CN101669516B - Ratooning rice special production-increase regulator, preparation method therefor and application thereof - Google Patents
Ratooning rice special production-increase regulator, preparation method therefor and application thereof Download PDFInfo
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Abstract
The invention relates to a ratooning rice special production-increase regulator, a preparation method therefor and an application thereof. The regulator contains the following components by weight percent: 21.4-25.6% of plant growth regulator, 0.3-0.6% of organic acid, 6.5-6.7% of active agent and spreader and balance of water, wherein the plant growth regulator contains ethephon and compound potassium nitrophenolate; the organic acid is selected from citric acid, malic acid or succinic acid; and the active agent and the spreader are selected from one or a plurality of tween 20, tween 30, tween 40, tween 60, tween 80 and tween 85. The plant growth regulator is the multi-functional product which can improve the germination bearing tiller, the maturing rate and the thousand seed weight of the axillary buds of the low-level tillering nodes of reverse 3, reverse 4, reverse 5 and the like on the mother stems of the ratooning rice and increase the yield, and has the characteristics of no toxicity, no side effect, low cost, convenient use and the like.
Description
Technical field
The present invention relates to a kind of conditioning agent, particularly relate to a kind of Ratooning rice special and its preparation method and application.
Background technology
Paddy rice is the topmost cereal crops of China, and throughout the year sowing area is nearly 3,300 ten thousand hectares, about 200,000,000 tons of gross output, account for respectively national grain acreage 30% and total grain output about 40%, yield per unit area exceeds 45.7% than whole cereal crops mean value.Therefore, paddy rice is the cereal crops that China's cultivated area is maximum, per unit area yield is high, gross yield is maximum.
Entered since the new century, international rice market is very active, and year volume of trade is about 2,500 ten thousand tons, and importing country and area mainly are Hongkong and Macro, Japan, Korea S, the Middle East, Eastern Europe and Africa.With rice leading exporter Thailand, Vietnam etc. relatively, China has the advantages such as unit yield height, cost are low, as long as improve quality of rice, we will have very strong competitiveness.
At present, the population of China 65% is take rice as staple food, and by 2010, China's population will reach about 1,400,000,000.Along with the population growth, the grain demand amount significantly increases, according to one's analysis, by 2010, the paddy gross output should reach 2.24 hundred million tons at least, 2008, Monitoring of Paddy Rice Plant Area approximately reaches 4.3 hundred million mu, about 1.89 hundred million tons of gross output, visible rice demand space is very large, and can supply and demand balance be directly connected to the nation's security development.Therefore, strengthen the tackling of key scientific and technical problems research of the aspects such as rice high yield high-quality, abridged edition are efficient, resources, increase substantially paddy rice week yearly productive capacity, China's grain security is had extremely important guaranteeing role.
In southern rice workspace, especially plant one season the rice heat have a surplus and plant the area of double cropping rice shortage of heat, people improve all year outputs by raising the multiple-cropping index, increase cultivated area, yet, because double cropping rice photo-thermal inadequate resource, early rice yields poorly, poor quality, has had a strong impact on the quality of rice.And the plantation ratoon rice has effectively remedied this defective.Ratoon rice is to take certain cultivation technique measure, make behind season paddy rice harvesting Dormant Buds on the rice stub grow into fringe and gather in the crops one season paddy rice.Its breeding time is short, and the daily output is high, economizes kind, saving of labor, water-saving, laborsaving, province's medicine; Economical and efficient, increasing both production and income.
Aborning, the output of ratoon rice depends on every mu of number of productive ear of regeneration season paddy rice, depends on that namely season paddy rice falls 2, falls 3, falls 4 and fall the germination rate of 5 joint position resting buds (sleeping bud, regeneration bud).Studies show that (Tang Zuyin, 1991; Liao's hut Lin, 1991; Yu Weixiu, 1994; Xiong Hong, 1996; Liu Guifu, 1990; Shao Xinming, 1996), the principal element that affects the Dormant Buds rate is photosynthetic product amount and the improving activity of root system of storing in female stem.The first rice crop pustulation period is at a time when rainy season, long-term Rainy sparse sunlight, and the photosynthetic product storage capacity is few and improving activity of root system is low in female stem, usually causes regeneration bud to send out Miao Buqi, and number of productive ear reduces, yield reducation; Cause lodging such as typhoon or heavy showers, the fracture of female stem root system, aging, regeneration bud stasi, ratoon rice will have no harvest, therefore, prevent the first rice crop lodging, will increase female stem material storage capacity, the raising improving activity of root system is of crucial importance.
In order to improve the output of ratoon rice, the scientific research personnel studies discovery, enriches bud fertilizer, foliage-spray gibberellin and the basic element of cell division and all can improve output.Forefathers study discovery (Liao's hut Lin etc., 1991; Yuan Ji is superfine, and 1996; Vergara, 1996; Shi Nengpu etc., 1997), executed budding fertilizer in 15～20 days behind the neat fringe of first rice crop, namely every mu enriches 15 kilograms in urea, can improve female stem sheath dry matter weight, improves the germinating capacity of regeneration bud; Further research is found, budding fertilizer has delayed the aging rate of first rice crop anaphase blade, improved extremely photosynthetic rate of the full N content of blade, increased the ratio of leaf photosynthesis product to the input of fringe section, relatively reduced and preserved photosynthetic product in female stem to the distribution of fringe section, improve the storage capacity of photosynthetic product in female stem, be beneficial to the sprouting of regeneration bud.There are some researches show (Liu Guixing etc., 1990; Horse is equal, and 1992; Yang Wenyu etc., 1994; Zhou Ruiqing etc., 1996; Lin Shi burns, and 1998; Xiong Hong etc., 2000), 15 days foliage-spray gibberellin has not only improved first rice crop behind the Qi Sui ripening rate and thousand kernel weight, and increased the content that regeneration bud promotes parahormone growth hormone, the basic element of cell division etc., reduce the content that suppresses parahormone abscisic acid etc., broken the regeneration bud dormancy, promoted its germination and growth, promotion is fallen two joints to five Jie Xingen generation, and improves improving activity of root system.Spray the basic element of cell division, can promote regeneration bud early to give birth to, give birth to more, increase the regeneration grain number per spike, improve output (gold roc, 1994).Yet the first rice crop pustulation period, first rice crop very easily lodged at a time when by the end of June to windy rainy season in July, enrich bud fertilizer, spray gibberellin and the basic element of cell division, caused female stem lodging, axial root system fracture, death, and regeneration capacity completely loses.
In order to prevent the female stem lodging of first rice crop, people adopt paclobutrazol, uniconazole P (Shi Nengpu more, 1997) etc. the triazole type plant growth regulator carries out the field foliage-spray or cultivates strong seedling, to improve the first rice crop lodging tolerance, yet, paclobutrazol, uniconazole P in the process of falling the strong stalk of stalk, decrease the grain number per spike of first rice crop, thereby cause the significant underproduction, and remaining green when it is due to become yellow and ripe late-maturing.Therefore, this research is according to the habit of growing of ratoon rice, for the limiting factor that exists in the ratoon rice stable high yield, it is the high and easy lodging of the female stem photosynthetic product of the first rice crop amount of storing, low and the easy early ageing of the female stem photosynthetic product of the first rice crop amount of storing, improving activity of root system is high and remaining green when it is due to become yellow and ripe late-maturing, contradiction between the low and easy early ageing of improving activity of root system, from improving female stem quality, improve first rice crop fringe section filling rate, remove ahead of time first rice crop fringe section depression effect, the angle that promotes regeneration bud to sprout is set out, developed a kind of environmentally friendly Ratooning rice special, guaranteeing that the strong stalk of first rice crop is anti-fall, promote under the prerequisite of Grain Filling, improve the regeneration season Dormant Buds percentage of earbearing tiller, improve regeneration season spike of rice density, improve To yield of ratooning crop.
Summary of the invention
The purpose of this invention is to provide a kind of Ratooning rice special and its preparation method and application, with solve first rice crop kernel grouting speed and the storage of female stem material, regeneration season spike of rice is many and the contradiction of spike of rice between greatly.
The invention provides a kind of Ratooning rice special, this conditioning agent contains the component of following percentage by weight: plant growth regulator 21.4%～25.6%, organic acid 0.3%～0.6%, activating agent and spreader-sticker 6.5%～6.7%, water surplus.
Preferably, described conditioning agent contains the component of following percentage by weight: plant growth regulator 24.6%, organic acid 0.5%, activating agent and spreader-sticker 6.6%, water 68.3%.
Described plant growth regulator is ethrel and potassium para-nitrophenate; Described organic acid is selected from citric acid, malic acid or succinic acid, optimization citric acid.
Described plant growth regulator ethrel and potassium para-nitrophenate weight proportion are 40～60: 1.
Described activating agent and spreader-sticker are selected Qu Latong (Triton) and tween (Tween) class, are preferably Tweens, more preferably are selected from polysorbas20, polysorbate40, polysorbate60, Tween 80 and the polysorbate85 one or more.
The present invention also provides the method for the above-mentioned Ratooning rice special of preparation, may further comprise the steps: water dissolving potassium para-nitrophenate; Water dissolving organic acid, sharp with the organic acid soln dissolve ethylene; The potassium para-nitrophenate aqueous solution is added in organic acid-ethephon solution, form potassium para-nitrophenate-ethrel-organic acid soln; Afterwards, activating agent and spreader-sticker are added in the mentioned solution; At last, water is quantitative.
The present invention further provides above-mentioned Ratooning rice special and spray application in the agricultural chemicals on the ratoon rice blade face in preparation.
Plant growth regulator of the present invention can be in the first rice crop grouting mid-term of ratoon rice, and namely results were used in front 20-25 days, were watered when using and were diluted to 500～700 times of liquid, then sprayed in the blade face.
Conditioning agent of the present invention has been introduced first rice crop plant height, the contracting short stem length of internode of downgrading ratoon rice, has improved stem stalk toughness, has improved stem stalk photosynthetic product storage capacity, has promoted to build up heavy root system, has improved improving activity of root system, has been increased the first rice crop lodging tolerance, the plant growth regulator of the raising regeneration bud percentage of earbearing tiller, such as ethrel; Introduce simultaneously and improve Rice Panicle Traits, increase the plant growth regulator of single tassel seed number and thousand kernel weight, such as potassium para-nitrophenate; Two class conditioning agent actings in conjunction have realized the storage of first rice crop and the growth of the organ (root, stem and leaf) in regeneration season, output formation, photosynthetic product and the multiple regulation and control of distribution and nutrient migration balance.
In the described conditioning agent, from first rice crop plant height, the contracting short stem length of internode of downgrading ratoon rice, improve stem stalk toughness, improve stem stalk photosynthetic product storage capacity, promote to build up heavy root system, improve improving activity of root system, increase the first rice crop lodging tolerance, the angle of the raising regeneration bud percentage of earbearing tiller, selected chlormequat (Chlormequat, CCC), first piperazine (Mepiquat-chloride, Pix), uniconazole P (Uniconazole, PP
333), daminozide (Daminozide, B9), ethrel (Ethephon, Eth), increase sweet phosphine (Glyphosine), preferably increase sweet phosphine and ethrel, in conjunction with application mode and practical function, ethrel is optimum as the foliage spraying agent composition.
From improving Rice Panicle Traits, increase and claim after single tassel seed number and thousand kernel weight, the optimization output angle of index to set out, selected gibberellin (Gibberellic acid, GA
3), Epibrassinolide (Brassinolide, BR), a-methyl α-naphthyl acetate (a-naphthylacetic acid, NAA), p-chlorophenoxyacetic acid (4-Chlorophenoxyacetic acid) and potassium para-nitrophenate (CompoundPotassium Nitrophenolate), preferred gibberellin and potassium para-nitrophenate, in conjunction with application mode and practical function, potassium para-nitrophenate is optimum as the foliage spraying agent composition.
Wherein, ethrel (Ethephon, Eth): chemical name: 2 chloroethyl phosphoric acid, molecular formula C
7H
8ClN, molecular weight 149.7, white waxy solid, 74～75 ℃ of fusing points.Soluble in water, be insoluble in acetone, ethyl acetate.Ethene is emitted in ethrel and water or hydroxy-containing compounds reaction, can emit ethene in the tissues such as root, leaf, stem, flower and fruit of plant, with metabolism, growth, the growth of regulating plant.
Potassium para-nitrophenate (Compound Potassium Nitrophenolate): chemical composition is 5-nitroguaiacol potassium (Potassium, 5-nitroguaiacolate), the mixture that mixes by weight 1: 2: 3 ratio of ONP potassium (Potassium ortho-nitrophenolate), p-nitrophenol potassium (Potassiumpara-nitrophenolate), wherein, 5-nitroguaiacol potassium molecular formula C
7H
6NO
4K, molecular weight 207.11; ONP potassium molecular formula C
6H
4NO
3K, molecular weight 177.10; P-nitrophenol potassium molecular formula C
6H
4NO
3K, molecular weight 177.10.The potassium para-nitrophenate molecular weight is 182, and sterling is red, yellow crystals mixture, and is soluble in water, dissolves in ethanol, methyl alcohol, acetone and other organic solvent, and is stable under the normal temperature, the phenol fragranced arranged, aqueous ph value 〉=8.5.Potassium para-nitrophenate to the taking root of plant, grow, bloom, result etc. all has good facilitation in each stage, delay senility; Promote heading, increase number of productive ear and grain number, improve ripening rate.
Organic acid of the present invention has been introduced the organic acid that promotes carbon cycle, raising photosynthetic efficiency, raising atpase activity, raising ratoon rice to resist temperature adverse circumstance ability.From promoting carbon cycle, improve photosynthetic efficiency, improve atpase activity, improving the angle that ratoon rice is resisted temperature adverse circumstance ability, citric acid, malic acid and succinic acid have been selected, in conjunction with application mode and practical function, optimization citric acid is as the foliage spraying agent composition.
Organic acid of the present invention is citric acid (Citric acid), chemical name; 2-hydroxy propane-1,2,3-tricarboxylic acids, chemical formula: C
6H
8O
7, molecular weight: 192.14.Citric acid is colourless or white crystalline powder, odorless, extremely sour, the soluble in water and ethanol of flavor, and the aqueous solution is aobvious acid.Relative density 1.542g/cm
3, 153 ℃ of fusing points (dehydration); There are different crystal habits in citric acid, and anhydrous citric acid C is arranged
6H
8O
7, the citric acid that contains water of crystallization is also arranged, comprise 2C
6H
8O
7H
2O, C
6H
8O
7H
2O and C
6H
8O
72H
2O.The present invention adopts Citric Acid Mono (Citric Acid Monohydrate), chemical formula: C
6H
8O
7H
2O, molecular weight: 210.14.
In above-mentioned prescription, three kinds of components have significant synergy, and ethrel can promote Ratooning Rice Roots and stem stalk to grow, improve the stem stalk lodging tolerance of first rice crop, improve the kernel grouting speed of first rice crop, promote regeneration bud to sprout, improve the percentage of earbearing tiller of ratoon rice; Potassium para-nitrophenate can improve blade, the root cell vigor of first rice crop and ratoon rice, promotes regeneration spike of rice section to grow; Citric acid promotes carbon cycle, raising photosynthetic efficiency, raising atpase activity, raising ratoon rice to resist temperature adverse circumstance ability.
Conditioning agent of the present invention is a kind ofly to have the first rice crop lodging tolerance that strengthens ratoon rice, promote first rice crop grouting and improve the product of the multi-functionals such as regeneration axillary bud sprouting rate, ripening rate, thousand kernel weight and raising output, it have nontoxic, have no side effect, cost is low, the characteristics such as easy to use.Again because the prescription of this product is novel unique, once use and to play multiple efficacies, compare the plant growth regulator of existing adjusting ratoon rice morphological index and yield index such as gibberellin, paclobutrazol, have small investment, sphere of action wide, can improve the ratoon rice lodging resistance comprehensively and improve the advantage of output, thereby the present invention has positive impetus to China's regeneration rice production.
According to the present patent application people in Youxi County west city, Fujian Province town with unite town's multiple years demonstration test and observe, use this product after, 2007 and 6-7 month in 2008 (rainy season) all regeneration rice fields of participating in the experiment all do not lodge; To yield of ratooning crop on average improves more than 15%.
The present invention has following beneficial effect:
1) significantly increased after using to fall 3, fall 4 and fall the ratio of the low position tiller joint position axillary bud sprouting Cheng Sui such as 5.
2) significantly increased to fall 4, fall 5 grain number per spikes of the low joint position axillalry bud regeneration fringe such as tillering.
3) increased substantially 2, fallen 3, fallen 4 and fall thousand kernel weight and the ripening rate of all tillering node axillalry buds regeneration fringes such as 5.
4) improved to fall 3, fall 4 and fall the low position tiller joint position axillary bud sprouting fringes such as 5 to the contribution rate of output, improved the output in regeneration season more than 15%.
Embodiment
Following examples are used for explanation the present invention, but are not used for limiting the scope of the invention.
Plant growth regulator of the present invention is selected Citric Acid Mono (bright great chemical plant, Wujiang, CAS registration number: 5949-29-1), (Lianyungang of Jiangsu founds this pesticide chemical Co., Ltd to ethrel, agriculture chemical registration card number: LS20060228) and potassium para-nitrophenate (the Zhengzhou farming reaches biochemical product factory), polysorbas20, polysorbate40, polysorbate60, Tween 80 and polysorbate85 be as activating agent and spreader-sticker, commercial acquisition.
Embodiment 1
At first, with the water-soluble solution potassium para-nitrophenate of 100ml 6g, be solution I; Secondly, with the water-soluble solution citric acid of 500ml 7g, then, with the sharp 240g of citric acid solution dissolve ethylene, dissolve complete is solution II; Afterwards solution I is poured in the solution II, after fully mixing, added again the 65g polysorbas20, shake up; At last, water is quantitatively to 1000g.
Embodiment 2
At first, with the water-soluble solution potassium para-nitrophenate of 100ml 6g, be solution I; Secondly, with the water-soluble solution citric acid of 500ml 3g, use the sharp 240g of citric acid solution dissolve ethylene, dissolve complete is solution II again; Afterwards solution I is poured in the solution II, after fully mixing, added again the 65g polysorbas20, shake up; At last, water is quantitatively to 1000g.
Embodiment 3
At first, with the water-soluble solution potassium para-nitrophenate of 100ml 6g, be solution I; Secondly, with the water-soluble solution citric acid of 500ml 5g, then, with the sharp 240g of citric acid solution dissolve ethylene, dissolve complete is solution II; Afterwards solution I is poured in the solution II, after fully mixing, added again the 65g polysorbas20, shake up; At last, water is quantitatively to 1000g.
Embodiment 4
At first, with the water-soluble solution potassium para-nitrophenate of 100ml 5g, be solution I; Secondly, with the water-soluble solution citric acid of 500ml 7g, then, with the sharp 250g of citric acid solution dissolve ethylene, dissolve complete is solution II; Afterwards solution I is poured in the solution II, after fully mixing, added again the 67g polysorbas20, shake up; At last, water is quantitatively to 1000g.
Embodiment 5
At first, with the water-soluble solution potassium para-nitrophenate of 100ml 5g, be solution I; Secondly, with the water-soluble solution citric acid of 500ml 3g, then, with the sharp 250g of citric acid solution dissolve ethylene, dissolve complete is solution II; Afterwards solution I is poured in the solution II, after fully mixing, added again the 67g polysorbas20, shake up; At last, water is quantitatively to 1000g.
Embodiment 6
At first, with the water-soluble solution potassium para-nitrophenate of 100ml 5g, be solution I; Secondly, with the water-soluble solution citric acid of 500ml 5g, then, with the sharp 250g of citric acid solution dissolve ethylene, dissolve complete is solution II; Afterwards solution I is poured in the solution II, after fully mixing, added again the 67g polysorbas20, shake up; At last, water is quantitatively to 1000g.
Embodiment 7
At first, with the water-soluble solution potassium para-nitrophenate of 100ml 4g, be solution I; Secondly, with the water-soluble solution citric acid of 500ml 7g, then, with the sharp 240g of citric acid solution dissolve ethylene, dissolve complete is solution II; Afterwards solution I is poured in the solution II, after fully mixing, added again the 65g polysorbas20, shake up; At last, water is quantitatively to 1000g.
Embodiment 8
At first, with the water-soluble solution potassium para-nitrophenate of 100ml 4g, be solution I; Secondly, with the water-soluble solution citric acid of 500ml 3g, then, with the sharp 240g of citric acid solution dissolve ethylene, dissolve complete is solution II; Afterwards solution I is poured in the solution II, after fully mixing, added again the 65g polysorbas20, shake up; At last, water is quantitatively to 1000g.
Embodiment 9
At first, with the water-soluble solution potassium para-nitrophenate of 100ml 4g, be solution I; Secondly, with the water-soluble solution citric acid of 500ml 5g, then, with the sharp 240g of citric acid solution dissolve ethylene, dissolve complete is solution II; Afterwards solution I is poured in the solution II, after fully mixing, added again the 65g polysorbas20, shake up; At last, water is quantitatively to 1000g.
Embodiment 10
At first, with the water-soluble solution potassium para-nitrophenate of 100ml 4g, be solution I; Secondly, with the water-soluble solution citric acid of 500ml 5g, then, with the sharp 240g of citric acid solution dissolve ethylene, dissolve complete is solution II; Afterwards solution I is poured in the solution II, after fully mixing, added the 35g polysorbas20 again, the 30g polysorbate85 shakes up; At last, water is quantitatively to 1000g.
Embodiment 11
At first, with the water-soluble solution potassium para-nitrophenate of 100ml 4g, be solution I; Secondly, with the water-soluble solution citric acid of 500ml 5g, then, with the sharp 240g of citric acid solution dissolve ethylene, dissolve complete is solution II; Afterwards solution I is poured in the solution II, after fully mixing, added again the 25g polysorbas20, the 25g polysorbate60, the 16g Tween 80 shakes up; At last, water is quantitatively to 1000g.
Embodiment 12
At first, with the water-soluble solution citric acid of 500ml 6g, then, with the sharp 240g of citric acid solution dissolve ethylene, dissolve complete is solution I; Secondly, with 80ml anhydrous alcohol solution gibberellin 15g, then add the 100ml polysorbas20, shake up, be solution II; At last solution I is poured in the solution II, after fully mixing, water is quantitatively to 1000g.
Embodiment 13
At first, with 300ml anhydrous alcohol solution gibberellin 40g, dissolve complete is solution I; Secondly, with 400ml anhydrous alcohol solution p-chlorophenoxyacetic acid 50g, then add the 100ml polysorbas20, shake up, be solution II; At last solution I is poured in the solution II, after fully mixing, with absolute ethyl alcohol quantitatively to 1000g.
Embodiment 14
The foliage-spray conditioning agent
The foliage-spray conditioning agent can be at first rice crop pustulation period of ratoon rice (before the results 20-25 days) foliage applying, when using embodiment 4,5,6 conditioning agent be watered and be diluted to 700 times of liquid, embodiment 1,2,3,7,8,9 is watered and is diluted to 500 times of liquid, then sprays in the blade face.
Experimental example 1 synergy experiment
Selecting ethrel, potassium para-nitrophenate and Citric Acid Mono is key component, 0,1,2,3 four concentration gradient (concentration gradient sees Table 1) is set respectively, carry out Orthogonal Composite, amount to 63 and process 1 contrast, take No. 2, the excellent boat of II for testing kind, first rice crop pustulation period (ripe front 20-25 days) foliage-spray, repeat for three times, regeneration maturing stage in season results, the paid survey in residential quarter is produced, measure Field densities, the lab analysis yield component.Table 1 ethrel (ETH), potassium para-nitrophenate (CPN) and Citric Acid Mono (CAM) concentration
Gradient (concentration: mg/L)
Table 2 ethrel (ETH), potassium para-nitrophenate (CPN) and Citric Acid Mono (CAM) synergy experiment (2007)
| Process | CK | E1 | E2 | E3 | CP1 | CP2 | CP3 | CA1 | CA2 | CA3 | E2CP2CA2 |
| Axillary bud sprouting rate (%) | 37.8 | 40.3 | 42.5 | 40.7 | 39.1 | 39.6 | 39.7 | 38.0 | 38.8 | 38.8 | 45.6 |
| Contrast increases (%) | / | 6.6 | 12.4 | 7.7 | 3.4 | 4.8 | 5.0 | 0.5 | 2.6 | 2.6 | 20.6 |
| Every M 2Spike number (cm) | 355.0 | 379.9 | 382.7 | 376.1 | 360.1 | 364.0 | 366.0 | 351.2 | 356.7 | 357.5 | 4193 |
| Contrast increases (%) | / | 7.0 | 7.8 | 5.9 | 1.4 | 2.5 | 3.1 | -1.1 | 0.5 | 0.7 | 18.1 |
| Number of grain per ear | 76.0 | 73.3 | 73.4 | 71.1 | 75.0 | 75.4 | 75.8 | 76.9 | 774 | 77.1 | 70.9 |
| Contrast increases (%) | / | -3.6 | -3.4 | -6.4 | -1.3 | -0.8 | -0.3 | 1.2 | 1.8 | 1.4 | -67 |
| Thousand kernel weight (g) | 24.5 | 25.3 | 25.1 | 25.7 | 25.5 | 25.5 | 25.7 | 24.7 | 24.9 | 24.9 | 25.3 |
| Contrast increases (g) | / | 3.3 | 24 | 4.9 | 4.1 | 41 | 4.9 | 0.8 | 1.6 | 1.6 | 3.3 |
| Ripening rate (%) | 93.7 | 94.3 | 94.5 | 94.1 | 94.2 | 94.3 | 94.6 | 92.3 | 92.8 | 92.7 | 94.7 |
| Contrast increases | / | 0.6 | 0.9 | 0.4 | 0.5 | 0.6 | 1.0 | -1.5 | -1.0 | -1.1 | 1.1 |
| (％) | |||||||||||
| Output (kg.hm -2) | 6234 | 6553 | 6602 | 6550 | 6449 | 6517 | 6481 | 6421 | 6427 | 6432 | 7521 |
| Contrast increases (%) | / | 5.1 | 5.9 | 5.1 | 3.4 | 4.5 | 4.0 | 3.0 | 3.1 | 3.2 | 20.6 |
Annotate: (wherein the CK representative sprays the clear water contrast, CP represent potassium para-nitrophenate, CA represent Citric Acid Mono, E represents ethrel)
The result shows: three kinds of components have significant synergy, and the axillary bud sprouting rate has improved 20.6%, and every square metre of spike number has improved 18.1%, and average Grain number per spike reduces by 6.7%, and thousand kernel weight increases 3.3%, and average hectare output has increased 1287kg, accounts for 20.6%.
Table 3 ethrel (ETH), potassium para-nitrophenate (CPN) and Citric Acid Mono (CAM) are to To yield of ratooning crop formation effect experiment (2008)
Annotate: (wherein the CK representative sprays the clear water contrast, CP represent potassium para-nitrophenate, CA represent Citric Acid Mono, E represents ethrel)
The result shows: 20-25 days foliage-spray ratoon rice yield-increasing modifying agents before the first rice crop results of ratoon rice, and ratoon rice volume increase 10.6%～16.1%, the further analysis finds that the ratoon rice yield-increasing modifying agent is on falling the impact of the 2 tillering node axillary bud sprouting percentage of earbearing tiller not quite; Increased substantially and fallen 3, fallen 4 and fall the 5 tillering node axillary bud sprouting percentage of earbearing tiller, increasing degree is 17.7%～144.4%; Reduce the grain number per spike that falls 2, falls 3 tillering node axillalry buds regeneration fringe, increased the grain number per spike that falls 4, falls 5 tillering node axillalry buds regeneration fringe, amplification 7.0%～9.4%; Improved 2～5 tillering node axillalry buds regeneration fringe thousand kernel weight and ripening rates, amplification is respectively 0.8%～5.2% and 0.1%～11.3%.It is 10.6%～16.1% that the ratoon rice yield-increasing modifying agent is processed amount of increase in production, wherein, 2 tillering node axillalry buds regeneration spike of rice yield reducation 1.2%～5.3%, but, fall 3, fall 4 and fall 5 tillering node axillalry buds regeneration spike of rice output and increase by 10.6%～185.7%, therefore, conditioning agent is processed the regeneration season output increase by 10.6%～16.1% of ratoon rice.
Experimental example 2 different Example formulations application methodes and effect tests
Above-described embodiment 1,2,3 conditioning agent be watered be diluted to 700 times of liquid, embodiment 4,5,6 conditioning agent are watered and are diluted to 650 times of liquid, embodiment 7,8,9,10,11 is watered and is diluted to 500 times of liquid, and embodiment 12 is watered 600 times of liquid, and embodiment 13 is watered 800 times of liquid, take No. 2, the excellent boat of II as the test kind, in first rice crop pustulation period (ripe before 20-25 days) foliage-spray, the contrast of foliage-spray clear water is set, three repetitions, ratoon rice maturing stage results are surveyed and are produced.
Table 4 ratoon rice special production-increase adjusting control agent result of the test (2008)
Annotate: (wherein the CK representative sprays the clear water contrast, and CP represents potassium para-nitrophenate, CA and represents Citric Acid Mono, E and represent that ethrel, 4-CPA represent p-chlorophenoxyacetic acid, GA3 represents gibberellin)
The result shows: the conditioning agent of 20-25 days foliage-spray embodiment 1～embodiment 13 before the first rice crop results of ratoon rice, and the ratoon rice effect of increasing production is better, and per unit number of productive ear increasing degree is large, and average output per hectare increases significantly; Show as, every square metre of spike number has increased by 6.6%～14.3%, and average output per hectare has increased by 8.8%～15.3%; Wherein, embodiment 3 foliage-spray effect of increasing production are best, and contrast hectare volume increase 879kg accounts for 15.3% of contrast output.
Claims (4)
1. a Ratooning rice special is characterized in that, this conditioning agent contains the component of following percentage by weight: plant growth regulator 21.4%～25.6%, organic acid 0.3%～0.6%, activating agent and spreader-sticker 6.5%～6.7%, water surplus;
Described plant growth regulator is ethrel and potassium para-nitrophenate, and weight proportion is 40～60:1; Described organic acid is citric acid;
Described activating agent and spreader-sticker are selected from one or more in polysorbas20, polysorbate40, polysorbate60, Tween 80 and the polysorbate85.
2. Ratooning rice special as claimed in claim 1 is characterized in that, described conditioning agent contains the component of following percentage by weight: plant growth regulator 24.6%, organic acid 0.5%, activating agent and spreader-sticker 6.6%, water 68.3%.
3. prepare the method for each described Ratooning rice special of claim 1～2, it is characterized in that, may further comprise the steps: water dissolving potassium para-nitrophenate; Water dissolving organic acid, sharp with the organic acid soln dissolve ethylene; The potassium para-nitrophenate aqueous solution is added in organic acid-ethephon solution, form potassium para-nitrophenate-ethrel-organic acid soln; Activating agent and spreader-sticker are added in the mentioned solution; Then water quantitatively and get final product.
4. spray application in the agricultural chemicals on the ratoon rice blade face such as each described Ratooning rice special of claim 1～2 in preparation.
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| CN103787739B (en) * | 2014-01-03 | 2015-11-11 | 湖南农业大学 | A kind of volume increase control method of hybridisation rice |
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Citations (4)
| Publication number | Priority date | Publication date | Assignee | Title |
|---|---|---|---|---|
| EP0287787A1 (en) * | 1983-05-02 | 1988-10-26 | Sumitomo Chemical Company, Limited | A plant growth regulating composition |
| CN1326676A (en) * | 2001-07-19 | 2001-12-19 | 深圳市诺普信农化有限公司 | Compount nitro-phenolic potassium salt-gibberellin plant growth regulator |
| CN1504090A (en) * | 2002-11-29 | 2004-06-16 | 冯太勤 | Anti-lodging invigorator formulation for rice |
| CN1524414A (en) * | 2003-02-26 | 2004-09-01 | 福建浩伦农业科技集团有限公司 | Plant growth regulator |
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Patent Citations (4)
| Publication number | Priority date | Publication date | Assignee | Title |
|---|---|---|---|---|
| EP0287787A1 (en) * | 1983-05-02 | 1988-10-26 | Sumitomo Chemical Company, Limited | A plant growth regulating composition |
| CN1326676A (en) * | 2001-07-19 | 2001-12-19 | 深圳市诺普信农化有限公司 | Compount nitro-phenolic potassium salt-gibberellin plant growth regulator |
| CN1504090A (en) * | 2002-11-29 | 2004-06-16 | 冯太勤 | Anti-lodging invigorator formulation for rice |
| CN1524414A (en) * | 2003-02-26 | 2004-09-01 | 福建浩伦农业科技集团有限公司 | Plant growth regulator |
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