Pineapple flower forcing method using intelligent unmanned aerial vehicle

Abstract

The invention discloses a pineapple flower forcing method using an intelligent unmanned aerial vehicle. Belongs to the technical field of pineapple cultivation production and technical management. Comprising the following steps: S1, acquiring geographical positioning information and weather information of a pineapple flower forcing plot; s2, setting a program and a route of full-automatic flight of the unmanned aerial vehicle according to the geographic positioning information; s3, preparing a pineapple flower forcing agent and loading the pineapple flower forcing agent into an unmanned aerial vehicle spraying box; s4, starting the unmanned aerial vehicle to spray the pineapple flower forcing agent according to the set program and route. By means of the technical method, intelligentization and unmanned operation of field pineapple flower forcing are achieved, the flower forcing efficiency can be greatly improved, and the labor cost of pineapple flower forcing can be greatly reduced.

Description

Technical Field

[0001] The invention relates to the technical field of pineapple cultivation production and technical management, and more specifically to a pineapple flowering induction method using an intelligent unmanned aerial vehicle. Background Art

[0002] Pineapple [Ananas comosus (Linn.) Merr] is a perennial monocotyledonous evergreen herbaceous fruit tree of the Bromeliaceae family (Bromeliaceae). It is suitable for tropical and subtropical regions due to its drought and barrenness resistance. As one of the most distinctive and advantageous tropical fruits in southern my country, it has the characteristics of stable production and high planting efficiency. Due to its high economic benefits, the planting area in Hainan Province and Guangdong Province in my country is increasing. Flower induction is an important part of pineapple cultivation production and technical management. Scientific and effective flower induction methods can ensure that pineapples bloom evenly, which is beneficial to field management and reducing production costs. At present, there are many methods for flower induction in the field, such as artificial heart filling with ethephon, calcium carbide, brassinolide, sodium naphthaleneacetate aqueous solution, or spraying leaves with ethephon solution, but all of the above methods have shortcomings: artificial heart filling with ethephon, calcium carbide, brassinolide, sodium naphthaleneacetate aqueous solution is generally required to be carried out at night, which is difficult to operate and has high labor costs. In addition, when calcium carbide is dissolved in water, acetylene gas is produced, which can induce pineapples to bloom. However, calcium carbide is flammable and explosive when it releases acetylene in contact with water, and its storage, transportation and use are highly risky. Sodium naphthylacetate has a poor effect in inducing flowering, and it takes a long time from flowering to budding and the buds are not uniform.

[0003] Ethephon is the most widely used method for inducing flowering in the main pineapple producing areas in my country. However, the water conditions in the pineapple planting areas in the producing areas are limited, and water trucks or even manual water transportation are needed. Therefore, using ethephon to induce flowering requires a lot of manpower and increases production costs.

[0004] In summary, how to provide an efficient pineapple catalysis method that reduces water consumption and labor cost input is a problem that technical personnel in this field urgently need to solve. Summary of the invention

[0005] In view of this, the present invention provides a pineapple flowering induction method using an intelligent drone.

[0006] In order to achieve the above object, the present invention adopts the following technical solution:

[0007] A method for inducing flowering of pineapples using an intelligent drone comprises the following steps:

[0008] Step S1, obtaining geographic location information and weather information of the pineapple flower-forcing plot;

[0009] Use the Aowei Interactive Map Enterprise Edition APP and Moji Weather to collect the geographic positioning information and weather information of the pineapple flowering plots, and determine whether intelligent drone flowering operations can be carried out based on the real-time weather conditions.

[0010] Step S2: setting the fully automatic flight program and route of the drone according to the geographic positioning information;

[0011] Based on the geo-location information collected in step S1, the drone takes a point of interest and demarcates a restricted operation area.

[0012] Step S3, preparing pineapple flower-inducing agent and loading it into the drone spray box;

[0013] Step S4, start the drone to spray the pineapple flower-inducing agent according to the set program and route.

[0014] Furthermore, in step S1, the geographic positioning information includes the longitude and latitude of the plot, and the altitude, and the weather information includes the temperature, wind direction, wind speed, whether it is cloudy or sunny, and the intensity of ultraviolet rays.

[0015] Furthermore, the working weather requirements are temperature ≤25℃, wind speed ≤8m / s, cloudy or sunny, and UV intensity index below medium.

[0016] Furthermore, in step S2, the program for the fully automatic flight of the drone is set to a relative altitude of 2.5m, a flight speed of 6m / s, and a straight-line flight in a limited area.

[0017] Furthermore, in step S3, the flower-inducing agent includes the following components in mass concentrations: 2% ethephon, 25 mg / L urea and 10 mg / L borax.

[0018] Furthermore, in step S4, the spraying time is from 16:30 to 20:00.

[0019] Furthermore, the spraying amount is 20L / mu.

[0020] Furthermore, the pineapple varieties are Bali and Thornless Caine.

[0021] Furthermore, when the pineapple variety is Bali, the number of unfolded leaves of the pineapple is required to be ≥35, and when the pineapple variety is Thorncain, the number of unfolded leaves of the pineapple is required to be ≥30.

[0022] It can be seen from the above technical solution that, compared with the prior art, the beneficial effects achieved by the present invention are:

[0023] The pineapple flower-inducing technical solution provided by the present invention can effectively induce pineapples to bloom and bud. The application of intelligent drones in pineapple flower-inducing not only provides a new use of drones, but also greatly reduces labor cost input, reduces the difficulty of pineapple field management, and improves the economic benefits of pineapple production. BRIEF DESCRIPTION OF THE DRAWINGS

[0024] In order to more clearly illustrate the embodiments of the present invention or the technical solutions in the prior art, the drawings required for use in the embodiments or the description of the prior art will be briefly introduced below. Obviously, the drawings described below are only embodiments of the present invention. For ordinary technicians in this field, other drawings can be obtained based on the provided drawings without paying creative work.

[0025] Figure 1 A technical roadmap for the method of the present invention;

[0026] Figure 2 This is a field picture of pineapple flower induction by drone in Example 3 of the present invention;

[0027] Figure 3 The straight flight route is set according to the limited flight operation area in embodiment 3 of the present invention;

[0028] Figure 4 This is a picture of the UAV field flower induction operation in Example 3 of the present invention;

[0029] Figure 5 This is a diagram of the conventional flower-forcing artificial filling (treatment 4) operation in Example 3 of the present invention;

[0030] Figure 6 This is a working diagram of conventional flower-inducing artificial spraying on leaves (treatment 3) in Example 3 of the present invention;

[0031] Figure 7 This is a diagram showing the effect of flower induction in treatment 2 in Example 3 of the present invention;

[0032] Figure 8 This is a diagram showing the effect of pineapple fruit after flower induction in Example 3 of the present invention. DETAILED DESCRIPTION

[0033] The following will be combined with the drawings in the embodiments of the present invention to clearly and completely describe the technical solutions in the embodiments of the present invention. Obviously, the described embodiments are only part of the embodiments of the present invention, not all of the embodiments. Based on the embodiments of the present invention, all other embodiments obtained by ordinary technicians in this field without creative work are within the scope of protection of the present invention.

[0034] The drugs required for the present invention are conventional experimental drugs, which are purchased from commercial channels; the experimental methods not mentioned are conventional experimental methods and will not be described in detail here.

[0035] Example 1

[0036] Information collection, confirmation and drone program setting:

[0037] (1) When you arrive at the plot where pineapples need to be forced to bloom, first confirm the variety of pineapples that need to be forced to bloom and count the number of their unfolded leaves. Open your smartphone and use the Aowei Interactive Map Enterprise Edition APP and Moji Weather to determine the geographic positioning information and weather information of the plot where the smart drone is working to force pineapples to bloom, and then input the determined information into the drone operating system.

[0038] (2) Start the UAV and fly along the land to define a limited flight operation area based on the input geographic positioning information. Set a straight flight route based on the limited flight operation area. The spraying range of the route fully covers the operation area but avoids duplication as much as possible.

[0039] Example 2

[0040] On September 20, 2023, it was implemented in Haiou 16th Team, Qujie Town, Xuwen County, Zhanjiang City, Guangdong Province. The implementation time is 17:00-17:30, the weather information is sunny, the UV intensity index is weak, the temperature is 25.0℃, the wind speed is 4.6-6.8m / s, and the maximum gust is 7.6m / s.

[0041] The pineapple variety is Bali, with 37 to 47 leaves, and the following three treatment methods are used:

[0042] ① The drone program was set to a relative height of 2.5m, a flight speed of 6m / s, a spray volume of 10L / mu, and a 0.8% ethephon concentration aqueous solution as the flower-inducing agent.

[0043] ②UAV spraying of clean water at 10L / mu was used as a blank control.

[0044] ③Use conventional method to irrigate the heart with 600 mg / L ethephon aqueous solution, and use 80 mL for each plant as control.

[0045] The budding time and flowering rate of pineapple were investigated. Three rows were investigated in each treatment, 100 plants were investigated in each row, and the average was taken.

[0046] According to the investigation, the conventional method of inducing Bali flower buds took a shorter time of 32 days, while the drone-induced Bali flower buds took 40 days, and there was no bud formation in the blank control; the average flowering rate of drone-induced Bali flower was 76.7%, and the average flowering rate of the conventional method was 95.4%.

[0047] Example 3

[0048] On September 26, 2023, it was implemented at Seagull Team 16 in Qujie Town, Xuwen County, Zhanjiang City, Guangdong Province.

[0049] The implementation time is 19:00-19:30, the weather information is sunny, the UV intensity index is weak, the temperature is 25.0℃, the wind speed is 4.6-7.8m / s, and the maximum gust is 8.0m / s. The pineapple variety is Bali, and the number of leaves unfolded is 37-47 ( Figure 2Start the drone, fly along the land according to the input geographic information to define the limited flight operation area, and set a straight flight route according to the limited flight operation area ( Figure 3 ). Use the following five processing methods respectively:

[0050] ① For treatment 1, the drone program was set to a relative height of 2.5 m, a flight speed of 6 m / s, a spray volume of 10 L / mu, and a 2% ethephon concentration aqueous solution as the flower-inducing agent.

[0051] ② Treatment 2: The drone program was set to a relative height of 2.5m, a flight speed of 6m / s, a spray volume of 20L / mu, and a flowering agent of 2% ethephon, 25mg / L urea, and 10mg / L borax in water ( Figure 4 ).

[0052] ③ Treatment 3 was conventional artificial foliar spraying of 600 mg / L ethephon aqueous solution, with a spraying amount of 150 L / mu.

[0053] ④ Treatment 4 was heart-injection with 600 mg / L ethephon aqueous solution, 80 mL per plant.

[0054] ⑤ Treatment 5 was a blank control, and the drone sprayed 20L / mu of clean water as a blank control.

[0055] The pineapple budding time and flowering rate were investigated. Three rows were investigated in each treatment, 100 plants were investigated in each row, and the average was taken. The results are shown in Table 1. Figures 5 to 8 shown.

[0056] Table 1 Bud bursting time, flowering rate and cost accounting of different flower induction treatments

[0057] Process 1 Process 2 Process 3 Process 4 Process 5 Budding duration (days) 35 31 31 32 - Average flowering rate (%) 86.2±5.1 98.4±2.4 93.6±5.6 95.6±6.6 - Cost of inducing flowering (yuan / mu) 68.56 70.44 106.25 106.25 - Working time (min / mu) 1.0 1.0 28.0 40.0 1.0

[0058] As shown in Table 1, the budding time of Bali pineapple was the shortest, 31 days, in treatment 2, UAV induced flower and treatment 3, conventional manual foliage spraying induced flower. In treatment 1, UAV induced flower, Bali pineapple budding took 35 days, and there was no budding phenomenon in the blank control. The flowering rate of treatment 2 with drone induced flower was the highest, with an average flowering rate of 98.4%, the average flowering rate of treatment 1 with unmanned induced flower was 86.2%, the average flowering rate of treatment 3 with manual foliage spraying induced flower was 93.6%, the average flowering rate of treatment 4 with manual heart injection induced flower was 95.6%, and there was no flowering phenomenon in treatment 5 with blank control. The cost of drone induced flower was lower than that of conventional manual treatment. Among them, treatment 2, which had the best induced flower effect, was 34% lower than that of conventional induced flower treatment. This shows that intelligent drone induced flower can effectively save the cost of pineapple induced flower. In terms of induced flower efficiency, the speed of drone induced flower is 1.0min / mu, and the induced flower efficiency is 40 times that of the traditional heart injection method and 28 times that of manual foliage spraying, which greatly improves the efficiency of pineapple induced flower.

[0059] The various embodiments in this specification are described in a progressive manner, and each embodiment focuses on the differences from other embodiments. The same or similar parts between the various embodiments can be referenced to each other.

[0060] The above description of the disclosed embodiments enables one skilled in the art to implement or use the present invention. Various modifications to these embodiments will be apparent to one skilled in the art, and the general principles defined herein may be implemented in other embodiments without departing from the spirit or scope of the present invention. Therefore, the present invention will not be limited to the embodiments shown herein, but rather to the widest scope consistent with the principles and novel features disclosed herein.

Claims

1. A method for inducing pineapple flowering using an intelligent drone, characterized in that: The steps include: Step S1, obtaining geographic location information and weather information of the pineapple flower-forcing plot; Step S2: setting the fully automatic flight program and route of the drone according to the geographic positioning information; Step S3, preparing pineapple flower-inducing agent and loading it into the drone spray box; Step S4, start the drone to spray the pineapple flower-inducing agent according to the set program and route.

2. The method according to claim 1, characterized in that In step S1, the geographic positioning information includes the longitude and latitude of the plot, and the altitude, and the weather information includes the temperature, wind direction, wind speed, whether it is cloudy or sunny, and the intensity of ultraviolet rays.

3. The method according to claim 2, characterized in that The working weather requirements are temperature ≤25℃, wind speed ≤8m / s, cloudy or sunny, and UV intensity index below medium.

4. The method according to claim 1, characterized in that In step S2, the fully automatic flight program of the drone is set to a relative altitude of 2.5m, a flight speed of 6m / s, and a straight line flight in a limited area.

5. The method according to claim 1, characterized in that In step S3, the flower-inducing agent includes the following components in mass concentrations: 2% ethephon, 25 mg / L urea and 10 mg / L borax.

6. The method according to claim 1, characterized in that In the step S4, the spraying time is from 16:30 to 20:

00.

7. The method according to any one of claims 1 to 6, characterized in that: The pineapple varieties are Bali and Psoralea cochinchinensis.

8. The method according to claim 7, characterized in that When the pineapple variety is Bali, the number of unfolded leaves is required to be ≥35. When the pineapple variety is Caenorhabditis elegans, the number of unfolded leaves is required to be ≥30.

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