CN106220364A - A kind of composite foliage fertilizer and its preparation method and application - Google Patents
A kind of composite foliage fertilizer and its preparation method and application Download PDFInfo
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- CN106220364A CN106220364A CN201610624399.XA CN201610624399A CN106220364A CN 106220364 A CN106220364 A CN 106220364A CN 201610624399 A CN201610624399 A CN 201610624399A CN 106220364 A CN106220364 A CN 106220364A
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- foliage fertilizer
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- sargassum
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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
- C05G5/27—Dispersions, e.g. suspensions or emulsions
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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
-
- C—CHEMISTRY; METALLURGY
- C05—FERTILISERS; MANUFACTURE THEREOF
- C05B—PHOSPHATIC FERTILISERS
- C05B7/00—Fertilisers based essentially on alkali or ammonium orthophosphates
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- C—CHEMISTRY; METALLURGY
- C05—FERTILISERS; MANUFACTURE THEREOF
- C05G—MIXTURES OF FERTILISERS COVERED INDIVIDUALLY BY DIFFERENT SUBCLASSES OF CLASS C05; MIXTURES OF ONE OR MORE FERTILISERS WITH MATERIALS NOT HAVING A SPECIFIC FERTILISING ACTIVITY, e.g. PESTICIDES, SOIL-CONDITIONERS, WETTING AGENTS; FERTILISERS CHARACTERISED BY THEIR FORM
- C05G3/00—Mixtures of one or more fertilisers with additives not having a specially fertilising activity
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- Life Sciences & Earth Sciences (AREA)
- Chemical & Material Sciences (AREA)
- Organic Chemistry (AREA)
- Pest Control & Pesticides (AREA)
- Soil Sciences (AREA)
- Dispersion Chemistry (AREA)
- Environmental Sciences (AREA)
- Fertilizers (AREA)
Abstract
The invention provides a kind of composite foliage fertilizer, including seaweed extracted liquor 20～50%.Described seaweed extracted liquor, with fresh Sargassum as raw material, obtains through alginate lyase enzymolysis.Described composite foliage fertilizer also includes carbamide, soluble phosphate, solubility magnesium salt, Borax, soluble molybdenum salt.Present invention also offers the preparation method and application of this composite foliage fertilizer.Seaweed extracted liquor is combined by the present invention with nitrogen, phosphorus, potassium, magnesium, sulfur, boron, molybdenum, forms composite foliage fertilizer, beneficially plant absorption, solves hunger sign in plant shape.
Description
Technical field
The invention belongs to agricultural and technical field of composite fertilizer, be specifically related to a kind of compound leaf containing seaweed extracted liquor
Leaven and its preparation method and application.
Background technology
Foliage fertilizer refers to impose on plant leaf blade and can be absorbed the fertilizer of utilization.Foliage fertilizer can be directly entered from leaf portion plants
In object, participate in the metabolism of crop and organic building-up process.Especially in the crop growth later stage, its Root Absorption
Ability is weak, now uses foliage fertilizer and can supplement owing to absorbing from soil that nutrient is not enough and that bring nutrient wanes (nutritional deficiency disease
Shape).Additionally when crop root is severely impacted, foliage fertilizer can make up the nutritional deficiency that crop is suffered especially in time.
Therefore, Rational Application foliage fertilizer, can improve the yield of crop, quality.On the other hand, equivalent effect growth conditions is being reached
In the case of, spray foliage fertilizer and can improve utilization rate of fertilizer, the usage amount of chemical fertilizer and pesticide can not only be reduced, moreover it is possible to remove crop
Harmful pesticide residues, reduce environmental pollution with in agricultural product.Therefore, crop spray foliage fertilizer become non-polluted cultivation measure it
One.In the face of China's soil fertility degradation, agricultural production rely on the situation of chemical fertilizer, the blade face represented as emerging fertilizer day by day
Fertilizer, its research seems more and more important with application.
Along with going deep into of foliage fertilizer applied research, the type of foliage fertilizer is enriched constantly, and kind is continuously increased, in the market
The main nutritious type foliage fertilizer of foliage fertilizer product, adjustment type foliage fertilizer, biotype foliage fertilizer, unitary type trace element blade face
Fertilizer, composite foliage fertilizer etc..Wherein, composite foliage fertilizer owing to nutrition is complete, function is many, with strong points, have become as at present
One of the main product in market.
But considering outside the economic benefit brought of foliage fertilizer and social benefit, its ring that may bring should taken into full account
Border problem.Being all to be administered in fluid form due to foliage fertilizer, liquid nutrient has the biggest mobility, the most directly enters
Enter water body, biological chain or other ecosystem, be likely to destroy ecological balance and endanger the healthy and safe of people and animals.Therefore,
Environmental protection and multifunction are the emphasis of foliage fertilizer research and development from now on, and the sustainable development for agricultural provides safeguard.
Summary of the invention
For the problems referred to above, it is an object of the present invention to provide a kind of composite foliage fertilizer.This composite foliage fertilizer
Can have the seaweed extracted liquor of the effect such as regulating crop growth, prolongation fertilizer efficiency as main component with a kind of, include crop raw
A great number of elements, the moderate-element such as sulfur, magnesium, and the trace element such as boron, molybdenum such as long required nitrogen, phosphorus, thus provide for crop
Comprehensively nutrition, solves crop nutritional deficiency symptom.
In order to realize foregoing invention purpose, present invention employs following technical scheme:
A kind of composite foliage fertilizer, comprises seaweed extracted liquor；Described seaweed extracted liquor is prepared via a method which:
1) by the fresh Sargassum raw material pulverizing without ungrease treatment；
2) to step 1) obtain the fresh Sargassum pulverized adds water, Sargassum is 1:1 with the weight ratio of water, obtains Sargassum and mixes
Close liquid；Being subsequently adding alginate lyase, alginate lyase is 1:600～1:1000 with the weight ratio of Sargassum mixed liquor, stirs
Mix down, 35 DEG C～55 DEG C of enzymolysis 1～6 hours, obtain mixed liquor；
3) by step 2) the described mixed liquor that obtains is cooled to room temperature, centrifugal, separates supernatant and precipitation；
4) by step 3) the described supernatant concentration that obtains is 5%～7% to solid content weight percent concentration, to obtain final product.
Preferably, described Sargassum is the Brown algae of wild or artificial cultivation.
It is furthermore preferred that described Sargassum is one or more in limnetic dry kelp, dry Alga Sgrgassi Enerves and dry Thallus Laminariae.
Preferably, above-mentioned steps 1) in, the described fresh Sargassum raw material without ungrease treatment is pulverized by the following method:
Described the fresh Sargassum raw material without ungrease treatment is sheared to 5～10cm, cross colloid mill 2 minutes.
Preferably, in composite foliage fertilizer of the present invention, by weight percentage, described seaweed extracted liquor account for 20%～
50%；More preferably 30%～50%.
Preferably, composite foliage fertilizer of the present invention, also include carbamide, soluble phosphate, solubility magnesium salt, boron
Sand, soluble molybdenum salt.
As a preferred embodiment, on the basis of the gross mass of described composite foliage fertilizer, according to weight percent
Than meter, composite foliage fertilizer of the present invention includes:
Described seaweed extracted liquor 20%～50%, carbamide 5%～15%, soluble phosphate 5%～15%, soluble magnesium
Salt 5%～10%, Borax 0.5%～3%, soluble molybdenum salt 0.2%～0.5%, and the water of surplus.
Preferably, one or both in potassium dihydrogen phosphate and sodium dihydrogen phosphate of described soluble phosphate；More excellent
Elect potassium dihydrogen phosphate as.
Preferably, described solubility magnesium salt is magnesium sulfate.
Preferably, described soluble molybdenum salt is selected from sodium molybdate or ammonium molybdate；More preferably sodium molybdate.
As a further preferred embodiment, in percentage by weight, composite foliage fertilizer of the present invention includes:
Described seaweed extracted liquor 30～50%, carbamide 5～15%, potassium dihydrogen phosphate 5～15%, magnesium sulfate 5～10%, boron
Sand 0.5～3%, sodium molybdate 0.2～0.5%, and the water of surplus.
Further object is that the preparation method that described composite foliage fertilizer is provided, will include that described Sargassum carries
The each raw material taking liquid mixes according to described percentage by weight, at 20 DEG C～40 DEG C, mixes 1～3 hour, obtain in mixing apparatus
Uniform and stable suspension, to obtain final product.
Preferably, described mixing equipment is high-shear homogenizer.
A further object of the invention, is to provide described composite foliage fertilizer promoting that plant growing, correction plant lack
Application in element symptom.
Preferably, described application refers to suitably dilute described composite foliage fertilizer, directly sprays on plant leaf surface.
The method have the benefit that:
First, the composite foliage fertilizer environmental-protecting performance of the present invention highlights, and environment is all safe from harm by each component；The most main
Want the seaweed extracted liquor of composition, derive from natural Brown algae.Therefore, after the composite foliage fertilizer of the present invention sprays, even if entering
Soil, water system, also will not be to environment.
Secondly, composite foliage fertilizer of the present invention is by seaweed extracted liquor and nitrogen, phosphorus, potassium, magnesium, sulfur, boron, the organic knot of molybdenum
Altogether, the dynamical effect of low dosage is served.Rich in natural active matter in seaweed extracted liquor, it is possible to the life of regulation plant
Long；Alginic acid the most therein, has passivation to the heavy metal in soil, stops the absorption of crop heavy metal ion,
Alginic acid also has stronger water conservation, function of fertilizer retention, and extends fertilizer efficiency.Nitrogen is that cell grows main component, can promote branch and leaf
Luxuriant, improve quality.Phosphorus is the important substance basis of life, can promote root system, bloom and the growth promoter of seed and fruit.Potassium
Crop drought resistance, cold-resistant, disease and insect resistance, lodging tolerance, improving quality can be improved.Sulfur can promote the growth of root and seed.Magnesium is
Chlorophyllous important component part, is the root activator that absorbs other nutrients from soil.Boron is the composition of plant each several part
Composition, affects cell membrane and is formed, participate in merismatic cell differentiation procedure, promotes conversion and the operating of carbohydrate, adds
Fast vine growth and development, promotes precocity；Boron has good action to chlorophyllous formation and stability, moreover it is possible to the harmful phenol generalization of suppression
Compound and the biosynthesis of lignin；It addition, formation and the growth of plant generative organ are played an important role by boron, promote that pollen is sprouted
Sending out, stimulate pollen tube growth, it has impact especially, beneficially Seed Development to plant insemination, reduces the effects such as fruit drop；Execute
Boron can promote that vitamin C is formed, and ascorbic increase can improve crop anti-adversity；Boron has the work controlling moisture in crop body
With, strengthen colloid and combine the ability of moisture, therefore can strengthen the drought-resistant ability of crop.Nitrogen metabolism, promotion in molybdenum involved in plant body
The absorption of phosphorus and transhipment, the transport to carbohydrate also plays an important role.In a word, each group of the composite foliage fertilizer of the present invention
Divide synergism, it is possible to solve hunger sign in plant shape well.
Detailed description of the invention
Referring to specific embodiment, the present invention is described.Only it will be appreciated by those skilled in the art that these embodiments
For the present invention is described, it limits the scope of the present invention never in any form.
Experimental technique in following embodiment, if no special instructions, is conventional method.Medicine used in following embodiment
Material raw material, reagent material etc., if no special instructions, be commercially available purchase product.
Embodiment 1A kind of composite foliage fertilizer
Raw material consists of:
It is prepared via a method which:
Seaweed extracted liquor 300 kilograms, 50 kilograms of carbamide, dipotassium hydrogen phosphate 50 kilograms, 50 kilograms of magnesium sulfate, Borax 5 kilograms,
Sodium molybdate 2 kilograms, joins in 543 kg of water, is warming up to 20 DEG C, mixes 1 hour with high-shear homogenizer, and obtain is uniform and stable
Suspension be i.e. the target product of the present embodiment.
Wherein, seaweed extracted liquor is prepared via a method which:
1) 1000 kilograms of fresh sargassums are sheared to 5～10cm, cross colloid mill 2 minutes；
2) by step 1) Alga Sgrgassi Enerves that obtains adds 1000 kg of water, is subsequently adding alginate lyase 1 kilogram, and 35 DEG C
Under, the lower enzymolysis of stirring 2 hours, obtain mixed liquor；
3) by step 2) the described mixed liquor that obtains is cooled to room temperature, and it is centrifuged, 3000 turns/Min of rotating speed, separates 30 points
Clock, separates supernatant and precipitation；
4) by step 3) supernatant concentration that obtains to solid content 5.5% (percentage by weight), to obtain final product.
Embodiment 2A kind of composite foliage fertilizer
Raw material forms:
It is prepared via a method which:
Seaweed extracted liquor 400 kilograms, 100 kilograms of carbamide, dipotassium hydrogen phosphate 100 kilograms, 80 kilograms of magnesium sulfate, Borax 10 is public
Jin, sodium molybdate 3 kilograms, join in 307 kg of water, be warming up to 30 DEG C, mixes 2 hours in high-shear homogenizer, and obtain is equal
Even stable suspension is i.e. the target product of the present embodiment.
Described seaweed extracted liquor therein is prepared via a method which:
1) 1000 kilograms of fresh Thallus Laminariae (Thallus Eckloniae)s are sheared to 5～10cm, cross colloid mill 2 minutes；
2) by step 1) Thallus Laminariae (Thallus Eckloniae) that obtains adds 1000 kg of water, is subsequently adding alginate lyase 1.2 kilograms, at 40 DEG C
Stirring enzymolysis 4 hours, obtains mixed liquor；
3) by step 2) mixed liquor that obtains is cooled to room temperature, and it is centrifuged, 3000 turns/Min of rotating speed, separates 30 minutes,
Separate supernatant and precipitation；
4) by step 3) supernatant concentration that obtains to solid content 6% (percentage by weight), to obtain final product.
Embodiment 3A kind of composite foliage fertilizer
Raw material forms:
It is prepared via a method which:
Seaweed extracted liquor 500 kilograms, 150 kilograms of carbamide, dipotassium hydrogen phosphate 150 kilograms, 100 kilograms of magnesium sulfate, Borax 30
Kilogram, sodium molybdate 5 kilograms, join in 65 kg of water, be warming up to 40 DEG C, in high-shear homogenizer mix 3 hours, obtain is equal
Even stable suspension, is i.e. the target product of the present embodiment.
Wherein, raw material seaweed extracted liquor is prepared via a method which:
1) 1000 kilograms of fresh Thallus Laminariae are sheared to 5～10cm, cross colloid mill 2 minutes；
2) by step 1) the fresh Thallus Laminariae that obtains adds 1000 kg of water, is subsequently adding alginate lyase 1.4 kilograms, and 45
Stir enzymolysis 5 hours at DEG C, obtain mixed liquor；
3) by step 2) mixed liquor that obtains is cooled to room temperature, and it is centrifuged, 3000 turns/Min of rotating speed, separates 30 minutes,
Separate supernatant and precipitation；
4) by step 3) supernatant concentration that obtains to solid content 6.5% (percentage by weight), to obtain final product.
Test example 1The compliance test result of composite foliage fertilizer of the present invention
With Fructus Cucumidis sativi as trial crops, demonstrate the effect of fertilizer of the composite foliage fertilizer of the present invention.
1, EXPERIMENTAL DESIGN and mensuration
Trial crops: Fructus Cucumidis sativi, basic condition see table 1.
Table 1 trial crops basic condition
Test soil regime: Soil ingenious fertility is shown in Table 2.
Soil ingenious fertility tested by table 2
Test sets 3 process, processes 1 (embodiment 1) area 0.22hm2, process 2 (embodiment 3) area 0.12hm2, process
3 (common fertilizer, as comparison) area 0.12hm2。
Process 1 composite foliage fertilizer spraying clear water+embodiment of the present invention 1 preparation.Wherein by described compound leaf
Leaven is with 675ml/hm2Consumption, and dilute 700 times of uses, start foliage-spray 4 times from Fructus Cucumidis sativi field planting after 7 days, every minor tick
15 days.
Process 2 composite foliage fertilizers spraying clear water+embodiment of the present invention 3 preparation.Wherein by described compound leaf
Leaven is with 675ml/hm2Consumption, and dilute 700 times of uses, start foliage-spray 4 times from Fructus Cucumidis sativi field planting after 7 days, every minor tick
15 days.
Process 3 sprays clear water+conventional fertilizer application, and (by weight percentage, mixing solution is containing carbamide 15%, phosphoric acid hydrogen two
Potassium 15%, magnesium sulfate 10%, Borax 3%, sodium molybdate 0.5%, surplus is water), mixing solution is with 675ml/hm2Consumption, and
Dilute 700 times of uses, after Fructus Cucumidis sativi field planting 7 days, start foliage-spray 4 times, every minor tick 15 days.
Comparing in terms of Fructus Cucumidis sativi list melon weight, Fructus Cucumidis sativi melon length, cucumber yield 3, wherein assay method is:
Fructus Cucumidis sativi list melon weight, the long assay method of Fructus Cucumidis sativi melon: multidraw, avoid limit row, uses diagonal sampling method, chooses
Representative sampling point 5, each sampling point takes 10 Fructus Cucumidiss sativi, measures respectively, calculates meansigma methods.
Cucumber yield assay method: test plot individually gathers in the crops, individually counts product, is converted into a hectare yield.2, result of the test
With analysis
1) the Fructus Cucumidis sativi list melon weight of different disposal, the long measurement result of Fructus Cucumidis sativi melon are shown in Table 3.On the basis of processing 3, calculating processes 1
With process 2 on Fructus Cucumidis sativi list melon weight, the impacts of melon length, also it is shown in Table 3.
The Fructus Cucumidis sativi list melon weight of table 3 different disposal, melon are long
Understand from the above, process 1 (spraying clear water+embodiment 1), process 2 (spraying clear water+embodiment 3) and process 3
(spraying clear water+conventional fertilizer application) is compared, and Fructus Cucumidis sativi list melon increases by 10 grams and 15 grams the most respectively, and increment rate is respectively 10.5% He
15.8%；Fructus Cucumidis sativi melon length increases 1.4cm and 2.2cm respectively, and increment rate is respectively 5.6% and 8.8%.Illustrate that the present invention's is compound
Single melon melon weight that type foliage fertilizer can dramatically increase Fructus Cucumidis sativi is long with melon, and presents a certain amount effect relationship.
2) cucumber yield of different disposal is shown in Table 4.On the basis of processing 3, calculating processes 1 and processes 2 volume increase to Fructus Cucumidis sativi
Effect (units increased in production and rate of growth), is also shown in Table 4.
The cucumber yield of table 4 different disposal
| Process | Yield (kg/hm3) | Volume increase (kg/hm3) | Rate of growth (%) |
| 1 | 47190 | 4048 | 9.4 |
| 2 | 49311 | 6169 | 14.3 |
| 3 | 43142 | - | - |
Understand from the above, process 1 (spraying clear water+embodiment 1), process 2 (spraying clear water+embodiment 3) and process 3
(spraying clear water+conventional fertilizer application) is compared, and cucumber yield increases 4048kg/hm respectively2And 6169kg/hm2, rate of growth is respectively
9.4% and 14.3%.Illustrate that the composite foliage fertilizer of the present invention can dramatically increase the yield of Fructus Cucumidis sativi, and present certain
Dose-effect relationship.
To sum up, the composite foliage fertilizer of the present invention has obvious production-increasing function to Fructus Cucumidis sativi.
Specific description of embodiments of the present invention above is not limiting as the present invention, and those skilled in the art can be according to this
Various change or deformation are made in invention, without departing from the spirit of the present invention, all should belong to the model of claims of the present invention
Enclose.
Claims (10)
1. a composite foliage fertilizer, comprises seaweed extracted liquor；Described seaweed extracted liquor is prepared via a method which:
1) by the fresh Sargassum raw material pulverizing without ungrease treatment；
2) to step 1) obtain fresh Sargassum addition water, Sargassum is 1:1 with the weight ratio of water, obtains Sargassum mixed liquor；Then add
Entering alginate lyase, alginate lyase is 1:600～1:1000 with the weight ratio of Sargassum mixed liquor, under stirring, 35 DEG C～
55 DEG C of enzymolysis 1～6 hours, obtain mixed liquor；
3) by step 2) the described mixed liquor that obtains is cooled to room temperature, centrifugal, separates supernatant and precipitation；
4) by step 3) the described supernatant concentration that obtains is 5%～7% to solid content weight percent concentration, to obtain final product.
Composite foliage fertilizer the most according to claim 1, it is characterised in that described Sargassum is wild or artificial cultivation
Brown algae；
Preferably, one or more during described Sargassum is limnetic dry kelp, dry Alga Sgrgassi Enerves and dry Thallus Laminariae；
Preferably, described step 1) in, the described fresh Sargassum raw material without ungrease treatment is pulverized by the following method:
The described fresh Sargassum raw material without ungrease treatment is sheared to 5～10cm, crosses colloid mill 2 minutes.
Composite foliage fertilizer the most according to claim 1 and 2, it is characterised in that with the gross weight of described composite foliage fertilizer
On the basis of amount, by weight percentage, described seaweed extracted liquor accounts for 20%～50%；It is preferably 30%～50%.
Composite foliage fertilizer the most according to any one of claim 1 to 3, it is characterised in that also include carbamide, solubility
Phosphate, solubility magnesium salt, Borax, soluble molybdenum salt.
Composite foliage fertilizer the most according to claim 4, it is characterised in that be with the gross weight of described composite foliage fertilizer
Benchmark, in percentage by weight, described composite foliage fertilizer includes:
Described seaweed extracted liquor 20%～50%, carbamide 5%～15%, soluble phosphate 5%～15%, solubility magnesium salt
5%～10%, Borax 0.5%～3%, soluble molybdenum salt 0.2%～0.5%, and the water of surplus.
6. according to the composite foliage fertilizer described in claim 4 or 5, it is characterised in that described soluble phosphate is selected from phosphoric acid
One or both in potassium dihydrogen and sodium dihydrogen phosphate；More preferably potassium dihydrogen phosphate；
Described solubility magnesium salt is magnesium sulfate；
Described soluble molybdenum salt is selected from sodium molybdate or ammonium molybdate；More preferably sodium molybdate.
Composite foliage fertilizer the most according to any one of claim 1 to 3, it is characterised in that with described compound blade face
On the basis of fertile gross weight, in percentage by weight, described composite foliage fertilizer includes:
Described seaweed extracted liquor 30～50%, carbamide 5～15%, potassium dihydrogen phosphate 5～15%, magnesium sulfate 5～10%, Borax
0.5～3%, sodium molybdate 0.2～0.5%, and the water of surplus.
8. the preparation method of composite foliage fertilizer according to any one of claim 1 to 7, will include each of described seaweed extracted liquor
Raw material mixes according to described percentage by weight, at 20 DEG C～40 DEG C, mixes 1～3 hour, obtain uniform and stable in mixing apparatus
Suspension, to obtain final product；
Preferably, described mixing equipment is high-shear homogenizer.
9. prepared by composite foliage fertilizer or preparation method according to claim 8 according to any one of claim 1 to 7
Composite foliage fertilizer promoting plant growing, the application corrected in hunger sign in plant shape.
Application the most according to claim 9, it is characterised in that described application refers to dilute described composite foliage fertilizer,
Directly spray on plant leaf surface.
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Cited By (4)
| Publication number | Priority date | Publication date | Assignee | Title |
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| CN107736374A (en) * | 2017-09-13 | 2018-02-27 | 北京雷力海洋生物新产业股份有限公司 | A kind of method for being used to strengthen the photosynthetic capacity and growth of cucumber seedling |
| CN107736373A (en) * | 2017-09-13 | 2018-02-27 | 北京雷力海洋生物新产业股份有限公司 | A kind of active method for being used to improve the antioxidase of cucumber seedling |
| CN111377770A (en) * | 2020-03-23 | 2020-07-07 | 山东省科学院新材料研究所 | Foliar fertilizer for preparing chrysalidocarpus lutescens by using traditional Chinese medicine residues and manufacturing method thereof |
| CN114105707A (en) * | 2021-12-27 | 2022-03-01 | 浙江石原金牛生物科技有限公司 | Leaf fertilizer formula and preparation method thereof |
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