CN112194526B - Foliar fertilizer for oak seedling stage in liaodong and preparation and application methods thereof - Google Patents
Foliar fertilizer for oak seedling stage in liaodong and preparation and application methods thereof Download PDFInfo
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- CN112194526B CN112194526B CN202011078131.3A CN202011078131A CN112194526B CN 112194526 B CN112194526 B CN 112194526B CN 202011078131 A CN202011078131 A CN 202011078131A CN 112194526 B CN112194526 B CN 112194526B
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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
- A01C21/005—Following a specific plan, e.g. pattern
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- 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
- C05G3/50—Surfactants; Emulsifiers
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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
Abstract
The invention discloses a foliar fertilizer for a seedling stage of Quercus liaotungensis and a preparation method and an application method thereof. Belongs to the technical field of plant cultivation and propagation. Comprises solution A, solution B and solution C; wherein the solution A contains urea KH2PO4Amino acid foliar fertilizer, rhamnolipid and water; the liquid B contains urea KH2PO4Amino acid foliar fertilizer, rhamnolipid and water; the C liquid contains urea KH2PO4Amino acid foliar fertilizer, rhamnolipid, chlormequat chloride and water. Methods of preparation and administration are also provided. The method is suitable for being used after the Quercus liaodonta seeding seedlings have mature leaves, can improve the strong seedling index of the Quercus liaodonta seedlings, is simple to operate by the application method, has long fertilizer efficiency duration time, and can improve the seedling quality of Quercus liaodonta seedling enterprises.
Description
Technical Field
The invention relates to the technical field of plant cultivation and propagation, in particular to a quercus liaotungensis seedling-stage foliar fertilizer and a preparation and application method thereof.
Background
Quercus liaotungensis (Quercus liaotungensis) is a deciduous tree of Quercus genus of Fagaceae family (Fagaceae), is an important tree species of deciduous broad-leaved forest in warm temperate zone, and is also a good mixed tree species for constructing needle-wide mixed forest in middle and low mountainous areas in North China.
The natural updating of the Quercus liaotungensis forest mainly comprises sprout tillers, but the phenomenon of serious growth degradation exists, and a soil seed bank is easily lost too early, so that the artificial seedling culture becomes a first choice measure for promoting population updating and building a broad-leaved mixed forest.
The foliar fertilization is a key link for the artificial seedling culture of the quercus liaotungensis, compared with the traditional soil fertilization, the foliar fertilization can directly and efficiently provide nutrient substances required by the growth of the quercus liaotungensis in the seedling stage, can create a soil environment with relatively barren nutrients, promotes the quercus liaotungensis seedlings to increase the number of absorbed roots, and improves the afforestation survival rate.
However, the current foliar fertilizer for the quercus robur seedling culture mainly contains macroelement inorganic nutrients, the fertilizer formula is lack of dynamic regulation, the retention time of the fertilizer liquid on the foliar surface is short, and the waste is serious. In addition, the large-area soil is caused by industrial seedling culture, and the spindly growth of the quercus liaotungensis in the later growth stage is often caused by high-density planting.
Therefore, the technical personnel in the field need to solve the problem of providing the foliar fertilizer which can meet the requirements of the quercus robusta seedlings in Liaodong, has lasting fertility and high efficiency and has the function of preventing overgrowth.
Disclosure of Invention
In view of the above, the invention provides a quercus liaotungensis seedling-stage foliar fertilizer and preparation and application methods thereof.
Solves the problems of the prior leaf fertilizer for the seedling raising of the Quercus liaotungensis, can meet the requirements of the seedling raising of the Quercus liaotungensis on fertility in different growth stages, has long retention time of the leaf surface of the fertilizer and is rich in plant growth active substances
In order to achieve the purpose, the invention adopts the following technical scheme:
a foliar fertilizer for the seedling stage of Quercus liaotungensis is characterized by comprising a liquid A, a liquid B and a liquid C; every 1000 parts by weight of the liquid A, the liquid B or the liquid C respectively comprises the following components:
solution A: 150-200 parts of urea KH2PO4100-120 parts of amino acid foliar fertilizer, 30-60 parts of rhamnolipid, 120-140 parts of rhamnolipid and the balance of water;
and B, liquid B: 400-500 parts of urea and KH2PO4100-120 parts of amino acid foliar fertilizer, 30-60 parts of rhamnolipid, 120-140 parts of rhamnolipid and the balance of water;
c, liquid; 100-120 parts of urea and KH2PO4180-220 parts of amino acid foliar fertilizer, 30-60 parts of rhamnolipid, 120-140 parts of chlormequat chloride and the balance of water.
Has the advantages that: the requirements for foliar fertilizers are different in different growth periods of the Quercus liaotungensis. In the early growth stage, the dosage of urea is small, and the burning of seedlings can be prevented. In the middle stage of growth, urea is added to promote the vegetative growth of Quercus liaotungensis. In the later growth stage, the dosage of urea is reduced, and the dosage of phosphate fertilizer and potash fertilizer is increased, so that the seedling resistance can be improved; the cycocel is added, the growth of the root system of the seedling can be promoted, and the transplanting survival rate is improved.
If the A, B liquid and the C liquid are not distinguished, the seedlings are easy to burn in the young period, the insufficient nutrient supply in the growth period is accelerated, the excessive growth occurs before the seedlings are out of nursery, and the transplanting survival rate of the seedlings is reduced.
Preferably: comprises solution A, solution B and solution C; every 1000 parts by weight of the liquid A, the liquid B or the liquid C respectively comprises the following components:
solution A: 200 portions of urea KH2PO4100 parts of amino acid foliar fertilizer 54 parts, 135 parts of rhamnolipid and the balance of water;
and B, liquid B: 500 portions of urea KH2PO4100 parts of amino acid foliar fertilizer 54 parts, 135 parts of rhamnolipid and the balance of water;
c, liquid; 100 parts of urea KH2PO4200 parts of amino acid foliar fertilizer 54 parts, 135 parts of rhamnolipid, 25 parts of chlormequat chloride and the balance of water.
Preferably: the water is groundwater with a pH of < 7.5.
The invention also provides a preparation method of the quercus liaotungensis seedling-stage foliar fertilizer, which comprises the following steps:
(1) weighing each component according to any quercus robur seedling-stage foliar fertilizer for standby;
(2) according to the method, urea and KH are firstly mixed2PO4Mixing, sequentially adding amino acid foliar fertilizer and rhamnolipid, and respectively preparing solution A and solution B;
(3) mixing urea with KH2PO4Mixing, and sequentially adding amino acid foliar fertilizer, rhamnolipid and chlormequat chloride to obtain solution C.
Has the advantages that the adding sequence of the components can not be adjusted freely, and the chemical stability of the amino acid and the rhamnolipid is not as good as that of the urea and the KH2PO4High, so late addition, i.e., filling, is used. Chlormequat chloride has the shortest aging period, so chlormequat chloride is added in the later period.
The invention also provides an application method of the quercus liaotungensis seedling-stage foliar fertilizer, which comprises the following steps:
(1) after the primary leaves of the Quercus liaotungensis are completely mature, applying the liquid A for 1 time every 8-10 days, and applying for 2-3 times in total;
(2) applying the liquid B for 1 time 5-6 times every 8-10 days after the liquid A is completely applied;
(3) applying the solution C for 1 time every 8-10 days after the solution B is applied until the nursery is released;
wherein each application needs to be uniformly applied to the surface of each blade.
Has the advantages that: according to the steps, the seedlings are not easy to burn; the vegetative growth of the seedlings can be accelerated; the nursery stock is not easy to grow in vain before outplanting, and the strong seedling index is high.
Preferably: and (2) sowing the Quercus liaodonta in the step (1) in a non-woven fabric seedling culture container or a plug seedling culture container.
Has the advantages that: the non-woven fabric and plug seedling method can improve the germination rate and the transplanting survival rate, and is also beneficial to the intensive industrial management of the seedlings.
Preferably: the mode of applying the solution A in the step (1) is mist spraying.
Has the advantages that: because the seedling just emerges at this moment, atomizing spraying can prevent that rivers are too big, impact matrix, avoids the root system to expose.
Preferably: the mode of applying the liquid B and the liquid C in the steps (2) and (3) is shower pouring.
Has the advantages that: the root system of the nursery stock at this stage is deep into the substrate, and meanwhile, the water yield of the shower head is high, so that the labor intensity can be reduced.
Preferably: the time for applying the solution A, the solution B or the solution C is windless sunny day; or 8-9 am or 4-6 pm in cloudy days.
Preferably: the environmental requirements of the step (1) are that the shading degree is 30-50%, the humidity is 40-80%, and the temperature is 25-35 ℃;
the environmental requirements of the step (2) are that the shading degree is 10-30%, the humidity is 20-60%, and the temperature is 25-35 ℃;
the environmental requirements of the step (3) are that the shading degree is 0%, the humidity is 20-60%, and the temperature is 25-35 ℃.
Further: the environmental requirements of the step (1) are that the shading degree is 40%, the humidity is 60%, and the temperature is 28 ℃;
the environmental requirements of the step (2) are that the shading degree is 20%, the humidity is 40%, and the temperature is 28 ℃;
the environmental requirements of step (3) are 0% shading degree, 40% humidity and 28 ℃ temperature.
Has the advantages that: the oak seedling stage needs higher environmental humidity and weaker environmental light intensity, so the shading degree of the step (1) is the maximum, and the humidity is the highest. Along with the growth of seedlings, the requirements of the seedlings on light intensity are gradually increased, the requirements on environment humidity are reduced, and the occurrence of plant diseases and insect pests can be effectively reduced by using lower environment humidity, so that the culture conditions of the step (2) are adopted. Before outplanting, hardening seedlings are needed to shorten the seedling revival period after seedling transplantation, so that leaves are preserved as much as possible, and the seedling transplantation survival rate is improved.
According to the technical scheme, compared with the prior art, the invention discloses the leaf fertilizer for the seedling stage of the quercus liaotungensis and the preparation and application methods thereof, and the leaf fertilizer and the application method provided by the invention have the beneficial effects that the leaf fertilizer and the application method are suitable for being used after the quercus liaotungensis seeding seedlings have mature leaves, the strong seedling index of the quercus liaotungensis seedlings can be improved, the application method is simple to operate, the fertilizer efficiency lasts for a long time, and the seedling quality of quercus liaotungensis seedling enterprises can be improved.
Drawings
In order to more clearly illustrate the embodiments of the present invention or the technical solutions in the prior art, the drawings used in the description of the embodiments or the prior art will be briefly described below, it is obvious that the drawings in the following description are only embodiments of the present invention, and for those skilled in the art, other drawings can be obtained according to the provided drawings without creative efforts.
FIG. 1 is a schematic diagram showing comparison of a whole plant at 120 days when a foliar fertilizer is sprayed in an example 2 and comparative examples 1 and 2, wherein the comparative examples 1, 2 and the example 2 are shown from left to right,
FIG. 2 is a schematic diagram showing the comparison of the growth at 120 days when the foliar fertilizer is sprayed in the example 2 and the comparative examples 1 and 2, wherein the comparative example 2, the example 2 and the comparative example 1 are arranged from the left column to the right column in sequence.
Detailed Description
The technical solutions in the embodiments of the present invention will be clearly and completely described below with reference to the drawings in the embodiments of the present invention, and it is obvious that the described embodiments are only a part of the embodiments of the present invention, and not all of the embodiments. All other embodiments, which can be derived by a person skilled in the art from the embodiments given herein without making any creative effort, shall fall within the protection scope of the present invention.
The embodiment of the invention discloses a quercus liaotungensis seedling-stage foliar fertilizer and a preparation method and an application method thereof.
Example 1
A foliar fertilizer for Quercus liaotungensis seedling stage comprises solution A, solution B and solution C; the liquid A, the liquid B or the liquid C respectively comprises the following components in each 1000 g:
solution A: 150g of urea KH2PO4120g of amino acid foliar fertilizer, 30g of rhamnolipid, 140g of rhamnolipid and the balance of water;
and B, liquid B: urea 400g, KH2PO4120g of amino acid foliar fertilizer, 30g of rhamnolipid, 140g of rhamnolipid and the balance of water;
c, liquid; urea 100g, KH2PO4220g, 30g of amino acid foliar fertilizer, 140g of rhamnolipid, 20g of chlormequat chloride and the balance of water.
Example 2
A foliar fertilizer for Quercus liaotungensis seedling stage comprises solution A, solution B and solution C; the liquid A, the liquid B or the liquid C respectively comprises the following components in each 1000 g:
solution A: 200g of urea KH2PO4100g of amino acid foliar fertilizer, 54g of rhamnolipid, 135g of rhamnolipid and the balance of water;
and B, liquid B: 500g of urea KH2PO4100g of amino acid foliar fertilizer, 54g of rhamnolipid, 135g of rhamnolipid and the balance of water;
c, liquid; urea 100g, KH2PO4200g of amino acid foliar fertilizer, 54g of rhamnolipid, 135g of chlormequat chloride, 25g of chlormequat chloride and the balance of water.
Example 3
A foliar fertilizer for Quercus liaotungensis seedling stage comprises solution A, solution B and solution C; the liquid A, the liquid B or the liquid C respectively comprises the following components in each 1000 g:
solution A: 200g of urea KH2PO4100g of amino acid60g of leaf fertilizer, 120g of rhamnolipid and the balance of water;
and B, liquid B: 500g of urea KH2PO4100g of amino acid foliar fertilizer, 60g of rhamnolipid, 120g of rhamnolipid and the balance of water;
c, liquid; 120g of urea KH2PO4180g, 60g of amino acid foliar fertilizer, 120g of rhamnolipid, 30g of chlormequat chloride and the balance of water.
In order to further optimize the technical scheme: the water is groundwater with a pH of < 7.5.
The preparation method of the quercus liaotungensis seedling-stage foliar fertilizer in the embodiments 1 to 3 comprises the following steps:
(1) weighing the components for later use;
(2) according to the method, urea and KH are firstly mixed2PO4Mixing, sequentially adding amino acid foliar fertilizer and rhamnolipid, and respectively preparing solution A and solution B;
(3) mixing urea with KH2PO4Mixing, and sequentially adding amino acid foliar fertilizer, rhamnolipid and chlormequat chloride to obtain solution C.
The application method of the quercus liaotungensis seedling-stage foliar fertilizer in the embodiments 1 to 3 comprises the following steps:
(1) after the primary leaves of the Quercus liaotungensis are completely mature, applying the liquid A for 1 time every 8-10 days, and applying for 2-3 times in total;
(2) applying the liquid B for 1 time 5-6 times every 8-10 days after the liquid A is completely applied;
(3) applying the solution C for 1 time every 8-10 days after the solution B is applied until the nursery is released;
wherein each application needs to be uniformly applied to the surface of each blade.
In order to further optimize the technical scheme: the Quercus liaodonta seedlings in the step (1) are seedlings sowed in a non-woven fabric seedling culture container or a plug seedling culture container.
In order to further optimize the technical scheme: the mode of applying the solution A in the step (1) is mist spraying.
In order to further optimize the technical scheme: the mode of applying the liquid B and the liquid C in the steps (2) and (3) is shower pouring.
In order to further optimize the technical scheme: the time for applying the solution A, the solution B or the solution C is windless sunny day; or 8-9 am or 4-6 pm in cloudy days.
In order to further optimize the technical scheme:
the environmental requirements of the step (1) are that the shading degree is 30-50% (optimally 40%), the humidity is 40-80% (optimally 60%), and the temperature is 25-35 ℃ (optimally 28 ℃);
the environmental requirements of the step (2) are that the shading degree is 10-30% (optimally 20%), the humidity is 20-60% (optimally 40%), and the temperature is 25-35 ℃ (optimally 28 ℃);
the environmental requirements of the step (3) are that the shading degree is 0%, the humidity is 20-60% (optimally 40%), and the temperature is 25-35 ℃ (optimally 28 ℃).
Comparative example 1
The difference between the quercus liaotungensis seedling-stage foliar fertilizer and the components in the example 2 is that the components of the liquid A, the liquid B and the liquid C do not contain amino acid foliar fertilizer and rhamnolipid.
After the primary leaves of the Quercus liaotungensis seedlings planted in the non-woven fabric seedling raising container are completely mature, spraying foliar fertilizer A liquid for 1 time in a fog shape every 10 days, uniformly spraying the surface of each Quercus liaotungensis leaf for 3 times, wherein the seedling raising conditions are that the shade degree is 30%, the humidity is 60 +/-15% and the temperature is 30 +/-5 ℃. After 31 days of culturing Quercus liaotungensis seedlings, spraying the foliar fertilizer B liquid for 1 time by a sprinkler every 10 days, uniformly spraying the foliar fertilizer B liquid on the surfaces of the Quercus liaotungensis leaves for 6 times, and culturing the seedlings under the conditions of the shading degree of 30%, the humidity of 50 +/-10% and the temperature of 30 +/-5 ℃. After 91 days of culturing Quercus liaotungensis seedlings, sprinkling the foliar fertilizer C liquid for 1 time in the Quercus liaotungensis seedling stage every 10 days, uniformly watering the surfaces of the Quercus liaotungensis leaves, and spraying for 6 times, wherein the seedling culturing conditions are 0 percent of shading degree, 40 +/-10 percent of humidity and 30 +/-5 ℃ of temperature.
Comparative example 2
The difference between the quercus liaotungensis seedling-stage foliar fertilizer and the components in the embodiment 2 is that the rhamnolipid content is increased, and the dosage of the amino acid foliar fertilizer is reduced, specifically:
liquid A, urea 200g, KH2PO4100g of amino acid foliar fertilizer, 20g of rhamnolipid and 270g of rhamnolipid; liquid B, urea 500g, KH2PO4100g of amino acid foliar fertilizer, 20g of rhamnolipid and 270g of rhamnolipid; liquid C, urea 100g, KH2PO4200g, amino20g of acid foliar fertilizer and 270g of rhamnolipid. The solvent used for the preparation was groundwater at the site of the example.
After the primary leaves of the Quercus liaotungensis seedlings planted in the non-woven fabric seedling raising container are completely mature, spraying foliar fertilizer A liquid for 1 time in a fog shape every 10 days, uniformly spraying the surface of each Quercus liaotungensis leaf for 3 times, wherein the seedling raising conditions are that the shade degree is 30%, the humidity is 60 +/-15% and the temperature is 30 +/-5 ℃. After 31 days of culturing Quercus liaotungensis seedlings, spraying the foliar fertilizer B liquid for 1 time by a sprinkler every 10 days, uniformly spraying the foliar fertilizer B liquid on the surfaces of the Quercus liaotungensis leaves for 6 times, and culturing the seedlings under the conditions of the shading degree of 30%, the humidity of 50 +/-10% and the temperature of 30 +/-5 ℃. After 91 days of culturing Quercus liaotungensis seedlings, sprinkling the foliar fertilizer C liquid for 1 time in the Quercus liaotungensis seedling stage every 10 days, uniformly watering the surfaces of the Quercus liaotungensis leaves, and spraying for 6 times, wherein the seedling culturing conditions are 0 percent of shading degree, 40 +/-10 percent of humidity and 30 +/-5 ℃ of temperature.
To further demonstrate the effect of the present invention, the following observations and data statistics were made in example 2 as well as comparative examples: 120 days after sowing (see figures 1 and 2), 20 plants are randomly selected in each case, the plant height, the ground diameter, the dry weight of the overground part and the dry weight of the underground part are counted, and the strong seedling index of each plant is calculated according to a formula 1, and the specific data are shown in a table 1.
Wherein, formula 1: strong shoot index [ (ground diameter/height) + (underground part dry weight/overground part dry weight) ] × (overground part dry weight + underground part dry weight).
TABLE 1 seedling phenotype index
| Plant height (cm) | Ground diameter (mm) | Aerial parts dry weight (g) | Underground part dry weight (g) | Seedling strengthening index | |
| Example 2 | 38.1a | 6.0a | 1.2a | 5.0a | 26.0a |
| Comparative example 1 | 34.4a | 5.2a | 0.9a | 2.8b | 12.1b |
| Comparative example 2 | 30.4a | 5.8a | 0.8b | 2.3b | 9.1b |
Note: the different letter designations differ significantly at the level of P < 0.05.
The results show that the underground part dry weight and strong seedling index of example 2 are significantly higher than the comparative example. The foliar fertilizer and the application method provided by the invention are suitable for being used after the sowing seedlings of the Quercus liaodonta have mature leaves, can improve the strong seedling index of the Quercus liaodonta seedlings, are simple to operate, have long fertilizer efficiency duration time, and can improve the seedling quality of Quercus liaodonta seedling enterprises.
The embodiments in the present description are described in a progressive manner, each embodiment focuses on differences from other embodiments, and the same and similar parts among the embodiments are referred to each other.
The previous description of the disclosed embodiments is provided to enable any person skilled in the art to make or use the present invention. Various modifications to these embodiments will be readily apparent to those skilled in the art, and the generic principles defined herein may be applied to other embodiments without departing from the spirit or scope of the invention. Thus, the present invention is not intended to be limited to the embodiments shown herein but is to be accorded the widest scope consistent with the principles and novel features disclosed herein.
Claims (10)
1. A foliar fertilizer for the seedling stage of Quercus liaotungensis is characterized by comprising a liquid A, a liquid B and a liquid C; every 1000 parts by weight of the liquid A, the liquid B or the liquid C respectively comprises the following components:
solution A: 150-200 parts of urea KH2PO4100-120 parts of amino acid foliar fertilizer, 30-60 parts of rhamnolipid, 120-140 parts of rhamnolipid and the balance of water;
and B, liquid B: 400-500 parts of urea and KH2PO4100-120 parts of amino acid foliar fertilizer, 30-60 parts of rhamnolipid, 120-140 parts of rhamnolipid and the balance of water;
c, liquid; 100-120 parts of urea and KH2PO4180-220 parts of amino acid foliar fertilizer, 30-60 parts of rhamnolipid, 120-140 parts of chlormequat chloride and the balance of water.
2. The foliar fertilizer for the seedling stage of quercus liaotungensis as claimed in claim 1, which comprises a liquid A, a liquid B and a liquid C; every 1000 parts by weight of the liquid A, the liquid B or the liquid C respectively comprises the following components:
solution A: 200 portions of urea KH2PO4100 parts of amino acid foliar fertilizer 54 parts, 135 parts of rhamnolipid and the balance of water;
and B, liquid B: 500 portions of urea KH2PO4100 parts of amino acid foliar fertilizer 54 parts, 135 parts of rhamnolipid and the balance of water;
c, liquid; 100 parts of urea KH2PO4200 parts of amino acid foliar fertilizer 54 parts, 135 parts of rhamnolipid, 25 parts of chlormequat chloride and the balance of water.
3. The foliar fertilizer for the seedling stage of quercus liaotungensis as claimed in claim 1 or 2, wherein: the water is groundwater with a pH < 7.5.
4. A preparation method of a leaf fertilizer for a seedling stage of Quercus liaotungensis is characterized by comprising the following steps:
(1) weighing each component according to the foliar fertilizer in the seedling stage of Quercus liaotungensis as claimed in any one of claims 1 to 3 for later use;
(2) according to the method, urea and KH are firstly mixed2PO4Mixing, sequentially adding amino acid foliar fertilizer and rhamnolipid, and respectively preparing solution A and solution B;
(3) mixing urea with KH2PO4Mixing, and sequentially adding amino acid foliar fertilizer, rhamnolipid and chlormequat chloride to obtain solution C.
5. The application method of the foliar fertilizer for the seedling stage of quercus liaotungensis as claimed in any one of claims 1 to 3, is characterized by comprising the following steps:
(1) after the primary leaves of the Quercus liaotungensis are completely mature, applying the liquid A for 1 time every 8-10 days, and applying for 2-3 times in total;
(2) applying the liquid B for 1 time 5-6 times every 8-10 days after the liquid A is completely applied;
(3) applying the solution C for 1 time every 8-10 days after the solution B is applied until the nursery is released; wherein each application needs to be uniformly applied to the surface of each blade.
6. The method of application of claim 5, wherein: and (2) sowing the Quercus liaodonta in the non-woven fabric seedling culture container or the plug seedling culture container in the step (1).
7. The method of application according to claim 6, characterized in that: the mode of applying the solution A in the step (1) is mist spraying.
8. The method of application according to claim 7, characterized in that: in the steps (2) and (3), the liquid B and the liquid C are applied by shower head.
9. The application method of the foliar fertilizer for the seedling stage of quercus nigra as claimed in claim 8, wherein: the time for applying the solution A, the solution B or the solution C is windless sunny days;
or 8-9 am or 4-6 pm in cloudy days.
10. The application method according to any one of claims 5 to 9, characterized in that: the environmental requirements of the step (1) are that the shading degree is 30-50%, the humidity is 40-80%, and the temperature is 25-35 ℃;
the environmental requirements of the step (2) are that the shading degree is 10-30%, the humidity is 20-60%, and the temperature is 25-35 ℃;
the environmental requirements of the step (3) are that the shading degree is 0%, the humidity is 20-60%, and the temperature is 25-35 ℃.
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