CN101669516A - 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 ratoon rice special production-increase regulator and its production 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, the cereal crops that paddy rice is China's cultivated area maximum, per unit area yield height, 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 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 staple food with rice, 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, the paddy rice cultivated area approximately reaches 4.3 hundred million mu, about 1.89 hundred million tons of gross output, visible rice demand space is very big, 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 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 sleeping bud germination and growth on the rice stub become fringe and gather in the crops one season paddy rice.Its breeding time is short, and daily output height is economized 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 promptly 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 influences the sleeping bud germination rate is photosynthetic product amount and the root system vigor of storing in female stem.The first rice crop pustulation period is at a time when rainy season, long-term overcast and rainy few photograph, and the photosynthetic product storage capacity is few and the root system vigor is low in female stem, usually causes regeneration bud to send out Miao Buqi, and number of productive ear reduces, and output reduces; Cause lodging as typhoon or heavy showers, female stem root system fracture, aging, regeneration bud stasi, ratoon rice will be had no harvest, and therefore, prevent that first rice crop from lodging, increasing female stem material storage capacity, raising root system vigor is of crucial importance.
In order to improve the output of ratoon rice, the scientific research personnel discovers, enriches bud fertilizer, foliage-spray gibberellin and the basic element of cell division and all can improve output.Forefathers discover (Liao's hut Lin etc., 1991; Yuan Ji is superfine, and 1996; Vergara, 1996; Shi Nengpu etc., 1997), executed short bud fertilizer in 15～20 days behind the neat fringe of first rice crop, promptly every mu enriches 15 kilograms in urea, can improve female stem sheath dry matter weight, improves the germinating capacity of regeneration bud; Further discover, short bud 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 portion, reduced relatively and preserved the distribution of photosynthetic product in female stem to fringe portion, 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 the root system vigor.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 the 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 have reduced the grain number per spike of first rice crop significantly in the process of falling the strong stalk of stalk, thereby it is cause the underproduction significantly, 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, at 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, the root system vigor 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 root system vigor, from improving female stem quality, improve first rice crop fringe portion grouting speed, remove first rice crop fringe portion depression effect ahead of time, the angle that promotes regeneration bud to sprout is set out, developed a kind of environmentally friendly ratoon rice special production-increase regulator, guaranteeing that the strong stalk of first rice crop is anti-, promote under the solid prerequisite of grouting, improve regeneration season sleeping bud and sprout the 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 ratoon rice special production-increase regulator and its production 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 ratoon rice special production-increase regulator, this conditioning agent contains following components in weight percentage: 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 following components in weight percentage: 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 TritonX (Triton) and tween (Tween) class for use, 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 ratoon rice special production-increase regulator of preparation, may further comprise the steps: water dissolving potassium para-nitrophenate; Water dissolving organic acid is with organic acid soln dissolve ethylene profit; 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 above-mentioned solution; At last, water is quantitative.
The present invention further provides above-mentioned ratoon rice special production-increase regulator 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 promptly results were used in preceding 20-25 days, converted water when using and were diluted to 500～700 times of liquid, sprayed in the blade face then.
Conditioning agent of the present invention has been introduced the first rice crop plant height of dwarfing ratoon rice, the short stem length of internode that contracts, raising stem stalk toughness, raising stem stalk photosynthetic product storage capacity, has been promoted to build up the plant growth regulator of heavy root system, raising root system vigor, increase first rice crop lodging tolerance, the raising regeneration bud percentage of earbearing tiller, as ethrel; Introduce simultaneously and improve paddy rice fringe portion proterties, increase the plant growth regulator of single tassel seed number and thousand kernel weight, 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, build up the angle of heavy root system, raising root system vigor, increase first rice crop lodging tolerance, the raising regeneration bud percentage of earbearing tiller from the first rice crop plant height of dwarfing ratoon rice, the short stem length of internode that contracts, raising stem stalk toughness, raising stem stalk photosynthetic product storage capacity, promotion, selected chlormequat (Chlormequat, CCC), first piperazine (Mepiquat-chloride, Pix), uniconazole P (Uniconazole, PP
333), daminozide (Daminozide, B9), (Ethephon Eth), increase sweet phosphine (Glyphosine), preferably increases sweet phosphine and ethrel to ethrel, and in conjunction with application mode and practical function, ethrel is as foliage spraying agent composition optimum.
From improving paddy rice fringe portion proterties, 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), table brassinosteroid (Brassinolide, BR), a-methyl (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 as foliage spraying agent composition optimum.
Wherein, and 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, to regulate metabolism, growth, the growth of 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), right-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; Right-nitrophenol potassium molecular formula C
6H
4NO
3K, molecular weight 177.10.The potassium para-nitrophenate molecular weight is 182, and pure product are red, yellow crystals mixture, and are soluble in water, dissolve in ethanol, methyl alcohol, acetone and other organic solvent, and normal temperature is stable down, the phenol fragranced is 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 it is acid that the aqueous solution shows.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 ratoon rice root system 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 system cell viability of first rice crop and ratoon rice, promotes regeneration spike of rice portion 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 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, 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 ratoon rice performance resistant to lodging 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, all rice fields of regenerating of participating in the experiment did not all lodge 2007 and 6-7 month in 2008 (rainy season); 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 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 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 low position tiller joint position axillary bud sprouting fringes such as 5 to the contribution rate of output, the output that has improved regeneration season is more than 15%.
Embodiment
Following examples are used to illustrate 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 for use, CAS registration number: 5949-29-1), ethrel (Jiangsu Lianyungang Liben Agro-chemical Co., Ltd., 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 potassium para-nitrophenate 6g that separates of 100ml, be solution I; Secondly, with the water-soluble citric acid 7g that separates of 500ml, then, with the sharp 240g of citric acid solution dissolve ethylene, dissolving is solution II fully; Afterwards solution I is poured in the solution II, after fully mixing, added the 65g polysorbas20 again, shake up; At last, water is quantitatively to 1000g.
Embodiment 2
At first, with the water-soluble potassium para-nitrophenate 6g that separates of 100ml, be solution I; Secondly, with the water-soluble citric acid 3g that separates of 500ml, use the sharp 240g of citric acid solution dissolve ethylene again, dissolving is solution II fully; Afterwards solution I is poured in the solution II, after fully mixing, added the 65g polysorbas20 again, shake up; At last, water is quantitatively to 1000g.
Embodiment 3
At first, with the water-soluble potassium para-nitrophenate 6g that separates of 100ml, be solution I; Secondly, with the water-soluble citric acid 5g that separates of 500ml, then, with the sharp 240g of citric acid solution dissolve ethylene, dissolving is solution II fully; Afterwards solution I is poured in the solution II, after fully mixing, added the 65g polysorbas20 again, shake up; At last, water is quantitatively to 1000g.
Embodiment 4
At first, with the water-soluble potassium para-nitrophenate 5g that separates of 100ml, be solution I; Secondly, with the water-soluble citric acid 7g that separates of 500ml, then, with the sharp 250g of citric acid solution dissolve ethylene, dissolving is solution II fully; Afterwards solution I is poured in the solution II, after fully mixing, added the 67g polysorbas20 again, shake up; At last, water is quantitatively to 1000g.
Embodiment 5
At first, with the water-soluble potassium para-nitrophenate 5g that separates of 100ml, be solution I; Secondly, with the water-soluble citric acid 3g that separates of 500ml, then, with the sharp 250g of citric acid solution dissolve ethylene, dissolving is solution II fully; Afterwards solution I is poured in the solution II, after fully mixing, added the 67g polysorbas20 again, shake up; At last, water is quantitatively to 1000g.
Embodiment 6
At first, with the water-soluble potassium para-nitrophenate 5g that separates of 100ml, be solution I; Secondly, with the water-soluble citric acid 5g that separates of 500ml, then, with the sharp 250g of citric acid solution dissolve ethylene, dissolving is solution II fully; Afterwards solution I is poured in the solution II, after fully mixing, added the 67g polysorbas20 again, shake up; At last, water is quantitatively to 1000g.
Embodiment 7
At first, with the water-soluble potassium para-nitrophenate 4g that separates of 100ml, be solution I; Secondly, with the water-soluble citric acid 7g that separates of 500ml, then, with the sharp 240g of citric acid solution dissolve ethylene, dissolving is solution II fully; Afterwards solution I is poured in the solution II, after fully mixing, added the 65g polysorbas20 again, shake up; At last, water is quantitatively to 1000g.
Embodiment 8
At first, with the water-soluble potassium para-nitrophenate 4g that separates of 100ml, be solution I; Secondly, with the water-soluble citric acid 3g that separates of 500ml, then, with the sharp 240g of citric acid solution dissolve ethylene, dissolving is solution II fully; Afterwards solution I is poured in the solution II, after fully mixing, added the 65g polysorbas20 again, shake up; At last, water is quantitatively to 1000g.
Embodiment 9
At first, with the water-soluble potassium para-nitrophenate 4g that separates of 100ml, be solution I; Secondly, with the water-soluble citric acid 5g that separates of 500ml, then, with the sharp 240g of citric acid solution dissolve ethylene, dissolving is solution II fully; Afterwards solution I is poured in the solution II, after fully mixing, added the 65g polysorbas20 again, shake up; At last, water is quantitatively to 1000g.
Embodiment 10
At first, with the water-soluble potassium para-nitrophenate 4g that separates of 100ml, be solution I; Secondly, with the water-soluble citric acid 5g that separates of 500ml, then, with the sharp 240g of citric acid solution dissolve ethylene, dissolving is solution II fully; 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 potassium para-nitrophenate 4g that separates of 100ml, be solution I; Secondly, with the water-soluble citric acid 5g that separates of 500ml, then, with the sharp 240g of citric acid solution dissolve ethylene, dissolving is solution II fully; Afterwards solution I is poured in the solution II, after fully mixing, added the 25g polysorbas20 again, the 25g polysorbate60, the 16g Tween 80 shakes up; At last, water is quantitatively to 1000g.
Embodiment 12
At first, with the water-soluble citric acid 6g that separates of 500ml, then, with the sharp 240g of citric acid solution dissolve ethylene, dissolving is solution I fully; Secondly,, add the 100ml polysorbas20 then, shake up, be solution II with 80ml anhydrous alcohol solution gibberellin 15g; 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, dissolving is solution I fully; Secondly,, add the 100ml polysorbas20 then, shake up, be solution II with 400ml anhydrous alcohol solution p-chlorophenoxyacetic acid 50g; 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 the conditioning agent of embodiment 4,5,6 is converted water and be diluted to 700 times of liquid, embodiment 1,2,3,7,8,9 converts water and is diluted to 500 times of liquid, sprays in the blade face then.
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, carrying out Orthogonal Composite, amount to 63 and handle 1 contrast, serves as for No. 2 the test kind with the excellent boat of II, first rice crop pustulation period (ripe preceding 20-25 days) foliage-spray, repeat for three times, regeneration maturing stage in season results, the real receipts in sub-district are surveyed and are produced, measure field density, 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)
| Handle | ??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 |
| Comparison is according to increasing (%) | ??/ | ??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 |
| Comparison is according to increasing (%) | ??/ | ??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 |
| Comparison is according to increasing (%) | ??/ | ??-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 |
| Comparison is according to increasing (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 |
| Comparison is according to increasing | ??/ | ??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 |
| Comparison is according to increasing (%) | ??/ | ??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, and on behalf of potassium para-nitrophenate, CA, CP represent Citric Acid Mono, E to represent 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 single 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, and on behalf of potassium para-nitrophenate, CA, CP represent Citric Acid Mono, E to represent 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 to falling the influence 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 handled amount of increase in production, wherein, the 2 tillering node axillalry buds regeneration spike of rice output of falling reduces by 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 handled the regeneration season output increase by 10.6%～16.1% of ratoon rice.
Experimental example 2 different Example formulations application methodes and effect tests
The conditioning agent of the foregoing description 1,2,3 is converted water be diluted to 700 times of liquid, the conditioning agent of embodiment 4,5,6 is converted water and is diluted to 650 times of liquid, embodiment 7,8,9,10,11 converts water and is diluted to 500 times of liquid, and embodiment 12 converts 600 times of liquid of water, and embodiment 13 converts 800 times of liquid of water, with the excellent boat of II is for No. 2 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 on behalf of potassium para-nitrophenate, CA, CP represent Citric Acid Mono, E to represent ethrel, 4-CPA to represent p-chlorophenoxyacetic acid, GA3 to represent 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 average unit are number of productive ear increasing degree is big, 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 the bests, comparison accounts for 15.3% of contrast output according to hectare volume increase 879kg.
Claims (8)
1, a kind of ratoon rice special production-increase regulator is characterized in that, this conditioning agent contains following components in weight percentage: plant growth regulator 21.4%～25.6%, organic acid 0.3%～0.6%, activating agent and spreader-sticker 6.5%～6.7%, water surplus.
2, ratoon rice special production-increase regulator as claimed in claim 1 is characterized in that, described conditioning agent contains following components in weight percentage: plant growth regulator 24.6%, organic acid 0.5%, activating agent and spreader-sticker 6.6%, water 68.3%.
3, ratoon rice special production-increase regulator as claimed in claim 1 or 2 is characterized in that, described plant growth regulator is ethrel and potassium para-nitrophenate; Described organic acid is selected from citric acid, malic acid or succinic acid.
4, ratoon rice special production-increase regulator as claimed in claim 3 is characterized in that, described plant growth regulator ethrel and potassium para-nitrophenate weight proportion are 40～60: 1.
5, ratoon rice special production-increase regulator as claimed in claim 3 is characterized in that, described organic acid is a citric acid.
6, as each described ratoon rice special production-increase regulator of claim 1～5, it is characterized in that described activating agent and spreader-sticker are selected from one or more in polysorbas20, polysorbate40, polysorbate60, Tween 80 and the polysorbate85.
7, prepare the method for each described ratoon rice special production-increase regulator of claim 1～6, it is characterized in that, may further comprise the steps: water dissolving potassium para-nitrophenate; Water dissolving organic acid is with organic acid soln dissolve ethylene profit; 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 above-mentioned solution; Water quantitatively promptly then.
8, spray application in the agricultural chemicals on the ratoon rice blade face as each described ratoon rice special production-increase regulator of claim 1～7 in preparation.
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Cited By (3)
| Publication number | Priority date | Publication date | Assignee | Title |
|---|---|---|---|---|
| CN103787739A (en) * | 2014-01-03 | 2014-05-14 | 湖南农业大学 | Yield increase regulation method for hybrid rice |
| CN104335861A (en) * | 2013-10-29 | 2015-02-11 | 华中农业大学 | Method of fully mechanized rice cropping during two harvesting seasons |
| CN108307958A (en) * | 2018-04-13 | 2018-07-24 | 中国水稻研究所 | A kind of plant growth regulator and its cultural method for water rice in vitro ear |
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| Publication number | Priority date | Publication date | Assignee | Title |
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| JPS59204105A (en) * | 1983-05-02 | 1984-11-19 | Sumitomo Chem Co Ltd | Plant growth regulation 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 |
| CN1278608C (en) * | 2003-02-26 | 2006-10-11 | 福建浩伦生物工程技术有限公司 | Plant growth regulator |
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Cited By (5)
| Publication number | Priority date | Publication date | Assignee | Title |
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| CN104335861A (en) * | 2013-10-29 | 2015-02-11 | 华中农业大学 | Method of fully mechanized rice cropping during two harvesting seasons |
| CN104335861B (en) * | 2013-10-29 | 2016-06-15 | 华中农业大学 | A kind of two methods receiving entire mechanization rice cropping |
| CN103787739A (en) * | 2014-01-03 | 2014-05-14 | 湖南农业大学 | Yield increase regulation method for hybrid rice |
| CN103787739B (en) * | 2014-01-03 | 2015-11-11 | 湖南农业大学 | A kind of volume increase control method of hybridisation rice |
| CN108307958A (en) * | 2018-04-13 | 2018-07-24 | 中国水稻研究所 | A kind of plant growth regulator and its cultural method for water rice in vitro ear |
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