CN108218640A - A kind of multielement paddy rice-dedicated fertilizer and its manufacturing method - Google Patents
A kind of multielement paddy rice-dedicated fertilizer and its manufacturing method Download PDFInfo
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- CN108218640A CN108218640A CN201810337783.0A CN201810337783A CN108218640A CN 108218640 A CN108218640 A CN 108218640A CN 201810337783 A CN201810337783 A CN 201810337783A CN 108218640 A CN108218640 A CN 108218640A
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- C—CHEMISTRY; METALLURGY
- C05—FERTILISERS; MANUFACTURE THEREOF
- C05B—PHOSPHATIC FERTILISERS
- C05B7/00—Fertilisers based essentially on alkali or ammonium orthophosphates
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- C—CHEMISTRY; METALLURGY
- C05—FERTILISERS; MANUFACTURE THEREOF
- C05G—MIXTURES OF FERTILISERS COVERED INDIVIDUALLY BY DIFFERENT SUBCLASSES OF CLASS C05; MIXTURES OF ONE OR MORE FERTILISERS WITH MATERIALS NOT HAVING A SPECIFIC FERTILISING ACTIVITY, e.g. PESTICIDES, SOIL-CONDITIONERS, WETTING AGENTS; FERTILISERS CHARACTERISED BY THEIR FORM
- C05G3/00—Mixtures of one or more fertilisers with additives not having a specially fertilising activity
-
- C—CHEMISTRY; METALLURGY
- C05—FERTILISERS; MANUFACTURE THEREOF
- C05G—MIXTURES OF FERTILISERS COVERED INDIVIDUALLY BY DIFFERENT SUBCLASSES OF CLASS C05; MIXTURES OF ONE OR MORE FERTILISERS WITH MATERIALS NOT HAVING A SPECIFIC FERTILISING ACTIVITY, e.g. PESTICIDES, SOIL-CONDITIONERS, WETTING AGENTS; FERTILISERS CHARACTERISED BY THEIR FORM
- C05G3/00—Mixtures of one or more fertilisers with additives not having a specially fertilising activity
- C05G3/80—Soil conditioners
Abstract
The invention discloses a kind of multielement paddy rice-dedicated fertilizers, are as made from the raw material of following parts by weight：60 80 parts of feces of livestock and poultry, 30 40 parts of humic acid, 20 30 parts of plant ash, 40 50 parts of urea, 15 25 parts of monoammonium phosphate, 30 40 parts of potassium dihydrogen phosphate, 20 30 parts of potassium chloride, 57 parts of boric acid, 46 parts of magnesium sulfate, 35 parts of trace element, 24 parts of cross-linked chitosan, 2 parts of sodium dehydroacetate.The invention also discloses the manufacturing methods of the multielement paddy rice-dedicated fertilizer.Multielement paddy rice-dedicated fertilizer prepared by the present invention has comprehensive nutrition, the excellent properties for increasing both production and income, improving plant recovery of nutrient, fully meeting rice nutrient demand, single-dose application, meet the needs of entire growth period duration of rice, save manpower, soil aeration can also be improved and inhale fertile water retention property, promote rice strain robust growth, significantly improve yield and quality of rice.
Description
Technical field
The invention belongs to technical field of fertilizer production, and in particular to a kind of multielement paddy rice-dedicated fertilizer and its manufacturing method.
Background technology
China is a large agricultural country and chemical fertilizer production and the big country used, and the country applies chemical fertilizer from 1949 not
Foot 0.1% arrives the plantation of most crops at present all using chemical fertilizer, and China's chemical fertilizer total output and amount of application account for generation at present
Boundary first.Rice is one of most important cereal crops in the world.With the sharp increase of population in the world, improving rice yield also becomes
The problem of extremely urgent.Wherein fertilizer plays an important role in terms of the yield for improving rice.Pass through the rational application of fertilizer, one side
It can coordinate the contradiction of demand and fertilizer provision from soil of the paddy growth to nutrient, to achieve the purpose that high yield and high quality；The opposing party
Face can use less fertilizers input, to obtain higher yield and maximum economic well-being of workers and staff, realize the purpose of cost-saving synergistic.
In Rice Production, since the use of fertilizer is there are some unreasonable factors, Rice Cropping payes attention to nitrogenous fertilizer in the process
Application, ignore the application of organic fertilizer and micro- fertilizer, organic fertilizer and inorganic fertilizer ratio serious unbalance, unreasonable and fertilising side of applying fertilizer
Method is improper to cause utilization rate of fertilizer relatively low, causes rice nutrition imbalance, the lodging underproduction, quality decline, while arable soil character
Deteriorate, seriously pollute environment.The natural resources efficiency such as Potential of Rice and soil cannot get due performance, limitation rice production
The raising of amount, the final economic benefit for influencing peasant simultaneously bring a series of ecological environment problems.
Invention content
The present invention provides a kind of nutrition comprehensively, increasing both production and income, improve plant recovery of nutrient, fully meet rice nutrient demand
Multielement paddy rice-dedicated fertilizer.
The present invention also provides the manufacturing methods of the multielement paddy rice-dedicated fertilizer.
What the purpose of the present invention can be achieved through the following technical solutions：A kind of multielement paddy rice-dedicated fertilizer, is by following
Made from the raw material of parts by weight：60-80 parts of feces of livestock and poultry, 30-40 parts of humic acid, 20-30 parts of plant ash, 40-50 parts of urea, phosphorus
Sour monoammonium 15-25 parts, 30-40 parts of potassium dihydrogen phosphate, 20-30 parts of potassium chloride, 5-7 parts of boric acid, 4-6 parts of magnesium sulfate, trace element
3-5 parts, 2-4 parts of cross-linked chitosan, 2 parts of sodium dehydroacetate.
Described, cross-linked chitosan is as made from following methods：
1) chitosan is added in into the aqueous acetic acid of volume fraction 1-1.8%, stirring and dissolving adjusts pH to 5, obtains shell and gather
Glycogen feed liquid；
2) Tween 80 is added in chitosan material liquid, stirs 20-30min, add in ferric sulfate while stirring, continue to stir
10min stands 20-40min after the completion of stirring, obtains emulsion；
3) the tripolyphosphate sodium water solution of volume fraction 1.5-2% is added in emulsion, stirs 5-10min, 70 DEG C true
Sky is dry to be less than 5wt% to moisture, obtains cross-linked chitosan.
Described, the addition quality of chitosan is calculated as 0.04g/mL with the volume of aqueous acetic acid.
Described, the addition of Tween 80 is the 3-5% of chitosan material liquid weight；The addition of the ferric sulfate is shell
The 4.5-5.5% of glycan material liquid weight.
Described, the volume ratio of tripolyphosphate sodium water solution and emulsion is 0.5-1.5：10.
Described, trace element is chelating amino acids manganese and chelating amino acids boron according to 1：Made from the weight ratio of 0.6-1.
A kind of manufacturing method of multielement paddy rice-dedicated fertilizer, is as made from following steps：
1) feces of livestock and poultry and humic acid are smashed it through into 50 mesh sieve, obtains powder 1；
2) 30 mesh sieve is crossed after grinding urea, monoammonium phosphate, potassium dihydrogen phosphate potassium chloride, boric acid and magnesium sulfate, is added
Enter plant ash and trace element, be uniformly mixed, obtain powder 2；
3) powder 1, powder 2, cross-linked chitosan and sodium dehydroacetate are mixed, is granulated into rotary drum granulator, be granulated temperature
It is 50 ± 2 DEG C to spend, granulation time 6min；Adding in steam increase granulation material liquid phase and temperature in rotary drum granulator simultaneously makes
Its reunion granulating is dried under the conditions of 80 ± 2 DEG C, is cooled to 40 DEG C hereinafter, screening, is made the multielement rice that grain size is 3-4mm
Special fertilizer.
Beneficial effects of the present invention：
1. multielement paddy rice-dedicated fertilizer prepared by the present invention has comprehensive nutrition, increasing both production and income, improves plant recovery of nutrient, fills
Divide the excellent properties for meeting rice nutrient demand, single-dose application meets the needs of entire growth period duration of rice, saves manpower, may be used also
To improve soil aeration and inhale fertile water retention property, promote rice strain robust growth, significantly improve yield and quality of rice.
2. cross-linked chitosan and the sodium dehydroacetate synergistic effect of the present invention, can keep fertilizer slowly enduringly to release
Come, reduce fertilizer leaching loss, while supplement ferro element, the synthesis to rice chlorophyll enhances photosynthesis, improving quality hair
Wave important function.
3. the manufacturing method of the present invention is simple and practicable, operating cost is low, has a vast market application prospect.
Specific embodiment
With reference to specific embodiment, the present invention will be further described.
Embodiment 1
A kind of multielement paddy rice-dedicated fertilizer is as made from the raw material of following parts by weight：70 parts of feces of livestock and poultry, humic acid 35
Part, 25 parts of plant ash, 45 parts of urea, 20 parts of monoammonium phosphate, 35 parts of potassium dihydrogen phosphate, 25 parts of potassium chloride, 6 parts of boric acid, magnesium sulfate 5
Part, 4 parts of trace element, 3 parts of cross-linked chitosan, 2 parts of sodium dehydroacetate.
Described, cross-linked chitosan is as made from following methods：
1) chitosan is added in into the aqueous acetic acid of volume fraction 1.4%, stirring and dissolving adjusts pH to 5, obtains chitosan
Material liquid；
2) Tween 80 is added in chitosan material liquid, stirs 25min, add in ferric sulfate while stirring, continue to stir
10min stands 30min after the completion of stirring, obtains emulsion；
3) the tripolyphosphate sodium water solution of volume fraction 1.8% is added in emulsion, stirs 8min, 70 DEG C of vacuum drying
To moisture less than 5wt%, cross-linked chitosan is obtained.
Described, the addition quality of chitosan is calculated as 0.04g/mL with the volume of aqueous acetic acid.
Described, the addition of Tween 80 is the 4% of chitosan material liquid weight；The addition of the ferric sulfate is gathered for shell
The 5% of glycogen feed liquid weight.
Described, the volume ratio of tripolyphosphate sodium water solution and emulsion is 1：10.
Described, trace element is chelating amino acids manganese and chelating amino acids boron according to 1：Made from 0.8 weight ratio.
A kind of manufacturing method of multielement paddy rice-dedicated fertilizer, is as made from following steps：
1) feces of livestock and poultry and humic acid are smashed it through into 50 mesh sieve, obtains powder 1；
2) 30 mesh sieve is crossed after grinding urea, monoammonium phosphate, potassium dihydrogen phosphate potassium chloride, boric acid and magnesium sulfate, is added
Enter plant ash and trace element, be uniformly mixed, obtain powder 2；
3) powder 1, powder 2, cross-linked chitosan and sodium dehydroacetate are mixed, is granulated into rotary drum granulator, be granulated temperature
It is 50 ± 2 DEG C to spend, granulation time 6min；Adding in steam increase granulation material liquid phase and temperature in rotary drum granulator simultaneously makes
Its reunion granulating is dried under the conditions of 80 ± 2 DEG C, is cooled to 40 DEG C hereinafter, screening, is made the multielement rice that grain size is 3-4mm
Special fertilizer.
Embodiment 2
A kind of multielement paddy rice-dedicated fertilizer is as made from the raw material of following parts by weight：60 parts of feces of livestock and poultry, humic acid 40
Part, 30 parts of plant ash, 40 parts of urea, 25 parts of monoammonium phosphate, 30 parts of potassium dihydrogen phosphate, 20 parts of potassium chloride, 7 parts of boric acid, magnesium sulfate 6
Part, 5 parts of trace element, 4 parts of cross-linked chitosan, 2 parts of sodium dehydroacetate.
Described, cross-linked chitosan is as made from following methods：
1) chitosan is added in into the aqueous acetic acid of volume fraction 1%, stirring and dissolving adjusts pH to 5, obtains chitosan original
Feed liquid；
2) Tween 80 is added in chitosan material liquid, stirs 30min, add in ferric sulfate while stirring, continue to stir
10min stands 20min after the completion of stirring, obtains emulsion；
3) the tripolyphosphate sodium water solution of volume fraction 1.5% is added in emulsion, stirs 5min, 70 DEG C of vacuum drying
To moisture less than 5wt%, cross-linked chitosan is obtained.
Described, the addition quality of chitosan is calculated as 0.04g/mL with the volume of aqueous acetic acid.
Described, the addition of Tween 80 is the 3% of chitosan material liquid weight；The addition of the ferric sulfate is gathered for shell
The 5.5% of glycogen feed liquid weight.
Described, the volume ratio of tripolyphosphate sodium water solution and emulsion is 0.5：10.
Described, trace element is chelating amino acids manganese and chelating amino acids boron according to 1：Made from 1 weight ratio.
A kind of manufacturing method of multielement paddy rice-dedicated fertilizer, is as made from following steps：
1) feces of livestock and poultry and humic acid are smashed it through into 50 mesh sieve, obtains powder 1；
2) 30 mesh sieve is crossed after grinding urea, monoammonium phosphate, potassium dihydrogen phosphate potassium chloride, boric acid and magnesium sulfate, is added
Enter plant ash and trace element, be uniformly mixed, obtain powder 2；
3) powder 1, powder 2, cross-linked chitosan and sodium dehydroacetate are mixed, is granulated into rotary drum granulator, be granulated temperature
It is 50 ± 2 DEG C to spend, granulation time 6min；Adding in steam increase granulation material liquid phase and temperature in rotary drum granulator simultaneously makes
Its reunion granulating is dried under the conditions of 80 ± 2 DEG C, is cooled to 40 DEG C hereinafter, screening, is made the multielement rice that grain size is 3-4mm
Special fertilizer.
Embodiment 3
A kind of multielement paddy rice-dedicated fertilizer is as made from the raw material of following parts by weight：80 parts of feces of livestock and poultry, humic acid 30
Part, 20 parts of plant ash, 50 parts of urea, 15 parts of monoammonium phosphate, 40 parts of potassium dihydrogen phosphate, 30 parts of potassium chloride, 5 parts of boric acid, magnesium sulfate 4
Part, 3 parts of trace element, 2 parts of cross-linked chitosan, 2 parts of sodium dehydroacetate.
Described, cross-linked chitosan is as made from following methods：
1) chitosan is added in into the aqueous acetic acid of volume fraction 1.8%, stirring and dissolving adjusts pH to 5, obtains chitosan
Material liquid；
2) Tween 80 is added in chitosan material liquid, stirs 20min, add in ferric sulfate while stirring, continue to stir
10min stands 40min after the completion of stirring, obtains emulsion；
3) the tripolyphosphate sodium water solution of volume fraction 2% is added in emulsion, stirs 10min, 70 DEG C of vacuum drying
To moisture less than 5wt%, cross-linked chitosan is obtained.
Described, the addition quality of chitosan is calculated as 0.04g/mL with the volume of aqueous acetic acid.
Described, the addition of Tween 80 is the 5% of chitosan material liquid weight；The addition of the ferric sulfate is gathered for shell
The 4.5% of glycogen feed liquid weight.
Described, the volume ratio of tripolyphosphate sodium water solution and emulsion is 1.5：10.
Described, trace element is chelating amino acids manganese and chelating amino acids boron according to 1：Made from 0.6 weight ratio.
A kind of manufacturing method of multielement paddy rice-dedicated fertilizer, is as made from following steps：
1) feces of livestock and poultry and humic acid are smashed it through into 50 mesh sieve, obtains powder 1；
2) 30 mesh sieve is crossed after grinding urea, monoammonium phosphate, potassium dihydrogen phosphate potassium chloride, boric acid and magnesium sulfate, is added
Enter plant ash and trace element, be uniformly mixed, obtain powder 2；
3) powder 1, powder 2, cross-linked chitosan and sodium dehydroacetate are mixed, is granulated into rotary drum granulator, be granulated temperature
It is 50 ± 2 DEG C to spend, granulation time 6min；Adding in steam increase granulation material liquid phase and temperature in rotary drum granulator simultaneously makes
Its reunion granulating is dried under the conditions of 80 ± 2 DEG C, is cooled to 40 DEG C hereinafter, screening, is made the multielement rice that grain size is 3-4mm
Special fertilizer.
Comparative example 1
A kind of multielement paddy rice-dedicated fertilizer is as made from the raw material of following parts by weight：70 parts of feces of livestock and poultry, humic acid 35
Part, 25 parts of plant ash, 45 parts of urea, 20 parts of monoammonium phosphate, 35 parts of potassium dihydrogen phosphate, 25 parts of potassium chloride, 6 parts of boric acid, magnesium sulfate 5
Part, micro- 4 parts, 2 parts of sodium dehydroacetate.
Remaining is the same as embodiment 1.
Comparative example 2
A kind of multielement paddy rice-dedicated fertilizer is as made from the raw material of following parts by weight：70 parts of feces of livestock and poultry, humic acid 35
Part, 25 parts of plant ash, 45 parts of urea, 20 parts of monoammonium phosphate, 35 parts of potassium dihydrogen phosphate, 25 parts of potassium chloride, 6 parts of boric acid, magnesium sulfate 5
Part, micro- 4 parts, 3 parts of cross-linked chitosan.
Remaining is the same as embodiment 1.
Comparative example 3
A kind of multielement paddy rice-dedicated fertilizer is as made from the raw material of following parts by weight：70 parts of feces of livestock and poultry, humic acid 35
Part, 25 parts of plant ash, 45 parts of urea, 20 parts of monoammonium phosphate, 35 parts of potassium dihydrogen phosphate, 25 parts of potassium chloride, 6 parts of boric acid, magnesium sulfate 5
Part, 4 parts of trace element.
Remaining is the same as embodiment 1.
Potting manure trial
For trying rice：Gold excellent 297.
For trying soil：Light water paddy soil, basic physical and chemical pH5.4, organic matter 20.5g/kg, full nitrogen
1.04g/kg, full phosphorus 0.42g/kg, full potassium 24.3g/kg.
Test method：8 processing of experiment setting, each processing 3 are parallel.Handle 1-3：The embodiment of the present invention is applied respectively
Multielement paddy rice-dedicated fertilizer prepared by 1-3, total amount of application 100kg/ mus；Handle 4-6：Comparative example 1-3 systems of the present invention are applied respectively
Standby multielement paddy rice-dedicated fertilizer, total amount of application 100kg/ mus；Processing 7：Conventional fertilizer application, purely inorganic chemical fertilizer, base manure mu apply urea
35kg, calcium magnesium phosphate 43kg, potassium chloride 22kg potassium chloride, wherein nitrogenous fertilizer 60% make base manure application, and 40% makees top dressing, phosphorus potash fertilizer one
Secondary property applies；Processing 8：It does not apply fertilizer.
Using pot experiment, 60cm × 100cm plastic tubs are selected, the wind desiceted soil 20Kg of built-in 10 mesh of mistake sieve inserts 45 per basin
The root and stem of certain plants, the spacing inserted per the root and stem of certain plants above and below 2 seedlings, seedling or so is 10cm, by Rice Cropping conventional method management, is received after rice maturation by basin
The production of species test meter is obtained, result of the test is as shown in table 1.
1 potting manure trial result of table
As shown in Table 1, using multielement paddy rice-dedicated fertilizer growing state prepared by embodiment 1-3 from average plant height, average
Spike length, spike number, bear fruit grains and mass of 1000 kernel various aspects are obviously higher than remaining each processing group.
Crop field manure trial
For field experiment in 2016, we, which choose, was located at one piece of Suiping County of Henan Province Yushan town Rice Cropping field, soil
Basic physical and chemical：PH5.3, organic matter 26.9g/kg, full nitrogen 1.6g/kg, full phosphorus 0.75g/kg, full potassium 16.7g/kg.
Test method：8 processing of experiment setting, each processing 3 are parallel.Handle 1-3：The embodiment of the present invention is applied respectively
Multielement paddy rice-dedicated fertilizer prepared by 1-3, total amount of application 100kg/ mus；Handle 4-6：Comparative example 1-3 systems of the present invention are applied respectively
Standby multielement paddy rice-dedicated fertilizer, total amount of application 100kg/ mus；Processing 7：Conventional fertilizer application, purely inorganic chemical fertilizer, base manure mu apply urea
35kg, calcium magnesium phosphate 43kg, potassium chloride 22kg potassium chloride, wherein nitrogenous fertilizer 60% make base manure application, and 40% makees top dressing, phosphorus potash fertilizer one
Secondary property applies；Processing 8：It does not apply fertilizer.Field management, top dressing and the prevention and control of plant diseases, pest control are carried out by Rice Cropping usual manner, experiment knot
Fruit is as shown in table 2.
2 crop field manure trial result of the test of table
Although above the present invention is described in detail with a general description of the specific embodiments,
On the basis of the present invention, it can be made some modifications or improvements, this will be apparent to those skilled in the art.Cause
This, these modifications or improvements, belong to the scope of protection of present invention without departing from theon the basis of the spirit of the present invention.
Claims (7)
1. a kind of multielement paddy rice-dedicated fertilizer, which is characterized in that be as made from the raw material of following parts by weight：Feces of livestock and poultry 60-
80 parts, 30-40 parts of humic acid, 20-30 parts of plant ash, 40-50 parts of urea, 15-25 parts of monoammonium phosphate, potassium dihydrogen phosphate 30-40
Part, 20-30 parts of potassium chloride, 5-7 parts of boric acid, 4-6 parts of magnesium sulfate, 3-5 parts of trace element, 2-4 parts of cross-linked chitosan, dehydroacetic acid
2 parts of sodium.
2. multielement paddy rice-dedicated fertilizer according to claim 1, which is characterized in that the cross-linked chitosan is by following methods
It is obtained：
1) chitosan is added in into the aqueous acetic acid of volume fraction 1-1.8%, stirring and dissolving adjusts pH to 5, obtains chitosan original
Feed liquid；
2) Tween 80 is added in chitosan material liquid, stirs 20-30min, add in ferric sulfate while stirring, continue to stir
10min stands 20-40min after the completion of stirring, obtains emulsion；
3) the tripolyphosphate sodium water solution of volume fraction 1.5-2% is added in emulsion, stirs 5-10min, 70 DEG C of vacuum are done
It is dry to be less than 5wt% to moisture, obtain cross-linked chitosan.
3. multielement paddy rice-dedicated fertilizer according to claim 2, which is characterized in that the addition quality of the chitosan is with acetic acid
The volume of aqueous solution is calculated as 0.04g/mL.
4. multielement paddy rice-dedicated fertilizer according to claim 2, which is characterized in that the addition of the Tween 80 is chitosan
The 3-5% of material liquid weight；The addition of the ferric sulfate is the 4.5-5.5% of chitosan material liquid weight.
5. multielement paddy rice-dedicated fertilizer according to claim 2, which is characterized in that the tripolyphosphate sodium water solution and emulsification
The volume ratio of liquid is 0.5-1.5：10.
6. multielement paddy rice-dedicated fertilizer according to claim 1, which is characterized in that the trace element is chelating amino acids manganese
With chelating amino acids boron according to 1：Made from the weight ratio of 0.6-1.
7. a kind of manufacturing method of any one of claim 1-6 multielement paddy rice-dedicated fertilizers, which is characterized in that be by with
Made from lower step：
1) feces of livestock and poultry and humic acid are smashed it through into 50 mesh sieve, obtains powder 1；
2) 30 mesh sieve is crossed after grinding urea, monoammonium phosphate, potassium dihydrogen phosphate potassium chloride, boric acid and magnesium sulfate, adds in grass
Wood ash and trace element are uniformly mixed, obtain powder 2；
3) powder 1, powder 2, cross-linked chitosan and sodium dehydroacetate are mixed, is granulated into rotary drum granulator, prilling temperature is
50 ± 2 DEG C, granulation time 6min；Adding in steam increase granulation material liquid phase and temperature in rotary drum granulator simultaneously makes its group
Grain is polymerized to, is dried under the conditions of 80 ± 2 DEG C, is cooled to 40 DEG C hereinafter, screening, it is special to be made the multielement rice that grain size is 3-4mm
Fertilizer.
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Cited By (3)
| Publication number | Priority date | Publication date | Assignee | Title |
|---|---|---|---|---|
| CN108503496A (en) * | 2018-07-12 | 2018-09-07 | 安徽袁粮水稻产业有限公司 | A kind of paddy rice-dedicated fertilizer and preparation method thereof |
| CN112608184A (en) * | 2020-12-23 | 2021-04-06 | 西南科技大学 | Preparation method of ecological environment-friendly special fertilizer for rice |
| CN113173820A (en) * | 2021-05-26 | 2021-07-27 | 江西省农业科学院土壤肥料与资源环境研究所 | Fertilizer special for direct seeding of rice, direct seeding method of rice and direct seeding equipment of rice |
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| CN108503496A (en) * | 2018-07-12 | 2018-09-07 | 安徽袁粮水稻产业有限公司 | A kind of paddy rice-dedicated fertilizer and preparation method thereof |
| CN112608184A (en) * | 2020-12-23 | 2021-04-06 | 西南科技大学 | Preparation method of ecological environment-friendly special fertilizer for rice |
| CN112608184B (en) * | 2020-12-23 | 2022-03-04 | 西南科技大学 | Preparation method of ecological environment-friendly special fertilizer for rice |
| CN113173820A (en) * | 2021-05-26 | 2021-07-27 | 江西省农业科学院土壤肥料与资源环境研究所 | Fertilizer special for direct seeding of rice, direct seeding method of rice and direct seeding equipment of rice |
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