CN104341242A - Special long-acting slow-release fertilizer for rice - Google Patents
Special long-acting slow-release fertilizer for rice Download PDFInfo
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- CN104341242A CN104341242A CN201410560493.4A CN201410560493A CN104341242A CN 104341242 A CN104341242 A CN 104341242A CN 201410560493 A CN201410560493 A CN 201410560493A CN 104341242 A CN104341242 A CN 104341242A
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- rice
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- paddy rice
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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
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- C—CHEMISTRY; METALLURGY
- C05—FERTILISERS; MANUFACTURE THEREOF
- C05B—PHOSPHATIC FERTILISERS
- C05B1/00—Superphosphates, i.e. fertilisers produced by reacting rock or bone phosphates with sulfuric or phosphoric acid in such amounts and concentrations as to yield solid products directly
- C05B1/02—Superphosphates
-
- 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
-
- 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
- C05G3/90—Mixtures of one or more fertilisers with additives not having a specially fertilising activity for affecting the nitrification of ammonium compounds or urea in the soil
-
- 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
- C05G5/00—Fertilisers characterised by their form
- C05G5/30—Layered or coated, e.g. dust-preventing coatings
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- Life Sciences & Earth Sciences (AREA)
- Chemical & Material Sciences (AREA)
- Organic Chemistry (AREA)
- Pest Control & Pesticides (AREA)
- Soil Sciences (AREA)
- Fertilizers (AREA)
Abstract
The invention discloses a special long-acting slow-release fertilizer for rice, of which the nutritive elements comprise nitrogen, phosphorus, potassium, secondary and minor elements, beneficial nutrients, organic matters, a non-coating slow-release agent and a soil conditioner. The raw materials for providing the nutritive elements comprise urea, ammonium chloride, ammonium dihydrogen phosphate, a calcium magnesia phosphate fertilizer, ordinary superphosphate, potassium chloride, zinc sulfate monohydrate, organic matters, a non-coating slow-release agent and a soil conditioner. The special long-acting slow-release fertilizer for rice can implement slow-release, and is effective for the whole process after single-dose application; and thus, the special long-acting slow-release fertilizer for rice can satisfy the nutrient demands of rice in the whole growth period after single-dose application. The special long-acting slow-release fertilizer for rice combines utilization and maintenance of soil, can supply nutrients, can also loosen the soil and enhance the soil fertility, has higher utilization ratio, enhances the stress tolerance of rice, lowers the agricultural production risks, balances the nutrients, implements scientific fertilizer application, has the advantages of complete nutrients, multiple functions and scientific formula, and solves the problems caused by purposeless fertilizer application, unbalanced fertilizer application and the like.
Description
Technical field
The present invention relates to a kind of chemical fertilizer, specifically a kind of long-acting slow-release paddy rice-dedicated fertilizer.
Background technology
Present stage, apply fertilizer on the paddy rice subject matter that exists of peasant has blindly fertilising, partially fertilise, unreasonable fertilising, fertilizing method improper, concrete manifestation is in the following areas: (1) heavy dressing chemical fertilizer, gently execute or not organic fertilizer, not only destroy Soil structure, reduce the feeder capability of soil, have impact on again the quality of rice; (2) partially execute, heavy nitrogen application, phosphorus potash fertilizer drop on the low side, nitrogen phosphoris and potassium fertilizer ratio is unreasonable; (3) secondary and micro-element fertilizers drops into wretched insufficiency, and cause nutritive element serious unbalance, physiological and infectious disease are often sent out multiple, directly affect rice yield and quality; (4) use unreasonable, main manifestations in the following areas: method is improper, topdress generally spread fertilizer over the fields, top application, cause fertilizer loss serious, utilization ratio is low; Rate of fertilizer application is excessive, has both reduced the utilization ratio of fertilizer, paddy rice for want of other nutritive element and poor growth again, and the amount of application of many peasant households just by strengthening urea promotes paddy growth, not only adds production cost, increases again water and soil pollution; To apply fertilizer not science, topdress too much, opportunity of topdressing holds inaccurate, forms overgrowing in early stage, envelope row too early, the phenomenon of later stage early ageing.Unreasonable, unscientific fertilising, not only cause fertilizer waste, soil fertility decline, soil compaction, production cost to increase, more cause agricultural environment pollution, quality of agricultural product declines, and meanwhile, also increases agricultural product security risk.
In recent years, composite fertilizer, Chemical Mixed Fertilizer, formula fertilizer etc. are used widely, but because national standard has only made Compulsory Feature to N P and K three elements, requirement is not done to other nutrient and material, therefore, the composite fertilizer on domestic market, Chemical Mixed Fertilizer, the following problem of formula fertilizer ubiquity: (1) only has nitrogen, phosphorus, potassium three kinds of nutrients, general not containing medium trace element nutrient and beneficial element nutrient, and pursue high density, high-content simply, nutrient is pure and pure, also can add other nutrient at all; (2) do not add organic matter, humic acid, trying hard to keep over the ground, it is unconcerned to protect with Sustainable development; (3) specific aim of filling a prescription is not strong, is usually to determine formula, batching according to cost; (4) repeatedly apply fertilizer, Common compound fertilizer fertilizer efficiency period is shorter, except a base fertilizer, generally also will topdress 1-2 time, and peasant is difficult to hold opportunity of topdressing, and topdresses improper, usually causes remaining green when it is due to become yellow and ripe late-maturing, lodging, sick worm causes harm seriously, has high yield appearance without high yield harvest.
In order to fundamentally solve blindly fertilising, partially fertilise, unreasonable fertilising, fertilizing method problem improperly; be badly in need of a kind of stable high yield, high-quality and efficient that can realize Rice Production; improve utilization rate of fertilizer; make rational use of resources; preserve the ecological environment; improvement soil, culture fertility, promote the dedicated fertilizer of agricultural sustainable development.
Summary of the invention
The object of the present invention is to provide a kind of nutritive equilibrium, improve utilization rate of fertilizer, land used increases soil fertility the long-acting slow-release paddy rice-dedicated fertilizer combined, to solve the problem proposed in above-mentioned background technology.
For achieving the above object, the invention provides following technical scheme:
A kind of long-acting slow-release paddy rice-dedicated fertilizer, the nutritive element of its formula comprises according to weight part: N P and K 30-40 part, medium trace element 9.55-11.55 part, useful nutrient 3.6-4.0 part, organic 2.5-6.5 part, non-parcel sustained release dosage 3.6-4.6 part, soil conditioner 0.28-0.32 part.
As the further scheme of the present invention: the formula nutritional element of described N P and K comprises according to weight part: nitrogen 16-23 part, phosphorus 5-6 part, potassium 9-14 part.
As the further scheme of the present invention: the formula nutritional element of described medium trace element comprises according to weight part: calcium 2.5-6.5 part, magnesium 1.6-1.8 part, sulphur 1.3-2.0 part, zinc 0.65-0.75 part.
As the further scheme of the present invention: described useful nutrient is silicon-dioxide.
As the present invention's further scheme: described long-acting slow-release paddy rice-dedicated fertilizer, the raw material of its formula nutritional element is provided to comprise according to weight part: urea 200-385kg, ammonium chloride 50-250kg, phosphorus ammonium 25-100kg, fused(calcium magnesium)phosphate 90-100kg, normal superphosphate 100-200kg, Repone K 100-240kg, Zinc Sulphate Monohydrate 15-20kg, organic 25-65kg, non-parcel sustained release dosage 7-8kg, soil conditioner 2.8-3.2kg, wherein urea nitrogenous 46.3%, ammonium chloride nitrogenous 25.4%, fused(calcium magnesium)phosphate phosphorous 16%, calcic 20%, containing magnesium 18%, siliceous 40%, normal superphosphate phosphorous 12%, calcic 28%, sulfur-bearing 13%, Repone K is containing potassium 60%, Zinc Sulphate Monohydrate is containing zinc 35%.
The technological process of production of described long-acting slow-release paddy rice-dedicated fertilizer, comprises the steps: (1) feed proportioning: take each raw material according to weight part; (2) raw material stirring: by even for the raw material stirring prepared; (3) raw material granulation: the raw material stirred is sent into granulator granulation; (4) particle is dried: the particle made by tablets press sends into dryer, and the moisture included by particle is dried; (5) particle once cools: cooled by the fertiliser granulates after drying; (6) the elementary classification of particle: by the gradation after cooled, underproof particle is through pulverizing granulation again; (7) cooling twice is entered; (8) finished product overlay film: product qualified for classification is carried out painting clothing coating and obtain finished product; (9) finished product packing: finished product pack is placed on ventilation and preserves.
Compared with prior art, the invention has the beneficial effects as follows:
The present invention is directed to different areas, different rice varieties is made to measure, long-acting slow-release, realize single-dose application pipe omnidistance, single-dose application can meet the nutrient demand of paddy rice whole breeding time, no longer supplement other nutrient, also no longer topdress, fertilizer efficiency 20-30 days longer than general composite fertilizer fertilizer efficiency; Land used is increased soil fertility combination, promotes agricultural sustainable development, both provides nutrient, again chessom, culture fertility; Improve utilization rate of fertilizer, make rational use of resources, reduce fertilizer loss, decomposition, volatilization, the loss such as fixing, make full use of resource, alleviate environmental pollution; Strengthen the anti-adversity ability of paddy rice, reduce agriculture production risk, particularly strengthen resistant to lodging, Resistant, the drought-resistant ability of paddy rice, improve the yielding ability of paddy rice, guarantee rice high yield stable yields, effectively evade agriculture production risk; Balanced nutrients, realizes applying fertilizers scientifically, full nutrition, multi-functional, scientific formula, solves the problem that blindly fertilising, partially fertilise etc. bring.
Embodiment
Be described in more detail below in conjunction with the technical scheme of embodiment to this patent.
Main the principles of science of foundation of the present invention is Formula fertilization by soil testing principle, fertilization compositions based on earth measurement be with nutrient theory of returns, law of minimum nourishment, rule of equal importance, can not law of substitution, fertilizer law of diminishing returns and factor integration effect rule for theoretical foundation, to determine that the total fertilization amount of Different Nutrients and proportioning are for main contents.For giving full play to the maximum yield increase effect of fertilizer, fertilising must be combined with the factors selecting breeding, rich water quality management, planting density, cropping system and climate change etc. to affect fertilizer efficiency.
Embodiment 1
A technological process of production for long-acting slow-release paddy rice-dedicated fertilizer, comprises the steps: (1) feed proportioning: take urea 310kg, ammonium chloride 125kg, phosphorus ammonium 50kg, fused(calcium magnesium)phosphate 100kg, normal superphosphate 120kg, Repone K 200kg, Zinc Sulphate Monohydrate 20kg, organic 65kg, non-parcel sustained release dosage 7kg and soil conditioner 3.0kg according to weight part; (2) raw material stirring: the even fertilizer efficiency content raw material stirring prepared evenly being improved fertiliser granulates entirety; (3) raw material granulation: the raw material stirred is sent into granulator granulation; (4) particle is dried: the particle made by tablets press sends into dryer, and the moisture included by particle is dried, and increases granule strength, is convenient to preserve; (5) particle once cools: cooled by the fertiliser granulates after drying; (6) the elementary classification of particle: by the gradation after cooled, underproof particle is through pulverizing granulation again; (7) cooling twice is entered; (8) finished product overlay film: product qualified for classification is carried out painting clothing coating and obtain finished product; (9) finished product packing: finished product pack is placed on ventilation and preserves.
Embodiment 2
A technological process of production for long-acting slow-release paddy rice-dedicated fertilizer, comprises the steps: (1) feed proportioning: take urea 385kg, ammonium chloride 50kg, phosphorus ammonium 80kg, fused(calcium magnesium)phosphate 95kg, normal superphosphate 100kg, Repone K 234kg, Zinc Sulphate Monohydrate 18kg, organic 27kg, non-parcel sustained release dosage 8kg and soil conditioner 3kg according to weight part; (2) raw material stirring: the even fertilizer efficiency content raw material stirring prepared evenly being improved fertiliser granulates entirety; (3) raw material granulation: the raw material stirred is sent into granulator granulation; (4) particle is dried: the particle made by tablets press sends into dryer, and the moisture included by particle is dried, and increases granule strength, is convenient to preserve: (5) particle once cools: cooled by the fertiliser granulates after drying; (6) the elementary classification of particle: by the gradation after cooled, underproof particle is through pulverizing granulation again; (7) cooling twice is entered; (8) finished product overlay film: product qualified for classification is carried out painting clothing coating and obtain finished product; (9) finished product packing: finished product pack is placed on ventilation and preserves.
Embodiment 3
A technological process of production for long-acting slow-release paddy rice-dedicated fertilizer, comprises the steps: (1) feed proportioning: take urea 200kg, ammonium chloride 250kg, phosphorus ammonium 25 kg, fused(calcium magnesium)phosphate 100kg, normal superphosphate 200kg, Repone K 150kg, Zinc Sulphate Monohydrate 20kg, organic 44kg, non-parcel sustained release dosage 8kg and soil conditioner 3.0kg according to weight part; (2) raw material stirring: the even fertilizer efficiency content raw material stirring prepared evenly being improved fertiliser granulates entirety; (3) raw material granulation: the raw material stirred is sent into granulator granulation; (4) particle is dried: the particle made by tablets press sends into dryer, and the moisture included by particle is dried, and increases granule strength, is convenient to preserve; (5) particle once cools: cooled by the fertiliser granulates after drying; (6) the elementary classification of particle: by the gradation after cooled, underproof particle is through pulverizing granulation again; (7) cooling twice is entered; (8) finished product overlay film: product qualified for classification is carried out painting clothing coating and obtain finished product; (9) finished product packing: finished product pack is placed on ventilation and preserves.
Use the long-acting slow-release paddy rice-dedicated fertilizer that above embodiment is produced, utilization rate of fertilizer is than Common compound fertilizer height 5-8%, and utilization rate of fertilizer improves 15-30%.
The long-acting slow-release paddy rice-dedicated fertilizer using above embodiment to produce enhances paddy rice anti contravariance, 2012, Shayang County, Jingmen, Hubei once 1000 mu, market town demonstration sheet uses none lodging of this product, the same kind of surrounding, same to date of seeding, the rice lodging nearly 60% that rate of fertilizer application is close; Shayang County, Jingmen, Hubei in 2013 is market town, Hou Gang town, the investigation of Shi Lipu town agricultural technology service center once, and in 3 demonstration sheets, same kind, paddy rice with date of seeding, use rice blast disease of the present invention to refer to than Common compound fertilizer decline 20.1-36.3%; Paddy rice diseased plant rate decline 9.4-14.3%.
The long-acting slow-release paddy rice-dedicated fertilizer using above embodiment to produce realizes the stable high yield of paddy rice, check and accept according to fertilization compositions based on earth measurement project expert group of Hubei Province, 28-29 day in August, 2013 in Shayang County, Jingmen City, Hubei Province, Dang Yang county of Yichang City and 5, small towns, 5, Jingzhou District, Jingzhou City point survey product on the spot, per mu yield is all more than 700kg, compared with Common compound fertilizer, any is shown no increases in output, and 4 some volume increase, on average increase production 13.7%.
The long-acting slow-release paddy rice-dedicated fertilizer cost-saving synergistic more using above embodiment to produce, after using this product 1 year at least reduces laxative 1-2 time, and by a drug 20 yuan, recruitment 0.3, adds recruitment 0.2 of topdressing, 70 yuan, abridged edition; By every mu of volume increase 50 kilograms, add up to and increase income more than 190 yuan.
The present invention is high in technological content, product effect is unique, make to measure for different areas, different rice varieties, long-acting slow-release, realize single-dose application pipe omnidistance, single-dose application can meet the nutrient demand of paddy rice whole breeding time, no longer supplements other nutrient, also no longer topdress, fertilizer efficiency 20-30 days longer than general composite fertilizer fertilizer efficiency; Land used is increased soil fertility combination, promotes agricultural sustainable development, both provides nutrient, again chessom, culture fertility; Improve utilization rate of fertilizer, make rational use of resources, reduce fertilizer loss, decomposition, volatilization, the loss such as fixing, make full use of resource, alleviate environmental pollution; Strengthen the anti-adversity ability of paddy rice, reduce agriculture production risk, particularly strengthen resistant to lodging, Resistant, the drought-resistant ability of paddy rice, improve the yielding ability of paddy rice, guarantee rice high yield stable yields, effectively evade agriculture production risk; Balanced nutrients, realizes applying fertilizers scientifically, full nutrition, multi-functional, scientific formula, solves the problem that blindly fertilising, partially fertilise etc. bring.
Above the better embodiment of this patent is explained in detail, but this patent is not limited to above-mentioned embodiment, in the ken that one skilled in the relevant art possesses, various change can also be made under the prerequisite not departing from this patent aim.
Claims (6)
1. a long-acting slow-release paddy rice-dedicated fertilizer, it is characterized in that, the nutritive element of its formula comprises according to weight part: N P and K 30-40 parts, medium trace element 9.55-11.55 part, useful nutrient 3.6-4.0 part, organic 2.5-6.5 part, non-parcel sustained release dosage 3.6-4.6 part, soil conditioner 0.28-0.32 part.
2. long-acting slow-release paddy rice-dedicated fertilizer according to claim 1, is characterized in that, the formula nutritional element of described N P and K comprises according to weight part: nitrogen 16-23 part, phosphorus 5-6 part, potassium 9-14 part.
3. long-acting slow-release paddy rice-dedicated fertilizer according to claim 1, is characterized in that, the formula nutritional element of described medium trace element comprises according to weight part: calcium 2.5-6.5 part, magnesium 1.6-1.8 part, sulphur 1.3-2.0 part, zinc 0.65-0.75 part.
4. long-acting slow-release paddy rice-dedicated fertilizer according to claim 1, is characterized in that, described useful nutrient is silicon-dioxide.
5. according to the long-acting slow-release paddy rice-dedicated fertilizer one of claim 1-4 Suo Shu, it is characterized in that, described long-acting slow-release paddy rice-dedicated fertilizer, the raw material of its formula nutritional element is provided to comprise according to weight part: urea 200-385kg, ammonium chloride 50-250kg, phosphorus ammonium 25-100kg, fused(calcium magnesium)phosphate 90-100kg, normal superphosphate 100-200kg, Repone K 150-240kg, Zinc Sulphate Monohydrate 15-20kg, organic 25-65kg, non-parcel sustained release dosage 7-8kg, soil conditioner 2.8-3.2kg, wherein urea nitrogenous 46.3%, ammonium chloride nitrogenous 25.4%, fused(calcium magnesium)phosphate phosphorous 16%, calcic 20%, containing magnesium 18%, siliceous 40%, normal superphosphate phosphorous 12%, calcic 28%, sulfur-bearing 13%, Repone K is containing potassium 60%, Zinc Sulphate Monohydrate is containing zinc 35%.
6. a technological process of production for the long-acting slow-release paddy rice-dedicated fertilizer adopting one of claim 1-5 described, comprises the steps: (1) feed proportioning: take each raw material according to weight part; (2) raw material stirring: by even for the raw material stirring prepared; (3) raw material granulation: the raw material stirred is sent into granulator granulation; (4) particle is dried: the particle made by tablets press sends into dryer, and the moisture included by particle is dried; (5) particle once cools: cooled by the fertiliser granulates after drying; (6) the elementary classification of particle: by the gradation after cooled, underproof particle is through pulverizing granulation again; (7) cooling twice is entered; (8) finished product overlay film: product qualified for classification is carried out painting clothing coating and obtain finished product; (9) finished product packing: finished product pack is placed on ventilation and preserves.
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| Application Number | Priority Date | Filing Date | Title |
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| CN201410560493.4A CN104341242A (en) | 2014-10-21 | 2014-10-21 | Special long-acting slow-release fertilizer for rice |
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| CN201410560493.4A CN104341242A (en) | 2014-10-21 | 2014-10-21 | Special long-acting slow-release fertilizer for rice |
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Cited By (8)
| Publication number | Priority date | Publication date | Assignee | Title |
|---|---|---|---|---|
| CN104909876A (en) * | 2015-05-20 | 2015-09-16 | 中国海洋石油总公司 | Special controlled-release fertilizer for paddy rice based on continuous cropping and planting of paddy rice and vegetables and preparation method of special controlled-release fertilizer |
| CN105646096A (en) * | 2016-03-10 | 2016-06-08 | 徐杰 | Selenium-rich slow release special rice fertilizer and preparation method thereof |
| CN107879841A (en) * | 2017-11-16 | 2018-04-06 | 来安县薜必英家庭农场 | A kind of paddy rice-dedicated fertilizer preparation method for improving utilization rate of fertilizer |
| CN109761703A (en) * | 2019-03-07 | 2019-05-17 | 湖北宜施壮农业科技有限公司 | A kind of multifunction long-acting slow-release rice fertilizer |
| CN109896896A (en) * | 2019-04-08 | 2019-06-18 | 中国水稻研究所 | A kind of liquid fertilizer and its method of administration improving rice drought tolerance |
| CN111184027A (en) * | 2020-03-15 | 2020-05-22 | 雷志刚 | Production method of inorganic pesticide for preventing and treating rice blast |
| CN113214021A (en) * | 2021-06-29 | 2021-08-06 | 黑龙江坤罡生物科技有限公司 | Technical production process of special fertilizer for rice lateral depth |
| CN113754498A (en) * | 2021-09-19 | 2021-12-07 | 安徽原谷公社生态农业科技有限公司 | Special yield-increasing slow-release fertilizer for rice breeding and preparation method thereof |
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Cited By (9)
| Publication number | Priority date | Publication date | Assignee | Title |
|---|---|---|---|---|
| CN104909876A (en) * | 2015-05-20 | 2015-09-16 | 中国海洋石油总公司 | Special controlled-release fertilizer for paddy rice based on continuous cropping and planting of paddy rice and vegetables and preparation method of special controlled-release fertilizer |
| CN105646096A (en) * | 2016-03-10 | 2016-06-08 | 徐杰 | Selenium-rich slow release special rice fertilizer and preparation method thereof |
| CN107879841A (en) * | 2017-11-16 | 2018-04-06 | 来安县薜必英家庭农场 | A kind of paddy rice-dedicated fertilizer preparation method for improving utilization rate of fertilizer |
| CN109761703A (en) * | 2019-03-07 | 2019-05-17 | 湖北宜施壮农业科技有限公司 | A kind of multifunction long-acting slow-release rice fertilizer |
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| CN109896896B (en) * | 2019-04-08 | 2022-06-24 | 中国水稻研究所 | Liquid fertilizer for improving drought tolerance of rice and application method thereof |
| CN111184027A (en) * | 2020-03-15 | 2020-05-22 | 雷志刚 | Production method of inorganic pesticide for preventing and treating rice blast |
| CN113214021A (en) * | 2021-06-29 | 2021-08-06 | 黑龙江坤罡生物科技有限公司 | Technical production process of special fertilizer for rice lateral depth |
| CN113754498A (en) * | 2021-09-19 | 2021-12-07 | 安徽原谷公社生态农业科技有限公司 | Special yield-increasing slow-release fertilizer for rice breeding and preparation method thereof |
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