JP2022114275A - Method for raising lawn - Google Patents

Abstract

To shorten a period until planting of lawn is completed by potted lawn seedlings.SOLUTION: A method for raising lawn includes: a lawn-mowing process S12 of mowing a lawn grass, on which lawn seedlings are planted by a predetermined gap, at a predetermined mowing height; and a pressing process S13 of pressing creeping stems of the lawn grass on a ground surface.SELECTED DRAWING: Figure 1

Description

The present disclosure relates to lawn growing methods.

As a lawn formation method, a sowing method of sowing seeds of lawn grass, a method of spreading lawn grass cut in a square shape, a spreading method of sprinkling stolons of lawn grass and pressing them against the ground (for example, Patent Document 1), or a grid pattern. A pot turf seedling construction method (for example, Non-Patent Document 1) is known, in which the area between the pot turf seedlings is filled with the growth of turfgrass in the pot turf seedlings planted in a shape to form a lawn on one side. The potted turf seedling method involves planting potted turf seedlings at intervals and is easy to plant even for non-specialists. can be reduced.

Japanese Patent Application Laid-Open No. 2000-125611

T.K.K. Co., Ltd., “Tifton grass pot seedlings”, September 17, 2010, [searched December 7, 2020], Internet <URL: http://www.dkk-jp. com/tifton.htm, URL: https://youtu.be/cPQxXiFzS-o>

By the way, according to the potted lawn seedling method, it takes about three months from planting the potted lawn seedlings until the areas between the potted lawn seedlings are filled and the whole area is covered with grass. Therefore, it cannot be applied to a place where it is desired to quickly turn it into a lawn, and the place of use is limited.

The present disclosure has been made in view of the above problems, and an object thereof is to provide a lawn growing method capable of shortening the period until completion of lawn formation by potted lawn seedlings.

In order to achieve the above object, a lawn growing method according to one aspect of the present disclosure includes a lawn mowing step of cutting lawn grass, in which lawn seedlings are planted at predetermined intervals, at a predetermined cutting height; and a pressing step.

A desirable aspect of the lawn growing method includes a setting step of setting positions and order of pressing the stolons in the pressing step.

As a desirable aspect of the lawn growing method, in the setting step, the positions and order of pressing the stolons are set based on the planting positions and intervals of the grass seedlings.

As a desirable aspect of the lawn growing method, in the setting step, the position to press the stolons is set based on the internode length of the stolons.

A desirable aspect of the lawn growing method includes an imaging step of imaging the lawn grass, and in the setting step, the position and order of pressing the stolons are set based on the state of the stolons of the lawn grass photographed in the imaging step. do.

As a desirable aspect of the lawn growing method, the lawn mowing step is performed by a lawn mower having a cutting blade for cutting the lawn grass and one or more wheels.

As a desirable aspect of the lawn growing method, the pressing step is carried out by the wheel of the lawnmower.

As a desirable aspect of the lawn growing method, the wheels have protrusions that protrude radially outward from the peripheral surface.

As a desirable aspect of the lawn growing method, the predetermined interval is 5 times or more and 15 times or less the horizontal width of the bed soil to be transplanted together with the lawn seedlings.

Advantageous Effects of Invention According to the present disclosure, it is possible to shorten the period until completion of lawn formation by potted lawn seedlings.

FIG. 1 is a flow chart showing the lawn growing method of the first embodiment. FIG. 2 is a plan view schematically showing an example of the planting process of the first embodiment. FIG. 3 is an explanatory diagram for explaining the lawn mowing process of the first embodiment. FIG. 4 is an explanatory diagram for explaining the pressing process of the first embodiment. FIG. 5 is a side view showing a configuration example of a lawn mower that performs the lawn mowing process and the pressing process of the first embodiment. FIG. 6 is a flow chart showing the lawn growing method of the second embodiment. FIG. 7 is a flow chart showing the lawn growing method of the third embodiment. FIG. 8 is an explanatory diagram for explaining the setting process of the third embodiment. FIG. 9 is an explanatory diagram for explaining the setting process of the third embodiment. FIG. 10 is a flow chart showing the lawn growing method of the fourth embodiment.

The present disclosure will be described in detail below with reference to the drawings. Note that the present disclosure is not limited to the description of the following embodiments. Components in the following embodiments include those that can be easily replaced by those skilled in the art, or those that are substantially the same. Furthermore, the constituent elements in the embodiments described below can be omitted, replaced, or changed in various ways without departing from the gist of the present disclosure. In the following embodiments, when exemplifying the embodiments of the present disclosure, necessary constituent elements will be described, and other constituent elements will be omitted.

(First embodiment)
The lawn growing method of the first embodiment includes a pot lawn seedling construction method in which areas between pot lawn seedlings planted at intervals are filled with the growth of lawn grass to form a lawn on one side. In a first embodiment, the turfgrass is a stollowing cultivar. The turfgrass of the first embodiment is a cultivar containing above-ground stolons and underground stolons, or a cultivar containing underground stolons. The above-ground stolons are stolons that extend laterally on the ground. Underground stolons are stolons that extend laterally underground near the ground. Turf grasses include, for example, stolonally propagated bermudagrass, such as Tifton 419. Bermudagrass includes above-ground stolons and underground stolons.

FIG. 1 is a flow chart showing the lawn growing method of the first embodiment. The lawn growing method of the first embodiment includes a planting step S11, a lawn mowing step S12, a pressing step S13, and a determination step S14.

FIG. 2 is a plan view schematically showing an example of the planting step S11 of the first embodiment. As shown in FIG. 2, the planting step S11 is a step of planting the potted lawn seedlings 2 of the lawn grass 1 on the ground G of the field to be turned into a lawn. The potted turf seedling 2 includes bed soil 3 and turf seedling 4 . The bed soil 3 is soil contained in a container (pot) when raising the turfgrass 1 from the turf seed to the turf seedling 4 . The composition of the bed soil 3 is preferably the same as or close to that of the field in which the potted lawn seedlings 2 are to be transplanted. The turf seedling 4 represents the turfgrass 1 in which the turf seed sown on the bed soil 3 contained in the container has germinated.

In the planting step S11, a plurality of potted lawn seedlings 2 are planted at predetermined intervals I in a grid pattern when viewed from above. The potted lawn seedlings 2 are preferably planted so that the upper end of the bed soil 3 is at the same height as the ground G or in the ground (see FIGS. 3 and 4, for example). At least 4 potted grass seedlings 2 are preferably planted per 1 m ² . That is, the interval I is preferably 50 cm or less.

Further, the interval I is preferably set according to the horizontal width of the potted lawn seedlings 2 at the time of transplanting. That is, when the interval I is narrow, the number of potted lawn seedlings 2 used increases, resulting in an increase in cost. On the other hand, if the interval I is too wide, it will take too long to form a lawn. The interval I is, for example, 5 times or more and 15 times or less, preferably 7 times or more and 13 times or less, the horizontal width of the bed soil 3 of the potted lawn seedling 2 . For example, when the bed soil 3 has a width of 5 cm, by setting the interval I to 30 cm or more and 70 cm or less, it is possible to form a lawn in about 3 months.

FIG. 3 is an explanatory diagram for explaining the lawn mowing step S12 of the first embodiment. As shown in FIG. 3, the lawn mowing step S12 is a step of mowing the lawn grass 1 at a predetermined cutting height H. As shown in FIG. When the turfgrass 1 grows upward, the production capacity by photosynthesis is greater in the upward growing portion than in the vicinity of the root. If the lawn grass 1 grows excessively, the vicinity of its roots will age. Therefore, if the lawn grass 1 is mowed after it has grown excessively, an aged portion with low productivity will remain. Therefore, by frequently cutting the lawn grass 1, it is possible to suppress the upward growth while leaving the part with high production capacity, distribute nutrients to the stolons 5 that spread and extend laterally, and promote the lateral growth. can be done.

When the lawn grass 1 is a variety such as Tifton 419, which includes both above-ground and underground stolons, the stolons 5 extending laterally on the ground tend to rise above the ground G. Therefore, in the lawn mowing step S12, the cutting height H is preferably higher than the height at which the stolons 5 raised from the ground G are cut, and lower than the height at which aging can be suppressed in the vicinity of the root of the lawn grass 1 by cutting. . The cutting height H is, for example, 20 mm or more and 100 mm or less, preferably 40 mm or more and 50 mm or less. In addition, when the lawn grass 1 has grown beyond 100 mm, it is preferable to set the cutting height H to 50 mm or more and 100 mm or less. In addition, the mowing step S12 is repeatedly performed together with the pressing step S13, which will be described later, before the lawn grass 1 excessively grows upward. The lawn mowing step S12 is performed, for example, once a week or more and seven times or less.

FIG. 4 is an explanatory diagram for explaining the pressing step S13 of the first embodiment. As shown in FIG. 4, the pressing step S13 is a step of pressing the stolons 5 of the lawn grass 1 against the ground G. As shown in FIG. The pressing step S13 is performed at the same time as or immediately after the mowing step S12. The stolons 5 of the turfgrass 1 have roots 7 sprouting from each node 6 . When the roots 7 of the nodes 6 of the stolons 5 take root on the ground G, the turfgrass 1 absorbs nutrients from the ground G through the roots 7 of the nodes 6 that have taken root. be done. That is, in the pressing step S13, by pressing the stolons 5 lifted up from the ground G against the ground G, rooting of the roots 7 of the nodes 6 to the ground G is promoted. In the pressing step S13, it is preferable to press the stolons 5 against the ground G so that the nodes 6 of the stolons 5 are pushed into the ground G. Alternatively, in the pressing step S13, it is preferable to press the stolons 5 against the ground G so that part of the nodes 6 of the stolons 5 are pushed into the ground G.

In the determination step S14 shown in FIG. 1, it is determined whether or not the lawn grass 1 on the ground G has been completed. When the lawn formation is completed (determination step S14; Yes), the series of steps in the flowchart shown in FIG. 1 are terminated. If the lawn-forming is not completed (determination step S14; No), the process returns to the lawn-mowing step S12 after a predetermined period of time, and the lawn-mowing step S12 and the pressing step S13 are repeated until the lawn-forming is completed. The predetermined period is set according to the frequency of the lawn mowing step S12 described above. The predetermined period is not constant, and is appropriately set according to the elapsed time from the planting step S11, the growth state of the lawn grass 1, the environment such as the weather and temperature, and the like.

FIG. 5 is a side view showing a configuration example of the lawn mower 100 that performs the lawn mowing step S12 and the pressing step S13 of the first embodiment. In the following description, the lawn mower 100 of the first embodiment is assumed to be an autonomous or remote-controlled compact vehicle, but the present disclosure is not limited to this, and may be a vehicle requiring an operator. , handcarts or other man-powered vehicles. The lawn mower 100 of the first embodiment has a main body portion 110 , a pair of wheels 120 , a cutting blade portion 130 , a turning portion 140 and a pair of wheels 150 .

Main body 110 is arranged on the front side of lawn mower 100 . The body portion 110 is provided with a turning mechanism 111 , wheels 120 and a cutting blade portion 130 . The main body 110 includes, for example, rotational drive sources for the wheels 120, the cutting blade 130, the turning unit 140, and the wheels 150; A communication device that can communicate with a controller that remotely operates 100, a fuel source, or the like is mounted. Fuel sources include, for example, batteries, gasoline tanks, cassette-type gas cylinders, and the like.

The body portion 110 is connected to a swivel portion 140 provided at the rear via a swivel mechanism 111 . The turning mechanism 111 turns the turning portion 140 around the vertical axis with respect to the main body portion 110 . The turning mechanism 111 is driven by, for example, a power source provided in the body portion 110 . The turning mechanism 111 is controlled by, for example, a control device provided in the main body 110 .

Wheel 120 is the front wheel of lawn mower 100 . The wheels 120 are arranged on the left and right sides of the body portion 110 . Wheel 120 rotates about a horizontal axis with respect to main body 110 . Wheels 120 are driven by, for example, a power source provided in main body 110 . Wheels 120 are controlled by, for example, a control device provided in main body 110 .

Wheel 120 has protrusions 121 that protrude radially outward from the peripheral surface. In the first embodiment, a plurality of protrusions 121 are evenly provided over the entire circumference of the wheel 120 . The protrusion 121 preferably has, for example, a tapered shape in which a cross-sectional shape perpendicular to the axis of the wheel 120 tapers outward in the radial direction of the wheel 120 .

In the first embodiment, the cutting blade portion 130 has a disc shape whose axis is parallel to the vertical direction. The cutting blade portion 130 is provided below the body portion 110 so as to rotate about the vertical axis with respect to the body portion 110 . The cutting blade portion 130 is driven by, for example, a power source provided in the body portion 110 . The cutting blade portion 130 is controlled by, for example, a control device provided in the body portion 110 .

The cutting blade portion 130 has a cutting blade on its peripheral edge. The height of the cutting blade in the vertical direction from the ground G is the same as the cutting height H in the lawn mowing step S12. By rotating the cutting blade portion 130 around the vertical axis, the cutting blade cuts the lawn grass 1 at the cutting height H. The cutting blade is made of a material containing at least one of metal and nylon. The shape of the cutting blade is not limited to that of the first embodiment, and may include, for example, at least one of reel, rotary, chip saw, razor-like, and cord-like.

The turning portion 140 is arranged on the rear side with respect to the main body portion 110 . The swivel part 140 is connected to the main body part 110 via the swivel mechanism 111 . The turning portion 140 turns around the vertical axis with respect to the main body portion 110 by the turning mechanism 111 .

Wheels 150 are the rear wheels of lawn mower 100 . The wheels 150 are arranged on the left and right sides of the turning section 140 . Wheel 150 rotates about a horizontal axis with respect to revolving portion 140 . Wheels 150 are driven by, for example, a power source provided in main body 110 . Wheels 150 are controlled by, for example, a control device provided in main body 110 . The lawn mower 100 turns left and right by turning the turning portion 140 about the vertical axis with respect to the main body portion 110 by the turning mechanism 111 .

Wheel 150 has protrusions 151 that protrude radially outward from the peripheral surface. In the first embodiment, a plurality of protrusions 151 are provided evenly over the entire circumference of the wheel 150 . The protrusion 151 preferably has, for example, a tapered shape in which a cross-sectional shape perpendicular to the axis of the wheel 150 tapers outward in the radial direction of the wheel 150 .

In the lawn mowing step S12 of the first embodiment, the lawn mower 100 mows the lawn grass 1 at the cutting height H with the cutting blade portion 130 while traveling on the ground G of the field to be turned into a lawn. Further, in the pressing step S13 of the first embodiment, the lawn mower 100 runs on the ground G of the field to be turned into a lawn, thereby stepping on the stolons 5 of the lawn grass 1 with the wheels 120 and 150 and pressing them against the ground G. do. At this time, since the stolons 5 are pushed into the ground by the projections 121 and 151 of the wheels 120 and 150, the roots 7 of the nodes 6 can be promoted to take root on the ground G.

As described above, the lawn growing method of the first embodiment includes the lawn mowing step S12 in which the lawn grass 1 having the lawn seedlings 4 planted at a predetermined interval I is cut at a predetermined cutting height H, and the stolons 5 of the lawn grass 1 and a pressing step S13 of pressing against the ground G.

In the lawn growing method of the first embodiment, by cutting the lawn grass 1 at a predetermined cutting height H, vertical growth is suppressed, and nutrients obtained from the ground G or through photosynthesis are used for horizontal growth. can be encouraged to do so. Also, by pressing the stolons 5 against the ground G, rooting of the roots 7 sprouting from the nodes 6 of the stolons 5 can be promoted. Since water and nutrients can be absorbed from the ground G through the roots 7 of the portion where the stolons 5 have taken root, the growth of the turfgrass 1 in the lateral direction can be further promoted.

As a result, the period from planting the potted lawn seedlings 2 to the completion of lawn formation can be shortened. can be applied.

Further, in the lawn growing method of the first embodiment, the lawn mowing step S12 is performed by the lawn mower 100 having a cutting blade (cutting blade portion 130) for cutting the lawn grass 1 and one or more wheels 120, 150. be done. Since the lawn mower 100 is moved by the rolling of the wheels 120 and 150, the height of the cutting blade portion 130 from the ground G, that is, the cutting height H does not fluctuate greatly. As a result, the lawn grass 1 can be cut at a constant cutting height H, which is higher than the height at which the stolons 5 raised from the ground G are cut, and the height near the root of the lawn grass 1 can be suppressed by cutting. The turfgrass 1 can be mowed at a suitable cutting height H which is lower than the height.

Further, in the lawn growing method of the first embodiment, the pressing step S13 is performed by the wheels 120 and 150 of the lawn mower 100. As shown in FIG. As a result, since the lawn mowing step S12 and the pressing step S13 can be performed at the same time, it is possible to reduce the number of man-hours required for forming a lawn.

Moreover, in the lawn growing method of the first embodiment, the wheels 120 and 150 have protrusions 121 and 151 that protrude radially outward from the peripheral surface. As a result, when the stolons 5 of the lawn grass 1 are stepped on by the wheels 120, 150 and pressed against the ground G, the stolons 5 can be pushed into the ground by the projections 121, 151, so that the ground of the roots 7 of the nodes 6 can be pushed into the ground. Rooting to G can be promoted.

In the first embodiment, the lawn mowing step S12 is performed by the lawn mower 100 having the wheels 120 and 150, but the present disclosure is not limited to this. good. Further, in the first embodiment, the mowing step S12 and the pressing step S13 are performed by the same lawn mower 100, but the pressing step S13 may be performed by a separate jig.

Further, in the lawn growing method of the first embodiment, the predetermined interval I is 5 times or more and 15 times or less the horizontal width of the bed soil 3 to be transplanted together with the lawn seedlings. If the interval I is narrow, the number of potted lawn seedlings 2 to be used increases, resulting in high costs. By setting the interval I as described above, it is possible to reduce costs and shorten the period until the completion of lawn formation.

(Second embodiment)
FIG. 6 is a flow chart showing the lawn growing method of the second embodiment. The lawn growing method of the second embodiment includes a planting step S21, a setting step S22, a lawn mowing step S23, a pressing step S24, and a determination step S25. Since the planting step S21 and the lawn mowing step S23 of the second embodiment are the same as the planting step S11 and the lawn mowing step S12 of the first embodiment, description thereof is omitted.

The setting step S22 sets the position and order of pressing the stolons 5 (see FIG. 4 and the like) in the pressing step S24. More specifically, in the setting step S22 of the third embodiment, the position and order of pressing the stolons 5 are set based on the planting positions and intervals I of the grass seedlings 4 (see FIG. 2). In the setting step S22, map data including the planted position of the lawn seedlings 2 in the field to be lawn may be obtained in advance.

In the setting step S22, for example, the stolons 5 may be pressed at a position a predetermined distance from the position where the potted lawn seedlings 2 are planted. In the setting step S22, for example, it may be set so that the stolons 5 are pressed in order of gradually moving away from the position where the potted lawn seedling 2 is planted. In the setting step S22, the stolons 5 may be pressed at different positions and in different orders for each elapsed time from the planting step S21.

In the pressing step S24 of the second embodiment, the stolons 5 of the lawn grass 1 are pressed against the ground G in the positions and in the order set in the setting step S22. In the lawn growing method of the second embodiment, when the pressing step S24 is performed by a lawn mower 100 as shown in FIG. 5, the travel route of the lawn mower 100 may be set in the setting step S22. In the setting step S22, the position and order of cutting the lawn grass 1 in the lawn mowing step S23 may be set.

In the determination step S25 of the second embodiment, similarly to the determination step S14 of the first embodiment, it is determined whether or not the lawn grass 1 on the ground G has been completed. When the lawn formation is completed (determination step S25; Yes), the series of steps of the flowchart shown in FIG. 6 is terminated. If the lawn formation is not completed (determination step S25; No), the process returns to the lawn mowing step S23 after a predetermined period of time, and the lawn mowing step S23 and the pressing step S24 are repeated until the lawn formation is completed. The predetermined period is set according to the frequency of the lawn mowing step S23 described above. The predetermined period is not constant, and is appropriately set according to the elapsed time from the planting step S21, the growth state of the lawn grass 1, the environment such as the weather and temperature, and the like.

As described above, the lawn growing method of the second embodiment includes the setting step S22 of setting the position and order of pressing the stolons 5 in the pressing step S24. As a result, the positions and order of pressing the stolons 5 in the pressing step S24 are set in advance, so that the pressing step S24 can be performed efficiently.

Further, in the lawn growing method of the second embodiment, in the setting step S22, the position and order of pressing the stolons 5 are set based on the planting positions and intervals I of the grass seedlings 4 . As a result, the positions and the order of pressing the stolons 5 in the pressing step S24 are set in advance based on the planted positions and intervals I of the grass seedlings 4, so that the pressing step S24 can be performed efficiently.

(Third embodiment)
FIG. 7 is a flow chart showing the lawn growing method of the third embodiment. The lawn growing method of the third embodiment includes a planting step S31, a setting step S32, a lawn mowing step S33, a pressing step S34, and a determination step S35. The planting step S31, the lawn mowing step S33, and the determination step S35 of the third embodiment are the same as the planting step S21, the lawn mowing step S23, and the determination step S25 of the second embodiment, and thus description thereof is omitted.

8 and 9 are explanatory diagrams for explaining the setting step S32 of the third embodiment. FIG. 9 is a graph showing an example of a histogram of internode lengths between adjacent nodes 6 of stolons 5 . The setting step S32 of the third embodiment is a step of setting the position to press the stolons 5 in the pressing step S34 based on the internode lengths L1 and L2 of the stolons 5 of the turfgrass 1 .

As shown in FIG. 8 , roots 7 emerge from each node 6 of stolons 5 of turfgrass 1 . In the setting step S32, for example, histograms of the internode lengths L1 and L2 of the stolons 5 as shown in FIG. In the example shown in FIG. 9, the histograms of the internode lengths L1 and L2 of the stolons 5 are generally normally distributed.

In the setting step S32, for example, based on the planted position of the potted lawn seedling 2 and the average values of the internode lengths L1 and L2 of the stolons 5, the nodes 6 of the stolons 5 are estimated, and based on the estimated positions of the nodes 6 , the position to press the stolons 5 may be set. That is, for example, in the setting step S32, the stolons 5 at the estimated positions of the nodes 6 may be set to be pressed in the pressing step S34. In the setting step S32, for example, the stolons 5 at the estimated positions of the nodes 6 may be set to be pressed in the pressing step S34 in the order closest to the position where the potted lawn seedlings 2 are planted.

In the pressing step S34 of the third embodiment, the stolons 5 of the lawn grass 1 are pressed against the ground G in the positions and in the order set in the setting step S32. In the lawn growing method of the third embodiment, when the pressing step S34 is performed by the lawn mower 100 as shown in FIG. 5, the travel route of the lawn mower 100 may be set in the setting step S32. In the setting step S32, the position and order of mowing the lawn grass 1 in the mowing step S33 may be set.

As described above, in the lawn growing method of the third embodiment, the position for pressing the stolons 5 is set based on the internode lengths L1 and L2 of the stolons 5 in the setting step S32. As a result, the position and order of pressing the stolons 5 in the pressing step S24 are set in advance based on the internode lengths L1 and L2 of the stolons 5, so that the pressing step S24 can be performed efficiently.

(Fourth embodiment)
FIG. 10 is a flow chart showing the lawn growing method of the fourth embodiment. The lawn growing method of the fourth embodiment includes a planting step S41, an imaging step S42, a setting step S43, a lawn mowing step S44, a pressing step S45, and a determination step S46. Since the planting step S41 and the lawn mowing step S44 of the fourth embodiment are the same as the planting step S11 and the lawn mowing step S12 of the first embodiment, description thereof is omitted.

The imaging step S42 is a step of imaging the lawn grass 1 . The imaging device for imaging the lawn grass 1 in the imaging step S42 may be an imaging device installed in a field to be turned into a lawn, or may be an imaging device mounted on a lawnmower 100 as shown in FIG. In the imaging step S42, the state of the stolons 5 of the lawn grass 1 is imaged. The state of the stolons 5 includes, for example, a state in which the stolons 5 are raised, a state in which nodes 6 including roots 7 are not rooted, and the like.

The setting step S43 of the fourth embodiment is a step of setting positions and order of pressing the stolons 5 in the pressing step S45 based on the state of the stolons 5 of the turfgrass 1 captured in the imaging step S42. In the setting step S43, map data including the planted position of the lawn seedlings 2 in the field to be lawn may be acquired in advance. In the setting step S43, the image data captured in the imaging step S42 may be linked to the map data to set the position and order of pressing the stolons 5. FIG.

In the setting step S43, for example, when the stolons 5 of the lawn grass 1 imaged in the imaging step S42 are detected to float above a predetermined height, the corresponding stolons 5 may be set to be pressed. In the setting step S43, for example, in the stolons 5 of the lawn grass 1 imaged in the imaging step S42, when a knot 6 rising from the ground G is detected, the corresponding knot 6 or the vicinity of the knot 6 is set to be pressed. good too.

In the pressing step S45 of the fourth embodiment, the stolons 5 of the lawn grass 1 are pressed against the ground G at the positions and in the order set in the setting step S43. In the lawn growing method of the fourth embodiment, when the pressing step S45 is performed by the lawn mower 100 as shown in FIG. 5, the travel route of the lawn mower 100 may be set in the setting step S43. In the setting step S43, the position and order of cutting the lawn grass 1 in the lawn mowing step S44 may be further set.

In the determination step S46 of the fourth embodiment, similarly to the determination step S14 of the first embodiment, it is determined whether or not the lawn grass 1 on the ground G has been completed. When the lawn formation is completed (determination step S46; Yes), the series of steps in the flowchart shown in FIG. 10 is terminated. If the lawn-forming is not completed (determination step S46; No), the process returns to the imaging step S42 after a predetermined period of time, and the imaging step S42, the setting step S43, the mowing step S44, and the pressing step S45 are repeated until the lawn-forming is completed. implement. The predetermined period may be set according to the frequency of the mowing step S44 described above, or may be set based on the state of the stolons 5 of the lawn grass 1 captured in the imaging step S42. The predetermined period is not constant, and is appropriately set depending on the elapsed time from the planting step S41, the growth state of the lawn grass 1, the environment such as the weather and temperature, and the like.

The lawn growing method of the fourth embodiment may be implemented by an automatic system that includes an imaging device, a computer, and an autonomously mobile lawnmower. The imaging device is installed in a field to be grassed, and performs imaging step S42 at a predetermined cycle. The computer acquires imaging data captured by the imaging device, detects the state of the stolons 5 from the imaging data, and performs the setting step S43. The lawn mower automatically performs the lawn mowing step S44 and the pressing step S45 based on the settings made by the computer.

As described above, the lawn growing method of the fourth embodiment includes the imaging step S42 of imaging the turfgrass 1, and in the setting step S43, based on the state of the stolons 5 of the turfgrass 1 imaged in the imaging step S42, The position and order of pressing the stolons 5 are set. As a result, the position and order of pressing the stolons 5 in the pressing step S24 are set in advance based on the captured state of the stolons 5 of the lawn grass 1, that is, the actual state of the stolons 5, so that the pressing step S24 can be performed efficiently. In addition, the stolons 5 can be rooted more favorably.

1 Lawn Grass 2 Pot Lawn Seedling 3 Bed Soil 4 Lawn Seedling 5 Stolons 6 Nodes 7 Roots 100 Lawnmower 110 Main Body 111 Turning Mechanism 120 Wheel 121 Projection 130 Cutting Blade 140 Turning Part 150 Wheel 151 Projection G Ground I Spacing H Cutting height L1, L2 Internode length S11, S21, S31, S41 Planting process S12, S23, S33, S44 Mowing process S13, S24, S34, S45 Pressing process S14, S25, S35, S46 Judging process S22, S32, S43 setting step S42 imaging step

Claims (9)

a lawn mowing step of mowing the lawn grass planted with lawn seedlings at predetermined intervals at a predetermined cutting height;
a pressing step of pressing the stolons of the lawn grass against the ground;
A method of growing a lawn, comprising: Including a setting step of setting the position and order of pressing the stolons in the pressing step,
The lawn growing method according to claim 1. In the setting step, the positions and order of pressing the stolons are set based on the planting positions and intervals of the grass seedlings.
The lawn growing method according to claim 2. In the setting step, a position to press the stolons is set based on the internode length of the stolons.
The lawn growing method according to claim 2 or 3. including an imaging step of imaging the lawn grass;
In the setting step, based on the state of the stolons of the lawn grass captured in the imaging step, the position and order of pressing the stolons are set.
The lawn growing method according to any one of claims 2 to 4. The lawn mowing step is performed by a lawn mower having a cutting blade for cutting the lawn grass and one or more wheels.
The lawn growing method according to any one of claims 1 to 5. the pressing step is performed by the wheel of the lawn mower;
The lawn growing method according to claim 6. The wheel has a protrusion that protrudes radially outward from the peripheral surface,
The lawn growing method according to claim 7. The predetermined interval is 5 times or more and 15 times or less than the horizontal width of the bed soil to be transplanted together with the lawn seedlings.
The lawn growing method according to any one of claims 1 to 8.

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