CN108129198A - A kind of sweet potato selenium-enriched fertilizer with water retaining function and preparation method thereof - Google Patents
A kind of sweet potato selenium-enriched fertilizer with water retaining function and preparation method thereof Download PDFInfo
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- CN108129198A CN108129198A CN201810001553.7A CN201810001553A CN108129198A CN 108129198 A CN108129198 A CN 108129198A CN 201810001553 A CN201810001553 A CN 201810001553A CN 108129198 A CN108129198 A CN 108129198A
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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
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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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Abstract
The present invention provides a kind of sweet potato selenium-enriched fertilizer with water retaining function and preparation method thereof, belong to chemical fertilizer field, nitrogenous fertilizer including 5~25 parts by weight, the phosphate fertilizer of 5~25 parts by weight, the potash fertilizer of 10~40 parts by weight, the water-retaining agent of 3~8 parts by weight, the selenium salt of 0.05~2 parts by weight and 25~45 parts by weight benefit-additives, during preparation, selenium salt is dissolved in after water and is uniformly mixed with other raw materials, by after being granulated, drying to obtain the final product.The selenium-enriched fertilizer selenium concentration is high and with water retaining function and nutrient slowly-released effect, and suitable for being applied in site preparation as base manure, sweet potato good absorption effect, utilization rate of fertilizer is high and has water retention property.
Description
Technical field
The present invention relates to chemical fertilizer field, and more particularly to a kind of selenium-rich water keeping fertilizer and preparation method thereof.
Background technology
Selenium is biological element needed by human, have improve the immunity of the human body, anti-aging, anti-cancer etc. enhance health
Function, selenium deficiency can lead to more than the 40 kinds of disease such as immunity of organisms decline, Keshan disease, Kaschin-Beck disease.China's most area soil
Selenium deficiency, the average daily intake of selenium is 26~32 μ g, far below 50~200 μ g/d standards of Chinese Soclety of Nutrition's recommendation, it is difficult to full
The demand of sufficient health.For the crowd of selenium deficiency area, because inorganic selenium is toxic, human body selenium-supply is cannot be used directly for, best
Selenium-supply approach is edible agricultural product or its processed goods rich in Organic Selenium, and selenium-enriched food is passed through by bioaugmentation
The inorganic selenium artificially added is converted into Organic Selenium and obtained by plant.Therefore, it is real to produce Se-rich farm products by application selenium fertilizer
The important channel of existing selenium deficiency area crowd's selenium-supply.
Sweet potato is the fourth-largest crop for being only second to rice, wheat and corn in China.Sweet potato breeding time is long, to fertilizer especially
It is that nitrogenous fertilizer is very sensitive, applied once is excessive, easily causes cauline leaf over growth, is unfavorable for root tuber and expands；If meeting again that nitrogenous fertilizer is insufficient
De- fertile phenomenon is generated in the later stage, makes the photosynthate that overground part manufactures few, yield is caused to decline.Again since Sweet potato stem crawls to give birth to
It is long, it pours water in the middle and late growth stage or top dressing is more difficult.Currently produce a kind of Nutrient Absorption rule for both having met sweet potato
Rule, and can disposably be applied near root system before sweet potato is transplanted, the fertilizer variety with water conservation and nutrient slowly-released function is solution
The certainly key of the above problem.
There are mainly two types of the methods of existing production selenium-rich sweet potato：First, by inorganic seleniums systems such as inorganic selenate or selenites
Into solution or selenium-enriched liquid fertilizer, Sweet Potato Leaf is directly sprayed on, plant is absorbed by blade, is converted into through plant
Organic Selenium is finally accumulated in sweet potato root tuber；Second is that inorganic selenate or selenite are produced into selenium-rich work(together with other fertilizer
Can be fertile, it applies, is absorbed through sweet potato root system, conversion is finally accumulated in root tuber in the soil.But the former easily causes greatly when spraying
Amount loss, and easily cause environmental pollution.The reasons such as the leaching of the latter Ze Yin soil fixings, irrigation or precipitation, lead to selenium
Loss and sweet potato root system reduce the absorption rate of selenium.
At present, occurs miscellaneous selenium-enriched fertilizer in the market, it is selenium-rich to be accounted in these selenium-enriched fertilizers most of
Liquid fertilizer is mainly used for producing Se-rich farm products by the method for foliage-spray.And part multi-component composite fertilizer containing selenium because of
Fixation problem of the soil to selenium is not solved, se use efficiency is not high.Meanwhile selenium-enriched liquid fertilizer is universal during foliage-spray
Serious in the presence of waste, protection is improper also easily to damage human body；And it is used for the multiple elements design selenium fertilizer product that root is applied and then generally deposits
Because selenium concentration it is low, crop assimilation effect difference and environmental pollution are led to problems such as by soil fixing and leaching loss.
Invention content
The purpose of the present invention is to provide a kind of selenium-enriched fertilizer, selenium concentration and its validity are high in the selenium-enriched fertilizer and have
Water conservation and slow release effect, crop good absorption effect, base is applied before being transplanted suitable for sweet potato.
Another object of the present invention is to provide a kind of preparation method of selenium-enriched fertilizer, the selenium-rich which prepares
Fertilizer can reduce fixation and nutrient availability of the soil to selenium, have water conservation and nutrient slowly-released effect, improve crop to selenium and
This season utilization rate of nutrient.
The present invention is solved its technical problem and is realized using following technical scheme.
A kind of selenium-enriched fertilizer, the nitrogenous fertilizer including 5~25 parts by weight, the phosphate fertilizer of 5~25 parts by weight, 10~40 parts by weight potassium
The benefit-additives of fertilizer, the selenium salt of the water-retaining agent of 3~8 parts by weight, 0.05~0.2 parts by weight and 25~45 parts by weight.Wherein,
Water-retaining agent is cross-linked polyacrylamide and the copolymer of polyacrylic acid sylvite, and selenium salt is at least one in selenate and selenite
Kind.
A kind of preparation method of selenium-enriched fertilizer, includes the following steps：
Selenium salt is dissolved in water, the first solution is made, by the first solution and nitrogenous fertilizer, potash fertilizer, phosphate fertilizer, benefit-additives and water conservation
Agent is uniformly mixed, be granulated, dry after up to selenium-enriched fertilizer.
The advantageous effect for the selenium-enriched fertilizer and preparation method thereof that present pre-ferred embodiments provide is：(1) fertilizer can be with
Effectively reduce fixation of the soil to selenium, reduce selenium with water leaching loss, improve this season utilization rate of the crop to selenium.(2) due in original
The copolymer of cross-linked polyacrylamide and polyacrylic acid sylvite is added in material as water-retaining agent, which has both water retaining function,
The drought-resistant ability of crop can be enhanced, promote crop root that selenium is absorbed and utilized.(3) selenium-enriched fertilizer also added nitrogen, phosphorus, potassium
Nutrients and effective additive with adsorption function are waited, the slow release effect of nutrient can be increased, fertilizer is improved and nutrient is held
Continuous deliverability.
Specific embodiment
Purpose, technical scheme and advantage to make the embodiment of the present invention are clearer, below will be in the embodiment of the present invention
Technical solution be clearly and completely described.The person that is not specified actual conditions in embodiment, builds according to normal condition or manufacturer
The condition of view carries out.Reagents or instruments used without specified manufacturer is the conventional production that can be obtained by commercially available purchase
Product.
A kind of selenium-enriched fertilizer, the nitrogenous fertilizer including 5~25 parts by weight, the potash fertilizer of 5~25 parts by weight, 10~40 parts by weight phosphorus
The benefit-additives of fertilizer, the selenium salt of the water-retaining agent of 3~8 parts by weight, 0.05~2 parts by weight and 25~45 parts by weight.
Nitrogenous fertilizer herein refers to the fertilizer containing nitrogen (N) element, for example, urea and other fertilizer containing ammonium etc..This hair
In bright, nitrogenous fertilizer preferably comprises urea and/or monoammonium phosphate, that is, the mixing of one or both of urea and ammonium sulfate
Object.Urea ((NH2)2CO) be mammal discharge internal nitrogenous metabolites, be colourless or white needles or rodlike crystallization
Body, industry or agriculture product are white slightly reddish Solid particle, odorless, tasteless.Nitrogen content is about 46.67%.Urea is a kind of
High concentration nitrogenous fertilizer belongs to neutral quick-acting fertilizer, it can also be used to produce a variety of compound fertilizers, not remain any nuisance in the soil
Matter, chronic administration do not have harmful effect to soil.Monoammonium phosphate (NH4H2PO3) also known as ammonium dihydrogen phosphate, it is white crystalline powder
End.
Phosphate fertilizer herein refers to the fertilizer containing phosphorus (P) element, and in of the invention, phosphate fertilizer includes calcium superphosphate and monoammonium phosphate
At least one of.Wherein, N element is not only contained in monoammonium phosphate, but also contains P element, therefore can not only be used as nitrogenous fertilizer, but also
Phosphate fertilizer can be used as.Calcium superphosphate is in addition to that can be that soil supplements P element, while can also supplement Ca elements.
Potash fertilizer refers to the fertilizer containing potassium (K) element, can select potassium sulfate, potassium chloride, potassium nitrate as potash fertilizer, this hair
In bright, it is preferred to use the source of manure of the potassium sulfate as potash fertilizer, potassium sulfate (K2SO4) it is colourless or white hexagon or iris tying
Brilliant or particulate powder.
The effect of water-retaining agent is to improve water suction and the water holding capacity of soil, and selenium-enriched fertilizer entire so in the soil can be more preferable
Be absorbed by crops, selenium element is prevented to be lost in, improves the validity of selenium element.Under soil moisture and the collective effect of nutrient,
Crop root is stimulated to grow and extend to ground moistening, nutrient density eminence, crop is promoted to absorb nutrient and moisture, enhances crop
Drought-resistant ability.Wherein, in the present invention, water-retaining agent is cross-linked polyacrylamide and the copolymer of polyacrylic acid sylvite.
Selenium salt is at least one of selenate and selenite.Selenate and selenite are inorganic selenium, selenate
Preferable dissolubility is respectively provided with selenite, the water that can be dissolved in well in soil, under the water retention of water-retaining agent, selenium member
Element can preferably be absorbed by crops utilization.In the present invention, it is preferred to use sodium selenite is added in as selenium salt in selenium-enriched fertilizer, similar
Selenium salt can also use other selenium salt such as potassium selenite, sodium selenate.
Benefit-additives can be that crop supplements some indispensable elements, and the nutrients such as nitrogen, phosphorus, potassium and selenium ion is generated
Suction-operated makes selenium and nitrogen, phosphorus, potassium nutrition ion be stored in for a long time in metastable soil layer, reduces soil and is made by chemistry
It with the fixation to selenium, reduces nitrogen, phosphorus, potassium nutrition and is migrated to deep soil, improve the utilization ratio of selenium and nitrogen, phosphorus, potassium nutrition.This
In invention, selecting attapulgite and weathered coal, attapulgite is also known as palygorskite or Palygorskite as benefit-additives, is a kind of
Has the clay mineral of magnesium silicate containing Shuifu County of chain layer structure, with good retain water and nutrients effect, especially to nitrogen, phosphorus, potassium
There is good suction-operated with nutrients ions such as selenium.Weathered coal waits into more humic under long-term weathering, oxidation
Acid can play the role of improveing rhizosphere soil.And weathered coal is porous structure, equally with good suction-operated.
In addition, during selenium-enriched fertilizer application provided by the invention, crop root can be directly imposed on, utilizes attapulgite therein
With the suction-operated of weathered coal, the rate of release of nitrogen, phosphorus, potassium nutrition and selenium element can be effectively controlled, prevents crop rhizosphere soils
The burning root phenomenon that nutrient density is excessively high and occurs, while make the supply of nutrient more longlasting.Contain selenium fertilizer with of the prior art other
Material is compared, selenium-enriched fertilizer of the invention solve other kind selenium fertilizer poor universalities, easily by soil fixing, validity is low, crop
The shortcomings that being difficult to absorb, it both can be used as base manure application, can also do top dressing application, when doing top dressing can root apply, row replacement, spread manuer in holes, ditch
It applies, even if pouring water or meeting heavy showers after fertilising, loss of effective components will not be caused.And material of the present invention is easy to get, and price is just
Preferably, preparation procedure is simple, use easy to spread.
When preparing selenium-enriched fertilizer, raw material is chosen by proportioning, selenium salt is dissolved in water is made the first solution, and with after crushing
The ingredients such as water-retaining agent, nitrogenous fertilizer, potash fertilizer, phosphate fertilizer and benefit-additives are mixed evenly, after drying is dry up to selenium-enriched fertilizer into
Product.Preferably, in the preparation, selenium salt is dissolved in water, the first solution is made, by nitrogenous fertilizer, potash fertilizer, phosphate fertilizer and benefit-additives powder
It is broken, be mixed to prepare the first fertilizer, the first solution is mixed and the second fertilizer is made in the first fertilizer, by the water-retaining agent after crushing
It is mixed with the second fertilizer, selenium-enriched fertilizer is obtained after dry.First by the first solution and nitrogenous fertilizer, potash fertilizer, phosphate fertilizer and benefit-additives into
Row mixing, the rear water-retaining agent that adds in are advantageous in that the first solution can be uniformly mixed with nitrogenous fertilizer, phosphate fertilizer and potash fertilizer well, be prevented
Water-retaining agent adsorbs a large amount of selenium salting liquid, and making distribution of the selenium element in selenium-enriched fertilizer, there are concentration differences.
Preferably, nitrogenous fertilizer, potash fertilizer, phosphate fertilizer and benefit-additives are crushed to grain size as 80~100 mesh, during preparation, by nitrogen
Fertilizer, potash fertilizer, phosphate fertilizer and benefit-additives and water-retaining agent cross 80~100 mesh sieve.The grain size of solid material each in this way is close,
The selenium-enriched fertilizer prepared is more uniform,
The feature and performance of the present invention are described in further detail below in conjunction with specific embodiment.
Embodiment 1
Choose the urea of 5 parts by weight, the calcium superphosphate of 25 parts by weight, the potassium sulfate of 25 amount parts, the concave convex rod of 15 parts by weight
It is spare to crushed 80-100 mesh sieve respectively for soil, the weathered coal of 10 parts by weight；By the urea crushed, calcium superphosphate, sulfuric acid
Potassium, weathered coal and attapulgite add in blender, stir evenly to obtain the first fertilizer.
The sodium selenite of the parts by weight of 0.1 parts by weight is weighed, is dissolved in the water of 1000 parts by weight, obtains the first solution；By
One solution is uniformly sprayed in the first fertilizer, and the second fertilizer, 5.5 parts by weight that will be crushed are uniformly mixed to obtain in blender
Water-retaining agent be added in the second fertilizer, blender is uniformly mixed to obtain mixture；Gained mixture is granulated, is dried, i.e.,
Obtain finished product selenium-rich Water-retaining slow-release fertilizer.
Embodiment 2
Choose the urea of 15 parts by weight, the calcium superphosphate of 5 parts by weight, the potassium sulfate of 40 parts by weight, the bumps of 25 parts by weight
It is spare to crushed 80-100 mesh sieve respectively for stick soil, the weathered coal of 20 parts by weight；By the urea crushed, calcium superphosphate, sulphur
Sour potassium, weathered coal and attapulgite add in blender, stir evenly to obtain the first fertilizer.
The sodium selenite of the parts by weight of 2 parts by weight is weighed, is dissolved in the water of 1000 parts by weight, obtains the first solution；By first
Solution is uniformly sprayed in the first fertilizer, and the second fertilizer, the guarantor of 8 parts by weight that will be crushed are uniformly mixed to obtain in blender
Aqua is added in the second fertilizer, and blender is uniformly mixed to obtain mixture；Gained mixture is granulated, dry to get into
Product selenium-rich Water-retaining slow-release fertilizer.
Embodiment 3
Choose the urea of 25 parts by weight, the calcium superphosphate of 10 parts by weight, the potassium sulfate of 15 amount parts, the concave convex rod of 20 parts by weight
It is spare to crushed 80-100 mesh sieve respectively for soil, the weathered coal of 15 parts by weight；By the urea crushed, calcium superphosphate, sulfuric acid
Potassium, weathered coal and attapulgite add in blender, stir evenly to obtain the first fertilizer.
The sodium selenite of the parts by weight of 0.05 parts by weight is weighed, is dissolved in the water of 1000 parts by weight, obtains the first solution；By
One solution is uniformly sprayed in the first fertilizer, and the second fertilizer is uniformly mixed to obtain in blender, by 3 parts by weight crushed
Water-retaining agent is added in the second fertilizer, and blender is uniformly mixed to obtain mixture；Gained mixture is granulated, dry to get
Finished product selenium-rich Water-retaining slow-release fertilizer.
Test example 1
Urea 40kg, calcium superphosphate 15kg, potassium sulfate 60kg, attapulgite 40kg, weathered coal 35kg are weighed respectively, respectively
It is spare to crushed 80-100 mesh sieve；The urea crushed, calcium superphosphate, potassium sulfate, weathered coal and attapulgite are added in
Blender stirs evenly to obtain the first fertilizer.
Sodium selenite 0.1kg is weighed, is dissolved in 1000 grams of water, obtains the first solution；First solution is uniformly sprayed on first
In fertilizer, and the second fertilizer is uniformly mixed to obtain in blender, the water-retaining agent 8kg crushed is added in the second fertilizer, is stirred
The machine of mixing is uniformly mixed to obtain mixture；Gained mixture is granulated, is dried to get finished product selenium-rich Water-retaining slow-release fertilizer.
The selenium-enriched fertilizer that the present embodiment obtains can be used for the selenium-rich of fresh type sweet potato to produce, and mu dosage is 50-60kg.
Test example 2
Urea 20kg, monoammonium phosphate 20Kg, potassium sulfate 25kg, attapulgite 20kg, weathered coal 15kg are weighed respectively, respectively
It is spare to crushed 80-100 mesh sieve；The urea crushed, calcium superphosphate, potassium sulfate, weathered coal and attapulgite are added in
Blender stirs evenly to obtain the first fertilizer.
Sodium selenite 0.1kg is weighed, is dissolved in 1000 grams of water, obtains the first solution；First solution is uniformly sprayed on first
In fertilizer, and the second fertilizer is uniformly mixed to obtain in blender, the water-retaining agent 8kg crushed is added in the second fertilizer, is stirred
The machine of mixing is uniformly mixed to obtain mixture；Gained mixture is granulated, is dried to get finished product selenium-rich Water-retaining slow-release fertilizer.
The selenium-enriched fertilizer that the present embodiment obtains can be used for the selenium-rich of purple sweetpotato to produce, and mu dosage is 60~80kg.
Test example 3
Urea 50kg, monoammonium phosphate 25kg, potassium sulfate 30kg, attapulgite 30kg, weathered coal 30kg are weighed respectively, respectively
It is spare to crushed 80-100 mesh sieve；The urea crushed, calcium superphosphate, potassium sulfate, weathered coal and attapulgite are added in
Blender stirs evenly to obtain the first fertilizer.
Sodium selenite 0.2kg is weighed, is dissolved in 1000 grams of water, obtains the first solution；First solution is uniformly sprayed on first
In fertilizer, and the second fertilizer is uniformly mixed to obtain in blender, the water-retaining agent 8kg crushed is added in the second fertilizer, is stirred
The machine of mixing is uniformly mixed to obtain mixture；Gained mixture is granulated, is dried to get finished product selenium-rich Water-retaining slow-release fertilizer.
The selenium-enriched fertilizer that the present embodiment obtains can be used for the production of starch type sweet potato.Mu dosage is 80~100kg.
Repeat to implement test example 1~3 to obtain enough selenium-enriched fertilizers, while according to Chinese patent CN100364936C
The record of middle embodiment 1 prepares enough selenium-enriched fertilizers for being used to be sprayed on leaf as a control group, sweet to fresh type respectively
The peaceful purple sweet potato of potato cigarette potato 25, purple sweetpotato 2 and starch type sweet potato quotient potato 19 are administered, to organic in the product that finally harvests
Se content is detected, using the results are shown in Table 1.
1 selenium-enriched fertilizer application effect table of table
By upper table data it is found that by adding in water-retaining agent and benefit-additives in selenium-enriched fertilizer, test example 1 to 4 obtains
Selenium-enriched fertilizer by soil application when the crop, selenium element can preferably be absorbed so that the crop finally harvested is rich in selenium
Element.
Embodiments described above is part of the embodiment of the present invention, instead of all the embodiments.The reality of the present invention
The detailed description for applying example is not intended to limit the range of claimed invention, but is merely representative of the selected implementation of the present invention
Example.Based on the embodiments of the present invention, those of ordinary skill in the art are obtained without making creative work
Every other embodiment, shall fall within the protection scope of the present invention.
Claims (10)
1. a kind of sweet potato selenium-enriched fertilizer, which is characterized in that the nitrogenous fertilizer including 5~25 parts by weight, the phosphate fertilizer of 5~25 parts by weight, 10
The potash fertilizer of~40 parts by weight, the water-retaining agent of 3~8 parts by weight, the selenium salt of 0.05~0.2 parts by weight and having for 25~45 parts by weight
Beneficial additive, copolymer of the water-retaining agent for cross-linked polyacrylamide and polyacrylic acid sylvite, the selenium salt for selenate and
At least one of selenite.
2. sweet potato selenium-enriched fertilizer according to claim 1, which is characterized in that the benefit-additives include attapulgite and
Weathered coal.
3. sweet potato selenium-enriched fertilizer according to claim 2, which is characterized in that the benefit-additives include 15~25 weight
The attapulgite of part and the weathered coal of 10~20 parts by weight.
4. sweet potato selenium-enriched fertilizer according to claim 1, which is characterized in that the nitrogenous fertilizer includes urea and/or phosphoric acid one
Ammonium.
5. sweet potato selenium-enriched fertilizer according to claim 1, which is characterized in that the phosphate fertilizer includes calcium superphosphate and phosphoric acid one
At least one of ammonium.
6. sweet potato selenium-enriched fertilizer according to claim 1, which is characterized in that the potash fertilizer is included in potassium sulfate and potassium chloride
At least one.
7. sweet potato selenium-enriched fertilizer according to claim 1, which is characterized in that the selenium salt is sodium selenite.
8. the preparation method of claim 1~7 any one of them sweet potato selenium-enriched fertilizer, which is characterized in that include the following steps：
The selenium salt is dissolved in water, the first solution is made, by first solution and the nitrogenous fertilizer, the phosphate fertilizer, the potash fertilizer, described
Benefit-additives and the water-retaining agent are uniformly mixed, be granulated, dry after up to the sweet potato selenium-enriched fertilizer.
9. the preparation method of sweet potato selenium-enriched fertilizer according to claim 8, which is characterized in that include the following steps：By institute
It states selenium salt and is dissolved in water and the first solution is made, the nitrogenous fertilizer, the potash fertilizer, the phosphate fertilizer and the benefit-additives are crushed, is mixed
It closes and the first fertilizer is made, first solution is mixed and the second fertilizer is made in first fertilizer, by the institute after crushing
It states water-retaining agent to mix with second fertilizer, up to the sweet potato selenium-enriched fertilizer after granulation, drying.
10. the preparation method of selenium-enriched fertilizer according to claim 8 or claim 9, which is characterized in that be granulated and use in step (8)
Disc granulation or extruder grain, the drying temperature are 80-120 DEG C；The nitrogenous fertilizer, the potash fertilizer, the phosphate fertilizer and described have
Beneficial additive is crushed to grain size as 80~100 mesh.
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| CN201810001553.7A CN108129198A (en) | 2018-01-02 | 2018-01-02 | A kind of sweet potato selenium-enriched fertilizer with water retaining function and preparation method thereof |
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Cited By (1)
| Publication number | Priority date | Publication date | Assignee | Title |
|---|---|---|---|---|
| CN109997640A (en) * | 2019-04-04 | 2019-07-12 | 广西壮族自治区农业科学院 | Selenium-rich sweet potato cultivation technology |
Citations (3)
| Publication number | Priority date | Publication date | Assignee | Title |
|---|---|---|---|---|
| US6372007B1 (en) * | 1999-01-29 | 2002-04-16 | Rafael Munoz | Organic compost |
| CN102503672A (en) * | 2011-10-25 | 2012-06-20 | 惠州市海纳粮油食品有限公司 | Selenium and ferrum-enriched organic inorganic fertilizer and application method thereof |
| CN106748411A (en) * | 2016-11-23 | 2017-05-31 | 河北省农林科学院谷子研究所 | A kind of Se-enriched microbial manure and preparation method thereof |
-
2018
- 2018-01-02 CN CN201810001553.7A patent/CN108129198A/en active Pending
Patent Citations (3)
| Publication number | Priority date | Publication date | Assignee | Title |
|---|---|---|---|---|
| US6372007B1 (en) * | 1999-01-29 | 2002-04-16 | Rafael Munoz | Organic compost |
| CN102503672A (en) * | 2011-10-25 | 2012-06-20 | 惠州市海纳粮油食品有限公司 | Selenium and ferrum-enriched organic inorganic fertilizer and application method thereof |
| CN106748411A (en) * | 2016-11-23 | 2017-05-31 | 河北省农林科学院谷子研究所 | A kind of Se-enriched microbial manure and preparation method thereof |
Cited By (1)
| Publication number | Priority date | Publication date | Assignee | Title |
|---|---|---|---|---|
| CN109997640A (en) * | 2019-04-04 | 2019-07-12 | 广西壮族自治区农业科学院 | Selenium-rich sweet potato cultivation technology |
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Application publication date: 20180608 |