83 results about "Thinning" patented technology

The invention provides a sunlight greenhouse winter seedling raising method for angelica sinensis. The Chinese angelica sunlight greenhouse winter seedling raising method comprises the steps that a sunlight greenhouse is built in an area with the altitude being 2000 m or below, the azimuth angle of the sunlight greenhouse is 5-7 degrees from the south to the west, the base angle of a front roof is 60-65 degrees, the elevation angle of a main lighting surface is 22-25 degrees, and the elevation angle of a back slope is 37-38 degrees; the method comprises the following steps: sowing angelica sinensis seeds in a greenhouse from late November to early and middle December, wherein the seeds comprise early bolting seeds, side ear seeds or main ear seeds; the environment in the greenhouse is controlled, the temperature in the coldest month is not lower than 12 DEG C, the ground temperature is not lower than 10 DEG C, and vernalization of the angelica sinensis seedlings is avoided; managing the seedlings, including water management, sunlight management, temperature regulation and control, weeding and thinning, and disease and pest control. The Chinese angelica sunlight greenhouse winter seedling raising method provided by the invention has the advantages that Chinese angelica seedling raising is carried out in a zone with the altitude of 2000m or below, and the problem that the ecological environment is damaged by Chinese angelica early bolting, Chinese angelica seed reserving, Chinese angelica prepared land seedling raising and Chinese angelica high-altitude seedling raising can be solved.

The invention relates to the technical field of ecological restoration, in particular to a method for restoring a tropical degraded forest based on thinning and complementary planting of nitrogen fixation precious tree species. The method comprises the following steps: dividing a degenerated forest into three types, namely a mild type, a moderate type and a severe type according to canopy density and forest stand composition; for the light tropical degraded forest, a stand structure is built through target tree marking and interference tree felling, stand renewal is driven in cooperation with pruning work and selective felling, and a different-age double-layer forest is cultivated; for the moderate tropical degraded forest, a forest window updating unit is constructed, and survival rate and preservation rate dual monitoring is executed to maintain the forest window updating unit; for the severe tropical degraded forest, native vegetation is reserved through strip cleaning, seedlings are planted in a planting strip to construct a strip recovery substrate, synchronous complementary planting is carried out, and finally the strip succession process is stabilized in combination with continuous tending. According to the method, the problem of repairing the fragmented area is effectively solved, synergistic interaction of soil improvement and economic value improvement is achieved, and the technology generalizability is remarkably enhanced through a standardized operation system.

The invention relates to the technical field of agricultural cultivation, in particular to a construction method of an improved double-Y tree shape suitable for sightseeing and picking of grapes, the constructed tree shape comprises two vertical trunks which are parallel and adjacent to each other and have a vertical distance of 60-70cm, each trunk cultivates two main vines which extend reversely along the row direction, the included angle between the trunk and the main vines is 90-100 degrees, and the main vines and the main vines are connected in parallel. Fruiting branches are cultivated on the main vines at intervals, and Y-shaped leaf curtains with upper and lower layers of differential included angles are formed; the construction method comprises the five steps of seedling seed selection and field planting, trunk and vine cultivation, fruiting mother branch cultivation, winter pruning and load capacity accurate control, wherein load capacity control achieves standardized operation through target backward pushing, flower and fruit thinning and field regulation and control. Wide-row thin planting is achieved, mechanical operation and sightseeing picking are facilitated, clusters are neat, the ornamental value is high, three-dimensional fruiting can be achieved, the picking period can be prolonged by matching with different varieties, meanwhile, the fruit loading capacity is precisely controllable, the grape yield and quality are effectively improved, and the economic benefit of a sightseeing picking garden is effectively improved; the method is suitable for large-scale popularization and application in the grape sightseeing picking industry.

The utility model discloses a kind of apricot tree thinning hand-held auxiliary devices, relating to apricot tree thinning technical field, including: adjusting rod, the top end of adjusting rod is equipped with mounting bracket, the both ends of mounting bracket are equipped with movable assembly respectively, one end of movable assembly is equipped with fruit thinning assembly and flower thinning assembly respectively, movable assembly includes installation shell, connecting shaft, rotating shaft and second elastic positioning assembly, installation shell is respectively installed at the both ends of mounting bracket, rotating shaft is installed at the outer side of one end of connecting shaft, second elastic positioning assembly is symmetrically installed at the both sides of connecting shaft, connecting shaft is installed at the inner side of installation shell by rotating shaft, the other end of connecting shaft is connected with fruit thinning assembly and flower thinning assembly respectively. When fruit thinning assembly and flower thinning assembly do not need to be used in the utility model, by pressing positioning knob inward, and applying overturning pressure to connecting shaft downward, so that fruit thinning assembly and flower thinning assembly overturn ninety degrees and are stored.

The utility model discloses a plant flower thinning manipulator for strawberry planting management in the technical field of strawberry pruning tools, which comprises a long handle, an upper handle and a distance adjusting mechanism, the upper handle is rotatably connected with a lower handle, one end of the lower handle, which is not connected with the upper handle, is fixedly provided with a lower traction rope, the bottom end of the long handle is fixedly connected with an upper cutting edge, and the upper cutting edge is fixedly connected with a lower traction rope. The upper cutting edge is rotationally connected with the lower cutting edge through a mounting shaft, the connecting frame is connected with the lower traction rope through a winding and tensioning mechanism, and the winding and tensioning mechanism is used for winding and unwinding the lower traction rope. The flower thinning device can solve the problem that a traditional flower thinning means easily causes fatigue and body injury of managers.

The utility model discloses a flower and fruit thinning trimmer for persimmon planting. The flower and fruit thinning trimmer comprises a grip convenient to hold and stretch; a flower and fruit receiving assembly with multiple side openings is stretched out of one side of the grip, and the flower and fruit receiving assembly is arranged on persimmon flowers and fruits needing to be trimmed in a sleeving mode through the openings in one side; the flower and fruit receiving assembly is connected with a pruning assembly, branches where persimmon flowers and fruits are located are pruned, and the pruning assembly is arranged on the other side of the grip in a sleeving mode; the grip is further provided with a force component which is used for dispersing gravity when flowers and fruits are trimmed. The utility model belongs to the technical field of persimmon planting, particularly relates to a flower and fruit thinning trimmer for persimmon planting, and aims to at least solve the problem of high risk of flower and fruit thinning operation during persimmon planting.

The invention relates to the technical field of fruit tree cultivation management, and particularly discloses an efficient flower thinning agent for peach trees and application thereof, and the flower thinning agent comprises the following main effective components: T6P with the concentration of 250-750 mg / L and ethephon with the concentration of 50-100 mg / L. According to peach trees treated by the flower thinning agent, the fruit setting rate is controlled between 20% and 25%, the weight of a single fruit reaches 190 g or above, the SSC content exceeds 12%, the fruit hardness is kept between 6.5 kg / cm < 3 > and 7.0 kg / cm < 3 >, and the fruit quality is remarkably improved. The formula is simple in components, low in cost and suitable for large-area popularization; the influence of environmental factors is small, and the stable flower thinning effect can be kept under different weather conditions.

The invention provides a method for reducing the dead fruit rate of macadamia nuts and preventing pericarp yellowing, which comprises the following steps: pruning fruit trees in the early stage of flower bud differentiation, spraying a composite insecticide in the early stage of flowering, and keeping the soil moisture content to be 60% or above. Spraying fruit retention liquid in a flower thinning and fruit retention period, using a root conditioning fertilizer and an insecticide in a flower falling and fruit setting period, spraying a leaf fertilizer and an insecticide in a fruit expanding period, and applying potassium sulfate in a final shell hardening and grease conversion period. By adding the anti-stiff fruit root slow-release fertilizer into the root conditioning fertilizer, it is guaranteed that fruit trees can continuously absorb mineral elements in high-temperature weather to reduce the stiff fruit rate, foliar fertilizer is sprayed to improve cell antioxidant enzyme activity and form a protective film, and the yellowing probability is reduced, so that the passing rate and peel yellowing of the fruit trees in the growth cycle are reduced, and the fruit quality is improved. The economic benefits of the macadamia nuts are greatly improved.

This invention provides a green cultivation method for improving the quality and efficiency of low-value litchi orchards. The method includes collecting data on the existing variety retention status, planting density, canopy overlap rate, canopy shading rate, number of new shoots per tree, and proportion of diseased and insect-infested branches in the orchard to be renovated. Based on these indicators, the low-value type and renovation intensity level are determined. Renovation paths are matched according to variety renewal, canopy closure renovation, or mixed renovation types, using methods such as top grafting, thinning and pruning, or a combination of both. The planting density after thinning, pruning height, number of grafted branches per tree, and number of new shoots per tree are determined based on the renovation intensity level. After the grafted branches survive or the second batch of new shoots turns green, the number of shoots is counted, and re-grafting, re-pruning, or topdressing to promote shoot growth are performed based on the statistical results. This invention enables the renovation of low-value orchards to shift from experience-based processing to a continuous management approach combining classification, grading, and feedback correction.

This invention relates to a tea scenting machine. This device uses a three-dimensional method to scent tea, which can save space significantly, thereby improving space utilization and achieving cost savings. Furthermore, the device can quickly and efficiently convert tea leaves from a thick pile to a thin layer or vice versa, effectively preventing the tea leaves from becoming stale or burnt due to delayed thinning. The entire conversion process is quick and convenient, saving time and effort, thus greatly reducing labor costs and the labor intensity of workers, thereby effectively improving the production efficiency of the scenting process.

The application discloses a fruit tree crown layer branch thinning and pruning tool, which comprises a rack, a gear motor, a belt transmission mechanism and a cutter disc assembly, the gear motor is installed on the rack, the cutter disc assembly comprises a transmission shaft, a fixing assembly, an upper disc cutter, a lower disc cutter and a support disc group, the fixing assembly is installed on the transmission shaft through a first bearing set, and the fixing assembly is fixedly connected with the rack; the gear motor is in transmission connection with the transmission shaft through the belt transmission mechanism; the upper disc cutter is fixedly installed at the top end of the transmission shaft, the lower disc cutter is fixedly installed at the bottom end of the transmission shaft, and the support disc group is installed on the transmission shaft through a second bearing set and located at the side close to the lower disc cutter. The upper disc cutter and the lower disc cutter which are spaced apart can thin and prune the branches in the interior of the fruit tree crown, the upper disc cutter is in non-support cutting, the lower disc cutter is in support cutting under the action of the support disc group, the application range is increased, the stability during cutting is increased, and the cutting quality and efficiency are improved.

The application discloses a low-efficiency forest reconstruction management method, and belongs to the technical field of low-efficiency forest management. The reconstruction management method comprises the steps of forest regulation, density regulation, mixed forest cultivation and post-period management and protection. The forest density is adjusted by forest regulation and thinning, and the health condition is improved, so that suitable habitat conditions are created for the growth of trees. Then, suitable native trees and shrubs are selected for mixed cultivation, and a mixed forest with complex structure and rich species is formed, so that the forest regeneration capacity is improved, the low-efficiency forest is positively succeeded, and the forest ecological benefits are improved. In the process, a composite regulation fertilizer is prepared and applied. The composite regulation fertilizer can help the seedlings to safely pass the slow growth period, promote root growth, adsorb the migrated nutrients in the surrounding soil and fix the nutrients at the root system of the seedlings, improve the competition ability of the seedlings for the soil nutrients in the forest, efficiently utilize the soil nutrients in the forest, ensure the good growth of the seedlings and effectively improve the afforestation benefits.

This invention relates to the field of forestry technology and discloses a method for regulating the cultivation of *Machilus chinensis* in forest gap microenvironments. The method includes: constructing a digital twin of *Machilus chinensis* plants by fusing lidar point cloud data, multispectral time-series data, and soil microenvironment parameters; calculating a comprehensive competition index based on three dimensions: light shading, nutrient competition, and spatial expansion potential; generating a graded thinning priority sequence by combining forest gap boundary characteristics and target retention density; and outputting a structured instruction set containing geographic coordinates, diameter at breast height (DBH) grade, and felling order. This invention achieves quantitative, precise, and traceable thinning operations, improving the growth efficiency and resource utilization level of *Machilus chinensis*.

A new and distinct variety of interspecific tree. The following features of the tree and its fruit are characterized with the tree budded on ‘Nemaguard’ Rootstock (non-patented), grown on Handford sandy loam soil with Storie Index rating 95, in USDA Hardiness Zone 9, near Modesto, California, with standard commercial fruit growing practices, such as pruning, thinning, spraying, irrigation and fertilization. Its novelty consists of the following combination of desirable features:1. Tree having a vigorous, upright growth habit.2. Tree being a regular and productive bearer of medium size fruit.3. Fruit with very good flavor and eating quality.4. Fruit with a high degree of red skin color.5. Clingstone fruit with firm, red flesh.

The invention discloses a grafting method suitable for quickly renewing mulberry varieties in a mulberry field of middle-high-trunk mulberries. The grafting method comprises the steps of branch reserving, grafting, side branch removing, fixing, bag removing, core stopping, summer cutting, fertilizing, bud thinning, leaf picking, follow-up management and the like. The grafting method can be put into production in half a year, so that the production period is remarkably shortened, the waste of land resources and time is reduced, and the land cost is saved. Through variety optimization, the stress resistance of mulberry varieties can be remarkably improved, the unit yield of a mulberry field is increased, and the economic benefits of the silkworm and mulberry industry are improved. Meanwhile, excellent single plants can be rapidly propagated, biological, economic, genetic and other basic characters of the mulberry germplasm resources are observed, and the mulberry germplasm resources are rapidly identified.

This utility model relates to the field of flower and fruit thinning technology, and discloses a plug-in type thinning wheel replacement structure for a flower and fruit thinner. It includes a housing, a fastening assembly inside the housing, and a cleaning assembly on the housing. The fastening assembly includes a mounting cavity, and the housing has a mounting groove. A slider is slidably connected within the mounting cavity, and a pull rod is mounted on the slider. A toggle block is fixedly connected to the side of the pull rod away from the slider. With this plug-in type thinning wheel replacement structure, when the thinning wheel needs to be replaced, pulling the toggle block outward releases its positioning effect on the thinning wheel, allowing it to be removed. Simultaneously, the pull rod drives the slider outward, compressing a spring and locking the new thinning wheel onto the connecting seat. Finally, releasing the toggle block allows it to reset under the spring's elasticity, automatically fastening the thinning wheel, thus achieving the advantage of quick and easy installation and removal of the thinning wheel.

The utility model relates to a precise flexible flower thinning machine for fruit trees. The precise flexible flower thinning machine comprises a walking device, a connecting frame installed on the walking device and a flower thinning unit installed on the connecting frame through an adjusting device. The flower thinning unit comprises a flower thinning support and a plurality of flower thinning execution mechanisms installed on the flower thinning support. The adjusting device comprises a transverse adjusting mechanism installed on the connecting frame, a vertical adjusting mechanism and an inclined adjusting mechanism, wherein the vertical adjusting mechanism and the inclined adjusting mechanism are installed on the transverse adjusting mechanism. Flower thinning operation is achieved by beating flowers of fruit trees through the flower thinning rope, lateral movement, lateral dip angle adjustment, longitudinal lifting adjustment and front-back dip angle adjustment of the flower thinning support are achieved through the hydraulic adjusting system, and therefore the flower thinning arms are driven to complete lateral movement, longitudinal movement and lateral and front-back dip angle adjustment. The height and angle of the flower thinning arm can be adjusted according to the tree shape and height of the fruit tree to fit the thinned fruit tree, and the rotating speed of the flower thinning shaft is adjusted according to the flower density of the fruit tree flowers to improve the precision of flower thinning operation.

The invention provides a precise flower thinning and fruit retention method for torreya grandis female trees, and belongs to the technical field of economic forest cultivation. According to the method, by observing the relative positions of flowers and fruits of biennial bearing branches, it is found that series-parallel type competition is most intense, the fruit setting potential is lowest, series type competition is weakest, and the fruit setting potential is highest, and it is determined that the branches, judged to be in the series-parallel type, in the biennial bearing branches are preferentially thinned in the subsequent flower thinning treatment; micro nutrition competition difference existing due to different relative positions of flowers and fruits in the cross-year flower and fruit coexistence phenomenon is introduced into a decision basis; then, through a flower thinning treatment test on three-year-old bearing branches, it is clear that flower thinning treatment is conducted seven days before pollination, new leaves germinated by female flower buds are reserved during flower thinning treatment, the fruit setting rate can be effectively increased, refined operation is achieved, flower and fruit nutrition competition is effectively relieved, and the yield of flowers and fruits is increased. The precise flower and fruit thinning and protecting method based on the combination of flower and fruit position classification and leaf reserving and flower thinning is formed, the effect is stable, operation is easy, and the method is suitable for popularization.

The invention discloses a forest stand structure regulation and control method for improving the carbon sequestration capacity of a pine forest, and particularly relates to the technical field of forestry ecological carbon sink regulation and control. Obtaining forest stand structure parameters and soil fertility parameters, and constructing a structure vector and a soil fertility vector; inputting the model into a carbon sink influence factor response model, and extracting a sensitive structure factor set C1; identifying grid units which do not meet a critical value based on C1, and delimiting a carbon sink structure bottleneck block P; performing regulation and control measures such as directional thinning, multi-layer building and structure intermediate cutting on the forest stand in the P block; dynamic evaluation is carried out through the change delta C of the carbon sink increase amount, and if the standard is not reached, the model weight is updated to form closed-loop optimization; the method realizes intelligent identification and accurate improvement of the pine forest carbon sequestration capability, and has the advantages of high operability, wide adaptability, remarkable carbon sequestration effect and the like.

This invention relates to the field of seeder technology, and more particularly to a combined corn and soybean seeding device, comprising a mounting frame, which is bolted to an agricultural machine. A switching mechanism is mounted on the front of the mounting frame, and several plowshares are mounted from left to right on the bottom of the switching mechanism. These plowshares create planting furrows when plowing the land. A planting mechanism is mounted on the front of the switching mechanism. The switching mechanism adjusts the distance between the plowshares and the planting mechanism, thereby changing the planting row spacing to simultaneously meet the planting needs of corn and soybeans. Several covering mechanisms are mounted from left to right on the outer wall of the planting mechanism. This device eliminates the need for multiple dedicated seeders, effectively reducing equipment purchase and transportation costs, and significantly improving the convenience and efficiency of field operations. It automatically adapts to the different seed sizes and sowing quantities required for corn and soybeans, precisely controlling the number of seeds sown per hill, avoiding the problems of over-sowing requiring thinning or under-sowing requiring re-sowing, thus improving sowing accuracy and seedling uniformity.

This utility model relates to the field of flower and fruit thinning technology, and discloses a flower and fruit thinning device with a small angle between the thinning wheel and the handle surface. It includes a first mounting frame and a second mounting frame, with an adjustment component at the bottom of both frames. A flower and fruit thinning component extending into the second mounting frame is disposed within the first mounting frame, and the adjustment component includes a connecting plate. When thinning taller flowers and fruits, this device first fixes the connecting plate to the bottom of the first and second mounting frames with bolts. Then, the first and second adjustment rods are pulled out sequentially from the handle, and the first external thread and the first internal thread are rotated to engage, as are the second external thread and the second internal thread, thus extending the entire adjustment component. By extending the length of the entire device, the height of the flower and fruit thinning can be adjusted.

The invention provides a malania oleifera multi-dimensional ecological niche regulation and control planting method, relates to the technical field of plant cultivation, and aims to ensure that a stable parasitic relationship is established between malania oleifera and hosts before nursery stock outplanting through associated seedling culture in the same cup, solve the key problems that flesh and root systems are easy to rot and difficult to parasitize, and greatly improve the transplanting survival rate of nursery stocks. According to the method, the root ecological niche and the light ecological niche of the malania oleifera are subjected to multi-dimensional, dynamic and accurate regulation and control. According to the method, associated seedling culture and under-forest progressive light control are organically combined, a technical chain of seedling culture-transplanting-growth promotion integration is formed, the contradiction that the environmental requirements in the seedling stage and the growing stage are disjointed is solved, and healthy and rapid growth of malania oleifera from seedlings to adult plants is achieved. The selected host plants are common and easy to obtain, the method is convenient to popularize and apply in vast rural areas of malania oleifera suitable growing areas, and the method has important significance for protecting the rare species and developing the rural characteristic industry.

This invention discloses a precision seeding device based on granulated Isatis indigotica seeds, comprising a base, a support frame fixedly connected to the base, a storage trough fixedly connected to the support frame, a feeding pipe at the bottom of the storage trough, the feeding pipe being fixedly connected to a fixed box, a second motor on the side of the fixed box, the output end of the second motor being fixedly connected to a round block, and the round block being rotatably connected to the fixed box. In this invention, the device integrates precision seeding, grooving, and soil covering into a single operation, eliminating the need for manual completion of seeding and soil covering processes, significantly reducing labor intensity. Simultaneously, precision control is achieved by adjusting the grooving and seed storage space using sliding blocks, reducing seed waste and avoiding the inaccurate seed quantity in traditional hill-planting techniques, thus ensuring fewer thinning steps. Furthermore, the integrated operation mode avoids the inefficiency of scattered manual operations, ensuring seeding progress and quality, and effectively alleviating planting cost pressures.

The application provides a kind of intelligent pruning and water management synergic control method and system of fruit tree cultivation, belong to cultivation management technical field, this method includes: based on the thermal infrared image sequence of the leaf surface of different directions of fruit tree canopy, the transpiration rate change of each direction leaf is extracted, and the initial time of local water stress of corresponding direction leaf is identified;When the time difference of local water stress initial time between any two direction leaves reaches the preset stress threshold, a thinning pruning scheme is constructed;After completing thinning pruning according to the thinning pruning scheme, the global recovery slope in the preset period after pruning and the global attenuation slope in the stressed period before pruning are calculated from the transpiration rate change curve of the whole canopy of fruit tree to obtain the water compensation priority coefficient;Based on water compensation priority coefficient, irrigation control is executed.The technical scheme provided by the application can solve the problem of pruning and irrigation synergy failure caused by the deviation of canopy hydraulic zoning and whole plant average diagnosis.

The utility model relates to the technical field of agricultural machinery, and discloses a machine for thinning fruits before blooming of Shuo-brand grapes, which comprises two machine bodies, handles are fixedly connected to the bottoms of the outer walls of the two machine bodies, two partition plates are fixedly connected to the inner walls of the two handles, a motor is arranged on the adjacent side of the two partition plates on the same side, and the two partition plates are arranged on the same side. The output ends of the two motors are both fixedly connected with transmission shafts, the outer walls of the two transmission shafts are both fixedly connected with transmission plates, the outer walls of the two transmission plates are both fixedly connected with driving shafts, the outer walls of the two driving shafts are both rotatably connected with driving plates, and the outer walls of the two driving plates are both fixedly connected with arranging plates. According to the grape fruit thinning device, the motor serves as a power source, the output end of the motor drives all the components to operate, finally the thinning teeth are driven to rotate at a high speed to comb grape inflorescences or flowers, weak and poor-development inflorescences or flowers are knocked down or pulled down, the fruit thinning purpose is achieved, and the grape fruit quality is improved.

The invention provides a high-illumination tree shape shaping cultivation method suitable for a close planting apple orchard, and relates to the technical field of agriculture. The high-illumination tree shape shaping cultivation method suitable for the close planting apple orchard comprises the following steps that S1, a vertical shaping frame is constructed; s2, seedling field planting and trunk shaping; s3, positioning a result triggering unit; s4, plane domestication of the result units; s5, culturing short fruit branch groups; and S6, updating and maintaining the tree body. According to the technology, a tree crown is compressed into a two-dimensional lighting surface through a vertical fruit wall structure, so that each leaf can receive direct light, the shading problem of an inner chamber is solved, and the fruit quality and yield are improved; the standardized plane structure facilitates operations such as flower thinning and fruit thinning, and convenience is provided for mechanization and automation of an orchard; the fruit tree management becomes a standardized process through a positioning promotion and planned updating mechanism, and the dependence on the skilled technology is reduced; the design of the flattened trunk and the modular fruiting unit strengthens nutrition delivery, alternate updating enables the tree body to be high in yield, and the phenomenon of fruiting in different years is solved.

The utility model relates to a small seed ridged field accurate and efficient seeding device, which mainly comprises a roller, a seeding cylinder and a u-shaped dragging frame, two ends of the roller are provided with a flower shaft frame, a rolling shaft and a cylinder with a radial opening, the seeding cylinder is internally provided with a plurality of seed bins, outer rings of two ends of the seeding cylinder are provided with hoops and an arc-shaped seeding insertion plate with seeding holes, and the U-shaped dragging frame is provided with a U-shaped dragging frame. The seeding cylinder is fixed in the roller, the direction of the seeding cylinder is consistent with that of an opening of the roller, and two straight edges of the u-shaped dragging frame are movably connected to two ends of the rolling shaft. The ridge-bordered small seed sowing machine is simple in structure, high in seeding efficiency, tidy in seedling emergence, capable of simplifying a thinning link, labor-saving, beneficial to accurate and efficient seeding of ridge-bordered small seeds, and wide in application prospect.

To provide a fruit thinning tool capable of efficiently and safely thinning unripe fruits by solving the problems that unripe fruits are manually removed using a stepladder or the like and that, when unripe fruits are thinned at a high place, branches may break and fall from the tree, or the worker may accidentally fall and get injured. [Solution] The unripe fruit picker comprises an extendable handle 1, an inverted triangular wire 2 attached to one end of the handle, and a blade 3 attached to the base of the inverted triangular wire. The blade is made of a rectangular metal plate and is positioned so that its tip faces the inside of the inverted triangle.

The application relates to an orchard agricultural machine control method and a control system. The control system collects analog signals and digital signals of each road of an entire vehicle, a spraying pollination machine tool, a combing machine tool, a pruning machine tool, a mowing machine tool and a ditching and fertilizing machine tool to determine a matched operation machine tool of the entire machine. The control system controls according to a corresponding operation mode selected according to the matched operation machine tool of the entire machine. The application can realize accurate pollination, thinning and pruning operation functions in an operation process, improve the flowering and fruit setting rate of a fruit tree, and further improve the automation and intelligent level of the entire orchard management agricultural machine equipment.

The invention belongs to the technical field of vegetable cultivation, and particularly relates to a sulfur-based fertilization method for promoting watermelon growth and improving quality and application. The fertilization method comprises the following steps: mixing peat, vermiculite and perlite according to a volume ratio of 3: 1: 1 to prepare a seedling culture substrate, adding sulfur powder, uniformly mixing, adjusting the water content to 55-65%, using the substrate as a base fertilizer, standing for 10 days, sowing watermelon seeds after germination acceleration, and carrying out seedling culture; when the watermelon seedlings grow to a one-leaf and one-core period, topdressing is started; the topdressing is a normal-sulfur Hoagland nutrient solution or a low-sulfur Hoagland nutrient solution, the topdressing is applied once every two days, the dosage of each time is 50 mL / plant, and the topdressing is continuously applied to the early stage of watermelon vine growing; and performing conventional pruning, pollination and fruit thinning management in and after the watermelon vine growing period until fruits are mature. The fertilizing method can promote plant growth, enhance oxidation resistance, and significantly improve watermelon fruit quality.