Low-yield camellia oleifera forest transformation method suitable for unmanned aerial vehicle pollination

Abstract

According to the camellia oleifera low-yield forest transformation method suitable for unmanned aerial vehicle pollination, routes of unmanned aerial vehicle pollination are planned firstly, the distance between the two routes serves as the row spacing and the plant spacing of a camellia oleifera forest, and single plant point locations are marked; then observing whether fruits of the low-yield camellia oleifera forest can be normally converted into grease or not, counting single plants which cannot be normally converted as P, performing pollination according to the relation that P accounts for the total plant number, then dividing the single plants into three types based on the fruit setting rate of the single plants, and directly eliminating the A type single plants and the C type single plants which are not at the point positions of the single plants out of the low-yield camellia oleifera forest; selecting 1-4 single plants of the class B not at the single plant point as scion stock plants D; cutting back the class A single plant and the class C single plant at the single plant point, and grafting by using the scions of the scion stock plant D; transplanting, or complementarily planting and grafting on the single plant point position lacking the single plant; and finally, cleaning and rechecking to obtain a planned camellia oleifera forest. According to the transformation method, the single-plant flowering phase of the camellia oleifera forest is adjusted to be consistent, the camellia oleifera yield is increased, and the requirement for mechanized production of camellia oleifera is met.

Description

Technical Field

[0001] The invention belongs to the technical field of low-yield forest transformation methods, and specifically relates to a method for transforming a low-yield camellia forest suitable for drone pollination. Background Art

[0002] Low-yield tea oil forest refers to tea oil forests with a tree age of 8-50 years, and an oil yield of less than 15kg / mu (fresh fruit yield of 300kg / mu); and tea oil forests with a tree age of more than 50 years, and an oil yield of less than 5kg / mu (fresh fruit yield of 100kg / mu).

[0003] The main reason for the low-yield tea oil forests is the irregular management of tea oil varieties in the past, which has led to serious problems such as mixed varieties and inconsistent flowering periods in the existing production forests, resulting in low fruit set rate and low production capacity.

[0004] According to the forestry industry standards, there are 8 methods for transforming low-yield camellia oil forests in the existing technology, namely: forest land clearing, density adjustment, pruning and shaping, deep digging and reclamation, reasonable fertilization, renewal and transformation, and pest and disease control. However, these methods cannot fundamentally transform low-yield camellia oil forests.

[0005] Artificial assisted pollination is an important means to increase the fruit setting rate of crops, but due to the limitations of crop area and geographical conditions, artificial assisted pollination is costly and inefficient. With the development of science and technology, drone-assisted pollination is cheaper and more efficient. However, due to the inconsistent flowering periods of different individual plants in low-yield camellia oil forests, the same camellia oil forest needs to be pollinated multiple times to meet the pollination needs of all individual plants, and the advantages of drone pollination cannot be demonstrated. Therefore, how to transform the camellia oil forest to have a consistent flowering period is an urgent problem that needs to be solved. Summary of the invention

[0006] In order to solve the technical problem of low fruit setting rate of oil tea forest in the prior art, the present invention provides a method for transforming low-yield oil tea forest suitable for drone pollination. The method can adjust the individual plants in the low-yield oil tea forest to have consistent flowering periods, improve the working efficiency of the drone, reduce the number of pollination times, reduce costs, and improve the fruit setting rate of the low-yield oil tea forest.

[0007] The technical solution adopted by the present invention to solve the above technical problems is as follows.

[0008] The present invention provides a method for transforming a low-yield camellia forest suitable for drone pollination, comprising the following steps:

[0009] Step 1: Before September of the first year, plan the drone pollination route, use the distance between the two routes as the planned row spacing and plant spacing of the oil-tea forest, and mark the single plant locations of the planned oil-tea forest;

[0010] Step 2: From September to October of the first year, observe whether the fruits of the low-yield oil-tea tree forest can be converted into oil normally. Individual trees that cannot be converted normally are counted as P;

[0011] (1) If the number of P plants accounts for more than 70% of the total number of plants, the flowering time of the first single plant is taken as the initial screening flowering period;

[0012] (2) If the number of plants with 30% ≤ P accounts for ≤ 70% of the total number of plants, the flowering time of 10%-30% of the individual plants is used as the initial screening flowering period;

[0013] (3) If the number of P plants accounts for <30% of the total number of plants, the flowering time of >30% of the individual plants is taken as the initial screening flowering period;

[0014] Step 3: In October and November of the first year, if the initial screening flowering period is (1) in the second step, the low-yield oil-tea camellia forest is naturally pollinated; if the initial screening flowering period is (2) or (3) in the second step, a drone is used for pollination according to the drone pollination route planned in the first step;

[0015] Step 4: In April and May of the second year, investigate the fruit setting rate of individual trees in low-yield oil-tea tree forests; classify them into three categories according to the fruit setting rate of individual trees: A<10%, B=10%-40%, C>40%, and mark them respectively;

[0016] The A and C-type plants that are not in the planned oil-tea tree forest single-plant site will be directly eliminated from the oil-tea low-yield forest; for the B-type plants that are not in the planned oil-tea tree forest single-plant site, select 1-4 robust plants as mother plants D for bud collection and fertilize them, and the remaining B-type plants that are not in the planned oil-tea tree forest single-plant site will be treated or eliminated from the oil-tea low-yield forest;

[0017] Step 5: From May 20 to June 10 of the second year, the A and C individual plants at the individual plant locations of the planned oil tea forest will be pruned short and grafted with the edging of the mother plant D collected in the fourth step;

[0018] The diseased and insect-infested plants in the planned oil-tea plantations will be eliminated from the low-yield oil-tea plantations;

[0019] At the single-plant site of the planned oil-tea forest lacking single plants, transplant the Class B single plants that are not in the single-plant site of the planned oil-tea forest, or replant the large seedlings over 3 years old, cut the stems, and use the spikelets of the mother plant D collected in the fourth step for grafting;

[0020] Step 6: After transplanting, replanting and grafting are completed, all oil-tea trees that are not in the planned individual tree locations will be cleared out of the low-yield oil-tea forest;

[0021] Step 7: The flowering period of the individual trees of category B is used as the group flowering period of the oil-tea tree forest;

[0022] Step 8: In October of the second year, after collecting the fruits, during the flowering period of the group, use drones to pollinate according to the drone pollination route planned in the first step. After pollination, fertilize all individual plants;

[0023] Step 9: In April of the third year, all individual plants are rechecked and those with fruit setting rates not in the range of 10%-40% are marked;

[0024] Step 10: During the group flowering period of the third year, investigate the flowering period of the marked individual plants. If it is consistent with the group flowering period, continue to cultivate. If it is inconsistent with the group flowering period, cut the stems and use the strong cuttings of the individual plants for grafting to complete the transformation of the low-yield tea oil forest.

[0025] Preferably, the method further includes an eleventh step, in which every year during the flowering period of the group, a drone is used for pollination according to the drone pollination route planned in the first step.

[0026] Preferably, in the first step, as many individual trees as possible in the low-yield camellia oleifera forest are located at the individual tree locations of the planned camellia oleifera forest.

[0027] Preferably, in the first step, the planned oil tea forest is ≥ 5 mu, and the plant density is ≥ 450 plants / hm2. 2 .

[0028] Preferably, in the first step, the row spacing and plant spacing are both 4-5 m.

[0029] Preferably, in the fourth step and the eighth step, the fertilizer is organic fertilizer, and the fertilizer application amount is 15-30 kg / plant.

[0030] Preferably, in the fourth step, the Class B individual trees to be treated that are not at the planned individual tree locations in the oil palm forest are transplanted nearby.

[0031] Preferably, in the fourth step, the mother plant D for collecting ears is located at the edge of the low-yield tea oil forest.

[0032] Preferably, in the third and eighth steps, the drone pollination has a flight height of 3-5 m, a speed of 3-4 m / s, a liquid volume of 5-7 L per mu, and a pollen dosage of 1-20 g / mu;

[0033] More preferably, the pollen is bee pollen specifically used for pollination of oil tea.

[0034] Compared with the prior art, the present invention has the following beneficial effects:

[0035] The method for transforming low-yield oil tea forests suitable for drone pollination of the present invention uses the flowering period and fruit setting rate of individual plants as transformation factors to adjust the flowering period of individual plants in the oil tea forest to be consistent, thereby increasing the yield of oil tea and meeting the need for oil tea to adapt to mechanized production. According to experimental tests, the fruit setting rate of individual plants in the oil tea forest transformed by the method of the present invention is between 20% and 40%. BRIEF DESCRIPTION OF THE DRAWINGS

[0036] In order to more clearly illustrate the technical solutions of the embodiments of the present invention, the following briefly introduces the drawings required for use in the description of the embodiments. Obviously, the drawings described below are only some embodiments of the present invention. For ordinary technicians in this field, other drawings can be obtained based on these drawings without creative work.

[0037] Figure 1 This is a schematic diagram of a low-yield camellia forest before transformation according to the method for transforming a low-yield camellia forest suitable for drone pollination according to Example 1 of the present invention;

[0038] Figure 2 This is a schematic diagram of the transformation of the fourth step of the method for transforming a low-yield camellia forest suitable for drone pollination according to Example 1 of the present invention;

[0039] Figure 3 This is a schematic diagram of the transformation of the fifth step of the method for transforming a low-yield camellia forest suitable for drone pollination according to Example 1 of the present invention;

[0040] Figure 4 This is a schematic diagram of the transformation of the eleventh step of the method for transforming a low-yield camellia forest suitable for drone pollination according to Example 1 of the present invention;

[0041] Figure 5 This is a schematic diagram of the transformation of the eleventh step of the method for transforming a low-yield camellia forest suitable for drone pollination according to Example 1 of the present invention;

[0042] Figure 6 This is a schematic diagram of the completion of the transformation of a low-yield camellia forest according to the method for transforming a low-yield camellia forest suitable for drone pollination in Example 1 of the present invention. DETAILED DESCRIPTION

[0043] In order to further understand the present invention, preferred embodiments of the present invention are described below. However, it should be understood that these descriptions are only for further illustrating the features and advantages of the present invention, rather than limiting the claims of the present invention.

[0044] The method for transforming a low-yield camellia forest suitable for drone pollination of the present invention comprises the following steps:

[0045] Step 1: Before September of the first year, the flight distance of the drone is used as the row spacing of the planned oil-tea forest. In order to facilitate the growth of oil-tea, combined with cultivation technology, the planned oil-tea forest plant spacing is selected to be the same as the row spacing, and the single plant points of the planned oil-tea forest are marked. The preferred marking material is lime, and it is preferred that as many single plants as possible in the low-yield oil-tea forest are located at the single plant points of the planned oil-tea forest;

[0046] Step 2: Determine the initial screening flowering period;

[0047] From September to October of the first year, observe whether the fruits of the low-yield oil-tea camellia forest can be normally converted into oil (i.e. the oil-tea camellia seeds cannot turn brown). The oil-tea camellia plants that cannot be normally converted are counted as P;

[0048] (1) If the number of P plants accounts for >70% of the total number of plants, the flowering period of the oil-tea camellia forest will be determined according to the order of flowering time, with the flowering time of the first plant being the initial screening flowering period;

[0049] (2) If the number of plants with 30% ≤ P accounts for ≤ 70% of the total number of plants, the flowering period of the oil-tea tree forest is determined according to the order of flowering time, with the flowering time of 10%-30% of the individual plants as the initial screening flowering period;

[0050] (3) If the number of P plants accounts for less than 30% of the total number of plants, the oil-tea tree forest will be classified according to the order of flowering time, and the flowering time of >30% of the individual plants will be used as the initial screening flowering period;

[0051] Step 3: In October-November of the first year, if the initial screening flowering period is (1) in the second step, the low-yield oil-tea tree forest is naturally pollinated due to the small amount of flowering; if the initial screening flowering period is (2) or (3) in the second step, a drone is used for pollination according to the drone pollination route planned in the first step;

[0052] Step 4: In April and May of the second year, investigate the fruit setting rate of individual trees in low-yield oil-tea tree forests; classify them into three categories according to the fruit setting rate of individual trees: A<10%, B=10%-40%, C>40% (category A: individual trees with low fruit setting rate have flowering periods inconsistent with the appropriate flowering period; category C: individual trees with excessively high fruit setting rate have excessively high self-fruiting; category B: individual trees with appropriate flowering periods), and mark them respectively;

[0053] The A and C-type plants that are not in the planned oil-tea tree forest single-plant site will be directly eliminated from the oil-tea low-yield forest; for the B-type plants that are not in the planned oil-tea tree forest single-plant site, select 1-4 robust plants as mother plants D for bud collection and fertilize them, and the remaining B-type plants that are not in the planned oil-tea tree forest single-plant site will be treated or eliminated from the oil-tea low-yield forest;

[0054] Step 5: From May 20 to June 10 of the second year, the A and C individual plants at the individual plant locations of the planned oil tea forest will be pruned short and grafted with the edging of the mother plant D collected in the fourth step;

[0055] In the planned oil-tea plantations, diseased and insect-infested plants are found at individual tree locations, and low-yield oil-tea plantations are eliminated;

[0056] At the single-plant site of the planned oil-tea forest lacking single plants, the Class B single plants to be treated that are not at the single-plant site of the planned oil-tea forest are transplanted, preferably transplanted nearby, or replanted with large seedlings over 3 years old, cut the stems, and grafted with fringe strips of the mother plant D;

[0057] Step 6: After transplanting, replanting and grafting are completed, all oil-tea trees that are not in the planned individual tree locations will be cleared out of the low-yield oil-tea forest;

[0058] Step 7: The flowering period of the individual trees of category B is used as the group flowering period of the oil-tea tree forest;

[0059] Step 8: In October of the second year, after collecting the fruits, during the flowering period of the group, use drones to pollinate according to the drone pollination route planned in the first step. After pollination, fertilize all individual plants;

[0060] Step 9: In April of the third year, all individual plants are rechecked and those with fruit setting rates not in the range of 10%-40% are marked;

[0061] Step 10: During the flowering period of the group in the third year, investigate the flowering period of the marked individual plants. If it is consistent with the flowering period of the group, maintain the original cultivation and management mode. If it is inconsistent with the flowering period of the group, cut the stems and use the strong spikelets of the individual plants for grafting to complete the transformation of the low-yield oil tea forest.

[0062] Step 11: Continue cultivation, and use drones to pollinate during the group flowering period every year according to the drone pollination route planned in the first step.

[0063] In the above technical scheme, it is preferred to plan a tea tree forest of ≥5 mu and a plant density of ≥450 plants / hm2. 2 The planned fruit setting rate of each tree in the oil palm forest is ≥10%, and more preferably ≥20%.

[0064] In the above technical solution, the fertilizer is preferably organic fertilizer, and the fertilizer application amount is 15-30 kg / plant. The organic fertilizer can be obtained commercially, and the present invention has no special limitation.

[0065] In the above technical scheme, the preferred row spacing and plant spacing are 4-5m, the drone pollination altitude is 3-5m, the speed is 3-4m / s, the liquid volume per mu is 5-7L, and the pollen dosage is 1-20g / mu. The pollination time adopts the peak flowering period of the oil tea forest. Only the peak flowering period can ensure that more flowers can accept cross-flower pollen and successfully set fruit in one pollination. The best pollination time is the first sunny day after rain near the peak flowering period and before and after the peak flowering period. Pollen preferably uses bee pollen specially used for oil tea pollination, which can be obtained by existing technology. Such as the bee pollen in the patented method for collecting and using bee pollen for oil tea pollination (CN118140805A).

[0066] In the present invention, robust refers to trees free from diseases and insect pests, and preferably individual trees with relatively more spring shoots.

[0067] In the present invention, in addition to the transformation method mentioned in the present invention, the oil tea forest can be cultivated every year using existing cultivation technology.

[0068] The terms used in the present invention generally have the meanings commonly understood by those of ordinary skill in the art, unless otherwise specified.

[0069] In order to enable those skilled in the art to better understand the technical solution of the present invention, the present invention will be further described in detail below in conjunction with embodiments.

[0070] In the following examples, various processes and methods not described in detail are conventional methods known in the art. Unless otherwise specified, the materials, reagents, devices, instruments, equipment, etc. used in the following examples can be obtained from commercial sources.

[0071] Example 1

[0072] Camellia oleifera low-yield forest, 5 mu, 565 trees, current row spacing is 2m×2m, flowering period is inconsistent, as shown in the schematic diagram Figure 1 As shown, the transformation method is:

[0073] Step 1: Before September 2021, plan the route for drone pollination, plan the row and plant spacing of the oil tea forest, determine that the drone's flight distance is 4m, the row and plant spacing of the oil tea forest is 4m×4m, use lime to mark the single plant points of the planned oil tea forest at a spacing of 4m×4m, and make as many single plants as possible in the low-yield oil tea forest be located at the single plant points of the planned oil tea forest;

[0074] Step 2: Determine the initial screening flowering period;

[0075] On October 23, 2021, observe whether the fruits of low-yield camellia oleifera forests can be normally converted into oil (i.e., the camellia oleifera seeds cannot brown). Individual camellia oleifera plants that cannot be normally converted are counted as P;

[0076] The investigation found that one oil-tea tree's fresh fruit could not be normally converted into oil (recorded as P), accounting for 0.18% of the total number of trees. Since the number of P trees accounted for <30% of the total number of trees, the oil-tea forest was sorted according to the order of flowering early and late, and the flowering time of >30% of the single trees was used as the initial screening flowering period.

[0077] Step 3: November 5, 2021:

[0078] Use drones to pollinate according to the drone pollination route planned in the first step, with a flight distance of 4m, a flight height of 4m, a speed of 3m / s, 10g of pollen per mu, a total liquid volume of 6L, and bee pollen specially used for oil tea pollination;

[0079] Step 4: On April 5-6, 2022, the fruit setting rate of each plant was investigated. The results are as follows:

[0080] Category A (fruit setting rate per plant <10%): 179 plants;

[0081] Category B (fruit setting rate per plant 10%-40%): 362 plants;

[0082] Category C (fruit setting rate per plant>40%): 23 plants;

[0083] Eliminate Class A and Class C trees in the single-tree sites that are not in the planned oil-tea forest: the Class A and Class C trees in the single-tree sites that are not in the planned oil-tea forest are 102 and 12 respectively;

[0084] There are 237 Class B trees in the single-tree sites that are not in the planned oil-tea forest. Among them, 4 robust Class B trees located at the edge are retained as mother trees D for collecting spikes, and organic fertilizer is applied at a rate of 2-3 kg / tree. The remaining Class B trees in the single-tree sites that are not in the planned oil-tea forest are eliminated from the low-yield oil-tea forest.

[0085] Schematic diagram as Figure 2 As shown;

[0086] Step 5: June 1, 2022

[0087] The A and C individual plants in the planned oil-tea tree forest were pruned and grafted with cuttings from the mother plant D; a total of 87 plants were grafted;

[0088] At the individual tree sites of the planned oil-tea plantation, a single longhorn beetle was found to be seriously damaging, and the low-yield oil-tea plantation was eliminated;

[0089] At the single-tree sites of the planned oil-tea tree forests that lack single trees, large seedlings of more than three years old are planted and then grafted with the mother plant D;

[0090] Schematic diagram as Figure 3 As shown;

[0091] Step 6: After transplanting, replanting and grafting are completed, all individual trees that are not in the planned individual tree locations in the oil tea forest are cleared; in the end, there are 211 trees in the oil tea garden;

[0092] Step 7: The flowering period of the B-type individual trees is taken as the group flowering period of the oil-tea tree forest. The flowering period of the oil-tea tree is early November, and the specific time may vary depending on the weather;

[0093] Step 8: October 23, 2022, collect the fruits;

[0094] Step 9: On November 3, 2022, a drone was used for pollination according to the drone pollination route planned in the first step, with a flight distance of 4m, a flight height of 4m, a speed of 3m / s, 10g of pollen per mu, and a total liquid volume of 6L. The pollen was bee pollen specially used for oil tea pollination;

[0095] Step 10: On November 14, 2022, apply organic fertilizer to all plants at a rate of 2-3 kg / plant;

[0096] Step 11: Recheck in early April 2023, it was found that the fruit setting rate of one plant was not within the range of 10%-40%, as shown in the diagram Figure 4 As shown, marking is performed and a single robust spikelet is used for grafting, as shown in the schematic diagram Figure 5 As shown in the figure, the transformation of low-yield oil-tea tree forest is completed, and the schematic diagram of the obtained oil-tea tree forest is as follows Figure 6 shown.

[0097] According to experimental tests, the oil-tea forest achieved a consistent flowering period in 2023. According to a survey in April 2024, the fruit setting rate of a single plant was between 21.6% and 31.7%, with an average fruit setting rate of 25.1%. Through the adjustment of the flowering period and drone-assisted pollination, the oil-tea forest achieved high and stable yields.

[0098] Obviously, the above embodiments are merely examples for clear explanation, and are not intended to limit the embodiments. For those skilled in the art, other different forms of changes or modifications can be made based on the above description. It is not necessary and impossible to list all the embodiments here. The obvious changes or modifications derived from them are still within the protection scope of the invention.

Claims

1. A method for transforming low-yield camellia forest suitable for drone pollination, characterized in that: The following steps are involved: Step 1: Before September of the first year, plan the drone pollination route, use the distance between the two routes as the planned row spacing and plant spacing of the oil-tea forest, and mark the single plant locations of the planned oil-tea forest; Step 2: From September to October of the first year, observe whether the fruits of the low-yield oil-tea tree forest can be converted into oil normally. Individual trees that cannot be converted normally are counted as P; (1) If the number of P plants accounts for >70% of the total number of plants, the flowering time of the first single plant is taken as the initial screening flowering period; (2) If the number of plants with 30% ≤ P accounts for ≤ 70% of the total number of plants, the flowering time of 10%-30% of the individual plants is used as the initial screening flowering period; (3) If the number of P plants accounts for <30% of the total number of plants, the flowering time of >30% of the individual plants is taken as the initial screening flowering period; Step 3: In October and November of the first year, if the initial screening flowering period is (1) in the second step, the low-yield oil-tea camellia forest is naturally pollinated; if the initial screening flowering period is (2) or (3) in the second step, a drone is used for pollination according to the drone pollination route planned in the first step; Step 4: In April and May of the second year, investigate the fruit setting rate of individual trees in low-yield oil-tea tree forests; classify them into three categories according to the fruit setting rate of individual trees: A<10%, B=10%-40%, C>40%, and mark them respectively; The A and C-type plants that are not in the planned oil-tea tree forest single-plant site will be directly eliminated from the oil-tea low-yield forest; for the B-type plants that are not in the planned oil-tea tree forest single-plant site, select 1-4 robust plants as mother plants D for bud collection and fertilize them, and the remaining B-type plants that are not in the planned oil-tea tree forest single-plant site will be treated or eliminated from the oil-tea low-yield forest; Step 5: From May 20 to June 10 of the second year, the A and C individual plants at the individual plant locations of the planned oil tea forest will be pruned short and grafted with the edging of the mother plant D collected in the fourth step; The diseased and insect-infested plants in the planned oil-tea plantations will be eliminated from the low-yield oil-tea plantations; At the single-plant site of the planned oil-tea forest lacking single plants, transplant the Class B single plants that are not in the single-plant site of the planned oil-tea forest, or replant the large seedlings over 3 years old, cut the stems, and use the spikelets of the mother plant D collected in the fourth step for grafting; Step 6: After transplanting, replanting and grafting are completed, all individual trees that are not in the planned individual tree locations of the oil-tea tree forest shall be cleared out of the low-yield oil-tea tree forest; Step 7: The flowering period of the individual trees of category B is used as the group flowering period of the oil-tea tree forest; Step 8: In October of the second year, after collecting the fruits, during the flowering period of the group, use drones to pollinate according to the drone pollination route planned in the first step. After pollination, fertilize all individual plants; Step 9: In April of the third year, all individual plants are rechecked and those with fruit setting rates not in the range of 10%-40% are marked; Step 10: During the group flowering period of the third year, investigate the flowering period of the marked individual plants. If it is consistent with the group flowering period, continue to cultivate. If it is inconsistent with the group flowering period, cut the stems and use the strong cuttings of the individual plants for grafting to complete the transformation of the low-yield tea oil forest.

2. The method for transforming low-yield camellia forest suitable for drone pollination according to claim 1, characterized in that: It also includes the eleventh step, which is to use drones to pollinate according to the drone pollination route planned in the first step every year during the flowering period of the group.

3. The method for transforming low-yield camellia forest suitable for drone pollination according to claim 1 or 2, characterized in that: In the first step, as many individual trees as possible in the low-yield tea oil forest are located at the individual tree locations of the planned tea oil forest.

4. The method for transforming low-yield camellia forest suitable for drone pollination according to claim 1 or 2, characterized in that: In the first step, the planned oil tea forest is ≥ 5 mu, and the plant density is ≥ 450 plants / hm2. 2 .

5. The method for transforming low-yield camellia forest suitable for drone pollination according to claim 1 or 2, characterized in that: In the first step, the row spacing and plant spacing are both 4-5m.

6. The method for transforming low-yield camellia forest suitable for drone pollination according to claim 1 or 2, characterized in that: In the fourth step and the eighth step, the fertilizer is organic fertilizer, and the fertilizer application amount is 15-30 kg / plant.

7. The method for transforming low-yield camellia forest suitable for drone pollination according to claim 1 or 2, characterized in that: In the fourth step, the mother plant D for collecting spikes is located at the edge of the low-yield tea oil forest.

8. The method for transforming low-yield camellia forest suitable for drone pollination according to claim 1 or 2, characterized in that: In the fifth step, the Class B trees that are not located in the planned oil palm forest tree locations will be transplanted nearby.

9. The method for transforming low-yield camellia forest suitable for drone pollination according to claim 1 or 2, characterized in that: In the third and eighth steps, the drone pollination has a flight height of 3-5 m, a speed of 3-4 m / s, a liquid volume of 5-7 L per mu, and a pollen dosage of 1-20 g / mu.

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