CN106007994A - Preparation method and application of special rice selenium-enriched leaf fertilizer - Google Patents
Preparation method and application of special rice selenium-enriched leaf fertilizer Download PDFInfo
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- CN106007994A CN106007994A CN201610359854.8A CN201610359854A CN106007994A CN 106007994 A CN106007994 A CN 106007994A CN 201610359854 A CN201610359854 A CN 201610359854A CN 106007994 A CN106007994 A CN 106007994A
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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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- A—HUMAN NECESSITIES
- A01—AGRICULTURE; FORESTRY; ANIMAL HUSBANDRY; HUNTING; TRAPPING; FISHING
- A01C—PLANTING; SOWING; FERTILISING
- A01C21/00—Methods of fertilising, sowing or planting
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- C—CHEMISTRY; METALLURGY
- C05—FERTILISERS; MANUFACTURE THEREOF
- C05C—NITROGENOUS FERTILISERS
- C05C11/00—Other nitrogenous fertilisers
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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
- C05G5/00—Fertilisers characterised by their form
- C05G5/20—Liquid fertilisers
- C05G5/23—Solutions
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- Life Sciences & Earth Sciences (AREA)
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- Organic Chemistry (AREA)
- Pest Control & Pesticides (AREA)
- Soil Sciences (AREA)
- Environmental Sciences (AREA)
- Fertilizers (AREA)
Abstract
The invention provides a preparation method and an application of a special rice selenium-enriched leaf fertilizer. The preparation method of the special rice selenium-enriched leaf fertilizer comprises the following steps: dissolving sodium selenite into water to prepare a primary mother solution, wherein the concentration of sodium selenite is 25 to 50g/l; mixing the primary mother solution with an amino acid solution, wherein the mass concentration of the amino acid solution is 15% to 20%; then vibrating and chelating at the temperature of 35 to 45 DEG C for 48 to 60 hours to obtain a chelation solution; evenly mixing the chelation solution and an aqueous solution of a mono-silicic acid to prepare a mixed solution; adding 1 to 3g of sodium alkyl benzene sulfonate into each liter of the mixed solution, then stirring with an alcoholic fermentation filtrate at the temperature of 25 to 35 DEG C, and performing secondary chelation for 36 to 48 hours, so as to obtain the special rice selenium-enriched leaf fertilizer. With the adoption of the technical scheme of the preparation method, 90% or more of inorganic-form selenium is converted into organic-form selenium in selenomethionine, selenocystine and the like, the risk of poison is eliminated, the absorption and conversion rate of the selenium is increased, the use amount of the sodium selenite is reduced, and the cost is lowered.
Description
Technical field
The invention belongs to agricultural fertilizer technical field, particularly relate to a kind of Oryza sativa L. tailored version selenium-enriched foliage fertilizer preparation method and applications.
Background technology
At present, the Paddy rice selenium-rich foliar fertilizer of the overwhelming majority typically uses selenite or selenite is fermented on the market or carries out repeatedly foliage-spray after chelating agent mixing, minimum needs sprayed once respectively in Oryza sativa L. jointing stage and cut phase phase beginning of i.e. earing, it is generally required to spray more than twice, to realize the production of Se-rich farm products.This method is primarily present following weakness: one is that the residual of inorganic selenium is serious, has potential murder by poisoning risk；Two is that the conversion ratio of agricultural product selenium is low, and cost is high；Three are the applications of foliage fertilizer and plant itself are had burn seedlings risk；Four is repeatedly to spray workload greatly, and cost of labor is high.
Summary of the invention
For above technical problem, the invention discloses a kind of Oryza sativa L. tailored version selenium-enriched foliage fertilizer preparation method and applications, using the Oryza sativa L. tailored version selenium-enriched foliage fertilizer that the method obtains, inorganic states selenium more than 90% is converted into the Organic Seleniums such as selenomethionine and selenocystine, eliminates murder by poisoning risk；Improve its sorption enhanced utilization rate to selenium, it is possible to reduce spray number of times, be so effectively reduced and spray workload, reduce artificial production cost.
To this, the technical solution used in the present invention is:
A kind of Oryza sativa L. tailored version selenium-enriched foliage fertilizer preparation method, comprises the following steps:
Step S1: sodium selenite is soluble in water, is made into original nut liquid, and wherein, the concentration of sodium selenite is 25 ~ 50g/l；
Step S2: be that 15%-20% Freamine Ⅲ mixes by the original nut liquid of step S1 and mass concentration, described original nut liquid is 1:(3 ~ 4 with the volume ratio of Freamine Ⅲ), at 35 ~ 45 DEG C, then carry out concussion chelating 48-60 hour, obtain chelating liquid；Wherein, the concentration of Freamine Ⅲ can not be too high, the most easily produces crystallization；The concentration of Freamine Ⅲ is too low, impact effect；
Step S3: by described chelating liquid and single silicate content be the aqueous solution of 1.5 ~ 2.5kg/L be (8 ~ 10) according to volume ratio: 1 mixes and is made into mixed liquor；
Step S4: add adhesive agent sodium alkyl benzene sulfonate in mixed liquor described in step S3, described sodium alkyl benzene sulfonate is to add 1 ~ 3g by every liter of mixed liquor；At 25 ~ 35 DEG C, it is stirred secondary again chelate 36-48 hour with alcohol fermentation cleaner liquid, described alcohol fermentation cleaner liquid is 1:(0.8 ~ 1.2 with the volume ratio of mixed liquor), obtaining Oryza sativa L. tailored version selenium-enriched foliage fertilizer, in described Oryza sativa L. tailored version selenium-enriched foliage fertilizer, the effective Se content of solubility is 0.2%.
Use this technical scheme, first chelating is the most dynamically shaken with certain density Freamine Ⅲ, it is subsequently adding adhesive agent the most dynamically to chelate, promotes the stable absorption of selenium further so that inorganic states selenium is largely converted into Organic Selenium.Wherein, the alcohol fermentation liquid of employing comprises compound bacteria, and effect is more preferable, and can turn waste into wealth.This novel selenium-enriched foliage fertilizer is not simple fermentation or complex liquid, it it is a kind of stable Chelating state organic liquor, selenium in general common fermentation mixed liquor is substantially inorganic states selenite, and the method for the present invention is to be chelated by constant temperature, and the selenium of the inside has been largely converted into Organic Selenium；Inorganic states selenium is by double chelatings, and more than 90% has converted Organic Selenium, eliminates murder by poisoning risk, is also greatly saved the usage amount of sodium selenite raw material simultaneously, can save more than 80%.Simultaneously under the collaborative promotion of monomer reactivity silicon, improve the resistance of Oryza sativa L., eliminate the risk of burn seedlings.The selenium-enriched foliage fertilizer that the technical program obtains, Oryza sativa L. is strong to this its adhesiveness, and absorption rate is high, Gu only need to spray once in phase beginning of i.e. earing Oryza sativa L. cut phase, certainly, except meeting rainstorm weather after such as spraying, so it is effectively reduced and sprays workload, reduce artificial production cost.
As a further improvement on the present invention, in step S1, the concentration of described sodium selenite is 30 ~ 40g/l.
As a further improvement on the present invention, in step S2, described original nut liquid is 1:3.5 with the volume ratio of Freamine Ⅲ.
As a further improvement on the present invention, in step S2, the frequency of concussion is 60-120 pendulum beat/min.
As a further improvement on the present invention, in step S3, the speed of stirring is 20-40 rev/min.
As a further improvement on the present invention, in step S3, described alcohol fermentation cleaner liquid is 1:1 with the volume ratio of chelating liquid.
The invention also discloses the application of a kind of Oryza sativa L. tailored version selenium-enriched foliage fertilizer, described Oryza sativa L. tailored version selenium-enriched foliage fertilizer uses the preparation method of Oryza sativa L. tailored version selenium-enriched foliage fertilizer as above to prepare, and described Oryza sativa L. tailored version selenium-enriched foliage fertilizer sprays after diluting 200-500 times.
As a further improvement on the present invention, in the Oryza sativa L. cut phase, every mu takes described Oryza sativa L. tailored version selenium-enriched foliage fertilizer 300-400 milliliter, carries out Herb and spray after diluting 100-150 times.
Compared with prior art, the invention have the benefit that
First, use technical scheme, inorganic states selenium is by double chelatings, and more than 90% is converted into the Organic Seleniums such as selenomethionine and selenocystine, eliminates murder by poisoning risk；And it being greatly saved the usage amount of sodium selenite raw material, saving ratio reaches more than 80%.
Second, use technical scheme, activator monomer reactivity silicon is organically combined with adhesive agent sodium alkyl benzene sulfonate, not only add the adhesiveness of foliage fertilizer, and by the happiness silicon characteristic of Oryza sativa L., activate the physiological growth characteristic of Oryza sativa L., be effectively promoted Oryza sativa L. to the absorption of selenium element and transfer, improve its sorption enhanced utilization rate to selenium.Use technical scheme, by adding the materials such as adhesive agent sodium alkyl benzene sulfonate, add it as adhesiveness during foliage fertilizer, it is effectively prevented blade face to run off, improve its sorption enhanced utilization rate to selenium, can reduce and spray number of times, so be effectively reduced and spray workload, reduce artificial production cost；And this fertilizer may also be combined with the Integration of Water into Fertilizer and carries out root and grant drip irrigation and impose.
3rd, the Oryza sativa L. tailored version selenium-enriched foliage fertilizer that technical scheme obtains is not simple fermentation or complex liquid, but a kind of stable Chelating state organic liquor, simultaneously under the collaborative promotion of monomer reactivity silicon, improve the resistance of Oryza sativa L., eliminate the risk of burn seedlings.
4th, use technical scheme, because Oryza sativa L. is strong to the adhesiveness of this selenium-enriched foliage fertilizer, absorption rate is high, solid only need to spray once in phase beginning of i.e. earing Oryza sativa L. cut phase, except chance rainstorm weather after spraying, so it is effectively reduced and sprays workload, reduce artificial production cost.
Detailed description of the invention
Below the preferably embodiment of the present invention is described in further detail.
Embodiment 1
A kind of Oryza sativa L. tailored version selenium-enriched foliage fertilizer, uses following steps to prepare:
(1) weigh 50 grams of sodium selenite, be dissolved in 2 liters of distilled water or deionized water, be made into original nut liquid a；
(2) by 2 liters of original nut liquid a, and the Freamine Ⅲ of 7 liters of 15%-20% shakes between 35 DEG C-45 DEG C, and frequency is 60-120 pendulum beat/min, chelates 48-60 hour, forms 9 liters of chelating liquid b；
(3) 9 liters of chelating liquid b are mixed with the aqueous solution that 1 liter of single silicate content is 2kg/L it is made into 10 liters of mixed liquor c；
(4) in 10 liters of mixed liquor c, add 20 grams of sodium alkyl benzene sulfonate chemical pures and make adhesive agent, the 10 liters of alcohol fermentation cleaner liquids fermented again and are stirred between 25 DEG C-35 DEG C, mixing speed is 20-40 rev/min, secondary chelates 36-48 hour, just defines 20 liters of Oryza sativa L. tailored version selenium-enriched foliage fertilizers.
The 20 liters of Oryza sativa L. tailored version selenium-enriched foliage fertilizers obtained can be supplied the Selenium rich rice of more than 50 mu and produce.
Five samples are prepared respectively according to above-mentioned steps, step (2) in Sample Preparation Procedure and step (4) are respectively adopted chromatographic fractionation system, atomic fluorescence spectrophotometer and Se form pretreatment unit and are combined into HPLC-HG-AFS combined system and are measured after terminating, five samples are after chelating for the first time, in the chelating liquid of five samples, organic selenium content accounts for selenium total amount respectively and is followed successively by 62.1%, 63.9%, 65.8%, 66.9%, 68.4%, average out to 65.4%；After second time chelating, in chelating liquid, organic selenium content accounts for total Se content respectively and is followed successively by 89.3%, 93.2%, 96.1%, 97.9%, 99.7%, average out to 95.2%, it can be seen that, use technical scheme, substantially increase conversion ratio, eliminate murder by poisoning risk.Through detection, in described Oryza sativa L. tailored version selenium-enriched foliage fertilizer, the effective Se content of solubility is 0.2%.
And, the most general selenium-rich liquid fertilizer conversion is containing sodium selenite about 2%, that is produce 20 liters of selenium-rich liquid fertilizers and need 400 grams of sodium selenite raw materials, it it is our 4-8 times, use technical scheme, it is greatly saved the usage amount of sodium selenite raw material, eliminates murder by poisoning risk simultaneously.
Embodiment 2
A kind of Oryza sativa L. tailored version selenium-enriched foliage fertilizer, uses following steps to prepare:
(1) weigh 100 grams of sodium selenite, be dissolved in 2 liters of distilled water or deionized water, be made into original nut liquid a；
(2) by original nut liquid a, and the Freamine Ⅲ of 20% shakes between 35 DEG C-45 DEG C, and original nut liquid a is 1:3 with the volume ratio of Freamine Ⅲ, and concussion frequency is 60-120 pendulum beat/min, chelates 48-60 hour, forms chelating liquid b；
(3) it is that 8:1 mixing be made into mixed liquor c with the aqueous solution that single silicate content is 2.5kg/L according to volume ratio by chelating liquid b；
(4) adding sodium alkyl benzene sulfonate chemical pure in mixed liquor c and make adhesive agent, described sodium alkyl benzene sulfonate is to add 3g by every liter of mixed liquor；The alcohol fermentation cleaner liquid fermented again and is stirred between 25 DEG C-35 DEG C, mixing speed is 20-40 rev/min, secondary chelates 36-48 hour, and described alcohol fermentation cleaner liquid is 1:1.2 with the volume ratio of mixed liquor, has just obtained Oryza sativa L. tailored version selenium-enriched foliage fertilizer.
After step (2) and step (4) complete, it is respectively adopted chromatographic fractionation system, atomic fluorescence spectrophotometer and Se form pretreatment unit be combined into HPLC-HG-AFS combined system and be measured, this example chelates organic selenium content in liquid after chelating for the first time and accounts for selenium total amount average out to 62.4%；After second time chelating, in chelating liquid, organic selenium content accounts for total Se content average out to 92.6%.Through detection, in described Oryza sativa L. tailored version selenium-enriched foliage fertilizer, the effective Se content of solubility is 0.2%.
Embodiment 3
A kind of Oryza sativa L. tailored version selenium-enriched foliage fertilizer, uses following steps to prepare:
(1) weigh 80 grams of sodium selenite, be dissolved in 2 liters of distilled water or deionized water, be made into original nut liquid a；
(2) by original nut liquid a, and the Freamine Ⅲ of 15% shakes between 35 DEG C-45 DEG C, and original nut liquid a is 1:4 with the volume ratio of Freamine Ⅲ, and concussion frequency is 60-120 pendulum beat/min, chelates 48-60 hour, forms chelating liquid b；
(3) it is that 10:1 mixing be made into mixed liquor c with the aqueous solution that single silicate content is 1.5kg/L according to volume ratio by chelating liquid b；
(4) adding sodium alkyl benzene sulfonate chemical pure in mixed liquor c and make adhesive agent, described sodium alkyl benzene sulfonate is to add 1g by every liter of mixed liquor；The alcohol fermentation cleaner liquid fermented again and is stirred between 25 DEG C-35 DEG C, mixing speed is 20-40 rev/min, secondary chelates 36-48 hour, and described alcohol fermentation cleaner liquid is 1:0.8 with the volume ratio of mixed liquor, has just obtained Oryza sativa L. tailored version selenium-enriched foliage fertilizer.
After step (2) and step (4) complete, it is respectively adopted chromatographic fractionation system, atomic fluorescence spectrophotometer and Se form pretreatment unit be combined into HPLC-HG-AFS combined system and be measured, this example chelates organic selenium content in liquid after chelating for the first time and accounts for selenium total amount average out to 64.8%；After second time chelating, in chelating liquid, organic selenium content accounts for total Se content average out to 95.6%.Through detection, in described Oryza sativa L. tailored version selenium-enriched foliage fertilizer, the effective Se content of solubility is 0.2%.
Embodiment 4
The application on Oryza sativa L. of the Oryza sativa L. tailored version selenium-enriched foliage fertilizer of embodiment 1.
The Oryza sativa L. tailored version selenium-enriched foliage fertilizer of embodiment 1 is tested in green rich agricultural company limited base in Luo Bo town, Wuming district of Nanning City, i.e. ear phase beginning in the Oryza sativa L. cut phase, every mu of water intaking rice tailored version selenium-enriched foliage fertilizer 300 milliliters, carries out Herb after dilution 150 times and sprays once.And use the Kangxu's treasured fertilizer rich in selenium on market as a comparison case, commensurability spray on Oryza sativa L..In overtesting, this example, using the rice Se content of Oryza sativa L. tailored version selenium-enriched foliage fertilizer of embodiment 1 at about 0.2mg/kg, concordance is good, and does not haves burn seedlings phenomenon.And it is highly unstable to spray the rice Se content that commensurability strong fertilizer rich in selenium processes, some only has 0.025mg/kg, and some arrives 1.5mg/kg, and burn seedlings phenomenon easily occurs.
Above content is to combine concrete preferred implementation further description made for the present invention, it is impossible to assert the present invention be embodied as be confined to these explanations.For general technical staff of the technical field of the invention, without departing from the inventive concept of the premise, it is also possible to make some simple deduction or replace, all should be considered as belonging to protection scope of the present invention.
Claims (7)
1. an Oryza sativa L. tailored version selenium-enriched foliage fertilizer preparation method, it is characterised in that comprise the following steps:
Step S1: sodium selenite is soluble in water, is made into original nut liquid, and wherein, the concentration of sodium selenite is 25 ~ 50g/l；
Step S2: be that 15%-20% Freamine Ⅲ mixes by the original nut liquid of step S1 and mass concentration, described original nut liquid is 1:(3 ~ 4 with the volume ratio of Freamine Ⅲ), at 35 ~ 45 DEG C, then carry out concussion chelating 48-60 hour, obtain chelating liquid；
Step S3: by described chelating liquid and single silicate content be the aqueous solution of 1.5 ~ 2.5kg/L be (8 ~ 10) according to volume ratio: 1 mixes and is made into mixed liquor；
Step S4: add adhesive agent sodium alkyl benzene sulfonate in mixed liquor described in step S3, described sodium alkyl benzene sulfonate is to add 1 ~ 3g by every liter of mixed liquor；Being stirred secondary again at 25 ~ 35 DEG C to chelate 36-48 hour with alcohol fermentation cleaner liquid, described alcohol fermentation cleaner liquid is 1:(0.8 ~ 1.2 with the volume ratio of mixed liquor), obtain Oryza sativa L. tailored version selenium-enriched foliage fertilizer.
Oryza sativa L. tailored version selenium-enriched foliage fertilizer preparation method the most according to claim 1, it is characterised in that: in step S1, the concentration of described sodium selenite is 30 ~ 40g/l.
Oryza sativa L. tailored version selenium-enriched foliage fertilizer preparation method the most according to claim 1, it is characterised in that: in step S2, described original nut liquid is 1:3.5 with the volume ratio of Freamine Ⅲ.
Oryza sativa L. tailored version selenium-enriched foliage fertilizer preparation method the most according to claim 1, it is characterised in that: in step S2, the frequency of concussion is 60-120 pendulum beat/min；In step S3, the speed of stirring is 20-40 rev/min.
Oryza sativa L. tailored version selenium-enriched foliage fertilizer preparation method the most according to claim 1, it is characterised in that: in step S3, described alcohol fermentation cleaner liquid is 1:1 with the volume ratio of chelating liquid.
6. the application of an Oryza sativa L. tailored version selenium-enriched foliage fertilizer,It is characterized in that: described Oryza sativa L. tailored version selenium-enriched foliage fertilizer uses the preparation method of the Oryza sativa L. tailored version selenium-enriched foliage fertilizer as described in claim 1 ~ 5 any one to prepare, and described Oryza sativa L. tailored version selenium-enriched foliage fertilizer sprays after diluting 100-150 times.
The application of Oryza sativa L. tailored version selenium-enriched foliage fertilizer the most according to claim 6, it is characterised in that: in the Oryza sativa L. cut phase, every mu takes described Oryza sativa L. tailored version selenium-enriched foliage fertilizer 300-400 milliliter, carries out Herb and spray after diluting 100-150 times.
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Cited By (13)
| Publication number | Priority date | Publication date | Assignee | Title |
|---|---|---|---|---|
| CN106561399A (en) * | 2016-11-14 | 2017-04-19 | 昭通金滩农业科技有限公司 | Ecological planting method of selenium-enriched apples |
| CN106588283A (en) * | 2016-11-26 | 2017-04-26 | 安徽裕龙种植农民专业合作社 | Selenium-rich foliar fertilizer for rice |
| CN108727081A (en) * | 2018-06-26 | 2018-11-02 | 广西壮族自治区农业科学院农业资源与环境研究所 | A method of producing Se-enriched bio-organic fertilizer with agricultural wastes |
| CN109534890A (en) * | 2018-11-06 | 2019-03-29 | 烟台东洲盛泰生物科技有限公司 | A kind of siliceous fertilizer and preparation method thereof |
| CN109566667A (en) * | 2018-12-20 | 2019-04-05 | 广西壮族自治区农业科学院生物技术研究所 | A kind of rush bud agent and preparation method thereof and the application in weeding |
| CN109618851A (en) * | 2018-12-20 | 2019-04-16 | 广西壮族自治区农业科学院生物技术研究所 | A kind of method of pueraria lobata nursery |
| CN109734530A (en) * | 2017-10-31 | 2019-05-10 | 湖南德禾农业电商科技有限公司 | A kind of selenium-enriched foliage fertilizer and preparation method thereof |
| CN110655428A (en) * | 2019-11-01 | 2020-01-07 | 安徽乾丰新型肥料有限公司 | Amino acid foliar fertilizer, preparation method thereof and method for cultivating and producing selenium-rich rice |
| CN111170784A (en) * | 2019-12-31 | 2020-05-19 | 梁山菱花生物科技有限公司 | Preparation and application method of amino acid chelated selenium leaf fertilizer |
| CN112745157A (en) * | 2020-10-30 | 2021-05-04 | 广西壮族自治区农业科学院 | Selenium-enriched biological foliar fertilizer and preparation method and application thereof |
| CN112778035A (en) * | 2019-11-10 | 2021-05-11 | 湖南金泰米业有限公司 | Rice foliar fertilizer and preparation method thereof |
| CN113149792A (en) * | 2021-05-26 | 2021-07-23 | 重庆文理学院 | Special compound foliar fertilizer for rice and preparation method thereof |
| CN115368177A (en) * | 2022-09-07 | 2022-11-22 | 广西壮族自治区农业科学院 | Plant leaf surface enhancer and application thereof |
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| Publication number | Priority date | Publication date | Assignee | Title |
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| CN106561399A (en) * | 2016-11-14 | 2017-04-19 | 昭通金滩农业科技有限公司 | Ecological planting method of selenium-enriched apples |
| CN106588283A (en) * | 2016-11-26 | 2017-04-26 | 安徽裕龙种植农民专业合作社 | Selenium-rich foliar fertilizer for rice |
| CN109734530A (en) * | 2017-10-31 | 2019-05-10 | 湖南德禾农业电商科技有限公司 | A kind of selenium-enriched foliage fertilizer and preparation method thereof |
| CN108727081A (en) * | 2018-06-26 | 2018-11-02 | 广西壮族自治区农业科学院农业资源与环境研究所 | A method of producing Se-enriched bio-organic fertilizer with agricultural wastes |
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| CN109618851A (en) * | 2018-12-20 | 2019-04-16 | 广西壮族自治区农业科学院生物技术研究所 | A kind of method of pueraria lobata nursery |
| CN109566667A (en) * | 2018-12-20 | 2019-04-05 | 广西壮族自治区农业科学院生物技术研究所 | A kind of rush bud agent and preparation method thereof and the application in weeding |
| CN110655428A (en) * | 2019-11-01 | 2020-01-07 | 安徽乾丰新型肥料有限公司 | Amino acid foliar fertilizer, preparation method thereof and method for cultivating and producing selenium-rich rice |
| CN112778035A (en) * | 2019-11-10 | 2021-05-11 | 湖南金泰米业有限公司 | Rice foliar fertilizer and preparation method thereof |
| CN111170784A (en) * | 2019-12-31 | 2020-05-19 | 梁山菱花生物科技有限公司 | Preparation and application method of amino acid chelated selenium leaf fertilizer |
| CN112745157A (en) * | 2020-10-30 | 2021-05-04 | 广西壮族自治区农业科学院 | Selenium-enriched biological foliar fertilizer and preparation method and application thereof |
| CN113149792A (en) * | 2021-05-26 | 2021-07-23 | 重庆文理学院 | Special compound foliar fertilizer for rice and preparation method thereof |
| CN115368177A (en) * | 2022-09-07 | 2022-11-22 | 广西壮族自治区农业科学院 | Plant leaf surface enhancer and application thereof |
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Application publication date: 20161012 |