CN102845432A - Rice seed coating agent - Google Patents
Rice seed coating agent Download PDFInfo
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- CN102845432A CN102845432A CN2012103726073A CN201210372607A CN102845432A CN 102845432 A CN102845432 A CN 102845432A CN 2012103726073 A CN2012103726073 A CN 2012103726073A CN 201210372607 A CN201210372607 A CN 201210372607A CN 102845432 A CN102845432 A CN 102845432A
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Abstract
The invention relates to the field of seed treating agents, in particular to a rice seed coating agent, which comprises the following raw materials in parts by weight: 0.2-0.3 part of tebuconazole, 1-2 parts of dispersing agent, 5-7 parts of film forming agent, 0.4-0.6 part of thickening agent, 2-4 parts of anti-freezing agent, 1-3 parts of warning color, 0.5-1 part of defoaming agent and 80-90 parts of water, wherein the pH (potential of hydrogen) is 6-7. The seedling protection rice seed coating agent provided by the invention has the characteristics of good film forming performance, long efficacy duration, good efficacy, stable efficacy, high safety for rice, convenience in use, simplified agricultural operation and the like, other chemicals are not needed to be added and stirred during rice seed soaking, rice seeds can be directly sown without accelerating germination after rice seed soaking and germination acceleration, bed soil is not needed to be sterilized, disease preventing chemicals are not needed to be sprayed at a seedling stage, and the existing problem that rice seedling diseases and pesticide hazards frequently occur because pesticides are disorderly used in a large scale during production, the operation is cockamamie to conduct and the operation quality is poor is solved.
Description
Technical field
The present invention relates to the seed treatment field, more specifically relate to a kind of dressing agent for rice.
Background technology
Damping off and bakanae disease are the Major Diseases of rice seedling.Damping off is mainly because of low temperature how due to wet, the many factors such as the temperature difference is large, soil meta-alkali, the not enough seeding quantity of illumination is excessive, rice shoot is thin and delicate.Rice seedling blight can be divided into two types on the cause of disease, and the one, the fungoid damping off, the 2nd, the physiological damping off also claims bacterial wilt.
(1) the fungoid damping off is the infectious disease that is caused by fungi harm, because seed or bed soil disinfection are not thorough, makes a soil or seed-borne fungi, the in addition bad and miscarriage of the growing environment of seedling causes seedling growth unhealthy and strong, and premunition weakens, germ is taken advantage of a weak point in opponent's defence and invades, and causes morbidity.
(2) the physiological damping off also claims bacterial wilt, because bad external environmental condition and control measures are improper, make the excessive growth of seedling cauline leaf, root system development is bad, Water Physiology imbalance after the ventilation hardening, root water uptake does not satisfy the rising requirement that needs water of blade, makes the serious dehydration of blade, the physiological disturbance that causes.
Fungoid and physiological damping off often occur on producing simultaneously.Physiological is stood the withered rear base portion without putrefaction of withered rice shoot, can uproop not fracture; The fungoid damping off is given birth to hygrophanous brown point at rice shoot base portion fecund, enlarges later on and rots, and grow pink or white mould layer at rice shoot base portion and surrounding soil, fractures from base portion when lifting seedlings.
The control of fungoid damping off
The one, with medicament is processed seed and the seedling plate is carried out disinfection before the sowing: seed rice will be basked seeds first and choose seeds then with medicament sterilization as last disinfecting; Every square metre was watered the 3-5 kilogram with transplanting clever 1-2 milliliter when seedling plank bed soil disinfection was seedling, can be dissolved in base fertilizer together in the water during use, stir, then medicament evenly be watered on bed soil, broadcast seed and blinding, perhaps add water 3-5 kilogram with 50% fenaminosulf, 2 grams and pour prior to seeding the seedling bed; Prevent and treat with transplanting the spraying of spirit or fenaminosulf again in rice shoot 1-2 leaf phase or their early stage.
The control of physiological damping off
Must take comprehensive preventive health measures, one will reduce seeding quantity, every square metre of seeding in nursery bed 250～300g.Two will take the big-and-middle canopy of high platform to grow seedlings, and 50cm above ground level is wanted in the seedbed, reduce bed soil moisture, improve the temperature of bed soil.Three will grow seedlings in the saline land time, and the seedbed will arrange separation layer, with covering 2～3cm Nutrition Soil on the special-purpose woven cloth of paddy rice or the punching plastic sheeting for farm use, prevents that the accumulation of salt in the surface soil from can improve ground temperature again.Four will strictly control the nursery stage temperature, and day temperature should be controlled at 20～28 ℃, and be 10～15 ℃ night.Five want seedling bed regulating acid, for seedling growth is created optimum PH, the native PH value of bed are controlled at 415～515.Growing seedlings on the basis of prior to seeding acid adjustment in the saline land, also should carry out the acid adjustment in seedling stage, waters 500 times of sulfuric acid water in the 115 leaf phases of paddy rice, prevents the accumulation of salt in the surface soil.Six will carry out foliar spray with " root-inducing powder " liquid at the bacterial wilt their early stage, promote the fast root of hair of paddy rice, multiple, prevent that damping off from occuring and spread.
Bakanae disease of riceClaim again excessive growth sick, sick grain is broadcast rear often the germination and maybe can not be unearthed.The disease of falling ill seedling stage seedling is thinner and taller than strong seedling, and the blade leaf sheath is elongated, and the leaf look yellowish, and root system development is bad, and the sick seedling of part is dead before transplanting.At withered seedling light red or white mould powder, the i.e. conidium of pathogen are arranged.Honda morbidity internode obviously extends, and joint section often has bending to be exposed to outside the leaf sheath, and stipes contrary living most adventitious fiber roots in bottom are tillered and tillered less or not.The strip off leaf sheath has dun streak on the stem stalk, cut the visible white spider's thread shape mycelia of disease stem open, and later plant is withered gradually.During high humidity, withered diseased plant surface covers with filbert or white powder mustiness thing, and it is the germ softgel shell that the later stage is given birth to the black point.Sick light ahead of time heading, fringe shape is little and unreal.Heading stage, grain also can be injured, and serious browning can not be solid, and it is mould that clever shell crevice place is given birth to pale red, and disease is reveal any symptoms not gently, but inner existing mycelia hides.
Infected seed and sick straw are this pathogenetic primary source of infection.Conidium during seed soaking on the infected seed pollutes disease-free seed and infects.The key of bakanae disease control is to do seed disinfection well.Soaked seed 5～7 days under 10～15 ℃ of room temperature conditions with disliking 200 times of liquid of seedling spirit.Also have 400 times of liquid seed soaking of 45% ambam, the seed soaking that 50% Emiaodi is 250 times, 45% " 901 " 500 times of liquid seed soaking, 20% press down two 200～250 times of liquid seed soaking of seedling, 200～250 times of seed soaking of 20% bronopol etc.
In a word, the result of study of controlling about damping off, bakanae disease both at home and abroad at present mainly is to adopt the method for chemical control, traditional bakanae disease of rice, the control of damping off, usually adopt medicament seed soaking, bed soil disinfection, acid adjustment and spray the measures such as medicine seedling stage, complex operation, labour intensity is large, and control efficiency is poor; Present existing dressing agent for rice comes off easily at immersion process Chinese medicinal film, and the poor and medicament of drug effect runs off and on the contrary the farmland polluted, and affects rice seed germination.Therefore, research and develop the kind clothing agent that a kind of medicine film difficult drop-off can improve again rice seedling diseases such as preventing and treating damping off, malignant disease disease, to cultivating strong seedling, promoting that Rice Production has great importance.
Summary of the invention
The present invention provides the dressing agent for rice of a kind of efficient, safety, saving of labor, easy operating in order to address the above problem.
The composition of raw materials of described dressing agent for rice comprises following component: count by weight, 0.2～0.3 part of Tebuconazole, dispersant 1-2 part, film forming agent 5-7 part, thickener 0.4-0.6 part, antifreezing agent 2-4 part, warning colouration 1-3 part, defoamer 0.5-1 part, water 80-90 part, pH=6-7.
Described defoamer is Tween 80, linseed oil or emulsification mineral.
Described dispersant is rope uncle SOPA, calcium dodecyl benzene sulfonate or sodium butylnaphthalenesulfonate.
Described warning colouration is rhodamine toner.
Described film forming agent is sodium alginate or polyvinyl alcohol.
Described thickener is for having xanthans or hydroxyethylcellulose.
Described antifreezing agent is ethylene glycol or glycerine.
Described pH adjusting agent is citric acid or sodium hydrogen phosphate.
Use the technological process of dressing agent for rice dressing to be: selected seed rice, seed dressing and coating, medicine film solidify, static state is soaked seed, vernalization is sowed or not vernalization is directly sowed.
Seedling-protection dressing agent for rice of the present invention has that filming performance is good, lasting period length, good drug efficacy, efficacy stability, to rice safety, easy to use, simplify the characteristics such as agronomy operation, rice seed soaking again adding medicine, need not stir, sowing also can directly be sowed without vernalization behind the presoaking and germinating, bed soil need not be sterilized, need not spray the diseases prevention medicament seedling stage, having solved in the present production uses many, random, assorted because of agricultural chemicals, complex operation, operation quality is poor, the problem that causes rice shoot disease, poisoning often seriously to occur.
Embodiment
Be most preferred embodiment of the present invention below, further describe the present invention, but the present invention be not limited only to this.
Embodiment 1: most preferred embodiment
A kind of dressing agent for rice, preparation method is after Original Tebuconazole and Tween 80, SOPA, rhodamine toner, sodium alginate or polyvinyl alcohol, hydroxyethylcellulose, glycerine and water are mixed by 0.25%, 0.6%, 1.2%, 2%, 6%, 0.5%, 3% and 86.45% part by weight, add the sand mill sand milling, use at last lemon acid for adjusting pH to 6～7, then liquid is separated to get sample with abrasive media.
Use the technological process of dressing agent for rice dressing to be: selected seed rice, seed dressing and coating, medicine film solidify.
Result of use:
Getting the water of the capsuled seed adding 12.5mL of 10g soaks seed.Measure respectively two parts of capsuled seed effective component contents of (glacial acetic acid extraction) before and after the immersion by high performance liquid chromatography, check product coating immersion expulsion rate, the present invention plants clothing agent dressing expulsion rate＜5% that soaks after measured.
2010, in Heilongjiang Province's friendship, Hongqiling Farm experiment station, seed (96-98%, 88-89%, 83%) the application the present invention who has carried out 3 magnitude germination rates planted the test of clothing agent dressing.The result shows, after seed application the present invention of different germination rates plants clothing agent dressing in the 83-98% scope, and percentage of seedgermination and capsuled seed germination rate no significant difference not, its conclusion is also verified in production application.It is good to illustrate that the present invention plants clothing agent filming performance, and pharmacy security all can be used the present invention and plants the clothing agent for producing the upper elite seed (germination rate is more than 85%) that allows to use.
On November 26th, 2006, Institute of Plant Protection, academy of agricultural sciences, Liaoning Province carries out the test of seedling-protection kind clothing agent control rice seedling blight on Agricultural University Of Shenyang rice test ground, and the result is as shown in table 1.
Table 1 0.25% Tebuconazole suspension seed-coating agent control rice seedling blight result of the test (in May, 2006)
Annotate: use the poor preventive effect significance of difference of carrying out of Deng Kenshi multipole and test, a, b represent respectively the size of the significance of difference, obtain first minimum significantly extreme difference L.S.R.0.05, it is the significance of difference 5%, average anti-heterodyne is less than the alphabetical a of putting on of the remarkable extreme difference of minimum, show that difference is not remarkable, on average anti-heterodyne shows significant difference greater than the alphabetical b of putting on of the remarkable extreme difference of minimum.
The best using dosage of 0.25% Tebuconazole suspension seed-coating agent is 25 milliliters/kilogram, and rice safety without poisoning, is had no impact to the biology of test region.
Show according to field, ground demonstration results such as three provinces in the northeast of China, Hebei province and Ningxia Hui Autonomous Region: 0. 25% Tebuconazole suspension seed-coating agent carries out seed pelleting control rice seedling blight, bakanae disease with the dosage of 25ml/kg seed, preventive effect is at 79.04-100.0%, and the lasting period is long.0.25% Tebuconazole suspension seed-coating agent shows safety without poisoning to paddy rice.Recommendation 0.25% Tebuconazole suspension seed-coating agent carries out seed pelleting control rice seedling blight, bakanae disease take the dosage of 25.0ml/kg seed (being that pesticide-seeds ratio is as 1:50) in the production.
Claims (8)
1. dressing agent for rice, it is characterized in that: the composition of raw materials of described dressing agent for rice comprises following component: count by weight, 0.2～0.3 part of Tebuconazole, dispersant 1-2 part, film forming agent 5-7 part, thickener 0.4-0.6 part, antifreezing agent 2-4 part, warning colouration 1-3 part, defoamer 0.5-1 part, water 80-90 part, pH=6-7.
2. dressing agent for rice according to claim 1, it is characterized in that: described defoamer is Tween 80, linseed oil or emulsification mineral.
3. dressing agent for rice according to claim 1 is characterized in that: described dispersant is rope uncle SOPA, calcium dodecyl benzene sulfonate or sodium butylnaphthalenesulfonate.
4. dressing agent for rice according to claim 1, it is characterized in that: described warning colouration is rhodamine toner.
5. dressing agent for rice according to claim 1, it is characterized in that: described film forming agent is sodium alginate or polyvinyl alcohol.
6. dressing agent for rice according to claim 1, it is characterized in that: described thickener is for having xanthans or hydroxyethylcellulose.
7. dressing agent for rice according to claim 1, it is characterized in that: described antifreezing agent is ethylene glycol or glycerine.
8. dressing agent for rice according to claim 1, it is characterized in that: described pH adjusting agent is citric acid or sodium hydrogen phosphate.
Priority Applications (1)
| Application Number | Priority Date | Filing Date | Title |
|---|---|---|---|
| CN201210372607.3A CN102845432B (en) | 2012-09-29 | 2012-09-29 | Rice seed coating agent |
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| CN201210372607.3A CN102845432B (en) | 2012-09-29 | 2012-09-29 | Rice seed coating agent |
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| CN102845432B CN102845432B (en) | 2014-07-30 |
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Cited By (5)
| Publication number | Priority date | Publication date | Assignee | Title |
|---|---|---|---|---|
| CN103053244A (en) * | 2013-01-16 | 2013-04-24 | 南京农业大学 | Crop seed coating agent prepared from novel biomass carbon of agricultural wastes and preparation method of coating agent |
| CN105613513A (en) * | 2014-11-19 | 2016-06-01 | 江苏维尤纳特精细化工有限公司 | Tebuconazole suspension concentrate for seed dressing and preparation method thereof |
| CN105875829A (en) * | 2016-04-18 | 2016-08-24 | 合肥市农泰农业科技有限公司 | Ultraviolet radiation preventing storage promoting paddy rice seed membrane coating liquid |
| CN105940903A (en) * | 2016-05-05 | 2016-09-21 | 湄潭县宫廷香米业有限责任公司 | Method for planting red rice |
| CN112425477A (en) * | 2020-11-17 | 2021-03-02 | 吉林省农业科学院 | Rice seedling raising bed soil, application and seedling raising method |
Citations (2)
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| CN101133735A (en) * | 2007-08-19 | 2008-03-05 | 张强 | Suspending seed coating containing tebuconazole and method for preparing the same |
| WO2008061654A1 (en) * | 2006-11-24 | 2008-05-29 | Bayer Cropscience Ag | Fungicidal active agent combination |
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2012
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| Publication number | Priority date | Publication date | Assignee | Title |
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| WO2008061654A1 (en) * | 2006-11-24 | 2008-05-29 | Bayer Cropscience Ag | Fungicidal active agent combination |
| CN101133735A (en) * | 2007-08-19 | 2008-03-05 | 张强 | Suspending seed coating containing tebuconazole and method for preparing the same |
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| 刘步林: "《农药剂型加工技术》", 31 October 1998, 化学工业出版社 * |
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Cited By (7)
| Publication number | Priority date | Publication date | Assignee | Title |
|---|---|---|---|---|
| CN103053244A (en) * | 2013-01-16 | 2013-04-24 | 南京农业大学 | Crop seed coating agent prepared from novel biomass carbon of agricultural wastes and preparation method of coating agent |
| CN103053244B (en) * | 2013-01-16 | 2014-12-10 | 南京农业大学 | Crop seed coating agent prepared from novel biomass carbon of agricultural wastes and preparation method of coating agent |
| CN105613513A (en) * | 2014-11-19 | 2016-06-01 | 江苏维尤纳特精细化工有限公司 | Tebuconazole suspension concentrate for seed dressing and preparation method thereof |
| CN105613513B (en) * | 2014-11-19 | 2018-05-18 | 江苏维尤纳特精细化工有限公司 | A kind of Tebuconazole suspension seed-coating agent and preparation method thereof |
| CN105875829A (en) * | 2016-04-18 | 2016-08-24 | 合肥市农泰农业科技有限公司 | Ultraviolet radiation preventing storage promoting paddy rice seed membrane coating liquid |
| CN105940903A (en) * | 2016-05-05 | 2016-09-21 | 湄潭县宫廷香米业有限责任公司 | Method for planting red rice |
| CN112425477A (en) * | 2020-11-17 | 2021-03-02 | 吉林省农业科学院 | Rice seedling raising bed soil, application and seedling raising method |
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| CN102845432B (en) | 2014-07-30 |
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