CN102326555B - Paddy rice seed soaking agent and application thereof - Google Patents
Paddy rice seed soaking agent and application thereof Download PDFInfo
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Abstract
The invention discloses a paddy rice seed soaking agent and application thereof. The paddy rice seed soaking agent mainly comprises a safener and a plant growth regulator, wherein the safener is femclorim; and the plant growth regulator is one or more of indolebutyric acid, naphthylacetic acid and brassinolide. Moreover, other aids such as a carboxylate dispersing agent, a polyether-modified high molecular wetting agent, xanthan gum, an antifreezing agent, a defoaming agent and the like. The paddy rice seed soaking agent has high safety, and is suitable for seed soaking of manual direct seeding, mechanical direct seeding, direct seeding on dry paddy fields and direct sowing in flooded paddy fields; by adopting the paddy rice seed soaking agent, the pesticide damage of pretilachlor to paddy rice can be reduced remarkably, the growth of rice roots can be facilitated simultaneously, and the quality of paddy rice seedlings is enhanced; and meanwhile, compared with spraying after seeding of paddy rice, the seed soaking agent has the advantages of small using amount and low cost.
Description
Technical field
The present invention relates to a kind of paddy rice seed soaking agent and application thereof of live paddy field special use.
Background technology
The rice direct-seeding technology enjoys peasant's welcome because having the advantage that reduces labour intensity and save production cost.According to incompletely statistics, the area of the current Direct-seeding Rice of China has surpassed 2,000,000 ha(hectares).Make the rule of technology with industrialization and marketing development according to external rice, taking live is one of the important directions of China's rice cropping from now on.The developed countries such as America and Europe and Australia are after 20 century 70s, and under the drive of industrialization and urbanization, Rice Cropping almost all adopts live mode.At present, China's direct seading rice area also increases year by year.Can predict, along with the raising of China's Rice Production large-scale degree and the variation of rural laborer's structure, one of live Main Cultivation mode that will become China paddy rice.
Along with the popularization of rice direct-seeding technology, soil is ploughed number of times and is obviously reduced, and ploughing depth is also more and more shallow, makes to drop in the procreation of can surviving of a small amount of Weedy Rice seed in field.Direct sowing rice field provides same control environment to conventional japonica rice and Weedy Rice, and the emergence rate of Weedy Rice and survival rate are improved greatly, makes the outburst of Weedy Rice large tracts of land.In China, province (autonomous region, the municipality directly under the Central Government) rice fields such as Heilungkiang, Jilin, Liaoning, the Inner Mongol, Hebei, Jiangsu, Anhui, Zhejiang, Hubei, Hunan, Jiangxi, Guangdong, Guangxi, Yunnan, Sichuan and Chongqing all have Weedy Rice to occur.According to statistics, the loss that one of the living rice of the Jin of China Heilongjiang Province Lv descends and causes because of quality, at least 3 hundred million ~ 400,000,000 yuans of every year.Leizhou City, Guangdong nineteen ninety is found direct sowing rice field generation Weedy Rice, and the south in 1995 ~ 1999 Nan Xing towns, Nian Gai city, the towns such as Song Zhu, the Yang Jia littoral rice district large tracts of land of crossing a river occurs. area occurs reach 0.8 ten thousand hm
2, the general serious underproduction 70% ~ 80% of the underproduction 20% ~ 30%., indivedual fields are lost and are received.
Due on the Weedy Rice form with all more similar with cultivated rice on physiology, limited the validity of selective chemical weed killer herbicide, further deepened the harm of Weedy Rice.The third careless amine is chloroacetanilide herbicides, suppresses weed growth by the synthetic of impede protein matter, and photosynthesis and respiration are had to remote-effects.It has good preventive effect to Weedy Rice, but rice seedling is had to very large poisoning simultaneously.There is now utilization to sweep Fluorene spy (Soft, the third careless amine+antipoison CGA12307) and carry out the controlling weeds rice, although this has improved the safety of rice seedling to the third careless amine, because Weedy Rice has also absorbed antipoison, make its preventive effect only have 50% left and right.
Be directed to the problem of the third careless amine to Security of rice, Cao Yongsong etc. (number of patent application: 96118409.4) and Huang Xiangyou etc. 200710068374.7) etc. (number of patent application: more than ten patent has and relates to.Although above-mentioned patent can improve the safety of rice seedling to the third careless amine, for the controlling weeds rice, improved the drug resistance of Weedy Rice to the third careless amine simultaneously, make control efficiency greatly reduce.Have not yet to see and can improve the direct seading rice seed soaking agent of rice seedling to the safety of the third careless amine specially.
Summary of the invention
The object of the invention is to, for above-mentioned deficiency of the prior art, provides a kind of paddy rice seed soaking agent.
Another object of the present invention is to provide the using method of this seed soaking agent.
The present invention is achieved through the following technical solutions above-mentioned purpose:
A kind of paddy rice seed soaking agent, mainly be comprised of safener and plant growth regulator, and wherein safener is fenclorim (the chloro-2-phenyl pyrimidine of 4,6-bis-); Plant growth regulator be indolebutyric acid (the 3-indole butyric acid, IBA), methyl α-naphthyl acetate (the 1-naphthyl acetic acid, NAA) and brassin lactones (2a, 3a, 22s, 23s-tetrahydroxy-24R-ethyl-β-Gao-7-oxa--5a-courage steroid-6-ketone, one or more in BR).
Rice seedling is that the third careless amine is chloroacetanilide herbicides to the responsive vulnerable main cause of the third careless amine, suppresses weed growth by the synthetic of impede protein matter, and photosynthesis and respiration are had to remote-effects.The primary leaf that it can make rice seedling is not unearthed or stretches out from the bud scale side, and distortion can not normal extension, and the leaf look deepens green, grows and stops, until dead.If poisoning is lighter, the growth due to the third careless amine energy strong inhibition root, can cause the rice seedling root system undeveloped, and Seedling Quality is low, greatly has influence on later stage output.Therefore, the present invention, by the seed soaking of the medicament before live, improves the resistivity of rice paddy seed to the third careless amine, adds the quality that plant growth substance improves rice seedling in seed-soaking liquid simultaneously.And to reach this target, must be from selecting suitable paddy rice Special safety agent and plant growth regulator aspects.Through experiment, find, above-mentioned safener and plant growth regulator all are applicable to the seed of direct seading rice.
In order to reach better drug effect, in above-mentioned paddy rice seed soaking agent, can also add other auxiliary agents as metal carboxylate dispersant (as GY-DS02), polyether-modified high score subclass wetting agent (as WS03), xanthans, antifreezing agent, defoamer (as GE630) etc.The composite product that described metal carboxylate dispersant dispersant is non ionic polymer polymer and anion low polymer; Described polyether-modified high score subclass wetting agent is short chain EO/PO block polyether; Described antifreezing agent is preferably urea; Described defoamer is preferably the import silicone defoaming agent.Above-mentioned auxiliary agent is commercial goods.
In above-mentioned seed soaking agent, the concentration of safener is preferably 100 ~ 300g/L, and the concentration of plant growth regulator is preferably 10 ~ 100g/L.
The preferred fenclorim of safener, the preferred indolebutyric acid of plant growth regulator (IBA), decapacitation promotes the growth of Direct-seeding Rice seedlings root, can also improve its water absorbing capacity, reaches the purpose of " strong root strong sprout ".
The using method of paddy rice seed soaking agent of the present invention, be before rice growing, with the rice paddy seed that reaches the sign that germinates after Steeping and budding after described paddy rice seed soaking agent thin up, more than 1 hour, take 2 hours as best, and then sowing.
In above-mentioned using method, the concentration after the seed soaking agent thin up is preferably 0.33g/L.
Compared with prior art, the present invention has following beneficial effect:
(1) to rice safety, sweep Fluorene spy and compare with spraying, reduced significantly the poisoning of the third careless amine to paddy rice.
(2) owing to having added plant growth regulator, can greatly promote the growth of rice root, improved rice seedling quality.
(3) seed soaking agent of the present invention not only is applicable to manual lively, also is applicable to that machinery is live, the seed-soaking of direct-sowing dry and water direct seeding.
(4) compare with spraying after paddy rice is broadcast, seed soaking agent consumption of the present invention is few, and cost is low.
Embodiment
Paddy rice seed soaking agent composition of the present invention is illustrated with following several formulations, but protection scope of the present invention is not limited to this.In embodiment, " part " means " weight portion ", and except doing specified otherwise, other are this area normal experiment reagent and method.
embodiment 1
30 parts of fenclorims, 3 parts of indolebutyric acids, 3 parts of DS02,1 part of WS03,3 parts of antifreezing agents, 0.3 part of defoamer, the xanthans of 4 part 4%, obtain suspending agent after 55.7 parts of water mix.Wherein DS02, WS03, antifreezing agent, defoamer are the production of Beijing Guang Yuan benefit agriculture chemistry Co., Ltd.
embodiment 2
20 parts of fenclorims, 3 parts of indolebutyric acids, 10 parts of cosolvents, 8.1 part GY-ZJ15,1 part of GY-E2,0.9 part of agriculture breast 500(Tianjin Tian Chuan chemical industry Co., Ltd produces), after mixing, 56.5 parts of dimethylbenzene (Guangzhou Milky Way essence section's glass instrument wholesale department produces) obtain missible oil.Wherein cosolvent, GY-ZJ15 and GY-E2 are the production of Beijing Guang Yuan benefit agriculture chemistry Co., Ltd.
embodiment 3
10 parts of fenclorims, 1 part of methyl α-naphthyl acetate, 8.1 parts of Tween-20s, 80.9 parts of acetone mix, and obtain seed soaking agent.Tween-20 and acetone all are purchased from Milky Way essence section's glass instrument wholesale department, Guangzhou.
embodiment 4
10 parts of fenclorims, 0.5 part of study on brassinolide, 8.1 parts of Tween-20s, 81.4 parts of acetone mix, and obtain seed soaking agent.Tween-20 and acetone all are purchased from Milky Way essence section's glass instrument wholesale department, Guangzhou.
embodiment 5
(1) application experiment-laboratory test of the paddy rice seed soaking agent that embodiment 1 makes:
1. seed soaking
Rice paddy seed is first carried out to Seed soaking, take out after 24 hours, carry out the vernalization processing, take out until rice paddy seed reaches while germinateing sign.
Before the seed soaking agent dilution, medicament is shaken up, according to rice growing amount (according to local rice varieties definite seeding quantity), accurately measure, seed soaking agent is poured in container, with clear water, by seed soaking agent dilution, be concentration for the treatment of, then the rice paddy seed that will reach the vernalization sign is put into to process in liquid and is carried out seed soaking.Concrete amount of liquid medicine determines according to sowing quantity, and amount of liquid medicine is flooded seed and is advisable.Soak seed and can take out sowing after 2 hours.
2. test implementation process
Laboratory test is year December in October, 2009 to 2009, carries out agricultural college of Agricultural University Of South China weeds Laboratory Temperature is indoor.Experimental cultivar is Direct-seeding Rice of special excellent boat (the hybrid rice super hybridization rice of spread).
Laboratory test is made as 5 chemicals treatment groups and 2 control treatment by the working concentration of medicament, amounts to 7 processing (1: blank; 2: negative control; 3:2.67g/l; 4:1.33g/l; 5:0.67g/l; 6:0.33g/l; 7:0.17g/l wherein 3 ~ 7 is concentration after the seed soaking agent dilute with water), each is processed 4 times and repeats.Seed is according to the seed soaking of step 1 seed soaking process, and blank and negative control are processed and all used Seed soaking, and seed soaking evenly is sown into seed (Φ=10cm h=12cm) in the plastic cup that the thick field soil of 8cm is housed after 2 hours, sows 10 for every glass.Keep soil moisture regime (upper soll layer no water layer, but keep soil moisture), rice direct-seeding rice after planting 2d (is pricked under the rice root, the rice bud erects), the auspicious spy of flying (50% the third careless amine) is unified adopts compression spray tower 3WT-II type (the full madder of Beijing flower bud receive loop technique Development Co., Ltd produce) droplet spraying, the about 40mm of fogdrop diameter, the about 2bar of pressure during work, liquid spraying quantity 450L/hm
2, blank sprays the equivalent clear water.
After laboratory test spray medicine, 7d measures the emergence rate of paddy rice, and after the spray medicine, 7d, 15d, 30d measure the plant height of paddy rice, and after the spray medicine, 30d measures the data such as the overground part fresh weight of paddy rice and underground part fresh weight.
Result of the test is as shown in table 1.
Table 1 laboratory test Security of rice investigation result
Annotate: 1: blank; 2: negative control; 3:2.67g/L; 4:1.33g/L; 5:0.67g/L; 6:0.33g/L; 7:0.17g/L.
Different lowercases representatives have significant difference P<0.05, and table 2, table 3 are together.
Seed soaking agent treated water rice on emergence rate, plant height, fresh weight apparently higher than negative control, and close to blank.This illustrates that this seed soaking agent can reduce the poisoning of the third careless amine to paddy rice effectively, improves the safety of rice seedling.From under ground portion fresh weight aspect, owing to having added IBA, make the paddy rice of processing obviously good than blank in this respect, and there is no the rice seedling under ground portion fresh weight of soaking seed with this medicament than few 80% left and right of blank.Show that seed soaking agent of the present invention can promote Root Growth of Rice, has improved rice seedling quality greatly.
(2) application experiment-field experiment of the paddy rice seed soaking agent that embodiment 1 makes:
Field experiment, year November in March, 2010 to 2010, is carried out in proving ground, Agricultural University Of South China Zengcheng, GAP (GAP), and experimental cultivar is Direct-seeding Rice of special excellent boat (the hybrid rice super hybridization rice of spread).Field experiment divided for two seasons carried out, and when before rice growing, vernalization indicates to germinateing, by effective dose, was 0.33g
/the paddy rice seed soaking agent liquid immersion treatment that the embodiment 1 of L makes 2 hours, during immersion with liquid just the immersion water rice be advisable, per hectare rice paddy seed 30kg.Test for the first time in sowing on March 23rd, 2010, broadcast rear 2d spray processed group medicine, establish altogether 3 processed group: 8: the clear water contrast; 9:450g, ai/hm
2auspiciously fly the spy; 10:900g, ai/hm
2auspiciously fly the spy, 3 repetitions, community area 20m are established in each processing
2.
Test for the second time in sowing on August 10th, 2010, broadcast rear 2d spray processed group medicine, establish altogether 7 processed group: 11: clear water; 12:450g, ai/hm
2auspiciously fly the spy; 13:675g, ai/hm
2auspiciously fly the spy; 14:900g, ai/hm
2auspiciously fly the spy; 15:675g, ai/hm
2sweep Fluorene spy, wherein the 15 community rice paddy seeds of processing are processed without vernalization.3 repetitions, community area 10 m are established in each processing
2.The astronomical 3WD-16 knapsack electric sprayer that uses Zhejiang Province, China Taizhou to produce, Fan spray head, application method is directed spraying, water consumption 450 L/hm
2.
The plant height of 15d, 30d investigation paddy rice after the field trial medicine, planting percent, measure every cell production during results.
Adopt SAS software kit PROC GLM order, by the new multipole of Deng Kenshi poor (DMRT) method, test data is carried out to statistical analysis.
Result of the test
As shown in table 2, table 3, the rice paddy seed while germinateing sign sprays the auspicious spy of flying (50% the third careless amine) after seed soaking agent of the present invention is processed again, and the safety of paddy rice obviously improves, and the plant height inhibiting rate of each chemicals treatment district paddy rice is all lower than 8.52%.Along with the increase of the application concentration of the third careless amine, the plant height inhibiting rate of paddy rice increases, and output also descends to some extent.By process 13 groups with the contrast of 15 groups, find to soak seed with the present invention rear than with sweeping the safety that Fluorene spy has improved rice seedling significantly.Owing to also containing growth regulator IBA in the present invention, greatly improved the root growth of rice seedling, the output that guarantees paddy rice is had to great effect.
Table 2 is field trial Security of rice investigation result for the first time
| Process | 15d plant height inhibiting rate (%) after medicine | 30d plant height inhibiting rate (%) after medicine | Hectare output (kg) |
| 8 | 0.00 | 0.00 | 6150.45±106.20a |
| 9 | 5.80±1.68a | 6.90±1.17a | 5179.26±100.07a |
| 10 | 8.52±1.02a | 7.26±1.54a | 4959.15±91.90a |
Annotate: 8: clear water; 9: seed soaking agent+450g, ai/hm
2auspiciously fly the spy; 10: seed soaking agent+900 g, ai/hm
2auspiciously fly the spy
Table 3 is field trial Security of rice investigation result for the second time
| Process | 15d plant height inhibiting rate (%) after medicine | 30d plant height inhibiting rate (%) after medicine | Paddy rice planting percent (%) | Hectare output (kg) |
| 11 | 0.00 | 0.00 | 69.45±2.05a | 6068.45±60.56a |
| 12 | 3.84±1.03b | 3.31±0.41b | 58.67±1.85a | 5315.16±59.65a |
| 13 | 5.15±0.55b | 5.97±2.15b | 57.33±2.52a | 5127.56±33.12a |
| 14 | 6.09±0.85b | 6.04±1.55b | 64.67±0.95a | 5169.25±65.00a |
| 15 | 6.31±0.65b | 3.72±0.11b | 58.00±1.88a | 3543.44±68.75b |
Annotate: 11: clear water; 12: seed soaking agent+450g, ai/hm
2auspiciously fly the spy; 13: seed soaking agent+675g, ai/hm
2auspiciously fly the spy; 14: seed soaking agent+900g, ai/hm
2auspiciously fly the spy; 15:675g, ai/hm
2sweep Fluorene spy.
embodiment 6
The application experiment of the paddy rice seed soaking agent that embodiment 3 makes
Experimental technique step and seed soaking agent consumption are with embodiment 5, and result is similar to embodiment 5 result of the tests, and each chemicals treatment district Plant Height of Rice inhibiting rate is all lower than 8%.In the opposing herbicide pretilachlor, the rice seedling safety significantly improves, and obviously be better than with sweeping Fluorene spy, and the rice seedling root growth in order, and hectare output is more than 5000kg.
embodiment 7
The application experiment of the paddy rice seed soaking agent that embodiment 4 makes
Experimental technique step and seed soaking agent consumption are with embodiment 5, and result is similar to embodiment 5 result of the tests, and each chemicals treatment district Plant Height of Rice inhibiting rate is all lower than 9%.In the opposing herbicide pretilachlor, the rice seedling safety significantly improves, and obviously be better than with sweeping Fluorene spy, and the rice seedling root growth in order, and hectare output is more than 5000kg.
Claims (6)
1. a paddy rice seed soaking agent, is characterized in that mainly safener and plant growth regulator, consisting of, and wherein safener is fenclorim; Plant growth regulator is one or more in indolebutyric acid, methyl α-naphthyl acetate and study on brassinolide; The concentration of safener is 100 ~ 300g/L; The concentration of plant growth regulator is 10 ~ 100g/L.
2. paddy rice seed soaking agent according to claim 1, characterized by further comprising other auxiliary agents, and described other auxiliary agents are one or more in metal carboxylate dispersant, polyether-modified high score subclass wetting agent, xanthans, antifreezing agent and defoamer.
3. paddy rice seed soaking agent according to claim 1, is characterized in that described safener is fenclorim, and plant growth regulator is indolebutyric acid.
4. the using method of the described paddy rice seed soaking agent of claim 1 ~ 3 any one, it is characterized in that before rice growing, with the rice paddy seed that reaches the sign that germinates after Steeping and budding after described paddy rice seed soaking agent thin up more than 1 hour, and then sowing.
5. the using method of paddy rice seed soaking agent according to claim 4, is characterized in that the concentration after the paddy rice seed soaking agent thin up is 0.33g/L.
6. the using method of paddy rice seed soaking agent according to claim 4, the time that it is characterized in that after Steeping and budding reaching the rice paddy seed of the sign that germinates is 2 hours.
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| CN102626083A (en) * | 2012-03-22 | 2012-08-08 | 中国水稻研究所 | Herbicide resistant regulator for safe growth of rice |
| CN102786360B (en) * | 2012-09-10 | 2014-05-07 | 黎永荣 | Rice yield increasing soaking agent and application method thereof |
| CN102992881A (en) * | 2012-10-24 | 2013-03-27 | 汪洋 | Rice seed soaking agent |
| CN103907495A (en) * | 2014-04-23 | 2014-07-09 | 南京农业大学 | Technique for utilizing pretilachlor to prevent and remove weedy rice in water-direct-seeding rice field |
| CN104094810B (en) * | 2014-07-16 | 2016-03-30 | 和县宝兰蔬菜种植有限公司 | The implantation methods of non-pollution rice |
| CN105218231B (en) * | 2015-09-24 | 2018-08-03 | 合肥工业大学 | A kind of organic carbon nutrition seed soaking seed dressing and its application method |
| CN105191959B (en) * | 2015-10-15 | 2017-07-21 | 北京中农益田化工有限公司 | A kind of suspending agent of pyraclostrobin-containing and Difenoconazole and preparation method thereof |
| CN105494340A (en) * | 2015-12-02 | 2016-04-20 | 南京农业大学 | Technology for controlling and removing Oryza sativa f. spontanea from dry direct-seeding paddy field by adopting synergy of fenclorim seed dressing agent and pretilachlor |
| CN106035424A (en) * | 2016-05-24 | 2016-10-26 | 郎溪县飞鲤镇杨静粮食种植家庭农场 | Rice germination accelerating chemical and seed dressing method thereof |
| CN106818883A (en) * | 2016-12-15 | 2017-06-13 | 东莞市联洲知识产权运营管理有限公司 | The compounding suspension emulsion and preparation method of a kind of herbicide and plant growth regulator |
| CN108124906B (en) * | 2017-12-21 | 2019-11-15 | 中国水稻研究所 | A kind of paddy rice seed soaking agent |
| KR20220069064A (en) * | 2019-09-27 | 2022-05-26 | 더 보드 오브 트러스티스 오브 더 유니버시티 오브 아칸소 | Mitigation of rice to group 15 herbicides |
| CN113575609A (en) * | 2020-05-01 | 2021-11-02 | 江西鑫邦生化有限公司 | Rice seed treating agent containing brassinolide and silatrane |
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| CN102150657B (en) * | 2011-03-02 | 2013-04-10 | 中国水稻研究所 | Rice mechanical transplanted plate seedling raising and rooting agent and application methods thereof |
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