen phosphate (ADP);
4% potassium dihydrogen phosphate;
The water of surplus.
Proportioning by embodiment 4 takes by weighing the oil phase materials adding stainless steel reactors such as wax, resin, slowly be heated to 130 ℃, mix reaction 30 minutes, then add the mixed dispersion and emulsion of the hot water contain 80 ℃ of emulsifying agents under the high-speed stirred, add behind the hot water constant 30 minutes again, process through homogenizer again, add at last plant growth regulator, agricultural chemicals, water-soluble good little fertilizer namely is that the seed of present embodiment is dipped processing wax emulsion.
Embodiment 5
2% ceresine (75 ℃);
3% paraffin (54 ℃ of fusing points);
2% shellac;
2% polyisobutene;
3% Petropols;
1% polyethylene;
7% newborn lark A (fatty alcohol and ethylene oxide condensate);
0.3% poly-propionamide;
0.006% indolebutyric acid;
The water of surplus.
Proportioning by embodiment 5 takes by weighing the oil phase materials adding stainless steel reactors such as wax, resin, slowly be heated to 125 ℃, mix reaction 25 minutes, then add the mixed dispersion and emulsion of the hot water that contains 85 ℃ of emulsifying agents under the high-speed stirred, add behind the hot water constant 25 minutes again, processing through homogenizer, add at last plant growth regulator, namely is that the seed of present embodiment is dipped processing wax emulsion.
Embodiment 6
3% palm wax (three grades);
4% paraffin (52 ℃ of fusing points);
2% ceresine;
1% rosin;
1% shellac;
1% polyisobutene;
4% T-80 (TWEEN-80);
0.2% poly-propionamide;
0.01％2、4-D；
0.3% Dormant oils;
The water of surplus.
Proportioning by embodiment 6 takes by weighing the oil phase materials adding stainless steel reactors such as wax, resin, slowly be heated to 120 ℃, mix reaction 20 minutes, then add the mixed dispersion and emulsion of the hot water that contains 85 ℃ of emulsifying agents under the high-speed stirred, add behind the hot water constant 25 minutes again, process through homogenizer again, add at last plant growth regulator, agricultural chemicals namely is that the seed of present embodiment is dipped processing wax emulsion.
The application situation of following result of the test explanation embodiment:
Test on the corn on dry land crop of Chaoyang area non-irrigated condition northeastward and test.
Table 1: wax emulsion is processed seminal root length, radical investigation
| Date | May 16 | June 2 | ||
| Project | Average root length/cm | Radical/ | Average root length/cm | Radical/ |
| Embodiment 1 | 7.0 | 4 | 10.5 | 15 |
| Embodiment 2 | 8.5 | 4 | 11 | 14 |
| Embodiment 3 | 7.0 | 4 | 11.5 | 15 |
| Embodiment 4 | 7.6 | 4 | 11.7 | 14 |
| Embodiment 5 | 7.8 | 4 | 11.8 | 15 |
| Embodiment 6 | 8.0 | 4 | 11.6 | 14 |
| Do not soak contrast | 6.5 | 3 | 10 | 10 |
Long 2 to 4 centimetres of the long contrast of the seminal root of processing, many 1 to 4 of radical is conducive to moisture and nutrient that rice shoot absorbs soil.
Table 2: corn is processed the seed production contrast
| Project | 100-grain weight/g | Fringe grain weight/g | Seed and cane weight ratio |
| Embodiment 1 | 30.5 | 1145 | 1.4 |
| Embodiment 2 | 30.3 | 1221 | 1.3 |
| Embodiment 3 | 35.4 | 1213 | 1.3 |
| Embodiment 4 | 36.4 | 1211 | 1.2 |
| Embodiment 5 | 32.0 | 1138 | 1.4 |
| Embodiment 6 | 33.0 | 1176 | 1.3 |
| Do not soak contrast | 26.5 | 875 | 1.1 |
Data can find out that processing hundred grain weight, fringe grain heavily are significantly increased from table.
Product of the present invention has carried out field test in gaozhou,guangdong, Leizhou District paddy rice, and the result is as follows.
Table 3: wax emulsion is processed the seedling quality application form
| Project | Stem goes out the number of sheets/sheet | Stem height/cm | False stem height/cm | False stem is thick/cm | The long cm of root | The white root bar | Two tiller seedling rate/% | Single pearl fresh weight/g | Single pearl dry weight/g |
| Embodiment 1 | 5.8 | 39.8 | 14.2 | 0.44 | 4.5 | 14.5 | 5 | 0.56 | 0.14 |
| Embodiment 2 | 5.6 | 38.7 | 14.3 | 0.43 | 4.6 | 15.6 | 4 | 0.66 | 0.15 |
| Embodiment 3 | 6.1 | 42.8 | 14.9 | 0.45 | 4.8 | 14.3 | 5 | 0.79 | 0.15 |
| Embodiment 4 | 5.9 | 39.3 | 14.5 | 0.44 | 4.7 | 18.2 | 5 | 0.75 | 0.15 |
| Embodiment 5 | 5.7 | 39.9 | 14.8 | 0.44 | 4.9 | 16.0 | 4 | 0.68 | 0.15 |
| Embodiment 6 | 6.0 | 40.1 | 14.7 | 0.43 | 4.8 | 15.5 | 5 | 0.71 | 0.15 |
| Contrast | 5.3 | 36.2 | 13.2 | 0.39 | 3.2 | 13.3 | 2 | 0.45 | 0.13 |
Table 4: wax emulsion is processed seed rice leaf-area coefficient and dry matter result of the test
| Growth period | The Sheng of the tillering phase | The figurines fringe phase | Milk stage | |||
| Project | Blade face product (mu) | Total dry weight (gram) | Blade face product (mu) | Total dry weight (gram) | Blade face product (mu) | Total dry weight (gram) |
| Embodiment 1 | 3.56 | 0.38 | 6.43 | 2.31 | 2.30 | 3.25 |
| Embodiment 2 | 3.88 | 0.38 | 6.42 | 2.31 | 2.34 | 3.18 |
| Embodiment 3 | 3.45 | 0.39 | 6.88 | 2.34 | 2.28 | 3.77 |
| Embodiment 4 | 3.65 | 0.38 | 7.11 | 2.33 | 2.26 | 4.0 |
| Embodiment 5 | 3.60 | 0.38 | 6.79 | 2.32 | 2.31 | 3.14 |
| Embodiment 6 | 3.58 | 0.38 | 6.58 | 2.33 | 2.29 | 3.80 |
| Contrast | 3.26 | 0.31 | 6.19 | 2.15 | 1.81 | 2.97 |
Can find out that from table 3, table 4 data the rice seeding growth that this wax emulsion is processed contrasts rapidly, leaf area increases fast, and dry-matter accumulation is many, has the basis of big panicle many grains per panicle.
Table 5: wax emulsion is processed seed rice to the impact of germinating energy germination percentage
| Project | Germinating energy (%) | Germination percentage (%) | Remarks | ||||||
| Process | A | B | C | On average | A | B | C | On average | Process 4 days " Invest, Then Investigate " germinating energies, 6 days " Invest, Then Investigate " germination percentages. |
| Embodiment 1 | 75 | 71 | 76 | 74 | 76 | 76 | 78 | 77 | |
| Embodiment 2 | 76 | 75 | 75 | 75 | 86 | 87 | 84 | 85 | |
| Embodiment 3 | 87 | 83 | 80 | 83 | 83 | 84 | 83 | 83 | |
| Embodiment 4 | 80 | 78 | 79 | 76 | 86 | 84 | 84 | 85 | |
| Embodiment 5 | 76 | 78 | 75 | 76 | 85 | 86 | 83 | 85 | |
| Embodiment 6 | 80 | 78 | 76 | 78 | 86 | 87 | 86 | 86 | |
| Contrast | 5 | 6 | 7 | 6 | 7 | 7 | 8 | 7 | |
Table 5 data can find out that seed rice germinating energy, germination percentage that this agent is processed improve a lot.
Table 6: wax emulsion is processed as a result table of each cell production of seed rice
| Project | Each cell production (kilogram) | Per mu yield/kg | Contrast volume increase/kg | Rate of growth/% | ||||
| A | B | C | D | On average | ||||
| Embodiment 1 | 6.80 | 6.45 | 6.85 | 6.44 | 6.64 | 338.9 | 21.9 | 6.91 |
| Embodiment 2 | 6.98 | 6.55 | 6.98 | 6.55 | 6.77 | 351.0 | 34.0 | 10.73 |
| Embodiment 3 | 6.88 | 6.48 | 6.88 | 6.54 | 6.70 | 346.5 | 29.5 | 9.31 |
| Embodiment 4 | 7.21 | 7.10 | 7.20 | 6.98 | 7.12 | 358.4 | 41.4 | 13.06 |
| Embodiment 5 | 6.92 | 6.96 | 6.99 | 7.01 | 6.97 | 355.3 | 38.3 | 12.08 |
| Embodiment 6 | 6.85 | 6.78 | 6.80 | 6.91 | 6.84 | 352.4 | 35.4 | 11.17 |
| Contrast | 6.65 | 6.15 | 6.55 | 6.01 | 6.34 | 317.0 | ||
Table 6 data show that processing the seed rice ultimate output also is greatly improved.
Dip processing wax emulsion from corn, this seed of rice seed soaking Processing Test presentation of results good effect is arranged.
Claims (10)
1, a kind ofly dip the wax emulsion of processing for seed, comprise following composition, content by weight percentage:
3～16% wax class materials;
3～13% resins;
2～8% emulsifying agents;
0.005～0.01% plant growth regulator;
0～0.5% desinsection, bactericide;
0～8% little fertilizer;
56～90% water.
2, dip by the seed of claim 1 and process wax emulsion, it is characterized in that described wax class material is: paraffin, ceresine, castor wax, palm wax or two or more mixture wherein, content is 3～4% by weight.
3, dip processing wax emulsion by the seed of claim 1, it is characterized in that described resin is: rosin, shellac, Petropols, polyvinyl alcohol, polyisobutene, poly-propionamide or two or more mixture wherein, content is 5～6% by weight.
4, dip processing wax emulsion by the seed of claim 1, it is characterized in that described emulsifying agent is non-ionic surface active agent.
5, dip processing wax emulsion by the seed of claim 1 or 4, it is characterized in that described emulsifying agent is selected from C6-C
24AEO, C6-C
24APES, fatty acid loss water sorbit ester APEO, content are 3～4% by weight.
6, dip by the seed of claim 1 and process wax emulsion, it is characterized in that described plant growth regulator is selected from: N-benzyladenine, indolebutyric acid, 2, the 4-dichlorphenoxyacetic acid.
7, dip processing wax emulsion by the seed of claim 1, it is characterized in that described desinsection, bactericide are selected from: white oil emulsion, Mi Ding, 5-methyl-6-isopropyl phenol, potassium oleate, Dormant oils, Plondrel, asomate, hydroxyl tributyltin or two or more mixture wherein, content is 0.1～0.5% by weight.
8, dip processing wax emulsion by the seed of claim 1, it is characterized in that described little fertilizer is selected from: ammonium dihydrogen phosphate (ADP), potassium dihydrogen phosphate ammonia, urea, content are 3～4% by weight.
9, a kind of seed of claim 1 is dipped the preparation method who processes wax emulsion, it is characterized in that: by proportioning take by weighing wax class material, resin joins in the reactor, slowly be heated to 120～130 ℃, mix reaction 20～30 minutes, emulsifying agent is added to the water is heated to 80～95 ℃, under the high-speed stirred hot water is joined dispersion and emulsion in the oil phase gradually, hot water adds rear continuation and stirred constant 30～40 minutes, process through homogenizer again, add at last plant growth regulator, agricultural chemicals, little fertilizer that water is solvent.
10, a kind of seed is dipped processing method, it is characterized in that seed being soaked in water 24～48 hours first, and then the wax emulsion of right to use requirement 1 is dipped processing, and the surface of the seed is pulled airing out after all coating.
Priority Applications (1)
| Application Number | Priority Date | Filing Date | Title |
|---|---|---|---|
| CNB991205189A CN1188035C (en) | 1999-09-17 | 1999-09-17 | Wax emulsion for treating seeds and its preparation and usage |
Applications Claiming Priority (1)
| Application Number | Priority Date | Filing Date | Title |
|---|---|---|---|
| CNB991205189A CN1188035C (en) | 1999-09-17 | 1999-09-17 | Wax emulsion for treating seeds and its preparation and usage |
Publications (2)
| Publication Number | Publication Date |
|---|---|
| CN1288661A CN1288661A (en) | 2001-03-28 |
| CN1188035C true CN1188035C (en) | 2005-02-09 |
Family
ID=5281559
Family Applications (1)
| Application Number | Title | Priority Date | Filing Date |
|---|---|---|---|
| CNB991205189A Expired - Lifetime CN1188035C (en) | 1999-09-17 | 1999-09-17 | Wax emulsion for treating seeds and its preparation and usage |
Country Status (1)
| Country | Link |
|---|---|
| CN (1) | CN1188035C (en) |
Families Citing this family (9)
| Publication number | Priority date | Publication date | Assignee | Title |
|---|---|---|---|---|
| CN1917757B (en) * | 2004-02-16 | 2010-06-09 | 巴斯福股份公司 | Formulation for seed treatment comprising polymeric stickers |
| GB201106762D0 (en) * | 2011-04-20 | 2011-06-01 | Exosect Ltd | Compositions for growth and vigour from oilseeds |
| GB201106758D0 (en) * | 2011-04-20 | 2011-06-01 | Exosect Ltd | Compositions for growth and vigour in vegetables |
| GB201106747D0 (en) | 2011-04-20 | 2011-06-01 | Exosect Ltd | Coating compositions for pathogen control in vegetables |
| GB201106763D0 (en) * | 2011-04-20 | 2011-06-01 | Exosect Ltd | Compositions for growth and vigour in cotton |
| CN103788874B (en) * | 2012-11-05 | 2016-08-03 | 中国石油化工股份有限公司 | A kind of ginseng seed's inorganic agent and preparation method thereof |
| CN107711867A (en) * | 2017-09-26 | 2018-02-23 | 安徽徽大农业有限公司 | A kind of growth promoter for rice and preparation method thereof |
| GB202000685D0 (en) * | 2020-01-16 | 2020-03-04 | Croda Int Plc | Film & Seed coating composition |
| CN112159268B (en) * | 2020-09-22 | 2022-07-01 | 中国科学院植物研究所 | Pelleting composition and pelleting method for German chamomile seeds |
-
1999
- 1999-09-17 CN CNB991205189A patent/CN1188035C/en not_active Expired - Lifetime
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| Publication number | Publication date |
|---|---|
| CN1288661A (en) | 2001-03-28 |
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