CN113396918A - Conditioner for improving sugar content and photosynthetic efficiency of sugarcane - Google Patents
Conditioner for improving sugar content and photosynthetic efficiency of sugarcane Download PDFInfo
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- CN113396918A CN113396918A CN202110558882.3A CN202110558882A CN113396918A CN 113396918 A CN113396918 A CN 113396918A CN 202110558882 A CN202110558882 A CN 202110558882A CN 113396918 A CN113396918 A CN 113396918A
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- A—HUMAN NECESSITIES
- A01—AGRICULTURE; FORESTRY; ANIMAL HUSBANDRY; HUNTING; TRAPPING; FISHING
- A01N—PRESERVATION OF BODIES OF HUMANS OR ANIMALS OR PLANTS OR PARTS THEREOF; BIOCIDES, e.g. AS DISINFECTANTS, AS PESTICIDES OR AS HERBICIDES; PEST REPELLANTS OR ATTRACTANTS; PLANT GROWTH REGULATORS
- A01N43/00—Biocides, pest repellants or attractants, or plant growth regulators containing heterocyclic compounds
- A01N43/34—Biocides, pest repellants or attractants, or plant growth regulators containing heterocyclic compounds having rings with one nitrogen atom as the only ring hetero atom
- A01N43/36—Biocides, pest repellants or attractants, or plant growth regulators containing heterocyclic compounds having rings with one nitrogen atom as the only ring hetero atom five-membered rings
- A01N43/38—Biocides, pest repellants or attractants, or plant growth regulators containing heterocyclic compounds having rings with one nitrogen atom as the only ring hetero atom five-membered rings condensed with carbocyclic rings
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- A—HUMAN NECESSITIES
- A01—AGRICULTURE; FORESTRY; ANIMAL HUSBANDRY; HUNTING; TRAPPING; FISHING
- A01G—HORTICULTURE; CULTIVATION OF VEGETABLES, FLOWERS, RICE, FRUIT, VINES, HOPS OR SEAWEED; FORESTRY; WATERING
- A01G22/00—Cultivation of specific crops or plants not otherwise provided for
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- A—HUMAN NECESSITIES
- A01—AGRICULTURE; FORESTRY; ANIMAL HUSBANDRY; HUNTING; TRAPPING; FISHING
- A01G—HORTICULTURE; CULTIVATION OF VEGETABLES, FLOWERS, RICE, FRUIT, VINES, HOPS OR SEAWEED; FORESTRY; WATERING
- A01G7/00—Botany in general
- A01G7/06—Treatment of growing trees or plants, e.g. for preventing decay of wood, for tingeing flowers or wood, for prolonging the life of plants
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- A—HUMAN NECESSITIES
- A01—AGRICULTURE; FORESTRY; ANIMAL HUSBANDRY; HUNTING; TRAPPING; FISHING
- A01N—PRESERVATION OF BODIES OF HUMANS OR ANIMALS OR PLANTS OR PARTS THEREOF; BIOCIDES, e.g. AS DISINFECTANTS, AS PESTICIDES OR AS HERBICIDES; PEST REPELLANTS OR ATTRACTANTS; PLANT GROWTH REGULATORS
- A01N37/00—Biocides, pest repellants or attractants, or plant growth regulators containing organic compounds containing a carbon atom having three bonds to hetero atoms with at the most two bonds to halogen, e.g. carboxylic acids
- A01N37/12—Biocides, pest repellants or attractants, or plant growth regulators containing organic compounds containing a carbon atom having three bonds to hetero atoms with at the most two bonds to halogen, e.g. carboxylic acids containing the group, wherein Cn means a carbon skeleton not containing a ring; Thio analogues thereof
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- A—HUMAN NECESSITIES
- A01—AGRICULTURE; FORESTRY; ANIMAL HUSBANDRY; HUNTING; TRAPPING; FISHING
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- A01N43/00—Biocides, pest repellants or attractants, or plant growth regulators containing heterocyclic compounds
- A01N43/34—Biocides, pest repellants or attractants, or plant growth regulators containing heterocyclic compounds having rings with one nitrogen atom as the only ring hetero atom
- A01N43/40—Biocides, pest repellants or attractants, or plant growth regulators containing heterocyclic compounds having rings with one nitrogen atom as the only ring hetero atom six-membered rings
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- A—HUMAN NECESSITIES
- A01—AGRICULTURE; FORESTRY; ANIMAL HUSBANDRY; HUNTING; TRAPPING; FISHING
- A01N—PRESERVATION OF BODIES OF HUMANS OR ANIMALS OR PLANTS OR PARTS THEREOF; BIOCIDES, e.g. AS DISINFECTANTS, AS PESTICIDES OR AS HERBICIDES; PEST REPELLANTS OR ATTRACTANTS; PLANT GROWTH REGULATORS
- A01N59/00—Biocides, pest repellants or attractants, or plant growth regulators containing elements or inorganic compounds
- A01N59/16—Heavy metals; Compounds thereof
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- A—HUMAN NECESSITIES
- A01—AGRICULTURE; FORESTRY; ANIMAL HUSBANDRY; HUNTING; TRAPPING; FISHING
- A01N—PRESERVATION OF BODIES OF HUMANS OR ANIMALS OR PLANTS OR PARTS THEREOF; BIOCIDES, e.g. AS DISINFECTANTS, AS PESTICIDES OR AS HERBICIDES; PEST REPELLANTS OR ATTRACTANTS; PLANT GROWTH REGULATORS
- A01N59/00—Biocides, pest repellants or attractants, or plant growth regulators containing elements or inorganic compounds
- A01N59/16—Heavy metals; Compounds thereof
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- A—HUMAN NECESSITIES
- A01—AGRICULTURE; FORESTRY; ANIMAL HUSBANDRY; HUNTING; TRAPPING; FISHING
- A01N—PRESERVATION OF BODIES OF HUMANS OR ANIMALS OR PLANTS OR PARTS THEREOF; BIOCIDES, e.g. AS DISINFECTANTS, AS PESTICIDES OR AS HERBICIDES; PEST REPELLANTS OR ATTRACTANTS; PLANT GROWTH REGULATORS
- A01N61/00—Biocides, pest repellants or attractants, or plant growth regulators containing substances of unknown or undetermined composition, e.g. substances characterised only by the mode of action
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Abstract
The invention discloses a conditioner for improving sugar content and photosynthetic efficiency of sugarcane and application thereof, comprising auxin, mepiquat chloride and cell divisionPlain, diethyl aminoethyl hexanoate, CuSO4·5H2O、FeSO4·7H2O and MnSO4The raw materials are uniformly mixed and then added with a diluting solvent, and the raw materials comprise the following raw material components in parts by weight: the concentration of auxin is 0.1-15 g/L, the concentration of mepiquat chloride is 0.1-30 g/L, the concentration of cytokinin is 0.01-10 g/L, and the concentration of diethyl aminoethyl hexanoate is 0.1-20 g/L, CuSO4·5H2The concentration of O is 0.1 g/L-10 g/L, FeSO4·7H2The concentration of O is 0.1 g/L-10 g/L, MnSO4The concentration is 0.1 g/L-10 g/L. The conditioner for improving the sugar content and the photosynthetic efficiency of the sugarcane and the application thereof can adjust the net photosynthetic rate of sugarcane leaves, promote the synthesis and the accumulation of the sugar content of the sugarcane, and accelerate the reduction of the sugar content to be converted into the sugar content at the same time by spraying the product on the leaf surfaces in the early maturing stage of a sugarcane process, thereby improving the sugar content of the sugarcane and leading the sugarcane to obtain higher sugar content during the harvest.
Description
Technical Field
The invention relates to the technical field of agricultural cultivation, in particular to a conditioner for improving sugar content and photosynthetic efficiency of sugarcane.
Background
Sugarcane is a very important sugar crop in the world, belongs to the family of gramineous sugarcane, and has the characteristics of preference to high temperature and illumination and the like, the growth of the sugarcane is in the same season as rain and heat, the Yangtze river in Guangdong province belongs to a suitable sugarcane planting area, the yield of the sugarcane in the Zhanjiang area accounts for 90% of the total yield of the Guangdong province in recent years, and due to the problems of sugarcane continuous cropping, variety degradation, improper cultivation management, insufficient maturity or over maturity during chopping and the like, the sweetness is reduced, and the sugar yield of the sugarcane is influenced, so that the technical measures for improving the photosynthesis efficiency of the sugarcane and increasing the sugar content are excavated, and the sugarcane deep processing and the development of the sugarcane industry are greatly facilitated.
Mepiquat chloride (DPC) is a plant growth regulator, which can regulate the activity of gibberellin in plant body, so as to regulate plant type, enhance chlorophyll synthesis, prevent plant growth and increase plant stress resistance. Auxins and cytokinins have the effect of promoting plant growth and enhancing photosynthesis.
The nutrient elements have important functions in crop photosynthesis and photosynthetic substance accumulation, wherein copper and iron have important functions in the processes of photosynthetic electron transfer and oxidative phosphorylation, and manganese is an important activator for photolysis of oxygen in the process of photosynthetic electron transfer, so that copper, iron and manganese are important nutrient elements for regulating photosynthesis and sugar accumulation.
Aiming at the problems, innovative design is urgently needed on the basis of the original sugarcane conditioner.
Disclosure of Invention
The invention aims to provide a compound sugarcane growth conditioner for improving photosynthetic efficiency and sugar content and application thereof, and aims to solve the problems that sugarcane continuous cropping, variety degradation, improper cultivation management, insufficient or over-mature maturity in cutting and the like in the background art all cause sweetness reduction and influence the sugar yield of sugarcane.
In order to achieve the purpose, the invention provides the following technical scheme: a conditioner for increasing sugar content and photosynthetic efficiency of sugarcane comprises auxin, mepiquat chloride, cytokinin, diethyl aminoethyl hexanoate and CuSO4·5H2O、FeSO4·7H2O and MnSO4Uniformly mixing and adding a diluting solvent to prepare the water-based paint;
the raw materials are taken as a unit by weight and comprise the following raw material components:
the concentration of auxin is 0.01-30 g/L, the concentration of mepiquat chloride is 0.05-60 g/L, the concentration of cytokinin is 0.001-20 g/L, and the concentration of diethyl aminoethyl hexanoate is 0.01-40 g/L, CuSO4·5H2The concentration of O is 0.01 g/L-20 g/L, FeSO4·7H2The concentration of O is 0.01 g/L-20 g/L, MnSO4The concentration of (A) is 0.01 g/L-20 g/L;
preferably, the concentration of the auxin is 0.1 to 15g/L, the concentration of the mepiquat chloride is 0.1 to 30g/L, the concentration of the cytokinin is 0.01 to 10g/L, and the concentration of the diethyl aminoethyl hexanoate is 0.1 to 20g/L, CuSO4·5H2The concentration of O is 0.1 g/L-10 g/L, FeSO4·7H2The concentration of O is 0.1 g/L-10 g/L, MnSO4The concentration is 0.1 g/L-10 g/L.
Preferably, the diluting solvent of the compound sugarcane conditioner is an aqueous solution, and all the raw materials are mixed and stirred after being added into the diluting solvent.
Preferably, the water solubility of each component of the compound sugarcane conditioner is full dissolution.
Preferably, the composite sugarcane conditioner is dried at low temperature due to ventilation when the conditioner is stored in the meprobamate; should be protected from moisture and sunlight, should not be mixed with food, seeds and feed, and should be prevented from contacting skin and eyes, and be prevented from inhaling through mouth and nose.
Preferably, the mepiquat chloride and the diethyl aminoethyl hexanoate in the compound sugarcane conditioner are both white powder, so that the compound sugarcane conditioner is stirred to be completely dissolved when being mixed with a diluting solvent.
A composite sugarcane growth conditioner for improving photosynthetic efficiency and sugar content and an application thereof comprise the following steps:
s1: weighing
Mixing auxin, mepiquat chloride, cytokinin, diethyl aminoethyl hexanoate and CuSO4·5H2O、FeSO4·7H2O and MnSO4The components are weighed according to the proportion and are separately collected, stored and processed;
s2: raw material dissolution
Adding the raw materials into a diluting solvent according to the required concentration for proportioning, and fully stirring the raw materials and the diluting solvent to enable the raw materials to be completely dissolved in the diluting solvent to obtain a diluted solution of the raw materials, wherein the raw materials are separately dissolved and placed;
s3: mixing
Transferring the diluted solution of the raw materials dissolved one by one in the step S2 to a large container one by one, fully stirring and mixing all the raw materials, and standing when the raw materials are uniformly mixed;
s4: application method
In early mature period of sugarcane process and in the evening of clear and calm, the composition is sprayed by adding water, and the amount of the composition is one mu (667 m)2) Spraying 100 ml of compound sugarcane growth conditioner on leaf surfaces, adding water in an amount of 15-30L/mu, and aligning by using an unmanned aerial vehicleThe sugarcane is sprayed on the leaf surfaces, and the condition that the leaf surfaces are completely wet and do not drip is taken as the standard. The application times are 1 time, namely spraying in the late 10 months of each year (namely early mature period of the sugarcane process).
Compared with the prior art, the invention has the beneficial effects that: the conditioner for improving the sugar content and the photosynthetic efficiency of the sugarcane and the preparation method thereof;
1. experiments show that the compound sugarcane growth conditioner product created by the invention has the effects of improving the photosynthetic efficiency and sugar content of sugarcane, and can adjust the net photosynthetic rate of sugarcane leaves, promote the synthesis and accumulation of the sugarcane sugar content and accelerate the reduction of the sugar content to be converted into the sugarcane sugar content when the sugarcane is harvested at the early stage of sugarcane process maturation by spraying the product on leaf surfaces;
2. the invention develops the new function of a compound product taking auxin, mepiquat chloride, cytokinin and diethyl aminoethyl hexanoate as main components, the obtained compound sugarcane growth conditioner product is safe and efficient, the application cost is low, the ideal effect of improving the photosynthetic efficiency and the sugar content can be achieved by spraying by an unmanned aerial vehicle, and the compound sugarcane growth conditioner is worthy of popularization and application in production.
Detailed Description
The technical solutions in the embodiments of the present invention are clearly and completely described, and it is obvious that the described embodiments are only a part of the embodiments of the present invention, and not all 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 invention provides a technical scheme that: a conditioner for increasing sugar content and photosynthetic efficiency of sugarcane comprises auxin, mepiquat chloride, cytokinin, diethyl aminoethyl hexanoate and CuSO4·5H2O、FeSO4·7H2O and MnSO4Uniformly mixing and adding a diluting solvent to prepare the water-based paint;
the raw materials are taken as a unit by weight and comprise the following raw material components:
the concentration of the auxin is 0.01g/L to 30g/L, the concentration of the mepiquat chloride is 0.05g/L to 60g/L,The concentration of the cytokinin is 0.001-20 g/L, and the concentration of the diethyl aminoethyl hexanoate is 0.01-40 g/L, CuSO4·5H2The concentration of O is 0.01 g/L-20 g/L, FeSO4·7H2The concentration of O is 0.01 g/L-20 g/L, MnSO4The concentration of (A) is 0.01 g/L-20 g/L;
preferably, the concentration of the auxin is 0.1 to 15g/L, the concentration of the mepiquat chloride is 0.1 to 30g/L, the concentration of the cytokinin is 0.01 to 10g/L, and the concentration of the diethyl aminoethyl hexanoate is 0.1 to 20g/L, CuSO4·5H2The concentration of O is 0.1 g/L-10 g/L, FeSO4·7H2The concentration of O is 0.1 g/L-10 g/L, MnSO4The concentration is 0.1 g/L-10 g/L.
In the embodiment, the diluting solvent of the compound sugarcane conditioner is aqueous solution, and all the raw materials are added into the diluting solvent and then are uniformly mixed by stirring.
The water solubility of each component of the compound sugarcane conditioner is full dissolution.
When the composite sugarcane conditioner is stored in a shrinkage installation mode, the composite sugarcane conditioner is dried at a low temperature due to ventilation; should be protected from moisture and sunlight, should not be mixed with food, seeds and feed, and should be prevented from contacting skin and eyes, and be prevented from inhaling through mouth and nose.
The mepiquat chloride and the diethyl aminoethyl hexanoate in the compound sugarcane conditioner are both set to be white powder, so that the composite sugarcane conditioner is stirred to be dissolved when being mixed with a diluting solvent.
A composite sugarcane growth conditioner for improving photosynthetic efficiency and sugar content and an application thereof comprise the following steps:
s1: weighing
Mixing auxin, mepiquat chloride, cytokinin, diethyl aminoethyl hexanoate and CuSO4·5H2O、FeSO4·7H2O and MnSO4The components are weighed according to the proportion and are separately collected, stored and processed;
s2: raw material dissolution
Adding the raw materials into a diluting solvent according to the required concentration for proportioning, and fully stirring the raw materials and the diluting solvent to enable the raw materials to be completely dissolved in the diluting solvent to obtain a diluted solution of the raw materials, wherein the raw materials are separately dissolved and placed;
s3: mixing
Transferring the diluted solution of the raw materials dissolved one by one in the step S2 to a large container one by one, fully stirring and mixing all the raw materials, and standing when the raw materials are uniformly mixed;
s4: application method
In early mature period of sugarcane process and in the evening of clear and calm, the composition is sprayed by adding water, and the amount of the composition is one mu (667 m)2) 100 ml of the compound sugarcane growth conditioner is sprayed on the leaf surfaces, the water adding amount is 15L-30L/mu, and the sugarcane is sprayed on the leaf surfaces by an unmanned aerial vehicle, so that the leaf surfaces are completely wet and no drop is left. The application times are 1 time, namely spraying in the late 10 months of each year (namely early mature period of the sugarcane process).
Test design of sugarcane growth conditioner: the test varieties are: new table sugar 22; test site: the xi branch in Huguang county of the Ma Zheng district in Zhan Jiang City; test soil: brick red soil. Grouping tests: four treatments were set for the test, namely control (spraying clear water), example (spraying sugarcane growth conditioner, 70 ml conditioner per mu, according to the invention), comparative example 1 (spraying indoleacetic acid elicitor soluble liquid, 50 ml agent per mu), comparative example 2 (spraying triacontanol brassinolide microemulsion, 50 ml agent per mu), and the amount of liquid spray was 15 liters per mu. And (3) repeating the treatment for three times, spraying the four treatments on leaf surfaces in the early mature period (late 10 months) of the sugarcane process, spraying clear water, the conditioning agent of the embodiment and the conditioning agent of the comparative example for 7 days, measuring the photosynthetic rate index, and sampling in the harvest period to measure the sugar index.
Example one:
as can be seen from Table 1, the net photosynthetic rate of sugarcane leaf is increased in the examples, comparative examples 1 and 2 of the present invention compared with the clear water control, and the net photosynthetic rates of the examples, comparative examples 1 and 2 are increased by 10.84%, 4.66% and 11.63% respectively compared with the clear water control; the control effect of the embodiment and the comparative example 2 of the invention is better.
TABLE 1 Effect of different treatments on the Net photosynthetic Rate of sugarcane leaves
| Treatment of | Net photosynthetic Rate (. mu. mol. m)-2s-1） | Photosynthetic Rate increase (% over clear Water control) |
| Examples (invention) | 19.73 | 10.84 |
| Comparative example 1 | 18.63 | 4.66 |
| Comparative example 2 | 19.87 | 11.63 |
| Clear water control | 17.80 | —— |
Example two:
as can be seen from Table 2, the sucrose of sugarcane was significantly increased in the examples of the present invention, comparative example 1 and comparative example 2, as compared to the clear water control. Compared with the clear water control, the sugarcane sucrose of the invention is increased by 8.44%, 1.11% and 0.74% respectively after the treatment of the example, the comparative example 1 and the comparative example 2. The sugarcane fiber content is reduced in the embodiment and the comparative example 1, but the sucrose fiber content is increased in the comparative example 2, and the formula test result of the comparative example 2 is poor through the sucrose fiber index analysis.
TABLE 2 influence of different treatments on sugar content of bagasse
Example result three:
as can be seen from Table 3, in the crushed sugarcane juice, the examples of the invention and comparative example 2 each have an increased sucrose content, a reduced sugar content, an increased apparent and gravitational purity, and the comparative example 1 has a reduced sucrose content, as compared to the clear water control. In conclusion, the embodiment of the invention has the best regulation effect on the sugar content of the sugarcane in three treatments.
TABLE 3 influence of different treatments on the sugar content of the sugarcane crushing juice
| Treatment of | Sugar content% | The content of reducing sugar% | According to purity% | Purity by gravity% |
| Examples (invention) | 20.26 | 0.20 | 93.64 | 94.43 |
| Comparative example 1 | 18.64 | 0.23 | 93.12 | 94.28 |
| Comparative example 2 | 18.86 | 0.25 | 92.91 | 94.00 |
| Clear water control | 18.76 | 0.34 | 91.49 | 92.59 |
Those not described in detail in this specification are within the skill of the art.
Although embodiments of the present invention have been shown and described, it will be appreciated by those skilled in the art that changes, modifications, substitutions and alterations can be made in these embodiments without departing from the principles and spirit of the invention, the scope of which is defined in the appended claims and their equivalents.
Claims (6)
1. A conditioner for improving sugar content and photosynthetic efficiency of sugarcane is characterized in that: comprises auxin, mepiquat chloride, cytokinin, diethyl aminoethyl hexanoate and CuSO4·5H2O、FeSO4·7H2O and MnSO4Uniformly mixing and adding a diluting solvent to prepare the water-based paint;
the raw materials are taken as a unit by weight and comprise the following raw material components:
the concentration of auxin is 0.01-30 g/L, the concentration of mepiquat chloride is 0.05-60 g/L, the concentration of cytokinin is 0.001-20 g/L, and the concentration of diethyl aminoethyl hexanoate is 0.01-40 g/L, CuSO4·5H2The concentration of O is 0.01 g/L-20 g/L, FeSO4·7H2The concentration of O is 0.01 g/L-20 g/L, MnSO4The concentration of (A) is 0.01 g/L-20 g/L;
preferably, the concentration of the auxin is 0.1 to 15g/L, the concentration of the mepiquat chloride is 0.1 to 30g/L, the concentration of the cytokinin is 0.01 to 10g/L, and the concentration of the diethyl aminoethyl hexanoate is 0.1 to 20g/L, CuSO4·5H2The concentration of O is 0.1 g/L-10 g/L, FeSO4·7H2The concentration of O is 0.1 g/L-10 g/L, MnSO4The concentration is 0.1 g/L-10 g/L.
2. The conditioner for improving sugar cane sugar and photosynthetic efficiency according to claim 1, wherein the conditioner comprises: the diluting solvent of the compound sugarcane conditioner is aqueous solution, and all the raw materials are mixed and stirred after being added into the diluting solvent.
3. The conditioner for improving sugar cane sugar and photosynthetic efficiency according to claim 1, wherein the conditioner comprises: the water solubility of each component of the compound sugarcane conditioner is full dissolution.
4. The conditioner for improving sugar cane sugar and photosynthetic efficiency according to claim 1, wherein the conditioner comprises: when the composite sugarcane conditioner is stored in the shrinkage safety mode, the composite sugarcane conditioner is dried at low temperature due to ventilation; should be protected from moisture and sunlight, should not be mixed with food, seeds and feed, and should be prevented from contacting skin and eyes, and be prevented from inhaling through mouth and nose.
5. The conditioner for improving sugar cane sugar and photosynthetic efficiency according to claim 1, wherein the conditioner comprises: the mepiquat chloride and the diethyl aminoethyl hexanoate in the compound sugarcane conditioner are both set to be white powder, so that the composite sugarcane conditioner is stirred to be dissolved when being mixed with a diluting solvent.
6. The composite sugarcane growth conditioner for improving photosynthetic efficiency and sugar content and the application thereof as claimed in claim 1, wherein: the method comprises the following steps:
s1: weighing
Mixing auxin, mepiquat chloride, cytokinin, diethyl aminoethyl hexanoate and CuSO4·5H2O、FeSO4·7H2O and MnSO4The components are weighed according to the proportion and are separately collected, stored and processed;
s2: raw material dissolution
Adding the raw materials into a diluting solvent according to the required concentration for proportioning, and fully stirring the raw materials and the diluting solvent to enable the raw materials to be completely dissolved in the diluting solvent to obtain a diluted solution of the raw materials, wherein the raw materials are separately dissolved and placed;
s3: mixing
Transferring the diluted solution of the raw materials dissolved one by one in the step S2 to a large container one by one, fully stirring and mixing all the raw materials, and standing when the raw materials are uniformly mixed;
s4: application method
In early mature period of sugarcane process and in the evening of clear and calm, the composition is sprayed by adding water, and the amount of the composition is one mu (667 m)2) 100 ml of the compound sugarcane growth conditioner is sprayed on the leaf surfaces, the water adding amount is 15L-30L/mu, and the sugarcane is sprayed on the leaf surfaces by an unmanned aerial vehicle, so that the leaf surfaces are completely wet and no drop is left. The application times are 1 time, namely spraying in the late 10 months of each year (namely early mature period of the sugarcane process).
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