CN102295482B - Composite rice seedling agent and preparation method thereof - Google Patents
Composite rice seedling agent and preparation method thereof Download PDFInfo
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- CN102295482B CN102295482B CN2010102100364A CN201010210036A CN102295482B CN 102295482 B CN102295482 B CN 102295482B CN 2010102100364 A CN2010102100364 A CN 2010102100364A CN 201010210036 A CN201010210036 A CN 201010210036A CN 102295482 B CN102295482 B CN 102295482B
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Abstract
The invention relates to a composite rice seedling agent and a preparation method thereof. The composite rice seedling agent comprises the following components based on 1000kg: 420-490kg of acidified coal slag, 100-150kg of sulfuric acid, 200-230kg of diammonium phosphate, 70-110kg of ammonium sulfate, 65-85kg of nitro humic acid, 30-40kg of rare earth, 27-35kg of potassium sulfate, 10-12kg of zinc sulfate and 8-10kg of iron sulfate. The composite rice seedling agent provided by the invention can be used for preventing and treating rice seedling blight and improving the disease-resistant capability and development quality of rice seedlings so that the rice seedlings can well thrive.
Description
Technical field
The present invention relates to the seedling cultivation of rice agent, specifically a kind of compound seedling cultivation of rice agent and preparation method thereof.
Background technology
For many years northeastward, the area, Inner Mongol, in the seedling cultivation of rice production process, seedling blight generally takes place, individual areas is comparatively serious, makes the large-area death of rice seedling, causing the rice field not have seedling can plant.Because of nursery stage mistake, the rice farming can only be purchased seedling in the strange land at high price, or changes the rice field into dry land, and loss is unavoidable.Nursery stage is not only wanted diseases prevention, and rich water consumption and management, also is very important.Have only the good of rice seedling, be only the prerequisite that prediction obtains high yield and bumper harvest then.According to preliminary investigation, a lot of areas in the seedling cultivation of rice production process, ubiquity variety of issues all, the rich water consumption is by experience substantially, sprays insecticide exactly in the diseases prevention aspect, and the peasant who has is seriously ill because of the growth of cereal crop seedlings, strengthened dosage, suppressed seedling development and growth so on the contrary, made that the result is just the contrary.Also there is part experience peasant household to be arranged at the growth of cereal crop seedlings initial stage, get agricultural chemicals less ready or spray the acids of dilution, edible acetin etc. to seedling, but drug effect obviously reduced.Therefore, these methods all can't suppress the generation of damping off effectively more than.
Summary of the invention
The present invention is exactly at the problems referred to above, provides a kind of and can prevent and treat seedling cultivation of rice phase damping off, improves the rice shoot resistance against diseases and grows quality, makes compound seedling cultivation of rice agent that rice seedling grows up strong and sturdy more and preparation method thereof.
In order to realize above-mentioned purpose of the present invention, the present invention adopts following technical scheme,
A kind of compound seedling cultivation of rice agent by 1000kg, wherein contains the cinder 420-490Kg after the acidifying, sulfuric acid 100-150Kg, diammonium phosphate 200-230Kg, ammonium sulfate 70-110Kg, nitro humic acid 65-85Kg, rare earth 30-40Kg, potassium sulphate 27-35Kg, zinc sulphate 10-12Kg, ferrous sulfate 8-10Kg.
The agent of growing seedlings of A type wherein contains the cinder 490Kg after the acidifying, sulfuric acid 100Kg, diammonium phosphate 200Kg, ammonium sulfate 70Kg, nitro humic acid 65Kg, rare earth 30Kg, potassium sulphate 27Kg, zinc sulphate 10Kg, ferrous sulfate 8Kg;
The perhaps A type agent of growing seedlings wherein contains the cinder 420Kg after the acidifying, sulfuric acid 100Kg, diammonium phosphate 230Kg, ammonium sulfate 110Kg, nitro humic acid 65Kg, rare earth 30Kg, potassium sulphate 27Kg, zinc sulphate 10Kg, ferrous sulfate 8Kg;
The Type B agent of growing seedlings wherein contains the cinder 420Kg after the acidifying, sulfuric acid 150Kg, diammonium phosphate 201Kg, ammonium sulfate 73Kg, nitro humic acid 66Kg, rare earth 40Kg, potassium sulphate 28Kg, zinc sulphate 12Kg, ferrous sulfate 10Kg;
The perhaps Type B agent of growing seedlings wherein contains the cinder 420Kg after the acidifying, sulfuric acid 143Kg, diammonium phosphate 200Kg, ammonium sulfate 90Kg, nitro humic acid 65Kg, rare earth 30Kg, potassium sulphate 30Kg, zinc sulphate 12Kg, ferrous sulfate 10Kg.
The preparation of described compound seedling cultivation of rice agent:
(1) acidifying of cinder: the cinder powder is adopted mass concentration 30-40% sulfuric acid water acidifying 7-8 days, make the cinder raw material after the acidifying, wherein the amount of per 100 kilograms of required sulfuric acid water of brown coal ground-slag grain is the 20-25 kilogram;
(2) preparation of nitro humic acid: preparation process is divided into raw material processing, nitrated and slaking;
Raw material is handled: the water content of brown coal is air-dry to water content 25-30wt%, pulverize then and be 10-20 purpose powder, the preparation raw material;
Nitrated and slaking: the brown coal powder after will drying carries out nitrated and slaking with the nitric acid aqueous solution of mass concentration 10-15%, and wherein per 100 kilograms of brown coal need nitric acid aqueous solution 20-25 kilogram, carry out slaking after the sealing, and the curing time is 8-10 days, nitro humic acid;
Nitrated raw material brown coal and nitric acid after referring to pulverize interacts and generates the process of nitro humic acid.Brown coal are to make the oxidation of coal of non-humic acid part become humic acid with the purpose of nitric acid aqueous solution reaction, the total content of humic acid is brought up to more than 70%, and brown coal and nitric acid aqueous solution reaction mainly are oxidative degradations, the nitrogen in the nitric acid aqueous solution, except being fixed in the product on a small quantity, most of with NO, N
2O, N
2Form overflow because this is the effect of weak acid and weak base, reaction velocity is slower, through nitrated material, also will store 8-10 days time, and it is reacted completely, this process is slaking.
(3) mix by the described prescription of claim 1, get product, namely get compound seedling cultivation of rice agent of the present invention after the packing.
The detailed process of the acidifying of cinder is in the step (1); At first the raw material cinder is dried and be crushed to the 10-20 order, feed coal ground-slag grain is tiled on the ground, every shop one deck cinder powder, just spread one deck sulfuric acid water, to evenly be sprinkling upon on the cinder powder, per 100 kilograms of brown coal ground-slag grains add mass concentration 30-40% sulfuric acid water 20-25 kilogram, and every layer of ground-slag grain thickness is 3-4 cun; When reaching the 3-4 chi when thick, begin to stir, build with the Polypropylence Sheet sealing back that stirs; Maturation period is 7-8 days, at last heap stand is let go, and caking is opened, stir once again, the cinder raw material after the standby acidifying.
Nitratedly in the preparation of nitro humic acid in the step (2) with detailed process slaking be:
Nitrated and slaking: the brown coal powder after will drying is tiled on the ground, thickness is 3-4 cun, per 100 kilograms of brown coal powders, the nitric acid aqueous solution 20-25 kilogram that adds concentration 10-15%, nitric acid aqueous solution will evenly be sprinkling upon on the brown coal powder, and then spread one deck brown coal powder, splash nitric acid aqueous solution and spreading brown coal powder of samsara so successively, to heap up to 3～4 chis; After then covering the brown coal powder, build with Polypropylence Sheet sealing and to carry out slaking; After slaking 8-10 days, heap stand is let go, stirs again, nitro humic acid.
Nitrated raw material brown coal and nitric acid after referring to pulverize interacts and generates the process of nitro humic acid.Brown coal are to make the oxidation of coal of non-humic acid part become humic acid with the purpose of nitric acid aqueous solution reaction, the total content of humic acid is brought up to more than 70%, and brown coal and nitric acid aqueous solution reaction mainly are oxidative degradations, the nitrogen in the nitric acid aqueous solution, except being fixed in the product on a small quantity, most of with NO, N
2O, N
2Form overflow because this is the effect of weak acid and weak base, reaction velocity is slower, through nitrated material, also will store 8-10 days time, and it is reacted completely, this process is slaking.
Beneficial effect of the present invention:
The present invention is a kind of polynary special fertilizer for seedling culture of paddy rice material, is carrier with the acidifying cinder, based on N, P, K, nitro humic acid, rare earth and trace element, belongs to the nutritive type rice seedling-cultivating agent, can increase substantially the integral level of growing seedlings in the paddy field.
Use the present invention and can improve rice seedling quantity alive and quality; Stimulate plant growth, because the effect of sulfuric acid in the agent of growing seedlings has reduced the pH value in the nursery soil, suppressed the generation of damping off, improve the disease resistance of crop; Prolong fertilizer deenergized period, reduce fertilizer loss; Humic acid is combined with the quick-acting chemical fertilizer of inorganic matter; The pre-treatment of cinder carrier, the selection of auxiliary material with rationally be mixed; The kind of nutritive element and quantity can satisfy the needs of rice growth phase; Miao Qi, seedling are strengthened, and survival rate of seedlings is at 85-95%.(according to different geological conditions), and have integral body to improve the rice seedling mass action.
Nitro humic acid as one of raw material of compound seedling cultivation of rice agent of the present invention is porous material, but improved soil nodule structure, regulate the soil water, fertilizer, gas, hot situation, improve the soil exchange capacity, the harmful substance that its absorption, complex reaction can reduce in the soil (comprises remains of pesticide, heavy metal and other Toxic), improve the soil natural detergent power, reduce and pollute; The colloid proterties that has owing to nitro humic acid can be improved micropopulation in the soil simultaneously, the growth and breeding of suitable beneficial bacterium.
Nitro humic acid has the various active gene, can strengthen the activity of making object hydrogen peroxide enzyme, polyphenol oxidase, and the stimulating plant physiological metabolism promotes that seed early germinates, the emergence rate height, and the seedling root of hair is fast, and the root amount is many, well developed root system, stem, branches and leaves stalwartness, in great numbers; Nitro humic acid has stronger exchange and adsorption capacity, can reduce the loss of ammonium nitrogen, improves utilization rate of nitrogen fertilizer; Nitro humic acid can also increase the distance that phosphorus moves in soil, suppress soil to water-soluble phosphorus fixation, promotes root system to the absorption of phosphorus; Nitro humic acid can dwindle the opening degree of blade face pore, reduces the blade face water evaporates, adjusts the water yield, and the interior water regime of plant corpus is improved, and guarantees crop normal growth under drought condition; Nitro humic acid is ampholytoid, and surface-active is big, and fungi is had inhibitory action, can strengthen the crop cold hardiness, prevents mashed disease, reduces damage by disease and insect.
Rare earth element as compound another raw material of seedling cultivation of rice agent of the present invention has following effect in seedling cultivation of rice:
(1) can promote that crop takes root, increase chlorophyllous content and strengthen photosynthetic effect; Promote carbohydrate radius vector portion temporary in the nutrition organs to shift;
(2) can promote crop to the absorption of nitrogen, phosphorus;
(3) can strengthen crop cold hardiness and drought resistance;
(4) improve the rice seedling rate and also paddy rice is emerged in advance, improve the rice seedling quality simultaneously.
The present invention is the biological property according to rice seed germination, the multi-functional agent of growing seedlings of the physicochemical character of soil and the nutritional condition of soil environment and science preparation.Nursery soil acidity can be regulated after using this agent of growing seedlings in the seedbed, provides growth of seedling necessary nutritive element, and nitrogenous, phosphorus, potassium and trace element and organic acid substance no longer need to spray insecticide and use various fertilizer; Can promote the growth of seedling stalwartness and control rice seedling damping off to take place, improve rice seedling quantity alive and quality, stimulate plant growth; The effect of sulfuric acid in the agent has reduced the pH value in the nursery soil owing to grow seedlings, and has suppressed the generation of damping off, improves the disease resistance of crop; Prolong fertilizer deenergized period, reduce fertilizer loss.
The rice shoot of using this agent of growing seedlings shows as that seedling is neat, seedling is strong, color just, well developed root system, no damping off take place, survival rate of seedlings is at 85-95%, transplant the slow seedling in back fast, tiller manyly, reach the purpose of volume increase.
Simultaneously, as safe as a house when the present invention uses, convenient, be applicable to the various crop of seedling cultivation of rice and other appropriate acid nutrition seedlings and soil, be the good approach of seedling cultivation of rice.
This agent of growing seedlings is 10-20 purpose graininess, is light grey, and laxity is strong, nitrogenous, phosphorus, potassium and trace element and organic acid substance.
This agent of growing seedlings has good physicochemical character, and easy to use, safe, pollution-free, raw material sources are extensive, and production technology is easy, and technology is easy to grasp, small investment, and instant effect, high efficiency, application effect is good, is the ideal product of seedling cultivation of rice.
Description of drawings
Fig. 1 is process chart of the present invention.
Embodiment
Compound seedling cultivation of rice agent preparation method's embodiment is:
The agent of growing seedlings of embodiment 1B type
1, the acidifying of cinder: at first the raw material cinder is dried and be crushed to the 10-15 order, feed coal ground-slag grain is tiled on the ground, every shop one deck cinder powder, just spread one deck sulfuric acid water, to evenly be sprinkling upon on the cinder powder, per 100 kilograms of brown coal ground-slag grains add 20 kilograms in mass concentration 30% sulfuric acid water, and every layer of ground-slag grain thickness is 4 cun; When reaching 3 chis when thick, begin to stir, build with the Polypropylence Sheet sealing back that stirs; Maturation period is 7 days, at last heap stand is let go, and caking is opened, stir once again, standby raw material;
2, the preparation of nitro humic acid: preparation process is divided into raw material processing, nitrated and three steps of slaking
(1) raw material is handled: be raw material with brown coal, with the water content of brown coal through natural air drying to water content 25wt%, pulverize then and be 10-15 purpose powder, the preparation raw material;
(2) nitrated and slaking: the brown coal powder after will drying is tiled on the ground, thickness is 3 cun, per 100 kilograms of brown coal powders, 20 kilograms of the nitric acid aqueous solution of adding concentration 15%, nitric acid aqueous solution will evenly be sprinkling upon on the brown coal powder, and then spread one deck brown coal powder, splash nitric acid aqueous solution and spreading brown coal powder of samsara so successively, to heap up to 3 chis; After then covering the brown coal powder, build with Polypropylence Sheet sealing and to carry out slaking; After the slaking 8 days, heap stand is let go, stirs again, nitro humic acid.
3, the purity to raw material detects; Record raw material purity accurately, can calculate the suitable addition of raw material by purity;
4, get cinder 420Kg after the acidifying, sulfuric acid 150Kg, diammonium phosphate 201Kg, ammonium sulfate 73Kg, nitro humic acid 66Kg, rare earth 40Kg, potassium sulphate 28Kg, zinc sulphate 12Kg, ferrous sulfate 10Kg, after mixing the compound seedling cultivation of rice agent of 1000kg;
5, finished product packing.
The agent of growing seedlings of embodiment 2A type
Difference from Example 1 is, gets the cinder 490Kg that contains after the acidifying, sulfuric acid 100Kg, diammonium phosphate 200Kg, ammonium sulfate 70Kg, nitro humic acid 65Kg, rare earth 30Kg, potassium sulphate 27Kg, zinc sulphate 10Kg, ferrous sulfate 8Kg gets the compound seedling cultivation of rice agent of 1000kg after mixing.
The agent of growing seedlings of embodiment 3A type
Difference from Example 1 is, gets the cinder 420Kg that contains after the acidifying, sulfuric acid 100Kg, diammonium phosphate 230Kg, ammonium sulfate 110Kg, nitro humic acid 65Kg, rare earth 30Kg, potassium sulphate 27Kg, zinc sulphate 10Kg, ferrous sulfate 8Kg gets the compound seedling cultivation of rice agent of 1000kg after mixing.
The agent of growing seedlings of embodiment 4B type
1, the acidifying of cinder: at first the raw material cinder is dried and be crushed to the 15-20 order, feed coal ground-slag grain is tiled on the ground, every shop one deck cinder powder, just spread one deck sulfuric acid water, to evenly be sprinkling upon on the cinder powder, per 100 kilograms of brown coal ground-slag grains add 25 kilograms in mass concentration 40% sulfuric acid water, and every layer of ground-slag grain thickness is 3 cun; When reaching 4 chis when thick, begin to stir, build with the Polypropylence Sheet sealing back that stirs; Maturation period is 8 days, at last heap stand is let go, and caking is opened, stir once again, standby raw material;
2, the preparation of nitro humic acid: preparation process is divided into raw material processing, nitrated and three steps of slaking
(1) raw material is handled: be raw material with brown coal, with the water content of brown coal through natural air drying to water content 30wt%, pulverize then and be 15-20 purpose powder, the preparation raw material;
(2) nitrated and slaking: the brown coal powder after will drying is tiled on the ground, thickness is 4 cun, per 100 kilograms of brown coal powders, 25 kilograms of the nitric acid aqueous solution of adding concentration 10%, nitric acid aqueous solution will evenly be sprinkling upon on the brown coal powder, and then spread one deck brown coal powder, splash nitric acid aqueous solution and spreading brown coal powder of samsara so successively, to heap up to 4 chis; After then covering the brown coal powder, build with Polypropylence Sheet sealing and to carry out slaking; After the slaking 10 days, heap stand is let go, stirs again, nitro humic acid.
3, the purity to raw material detects; Record raw material purity accurately, can calculate the suitable addition of raw material by purity;
4, get the cinder 420Kg that contains after the acidifying, sulfuric acid 143Kg, diammonium phosphate 200Kg, ammonium sulfate 90Kg, nitro humic acid 65Kg, rare earth 30Kg, potassium sulphate 30Kg, zinc sulphate 12Kg, ferrous sulfate 10Kg.
5, finished product packing.
During application: this agent of growing seedlings has two kinds of models, the A type is suitable for the soil of acid-base value 7-7.5, Type B is suitable for soil alkaline about acid-base value 7.5-8.5, when seedling cultivation of rice, the seedbed is flattened, after the suppression, use this agent 0.4-0.5 kilogram of growing seedlings, spray water with watering can for every square metre, make and grow seedlings the agent dissolving after 10 minutes, the sowing earthing just can make bed soil reach desirable acidity.
The agent of growing seedlings of A type or Type B can decide the model of use according to the acid-base value of soil.A type or the Type B agent key on prescription of growing seedlings is that the consumption of sulfuric acid is different, and other content and production technology are identical.
Claims (6)
1. compound seedling cultivation of rice agent, it is characterized in that: by 1000kg, wherein contain the cinder 420-490Kg after the acidifying, sulfuric acid 100-150Kg, diammonium phosphate 200-230Kg, ammonium sulfate 70-110Kg, nitro humic acid 65-85Kg, rare earth 30-40Kg, potassium sulphate 27-35Kg, zinc sulphate 10-12Kg, ferrous sulfate 8-10Kg.
2. compound seedling cultivation of rice agent according to claim 1 is characterized in that: the agent of growing seedlings of A type wherein contains the cinder 490Kg after the acidifying, sulfuric acid 100Kg, diammonium phosphate 200Kg, ammonium sulfate 70Kg, nitro humic acid 65Kg, rare earth 30Kg, potassium sulphate 27Kg, zinc sulphate 10Kg, ferrous sulfate 8Kg;
Perhaps, wherein contain the cinder 420Kg after the acidifying, sulfuric acid 100Kg, diammonium phosphate 230Kg, ammonium sulfate 110Kg, nitro humic acid 65Kg, rare earth 30Kg, potassium sulphate 27Kg, zinc sulphate 10Kg, ferrous sulfate 8Kg.
3. compound seedling cultivation of rice agent according to claim 1 is characterized in that: the Type B agent of growing seedlings wherein contains the cinder 420Kg after the acidifying, sulfuric acid 150Kg, diammonium phosphate 201Kg, ammonium sulfate 73Kg, nitro humic acid 66Kg, rare earth 40Kg, potassium sulphate 28Kg, zinc sulphate 12Kg, ferrous sulfate 10Kg;
Perhaps, wherein contain the cinder 420Kg after the acidifying, sulfuric acid 143Kg, diammonium phosphate 200Kg, ammonium sulfate 90Kg, nitro humic acid 65Kg, rare earth 30Kg, potassium sulphate 30Kg, zinc sulphate 12Kg, ferrous sulfate 10Kg.
4. the preparation method of the described compound seedling cultivation of rice agent of claim 1 is characterized in that:
(1) acidifying of cinder: brown coal ground-slag grain is adopted mass concentration 30-40% sulfuric acid water acidifying 7-8 days, make the cinder raw material after the acidifying, wherein the amount of per 100 kilograms of required sulfuric acid water of brown coal ground-slag grain is the 20-25 kilogram;
(2) preparation of nitro humic acid: preparation process is divided into raw material processing, nitrated and slaking;
Raw material is handled: the water content of brown coal is air-dry to water content 25-30wt%, pulverize then and be 10-20 purpose powder, the preparation raw material;
Nitrated and slaking: the brown coal powder after air-dry is carried out nitrated and slaking with the nitric acid aqueous solution of mass concentration 10-15%, and wherein per 100 kilograms of brown coal powders need nitric acid aqueous solution 20-25 kilogram, carry out slaking after the sealing, and the curing time is 8-10 days, nitro humic acid;
(3) prescription by claim 1 mixes, and gets product, and namely gets compound seedling cultivation of rice agent after the packing.
5. preparation method according to claim 4 is characterized in that:
The detailed process of the acidifying of cinder is in the step (1); At first raw material brown coal slag is dried and be crushed to the 10-20 order, brown coal ground-slag grain is tiled on the ground, every shop one deck brown coal ground-slag grain, just spread one deck sulfuric acid water, to evenly be sprinkling upon on the brown coal ground-slag grain, per 100 kilograms of brown coal ground-slag grains add mass concentration 30-40% sulfuric acid water 20-25 kilogram, and every layer of brown coal ground-slag grain thickness is 3-4 cun; When reaching the 3-4 chi when thick, begin to stir, build with the Polypropylence Sheet sealing back that stirs; Maturation period is 7-8 days, at last heap stand is let go, and caking is opened, stir once again, the cinder raw material after the standby acidifying.
6. preparation method according to claim 4 is characterized in that:
Nitratedly in the preparation of nitro humic acid in the step (2) with detailed process slaking be:
Nitrated and slaking: the brown coal powder after air-dry is tiled on the ground, thickness is 3-4 cun, per 100 kilograms of brown coal powders, the nitric acid aqueous solution 20-25 kilogram that adds concentration 10-15%, nitric acid aqueous solution will evenly be sprinkling upon on the brown coal powder, and then spread one deck brown coal powder, splash nitric acid aqueous solution and spreading brown coal powder of samsara so successively, to heap up to 3～4 chis; After then covering the brown coal powder, build with Polypropylence Sheet sealing and to carry out slaking; After slaking 8-10 days, heap stand is let go, stirs again, nitro humic acid.
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| CN102765993B (en) * | 2012-08-07 | 2014-11-05 | 史殷才 | Nano activating agent |
| CN103708855B (en) * | 2013-12-27 | 2016-03-23 | 云南中电新能源有限公司 | The preparation method of microbial fertilizer or agricultural chemicals and obtained microbial fertilizer or agricultural chemicals |
| CN104262010A (en) * | 2014-09-30 | 2015-01-07 | 广西博白县琼达农业科技有限公司 | Sugarcane seedling dipping agent |
| CN104311343A (en) * | 2014-10-22 | 2015-01-28 | 陆川县泓源蔬菜专业合作社 | Polygonatum odoratum rooting powder |
| CN105884555A (en) * | 2014-10-29 | 2016-08-24 | 包春妹 | Fertilizer for adjusting rootstock growth of sugarcane in soil culture |
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| CN105037019A (en) * | 2015-09-15 | 2015-11-11 | 何小宁 | Coal cinder organic fertilizer special for walnuts and preparation method thereof |
| CN106922731A (en) * | 2015-12-30 | 2017-07-07 | 董福长 | Prevent and treat paddy seedbed damping-off medicament |
| CN109956798A (en) * | 2017-12-25 | 2019-07-02 | 黑龙江金玛农业有限公司 | A kind of LIPIDS OF DRY RICE EMBRYO seed nursery nutritional agents and preparation method thereof |
| CN109180282A (en) * | 2018-11-22 | 2019-01-11 | 遵义驰宇御园生态农业开发有限公司 | A kind of seedling raising agent for paddy rice |
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| CN1125213A (en) * | 1994-12-21 | 1996-06-26 | 中国科学院沈阳应用生态研究所 | Fertilizer synergist |
| CN1179886A (en) * | 1996-10-11 | 1998-04-29 | 金安世 | High quality rice seedling growing regulator |
| CN1067672C (en) * | 1997-07-18 | 2001-06-27 | 秦树国 | Special fertilizer for raising rice seedlings |
| CN1267455A (en) * | 2000-03-09 | 2000-09-27 | 宁夏中天技术创新工程有限公司 | Rice seed coating agent containing rare earth elements and pesticide |
| CN101723746A (en) * | 2008-10-24 | 2010-06-09 | 黑龙江省科学院生物肥料研究中心 | Novel seedling imigorator for rice |
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| PB01 | Publication | ||
| C10 | Entry into substantive examination | ||
| SE01 | Entry into force of request for substantive examination | ||
| C14 | Grant of patent or utility model | ||
| GR01 | Patent grant | ||
| C53 | Correction of patent for invention or patent application | ||
| CB03 | Change of inventor or designer information |
Inventor after: Jing Hongshuang Inventor before: Wu Jiabing Inventor before: Li Xiaoyan |
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| COR | Change of bibliographic data |
Free format text: CORRECT: INVENTOR; FROM: WU JIABING LI XIAOYAN TO: JING HONGSHUANG |