CN110342979A - A kind of rice fertilizer synergist and preparation method thereof and application method - Google Patents
A kind of rice fertilizer synergist and preparation method thereof and application method Download PDFInfo
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Abstract
The present invention provides a kind of rice fertilizer synergist and preparation method thereof and application method, the rice fertilizer synergist include polyamino acid and plant hormone, and the plant hormone is made of methyl α-naphthyl acetate and salicylic acid.Rice fertilizer synergist of the invention is from the angle of metabolism physiology and hormone physiological action, plant hormone is formed with methyl α-naphthyl acetate and salicylic acid, compatibility polyamino acid, it acts synergistically between component, after being co-administered with fertilizer, the physiological slow release for effectively realizing fertilizer, improves utilization rate of fertilizer；The resistance of rice, including resistant to high temperatures and low temperature, drought-resistant and waterlogging, lodging tolerance are improved simultaneously, improves the physiological metabolism of rice, and rice is promoted to obtain good year production.
Description
Technical field
The present invention relates to technical field of fertilizers more particularly to a kind of rice fertilizer synergist and preparation method thereof and users
Method.
Background technique
Fertilizer is the important means of production of agricultural industry development, for promoting high-quality crop, high yield and stable yields, ensures grain
Safety has irreplaceable role.Chemical fertilizer is cereal crops " grain ", and grain yield is in a linear relationship with applying quantity of chemical fertilizer.
In order to improve the crop yield of unit area, soil applying fertilizer amount increases year after year.Statistics shows: in the latest 20 years, China
Fertile amount of application increases to 6348.7 ten thousand tons by more than 3,850 ten thousand tons；Up to the present, China's fertilizer amount accounts for world Fertilizer dosage
31%, it is equivalent to 4 times of world's average dose；Excessive fertilization leads to the reduction of fertilizer marginal efficiency, and chemical fertilizer utilization ratio reduces.China
Long-term 3000~3017.6 ten thousand hectares of Monitoring of Paddy Rice Plant Area, total output 2.0589~2.0856 hundred million ton.It is public by per hectare purity nitrogen 210
Jin calculates, and needs 433 kilogram/hectare of urea, urea amount 1299~13,070,000 ton applied every year into soil.This season utilization rate is pressed
24.98% calculates, and 974.51~980.51 ten thousand tons of annual number of dropouts causes economic loss 198.8~200.2 hundred million yuan (by urea
2040 yuan/ton of calculating).Excessive applied nitrogen not only causes huge economic loss, moreover, also resulting in soil organic matter content
It reduces, soil texture is deteriorated, bulk density increases, porosity is reduced, and edaphon mushroom quantity is reduced and bacterium colony type ratio is lost
The problems such as tune, disequilibrium between N P and K and microelement available nutrient, Rice Production enhances the dependence of chemical fertilizer.Also,
Excessive applied nitrogen causes rice grain nitrogen and protein content to increase, amino acid content proportional imbalance, under nutritional quality
Drop.Therefore, the utilization rate for improving fertilizer especially chemical fertilizer has great theoretical and practical significance rice industry development.
Existing research shows using conventional cultivation in conjunction with fertilizer practice, to a certain extent, fertilizer utilization can be improved
Rate reduces pollution by chemical fertilizer.First, farmyard manure, including stalk, animal wastes, green manure etc. are increased, is contained by increasing the soil organism
Amount improves Ecological Distribution of Soil Microorganisms environment, improves soil texture, improves the suction fertilizer and nutrient preserving capability of soil, increases soil colloid
To the adsorption capacity of the noxious materials such as heavy metal.Second, it, can be by determining dose, fertilising kind using rational application of fertilizers technology
Class, fertilizing time ensure the balance supply of soil nutrient, reduce the waste of chemical fertilizer, avoid polluting soil environment.The
Three, fertilizing method is improved, such as: the depth of ammonium hydrogen carbonate, which is applied, can be improved using 31%~32%, and urea can be improved 5%~12.7%.
But conventional cultivation is restricted with fertilizer practice investment height, slow effect, application conditions, application effect is limited, and there are also certain negative
It influences, such as: straw-returning needs large-scale agricultural machinery, is not suitable for Northeast plain Yield in Cold Region, and easily aggravate soil
Pest and disease damage harm；China's soil types is complicated and changeable, and essence amount rational application of fertilizers practical operation is difficult；N-dressed deeply needs large-scale agricultural machinery
Tool is supported.Therefore, conventional cultivation is promoted limited in conjunction with fertilizer practice.
Recently again studies have found that, it is modified by chemical fertilizer, delay the rate of release of available nutrient, it is possible to reduce fertilising
Number improves fertilizer utilization efficiency.In fertilizer modification technology, fertilizer coating technology (zeolite coated, starch packet first proposed
Film, coated with resin, sulphur coating etc.), by the physics stopping effect of film phase substance, delay the rate of release of fertilizer, improves nutrient
Validity, reduce nutrient loss, extend the nutrient lasting period.But this technology is found in application process: zeolite and starch
Coating delays releasing effect poor, little with common fertilizer rate of release difference；Resin is coated extended release significant effect, but topsoil soils
In resin shell white pollution seriously affect the development of crop root；Sulphur coating is unsuitable for acid soil in the south, easily causes soil
Acidification.Then there is scholar to propose to add ureaformaldehyde, nitrification inhibitor and urease inhibitor in fertilizer again, it is desirable to urinate by interference
Element and nitrate nitrogen digestion in the soil, denitrification process, reduce nitrogen loss, extend the lasting period of nitrogen, improve nitrogen benefit
With rate.But find in practical applications, ureaformaldehyde decomposition is related to microorganism, is influenced by temperature, humidity, and ureaformaldehyde
Be not suitable for dry crop；Region more than nitrification enzyme inhibitor and the unsuitable paddy field of urease inhibitor or precipitation, because water can drop
The concentration of low nitrifying ferment and urease inhibitor reduces validity；Also, such product does not reduce the function of urea loss.
Therefore, development of new rice fertilizer synergist, especially nitrogen manure synergist, it appears extremely urgent and important.
Summary of the invention
In view of the problems of the existing technology, the present invention provides a kind of rice fertilizer synergist and preparation method thereof and uses
Method.
The present invention provides a kind of rice fertilizer synergist, including polyamino acid and plant hormone, the plant hormone by
Methyl α-naphthyl acetate and salicylic acid composition.
Preferably, heretofore described rice fertilizer is the nitrogenous fertilizer suitable for rice or nitrogenous compound fertilizer；It is further excellent
It is selected as urea.
Plant hormone has important regulation (to promote, inhibit) effect, according to its effect, substantially will the growth and development of plant
Plant hormone is divided into growth promoter and growth retardant, wherein growth retardant includes gibberellin (GA3), in table rape element
Rouge (BR), methyl α-naphthyl acetate (also known as α-naphthylacetic acid, NAA), heteroauxin (IAA) and indolebutyric acid (IBA) etc., growth retardant includes
Paclobutrazol (PP333), uniconazole P (S3307), cycocel (CCC), TrinexAN_SNacethyl (TE), mepiquat chloride (DPC), salicylic acid (SA) and jasmine
Jasmine acid (JA) etc..
The present invention has found the plant being made of methyl α-naphthyl acetate and salicylic acid from the angle of metabolism physiology and hormone physiological action
Hormone can effectively facilitate root system construction, improve root activity, and raising crop is resistant to high temperatures, resists cold and disease resistance, and nitrogen is promoted to inhale
Assimilation is received, nitrogen utilization efficiency is improved；Meanwhile acting synergistically with polyamino acid, it can preferably improve fertilizer in soil
Available state and rate of release improve the physiological metabolism of crop, improve the utilization rate of fertilizer especially nitrogen manure.
Preferably, the methyl α-naphthyl acetate and salicylic mass ratio are 2:0.2~5；Further preferably 2:1.
When methyl α-naphthyl acetate and salicylic mass ratio control within the above range, the fertilizer synergist improves paddy rice anti contravariance
The effect of (resistant to high temperatures and low temperature, drought-resistant and waterlogging, resistant to lodging) is more preferable.
Preferably, the polyamino acid is poly-aspartic-acid and/or polyglutamic acid；Further preferably poly- lucid asparagus
Propylhomoserin.
From crop internal physiological metabolic process is improved, crop anti-adversity is improved, improves fertilizer quick-acting, improves fertilizer utilization
The angle of rate selects poly-aspartic-acid.From chelating ammonium ion and nitrate ion electrically is adsorbed, improves ammonium ion stability,
The angle for improving soil particle electronegativity and enrichment activation mineral element, selects poly-aspartic-acid (polyaspartic
Acid, PASP) or polyglutamic acid (polyglutamic acid, PGA), or both compound, connected applications mode and practical effect
Fruit, more preferably poly-aspartic-acid.
Preferably, the rice fertilizer synergist further includes microelement.
The introducing of microelement can improve the stability and activity of stress protein, regulate and control the development of yield organ, promote water
Rice high yield.
Preferably, the microelement is one of zinc sulfate, manganese sulfate and boric acid or a variety of；Further preferably boron
Acid.
When selecting boric acid, improves stress protein stability and active effect is more excellent, act synergistically with remaining component
More preferably.
In a preferred embodiment of the invention, the rice fertilizer synergist includes the raw material of following parts by weight: poly-
15-38 parts of asparatate, 10-24 parts of methyl α-naphthyl acetate, 5-12 parts of salicylic acid and 0.5-1.5 parts of boric acid.
In above-mentioned technical proposal, by poly-aspartic-acid, methyl α-naphthyl acetate, four kinds of substance reasonable compatibilities of salicylic acid and boric acid, hair
Synergistic effect is waved, obtained fertilizer synergist is added in chemical nitrogen fertilizer or NPK compound fertilizer, can reach following effect: improvementization
The electronegativity of N P and K inorganic ions in fertilizer improves fertilizer solubility, increases fertilizer quick-acting；By ammonium root, nitrate anion etc. by nothing
Machine ion conversion is Chelating state or high electronegativity slow-acting type ion cluster, reduces the rate travel of nutrient ion in the soil, reduces
Nutrient loss extends fertilizer efficiency, improves utilization rate of fertilizer；After being manured into soil, improve soil particle adsorption capacity, improves soil particle
Cation exchange capacity (CEC), enhance the fertilizer-preserving ability of soil, be enriched with nutrient, reduce nutrient loss, extend fertilizer efficiency；Delay urea and nitre
Nitrification, the denitrification process of state nitrogen in the soil reduce nitrogen forming amount, reduce loss of nitrogen fertilizer；The stability of biomembrane is improved,
Improve crop anti-adversity, including resistant to high temperatures and low temperature, drought-resistant and waterlogging, resistant to lodging, guarantee high crop yield stable yields；Promote root system
Construction improves root activity, extends leaf longevity and functional period, promotees precocious, anti-early ageing.
The synergistic effect of four kinds of poly-aspartic-acid, methyl α-naphthyl acetate, salicylic acid and boric acid components is verified.Selection is poly-
Asparagus cochinchinensis ammonia acid sodium (PASP), methyl α-naphthyl acetate (NAA), salicylic acid (SA) and boric acid (B) are main component, are respectively set 0,1,2,3
Four dosage gradients (dosage gradient is shown in Table 1), -2018 years 2015, are respectively provided with the field experiment of the different factors, weigh three times
It is multiple.By the processing of different component proportion, base is applied after mixing evenly with urea (equivalent 12.5kg purity nitrogen per acre), in three leaf of rice seedling
One heart stage, was put into 4 DEG C of Low- temperature culture rooms and handles 4 days, repeated three times, and hepatocuprein (SOD) activity, peroxide is measured by sampling
Compound enzyme (POD) activity and malonaldehyde (MDA) content.It is test kind with prosperous excellent 9113, in rice growing in field experiment
Before, base is applied after mixing evenly with urea (equivalent 12.5kg purity nitrogen per acre), is repeated three times；Maturity period harvest, surveys and produces.Test result
As shown in Table 2-4, wherein CK representative sprays clear water control, P represents poly-aspartic-acid, N represents methyl α-naphthyl acetate, S represents salicylic acid,
B represents boric acid, and SOD represents superoxide dismutase, and POD represents peroxidase, and MDA represents malonaldehyde.
1 poly-aspartic-acid of table, methyl α-naphthyl acetate, salicylic acid and boric acid weight gradient table (unit: kg/ tons of urea)
| Code | PASP | NAA | SA | H3BO3 |
| 0 | 0 | 0 | 0 | 0 |
| 1 | 1.50 | 0.5 | 0.25 | 0.05 |
| 2 | 2.65 | 1.5 | 0.75 | 0.10 |
| 3 | 3.80 | 2.5 | 1.25 | 0.15 |
2 poly-aspartic-acid of table, methyl α-naphthyl acetate, salicylic acid and the synergistic effect experiment of boric acid fertilizer utilization efficiency
Note: nitrogenous fertilizer wilfully force of labor=fertilization area rice yield/amount of nitrogen；
Nitrogenous fertilizer agronomy efficiency=(fertilization area rice yield-do not apply fertilizer check plot rice yield)/amount of nitrogen.
3 poly-aspartic-acid of table, methyl α-naphthyl acetate, salicylic acid and the synergistic effect experiment of boric acid resistance
4 poly-aspartic-acid of table, methyl α-naphthyl acetate, salicylic acid and the synergistic effect experiment of boric acid yield
By table 2-4 it is found that poly-aspartic-acid, methyl α-naphthyl acetate, salicylic acid and boric acid have significant synergistic effect, resistance
It significantly improves, wherein 121.01% and 65.03%, mda content has been respectively increased in superoxide dismutase and peroxidase
Reduce 55.15%；Nitrogen fertilizer slow-releasing enhancing, nitrogen utilization efficiency improve, wherein inclined nitrogen fertilizer production rate and nitrogenous fertilizer agronomy efficiency point
Indescribably high 35.76% and 105.71%；Average mu spike number increases 10.22%, and grain number per spike increases by 15.97%, and mass of 1000 kernel increases
8.12%, setting percentage increases by 22.10%, and per mu yield increases 208.0kg, accounts for 31.26%.
The present invention also provides the preparation methods of above-mentioned rice fertilizer synergist, comprising: first prepares sodium hydroxide solution, then
Poly-aspartic-acid is added, after fully reacting obtains sodium polyaspartate solution, adds methyl α-naphthyl acetate, salicylic acid and boric acid.
In above-mentioned preparation method, first poly-aspartic-acid is dissolved with sodium hydroxide solution, adds remaining component,
The dissolution for being conducive to each component obtains the rice fertilizer synergist of homogeneous.
In addition, the present invention also provides the application methods of above-mentioned rice fertilizer synergist, comprising: by the rice fertilizer synergistic
The uniform spraying of agent is in fertiliser granulates surface；
Or, the rice fertilizer synergist is added in fertilizer process.
In a preferred embodiment of the invention, fertilizer is urea, and having an intermediate product in production process is urea liquid,
Then the rice fertilizer synergist is added in urea liquid, so that fertilizer synergist be made more uniformly to combine with urea.
When stating rice fertilizer synergist in use, rice fertilizer described in 3.05-7.55kg is added in every 1000kg fertilizer
Synergist.If the amount of addition is very few, improve that utilization rate of fertilizer effect is unobvious, if addition amount excessively if will lead to fertilizer and make
Grain effect is poor, is not easy to dispense.
Fertilizer after being added to fertilizer synergist can be used as base manure or for top dressing.
Rice fertilizer synergist of the invention from the angle of metabolism physiology and hormone physiological action, with methyl α-naphthyl acetate and
Salicylic acid forms plant hormone, and compatibility polyamino acid acts synergistically between component, after being co-administered with fertilizer, effective reality
The physiological slow release of existing fertilizer, increases effect of fertilizer, improves utilization rate of fertilizer；The resistance of rice is improved simultaneously, including
Resistant to high temperatures and low temperature, drought-resistant and waterlogging, lodging tolerance improve the physiological metabolism of rice, and rice is promoted to obtain good quality and high output
Stable yields.
Specific embodiment
In order to make the object, technical scheme and advantages of the embodiment of the invention clearer, below in the embodiment of the present invention
Technical solution is clearly and completely described, it is clear that described embodiments are some of the embodiments of the present invention, rather than complete
The embodiment in portion.Based on the embodiments of the present invention, those of ordinary skill in the art are without creative efforts
Every other embodiment obtained, shall fall within the protection scope of the present invention.
In following embodiment, agents useful for same is commercially available acquisition:
Poly-aspartic-acid (Hebei cooperates with environmentally friendly Science and Technology Co., Ltd., CAS registration number: 5608-40-6), salicylic acid
(Hubei Hong Xinrui space Fine Chemical Co., Ltd, CAS registration number: 69-72-7), methyl α-naphthyl acetate (the good limited public affairs of industry chemical industry of Changzhou
Department, CAS registration number: 86-87-3), sodium hydroxide (Tianjin is with prosperous chemical plant, CAS registration number: 1310-73-2), boric acid (day
Jinshi City is with prosperous chemical plant, CAS registration number: 10043-35-3).
Embodiment 1
The present embodiment provides a kind of rice fertilizer synergists, including following components: poly-aspartic-acid 30g, methyl α-naphthyl acetate
10g, salicylic acid 5g and boric acid 1g.
The present embodiment also provides the preparation method of above-mentioned rice fertilizer synergist: weighing 27g sodium hydroxide first and is dissolved in
In 60ml water, later be added 30g poly-aspartic-acid, after complete reaction, sequentially add 10g methyl α-naphthyl acetate, 5g salicylic acid and
1g boric acid, is finally settled to 200ml with water.
Embodiment 2
The present embodiment provides a kind of rice fertilizer synergists, including following components: poly-aspartic-acid 30g, methyl α-naphthyl acetate
10g, salicylic acid 15g and boric acid 2g.Preparation method is the same as embodiment 1.
Embodiment 3
The present embodiment provides a kind of rice fertilizer synergists, including following components: poly-aspartic-acid 30g, methyl α-naphthyl acetate
30g, salicylic acid 25g and boric acid 2g.Preparation method is the same as embodiment 1.
Embodiment 4
The present embodiment provides a kind of rice fertilizer synergists, including following components: poly-aspartic-acid 30g, methyl α-naphthyl acetate
30g, salicylic acid 15g and boric acid 1g.Preparation method is the same as embodiment 1.
Embodiment 5
The present embodiment provides a kind of rice fertilizer synergists, including following components: poly-aspartic-acid 30g, methyl α-naphthyl acetate
30g, salicylic acid 5g and boric acid 3g.Preparation method is the same as embodiment 1.
Embodiment 6
The present embodiment provides a kind of rice fertilizer synergists, including following components: poly-aspartic-acid 30g, methyl α-naphthyl acetate 10g
With salicylic acid 15g.Preparation method is the same as embodiment 1.
Embodiment 7
The present embodiment provides a kind of rice fertilizer synergists, including following components: polyglutamic acid 30g, methyl α-naphthyl acetate 30g, water
Poplar acid 15g and zinc sulfate 1g.Preparation method is the same as embodiment 1.
Reference examples 1
This reference examples provides a kind of rice fertilizer synergist, including following components: poly-aspartic-acid 30g, heteroauxin
10g, salicylic acid 4g, cycocel 1g and boric acid 1g.Preparation method is the same as embodiment 1.
Reference examples 2
This reference examples provides a kind of rice fertilizer synergist, including following components: polyglutamic acid 30g, methyl α-naphthyl acetate 5g, indoles
Acetic acid 5g, salicylic acid 5g and boric acid 2g.Preparation method is the same as embodiment 1.
Experimental example
The rice fertilizer synergist that embodiment 1-7 and comparative example 1-2 are obtained distinguishes uniform spraying in urea granules surface,
Spraying ratio is that fertilizer per ton adds 10L rice fertilizer synergist.When fertilizer used is urea, fertilizer synergist can also be added
It is added in the urea liquid in production process.
By the above-mentioned nitrogen application added with fertilizer synergist in multiple demonstration test bases in Hubei Province and Heilongjiang Province,
Finally it has been observed that being respectively increased in, long-grained nonglutinous rice in 2017/japonica rice nitrogen agronomic efficiency and piece nitrogen fertilizer production rate in 2016
105.71% and 35.76%；All paddy fields of participating in the experiment do not occur Climatic regionalization (semilate rice/long-grained nonglutinous rice), chilling injury (japonica rice) and
Disaster caused by a windstorm lodging, different degrees of heat evil occurs for control field, damages to plants caused by sudden drop in temperature to lodge with disaster caused by a windstorm and influences, and damaging to plants caused by sudden drop in temperature influence includes small and weak seedling and extremely
Seedling, aggrieved rate is between 42%~60%；Yield averagely improves 27% or more；Heat hazard influence includes unfilled gtains, chalk rice, aggrieved rate
Between 37%~52%；Yield averagely improves 37% or more.In Heilongjiang Province, Hubei Province, all paddy field and control fields of participating in the experiment
In the case where not lodging, processing is than 20% or more control volume increase.
It follows that fertilizer synergist of the invention has the advantages that
(1) soil nitrogen loss amount is reduced, utilization rate of fertilizer is improved.The fertilizer synergist and nitrogenous fertilizer or NPK compound fertilizer are mixed
Application is closed, soil available nitrogen content is improved, reduces effective nitrogen content in 40cm or less soil, reduce nitrogen loss；
The ability for improving rice absorbing, assimilating nitrogen, improves nitrogen utilization efficiency；Reached promotion chemical fertilizer physiological slow release and
Improve the effect of utilization rate of fertilizer.
(2) improve plant nitrogen metabolic process, improve paddy rice anti contravariance.The fertilizer synergist and nitrogenous fertilizer or NPK compound fertilizer
After mixing application, rice root is huge, and secondary root quantity is more, and root activity is strong；Increase rice root to the pull-out capacity of soil and
Absorb the ability of nutrient, full stand, robust seedling；Straw lignin content and crude fiber content increase, tensile strength increase, it is resistant to lodging and
Degeneration-resistant border ability is strong.
(3) rice uniformity is improved, is promoted precocious.The fertilizer synergist mixes (base after application with nitrogenous fertilizer or NPK compound fertilizer
Apply) rice I and II tiller growing way neat and consistent；Blade is generous dark green, and functional period extends, and enhances photosynthesis, increases by thousand
Weight promotes precocious.
(4) it improves the yield and quality.Promote fringe and strengthen seed, improve grain number per spike and mass of 1000 kernel, reduces empty not plump seed rate, reduce chalk rice
Rate improves rice quality, improves yield, 20% or more volume increase.
Finally, it should be noted that the above embodiments are merely illustrative of the technical solutions of the present invention, rather than its limitations；Although
Present invention has been described in detail with reference to the aforementioned embodiments, those skilled in the art should understand that: it still may be used
To modify the technical solutions described in the foregoing embodiments or equivalent replacement of some of the technical features；
And these are modified or replaceed, technical solution of various embodiments of the present invention that it does not separate the essence of the corresponding technical solution spirit and
Range.
Claims (10)
1. a kind of rice fertilizer synergist, including polyamino acid and plant hormone, which is characterized in that the plant hormone is by naphthalene
Acetic acid and salicylic acid composition；
Preferably, the rice fertilizer is nitrogenous fertilizer or nitrogenous compound fertilizer.
2. a kind of rice fertilizer synergist according to claim 1, which is characterized in that the methyl α-naphthyl acetate and salicylic matter
Amount is than being 2:0.2~5, preferably 2:1.
3. a kind of rice fertilizer synergist according to claim 1 or 2, which is characterized in that the polyamino acid is poly-
Asparatate and/or polyglutamic acid；Preferably poly-aspartic-acid.
4. described in any item a kind of rice fertilizer synergists according to claim 1~3, which is characterized in that the rice fertilizer
Synergist further includes microelement.
5. a kind of rice fertilizer synergist according to claim 4, which is characterized in that the microelement be zinc sulfate,
One of manganese sulfate and boric acid are a variety of；Preferably boric acid.
6. described in any item a kind of rice fertilizer synergists according to claim 1~5, which is characterized in that the rice fertilizer
Synergist includes the raw material of following parts by weight: 15-38 parts of poly-aspartic-acid, 10-24 parts of methyl α-naphthyl acetate, 5-12 parts of salicylic acid and boron
It is 0.5-1.5 parts sour.
7. the preparation method of rice fertilizer synergist as claimed in claim 6 characterized by comprising first prepare sodium hydroxide
Then poly-aspartic-acid is added in solution, after fully reacting, add methyl α-naphthyl acetate, salicylic acid and boric acid.
8. the application method of rice fertilizer synergist described in any one of claims 1-6 characterized by comprising will be described
The uniform spraying of rice fertilizer synergist is in fertiliser granulates surface；
Or, the rice fertilizer synergist is added in fertilizer process.
9. application method according to claim 8, which is characterized in that in urea production process, by the rice fertilizer
Synergist is added in urea liquid.
10. application method according to claim 8, which is characterized in that add 3.05-7.55kg institute in every 1000kg fertilizer
State rice fertilizer synergist.
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| CN113057179A (en) * | 2021-04-06 | 2021-07-02 | 扬州大学 | Regulator for preventing/relieving physiological withering of Subei soft rice and japonica rice and cultivation method |
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| 杨晓娟 等: "香稻不同生育时期叶片SOD、POD 酶活性及MDA含量对播期的响应", 《安徽农业科学》 * |
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Cited By (2)
| Publication number | Priority date | Publication date | Assignee | Title |
|---|---|---|---|---|
| CN113057179A (en) * | 2021-04-06 | 2021-07-02 | 扬州大学 | Regulator for preventing/relieving physiological withering of Subei soft rice and japonica rice and cultivation method |
| CN113057179B (en) * | 2021-04-06 | 2022-04-29 | 扬州大学 | Regulator for preventing/relieving physiological withering of Subei soft rice and japonica rice and cultivation method |
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