JP2019176766A - Growth control method, system, program and memory medium for herbaceous plant - Google Patents

Abstract

To provide a growth control method for a herbaceous plant capable of achieving a desired growth state of the plant at a desired date.SOLUTION: There is provided a growth control method of a herbaceous plant for controlling growth of a herbaceous plant, temperature control is performed at target date average temperature indicated by the formula (1), for controlling the growth state of the plant to a desired growth state at a desired day number, thereby solving problems.SELECTED DRAWING: Figure 2

Description

  The present invention provides a desired growth state on a desired day for a herbaceous plant whose growth stage is the growth stage of each stage of seedling start, extraction, flowering, and flowering and the growth stage over the entire period from the start of seedling to flowering. The present invention relates to a growth control method, a growth control system, a program, and a storage medium of a herbaceous plant that is grown on a plant.

  Patent Document 1 describes the construction of a growth system based on the integrated temperature value of a crop / the presence or absence of an inverted layer in a field, for example, determines the growth stage and set temperature using the integrated value, and sets the set temperature. And the growth and growth of tea trees or fruit trees that are configured to enable selective operation of fan and / or warm air blower control or sprinkler control according to a command from the control unit that compares the current temperature of the field. Techniques relating to growth protection devices are disclosed.

  In Patent Document 2, a growth curve generation unit converts normal vegetation time-series data into a vegetation index / integrated temperature vegetation growth curve, and a key time extraction unit extracts a key time for the integrated temperature, The high-dimensional analysis model generation unit generates a high-dimensional analysis model representing a new plant growth situation based on the key time. Using this model, the disaster judgment unit and the trend prediction unit have made a vegetation growth analysis system that realizes agricultural management such as constant plant observation and early yield prediction by making disaster judgment and growth trend prediction, respectively. .

  In Patent Document 3, a temperature transition is taken in, and a physiological growth position is calculated by integrating or integrating a function between the temperature and physiological growth acceleration twice with the growth time, or based on this and past growth data. The growth of the plant can be obtained by predicting the growth time that will be the specific growth position from the prediction of the future temperature transition or by obtaining the required temperature transition by giving the conditions of the specific growth position and the specific growth time. A method for prediction and growth management is disclosed.

  Non-Patent Document 1 sets the treatment temperature obtained by the number of days until the specific date based on the relational expression between the flowering speed and the treatment temperature so that the cut flowers at the bud stage of lilies, small berries and radish are harvested and flowered on the specific day. Thus, a technique for changing the growth rate of cocoons is disclosed.

Japanese Patent Laid-Open No. 2006-168024 Japanese Patent Laying-Open No. 2015-188333 JP-A-8-228603

"Specific day flowering technology by adjusting flowering after harvesting" March 22, 2013, 1st edition, published by Osaka Prefectural Environmental Agriculture, Forestry and Fisheries Research Institute

  The techniques of Patent Documents 1 to 3 are techniques related to agricultural management such as growth and growth by avoiding frost and frost damage of plants, and early yield prediction, and growth prediction. In any technique, for example, the flowering date of a plant is set for one week for each greenhouse. Staggering every month, what month and day are determined, and the plants are flowered in order in accordance with the day of the month and day determined for each week, and the flowering dates of plants in multiple greenhouses are determined. There has been a problem that it is impossible to grow a plant to a desired growth state within several days before and after the desired date, such as determining the day of the month and allowing the flower to bloom at the same time around the determined day.

The technique of Non-Patent Document 1 is a technique for harvesting cut flowers with cocoons and growing the cocoons, but is not a technique for growing plants. That is, the growth process of a plant varies depending on the type of the plant, but there are growth stages at various stages, for example, start of seedling, extraction of moss, flowering, and flowering, but the plant is desired within several days before and after the desired date. There has been a problem that it cannot be grown to the desired growth state of the growing stage.

  The present invention was devised in view of these problems, and is a growth stage of a herbaceous plant, for example, each growth stage such as start of seedling, extraction, ripening, and flowering, or a growth stage over the entire period from the start of seedling to flowering. Therefore, it is an object of the present invention to provide a growth control method, a growth control system, a program, and a storage medium for a herbaceous plant that can reach the desired growth state within several days before and after the desired date.

  The growth stage in the present invention is defined as a growth stage between the changing points where herbaceous plants change, for example, germination, moss shoots, germination, flowering, etc. as the herbaceous plants grow, and the growth stage is a herbaceous plant. It depends on the type. In the case of the eustoma of the herbaceous plant taken up in the present invention, as shown in FIG. 3 (a), from the start of seedling 3 to extraction 4 the growth stage of stage I 7 and from extraction 4 to extraction 5 The growth stage of stage II 8, from stage 5 to flowering 6 corresponds to stage III stage 9 growth, and from stage 3 to flowering start 6 stage 10 of all stages. In addition, the growth stage change date in the present invention corresponds to the seedling start date, the day of seedling starting to grow stems, the date of emergence at which buds start to appear, and the flowering date at which the flowers are harvested. The change date of the present invention is not limited to this.

  For example, in the case of tomato, as shown in FIG. 3 (b), seeding and seedling start time are almost the same and the fruit can be harvested. The growth stage of stage I 7, from stage 32 to flowering 33 corresponds to stage 8 of stage II, and from stage 33 to fruit harvest 34 corresponds to stage 9 of stage III.

  The effective lower limit temperature in the present invention means the upper limit of the temperature at which the herbaceous plant growth is stagnant at each growth stage for each herbaceous plant, and the effective integrated temperature is for each herbaceous plant for each growth stage. It means a temperature obtained by subtracting the effective lower limit temperature from the temperature of a day that is a constant temperature and exceeds the effective lower limit temperature in each growth stage, and adds all the days of the growth stage. The effective lower limit temperature and the effective integrated temperature are obtained by growing a herbaceous plant in advance from sowing to flowering, and measuring the change date, elapsed days, and temperature in the growth of seedling start, moss culling, flowering, and flowering.

  In the present invention, the daily average temperature means an average value of the temperature changing in one day, and the period average temperature means an average value of daily daily average temperatures in a selected period. As shown in FIG. 5, the daily average temperature varies depending on the day within one period, but the period average temperature (not shown) is one within one period.

  The growth index is a numerical value representing the growth state at the same growth stage. For example, the growth index when the number of days elapsed in the first stage is n days is the effective integrated temperature at the same growth stage. It means a value obtained by dividing a value obtained by subtracting the effective lower limit temperature from the average temperature during the period from the stage start date to the nth and the nth day. The growth index is a numerical value represented by a minimum value of 0 at the beginning of the growth stage and a maximum value of 1 when the growth stage is reached. For example, the current growth state can be expressed as a growth index of 0.8 in the growth stage I. The target growth level can be expressed as a growth index of 0.5 in the growth stage III.

The growth control method of a herbaceous plant according to claim 1 is a growth control method of a herbaceous plant that controls the growth of the herbaceous plant, and is for each growth stage at a target daily average temperature represented by the following formula (1). It is characterized by controlling to a desired growth state in a desired number of days by controlling the temperature.
However,
Ts: Target daily average temperature a: 1 for reaching the desired growth stage in Y days divided by the effective integrated temperature of each growth stage b: Dividing the effective lower limit temperature of each growth stage by the effective integrated temperature for the subtraction symbol A desired growth index (Z− (a × Tm + b) × n) expressed as a growth level with a value of more than 0 and 1 or less, with 0 at the start of each growth stage and 1 at the arrival of each growth stage, (It must be any value from 0 to 1)
n: Number of days of growth up to the day before the control start date in each growth stage Tm: Average temperature during the period up to n days in each growth stage. However, 0 is substituted when n = 0.
Y: Desired number of days of the growth period of each growth stage

The growth control method of the herbaceous plant according to claim 2 is the method according to claim 1, wherein the effective integrated temperature and the effective lower limit temperature for each growth stage of the herbaceous plant, daily temperature information, and between the growth stages including the seedling start date Growth information storage step for acquiring and storing change date information, control start date information, desired growth index in each growth stage from the control start date to the growth stage corresponding to the desired growth state, and each growth stage The desired information acquisition step for acquiring the desired growth period, the information stored in the growth information storage step, and the information acquired in the desired information acquisition step, respectively, according to the equation (1) according to claim 1 Calculating the target daily average temperature of the growth stage, and controlling the temperature with the target daily average temperature calculated for the desired growth period in the order of the growth stage. Characterized in that it comprises a temperature control step.

The growth control method for herbaceous plants according to claim 3 is characterized in that, in claim 1 or 2, the herbaceous plants are quantitative short-day plants, quantitative long-day plants, or neutral plants.

The growth control system for herbaceous plants according to claim 4 is a growth control system for herbaceous plants that controls the growth of herbaceous plants, wherein the effective integrated temperature and effective lower limit temperature for each growth stage of the herbaceous plant, daily temperature information And storage means for acquiring and storing the change date information between the growth stages including the seedling start date, and the control start date information, in each growth stage from the control start date to the growth stage corresponding to the desired growth state The formula (1) according to claim 1, based on acquisition means for acquiring a desired growth index and a desired growth period of each growth stage, information stored in the storage means, and information acquired by the acquisition means. The calculation means for calculating the target daily average temperature of each growth stage according to 1), and the temperature control is performed with the target daily average temperature calculated for the desired growth period in the order of the growth stages. A temperature control means, characterized in that it comprises a.

The herbaceous plant growth control program according to claim 5 causes a computer to execute the herbic plant growth control method according to claim 1 or 2.

The growth control program according to claim 6 is a first growth information storage step for acquiring and storing an effective integrated temperature and an effective lower limit temperature for each growth stage of a herbaceous plant by manual input in a computer, and an air temperature from the start of seedling raising. A second growth information storage step for acquiring and storing daily temperature information from the measuring means and change date information between the growth stages including the seedling start date by manual input, control start date information, desired from the control start date A desired information acquisition step for manually acquiring a desired growth index in each growth stage and a desired growth period of each growth stage up to the growth stage corresponding to the growth state to be performed, and 1 for the effective integrated temperature of each growth stage The value obtained by dividing the effective lower limit temperature of the growth stage by the effective integrated temperature is calculated as the subtraction symbol, and the seedling start date is calculated. The number of days of growth up to the day before the control start date in each growth stage is calculated from each change date information and the control start date information, and the average temperature during the period until the day before the control start date in each growth stage is calculated. The calculation step of calculating the target daily average temperature of each growth stage according to the formula (1) described above, and the temperature control of the temperature adjusting means so that the desired daily growth temperature is calculated as the target daily average temperature in the order of the growth stage And an air temperature control step.

A computer-readable storage medium according to a seventh aspect stores the program according to the fifth or sixth aspect.

  The present invention is a growth stage of herbaceous plants, from the start of raising seedlings to the extraction of the moss, from the extraction of the moss, to flowering from the beginning of the flowering, or from the start of the seedling to flowering, several days before and after desired It is possible to grow to a desired growth level within a remarkable effect. For example, in a few days before and after the desired date, the growth stage of the III stage of flowering from the desired flowering stage is selected within a few days before and after the desired growth stage. The desired growth index of 0.8 can be grown.

When temperature control is performed at different target daily average temperatures for each of the three growth stages, from the start of seedling to the first stage of brewing, the second stage of brewing to the second stage of blooming, and the third stage of the first stage of flowering to flowering. Since the combined control is possible, the growth of the herbaceous plant can be brought to a desired growth state within several days of the desired day. Moreover, when temperature control is performed with the same target daily average temperature throughout the flowering period from the start of raising seedlings, the desired growth state can be achieved within the vicinity of the desired day for the growth of the herbaceous plant.

Here, within a few days in the present invention means within 2-3 days, and within near means within 5-6 days.

It is explanatory drawing of the growth control system of the herbaceous plant of this invention. It is a flowchart of the growth control method of the herbaceous plant of this invention. It is explanatory drawing of a growth stage, (a) shows the case of Eustoma, (b) is a figure which shows the case of tomato. It is the external appearance photograph of the small greenhouse of the growth experiment of a herbaceous plant. It is explanatory drawing of a daily average temperature, an effective lower limit temperature, and a period. It is a figure which shows the relationship between the integrated temperature and period when a fixed planting date is summer, winter, and the rainy season, and a growth stage is the 1st period. It is a figure which shows the relationship between the integrated temperature and period when a fixed planting date is summer, winter, and the rainy season and the growth stage is the 2nd stage. It is a figure which shows the relationship between the integrated temperature and period when a fixed planting date is summer, winter, and the rainy season and the growth stage is the III period. It is a figure which shows the relationship between the integrated temperature and period when a fixed planting date is summer, winter, and the rainy season, and a growth stage is all periods.

  The herbaceous plants suitable for the present invention are suitable for items that are strongly influenced by temperature during growth, and include quantitative short-day plants, quantitative long-day plants, and neutral plants. For example, Eustoma grandiflorum, tomatoes, cucumbers, cyclamen, roses, perennial gypsophila, staticis sinuata and the like are applicable.

  A small greenhouse 25 of the herbaceous plant 20 as shown in FIG. Equipped with a dedicated small greenhouse 25 (trade name: natural light type phytotron), it was cultivated under the four temperature conditions for Reina White, a variety of Eustoma grandiflorum. Cultivation temperature is light / dark period high temperature environment of 32 ° C / 26 ° C, medium temperature environment of 28 ° C / 22 ° C, low temperature environment of 24 ° C / 18 ° C, natural temperature in summer In winter, there were four types of environments 54, which were heated to 15 ° C. The seedling temperature was constant at 27.5 ° C. in all environments, the time ratio of the light / dark period of the seedling period was 20 hours / 4 hours, and the day length after planting was 20 hours. The planting dates were carried out in the summer, winter and rainy season.

  In addition, as shown in FIG. 3, the growth stage is as follows: first stage 7 from herbaceous plant seedling start 3 to extraction 4, second stage 8 from extraction 4 to extraction 5, extraction 5 to flowering 6 It was divided into stage III up to 9 and all stages 10 from seedling start 3 to flowering 6.

  The planting date is set in the summer, winter, and rainy seasons, the temperature is measured, and the change dates such as the seedling start date, brewing date, flowering date, and flowering date are obtained. Air temperature and period average temperature were calculated. The results are shown in Table 1 when the planting date is summer, Table 2 when the planting date is winter, and Table 3 when the planting date is the rainy season.

When the relationship between the integrated temperature (period average temperature × period) and the period in the period I shown in Tables 1 to 3 is graphed in FIG. 6, the relationship between the integrated temperature A and the period B is expressed by the following approximate expression (primary equation): ) Holds.
Integrated temperature A = 22.423B + 200.57

When the relationship between the integrated temperature and the period in the II period shown in Tables 1 to 3 is graphed in FIG. 7, the following approximate expression (primary equation) is established for the relationship between the integrated temperature A and the period B.
Integrated temperature A = 13.933B + 360.12

When the relationship between the integrated temperature and the period in the III period shown in Tables 1 to 3 is graphed in FIG. 8, the following approximate expression (primary equation) holds for the relationship between the integrated temperature A and the period B.
Integrated temperature A = 11.619B + 437.05

When the relationship between the integrated temperature and the period in all periods shown in Tables 1 to 3 is graphed in FIG. 9, the following approximate expression (primary equation) holds for the relationship between the integrated temperature A and the period B.
Integrated temperature A = 12.43B + 1498

  Further, from FIG. 5, the relationship between the daily average temperature, the period, the effective lower limit temperature 40, the integrated temperature, and the effective integrated temperature is that the average of the average daily temperature during the period is the average period temperature. The effective integrated temperature is a value obtained by subtracting a value obtained by multiplying the effective lower limit temperature 40 by the period from the integrated temperature. From this, it is derived that the integrated temperature is obtained by adding a value obtained by multiplying the effective lower limit temperature 40 by the period to the effective integrated temperature. From this, it is suggested that the effective lower limit temperature 40 is a constant value by the coefficient of the period, and the effective integrated temperature is also a constant value. 6 to 9, the relationship between the integrated temperature and the period is expressed by a linear equation. Therefore, the value at the intersection with the vertical axis corresponds to the effective integrated temperature, and the coefficient when the period is a variable. Corresponds to the effective lower limit temperature 40. The results are shown in Table 4.

From Table 4, the effective integrated temperature and the effective lower limit temperature are constant numbers.

  Further, since the linear equation is established for the integrated temperature and period for each growth stage, the inventor has conceived growth control for realizing a desired growth level on a desired day.

  First, in order to control the growth level, it is necessary to quantify the growth level. For each growth stage, the index at the start of growth of the growth stage is set to 0 and the index at the end of growth of the growth stage is set. A growth index of 1 was determined. That is, the growth index in the present invention is as shown in Table 5 showing the relationship between the growth stage and the growth index for each of the I period 7, the II period 8, the III period 9 and the entire period 10, as shown in Table 5. In the growth stage, the start time is 0, the arrival time of the growth stage is 1, and a value between 0 and 1 is expressed by a numerical value with a decimal point such as 0.1 or 0.5.

From Table 5, for example, if the growth level from the beginning to the beginning of flowering is 50% in the second stage of the emergence, the growth index is 0.5. By setting the growth index, the current growth level and the desired growth level on the desired day can be replaced with numerical values.

  Next, the growth index was correlated with the linear equation of the integrated temperature and the period. Therefore, the growth rate per day was defined, and the value obtained by multiplying the growth rate by the number of growing days was defined as the growth index. First, the growth rate per day is obtained by subtracting the effective lower limit temperature from the daily average temperature and dividing it by the effective integrated temperature of the corresponding growth stage. A value obtained by multiplying the daily growth rate by the number of days is defined as a growth index. This is represented by the following formulas (2) and (3).

  Next, the growth index necessary until the next growth stage, that is, the growth index necessary for reaching the desired growth index Z in the same growth stage is expressed by the following formula (4). The Z is an integer greater than 0 to 1 or less or a numerical value after the decimal point.

Next, in the case where the growth stage is the same, in order to realize the desired growth index of the growth stage from the day n after the growth stage start date in the desired number of days Y, when the target daily average temperature is Ts,
The growth index required for realization is obtained by the following formula (5).

Therefore, the following equation (1) can be derived from the equations (4) and (5).
However,
Ts: Target daily average temperature a: 1 for reaching the desired growth stage in Y days divided by the effective integrated temperature of each growth stage b: Dividing the effective lower limit temperature of each growth stage by the effective integrated temperature for the subtraction symbol A desired growth index (Z− (a × Tm + b) × n) expressed as a growth level with a value of more than 0 and 1 or less, with 0 at the start of each growth stage and 1 at the arrival of each growth stage, (It must be any value from 0 to 1)
n: Number of days of growth up to the day before the control start date in each growth stage Tm: Average temperature during the period up to n days in each growth stage. However, 0 is substituted when n = 0.
Y: Desired number of days of the growth period of each growth stage

Therefore, the present invention uses the above-described formula (1) to realize the herbaceous plant herbaceous plant growth control method 2, which realizes the growth state of the desired growth index of the desired growth stage of the herbaceous plant 20 within the desired days. A control system 1, a program, and a storage medium.

  As shown in FIG. 1, the herbaceous plant growth control system 1 according to the present invention includes an information processing unit 22, a storage unit 21, a temperature measuring unit 24, a greenhouse 25, an air temperature control unit 26, a network 23, and a herbaceous plant 20. The information processing means 22 is a computer such as a personal computer, and controls the storage means 21, temperature measuring means 24, and temperature control means 26 via the network 23 and the like. The storage means 21 corresponds to an internal storage device such as a hard disk, an object storage, a cloud storage, a server computer, an optical disk, a magnetic disk such as a hard disk, an external storage device such as a USB flash memory, and a magnetic tape. Also communicates with the information processing means 22.

  The herbaceous plant growth control system 1 of the present invention is a herbic plant growth control system 1 that controls the growth of the herbaceous plant 20, and includes the effective integrated temperature, the effective lower limit temperature, and the daily temperature for each growth stage of the herbaceous plant 20. Information, and storage means for acquiring and storing change date information between growth stages including the seedling start date, control start date information, each growth stage from the control start date to the growth stage corresponding to the desired growth state Based on the acquisition means for acquiring the desired growth index and the desired growth period of each growth stage, the information stored in the storage means and the information acquired by the acquisition means, the paragraph [0050] The calculation means for calculating the target daily average temperature of each growth stage according to the formula (1), and the target daily average temperature calculated for the desired growth period in the order of the growth stage. And a temperature control means for controlling.

  The effective integrated temperature and the effective lower limit temperature for each growth stage of the herbaceous plant 20 are acquired in advance from the start of raising seedlings of the herbaceous plant 20 to be subjected to temperature control, and stored in the storage unit 21. Then, according to the growth of the herbaceous plant 20 subject to temperature control in the greenhouse 25, the daily temperature information measured by the temperature measuring means 24, the number of days elapsed since the start of raising seedlings, and the change date information between the growth stages are acquired. And stored in the storage means 21.

And when the acquisition means acquires the desired growth index in each growth stage and the desired growth period of each growth stage from the current control start date to the growth stage corresponding to the desired growth state, the calculation means The target daily average temperature is calculated according to equation (1). Then, the temperature control means 26 controls the temperature so that the desired growth period is the calculated target daily average temperature in the order of the growth stages.

  Next, the herbaceous plant growth control method 2 is a herbic plant growth control method for controlling the herbaceous plant growth, and is represented by the formula (1) described in paragraph [0050] for each growth stage. By controlling the temperature with the target daily average temperature, the desired growth state is controlled in a desired number of days.

Further, the herbaceous plant growth control method 2 acquires and stores the effective integrated temperature and effective lower limit temperature for each growth stage of the herbaceous plant 20, daily temperature information, and date of change between growth stages including the seedling start date. The growth information storage step 11 to be performed, the control start date information, the desired growth index in each growth stage from the control start date to the growth stage corresponding to the desired growth state, and the desired growth period of each growth stage are acquired. Based on the information stored in the desired information acquisition step 12, the information stored in the growth information storage step 11 and the information acquired in the desired information acquisition step 12, each growth stage is expressed by the equation (1) described in the paragraph [0050]. Calculating step 13 for calculating the target daily average temperature, and the target daily average temperature calculated for the desired growth period in the order of the growth stage Comprising a temperature control step 14 of the control, the.

For example, in the case of Eustoma grandiflorum, the growth stage of the first stage 7 is from the start of the seedling to the extraction of the moss, the growth stage of the second stage 8 from the extraction of the moss to the development of the flower, The growth stage of stage III 9 or the stage of growth from start of seedling to flowering is the growth stage of all stages 10. If the target daily average temperature is calculated and controlled in three stages of Phase I, Phase II, Phase III and Phase III, the desired growth state can be realized within a few days of the desired day. When the target daily average temperature is obtained and the temperature is controlled, a desired growth state can be realized within the vicinity of the desired day.

First, it is a growth information storage step 11. The effective integrated temperature and effective lower limit temperature for each growth stage of herbaceous plants are grown from the relational expression of the integrated temperature and period for each growth stage by growing the same herbaceous plant in advance from the start of seedling to flowering before temperature control. The effective integrated temperature and effective lower limit temperature for each stage are calculated in advance. Then, the effective integrated temperature and the effective lower limit temperature for each growth stage are manually input and stored.

Next, after seeding the seeds of the herbaceous plant and raising seedlings in the greenhouse through a wet low temperature treatment period, the temperature information in the greenhouse is obtained and memorized from the temperature measuring means, and the seedling start date, extraction Each change date is obtained by observation, and the change date information is stored by manual input.

Next, it is the desired information acquisition step 12. The desired level of growth of the herbaceous plant is determined after how many days from the current start date of control. Then, the control start date, the desired growth index in each growth stage (Z in the above formula (1)) from the control start date to the growth stage corresponding to the desired growth state, and the desired growth period of each growth stage Enter manually. For example, if the current control start date is n days in the I period and the desired is to grow in the flowering state in the III period, the remaining desired growth days Y and the growth index Z of the I period 1 is manually input, 1 is input manually for the desired growth period Y and growth index Z in Phase II, and 1 is input for the desired growth index Y and desired growth index Z in Phase III. Here, when the desired growth level in stage III is set to 80%, 0.8 is manually input as the growth index Z. Further, (Z− (a × Tm + b) × n) is required to be in any numerical value within the range of more than 0 to 1 or less.

Next, it is calculation step 13. The target daily average temperature for each future growth stage is determined by the above formula (1). As data to be included in the equation (1), a is calculated for each growth stage, which is a value obtained by dividing 1 by the effective integrated temperature of each growth stage, and the effective lower limit temperature of the growth stage is calculated as the effective integrated temperature as a subtraction symbol. The divided value b is calculated for each growth stage. Then, the number of growth days of the difference from the start date of each growth stage to the day before the control start date in the same growth stage is calculated as n days, and the value obtained by dividing the integrated temperature up to n days in each growth stage by n days is the period average Calculated as temperature.

Then, the target daily average temperature is calculated by the above formula (1) for each growth stage. By calculating the target daily average temperature as the target daily average temperature of the desired growth period in each growth stage in the future, it is possible to determine the desired growth level of the herbaceous plant after how many days from the current control start date. It is an important requirement to be realized.

Next, it is temperature control step 14. In order to control the growth of the herbaceous plants in the greenhouse, the temperature adjustment means 26 uses the target daily average temperature calculated for the desired growth period in the order of the growth stages of stage I, stage II, stage III and stage 9. Control the temperature. As a result, it is possible to realize the desired level of growth of the herbaceous plant after how many days from the current control start date.

The calculated target daily average temperature Ts must be set to a desired growth period so that the lower limit temperature is higher than the effective lower limit temperature and the upper limit temperature is equal to or lower than a temperature at which growth is not suppressed due to high temperature.

Next, the use of the present invention will be described using a model example. For example, the effective lower limit temperature of Stage I 7 from the start of seedling to extraction of the selected herbaceous plant is 20 ° C., the effective integrated temperature is 200 ° C., and the effective lower limit temperature of Stage II 8 from extraction to mashing. Is 15 ° C., the effective integrated temperature is 300 ° C., the effective lower limit temperature of stage III 9 from flowering to flowering is 10 ° C., and the effective integrated temperature is 400 ° C. Counted as the 5th day, the average temperature Tm for the period until the 5th day of the I period was calculated as 25 ° C., and the desired number of growing days was 30 days for the I period 7 and 20 days for the II period 8; When the third stage 9 is manually input as 20th and the desired growth level is manually input as the growth index 0.4 in the third stage 9, the target daily average temperature Ts controlled at each growth stage is as follows: Is calculated. The temperature at which the herbaceous plant does not inhibit growth due to the high temperature is 32 ° C.

First, the calculation according to the equation (1) is automatically performed for the I period 7. a is calculated to be 0.005, b is calculated to be −0.1, Z is manually input as 1 to grow on the moss that is the arrival point of the growth stage of the I period, and the period average temperature Tm is It is calculated as 25 ° C., n is calculated as 5 days, Y is manually input as 30 days, and the target daily average temperature Ts is calculated as 26.5 ° C. according to the above equation (1). The temperature is controlled to a daily average temperature of 26.5 ° C.

Next, the calculation according to the formula (1) is automatically performed for the second period 8. a is calculated to be 0.003, b is calculated to be -0.05, Z is manually input as 1 to grow on the sprout that is the arrival point of the growth stage of stage II, and n is 0 day Calculated, Y is entered as 20 days, and the target daily average temperature Ts is calculated as 33.3 ° C. according to the above formula (1). Therefore, in the second stage, the target daily average temperature is 33.3 ° C. for 20 days. Control the temperature.

Next, the calculation according to the equation (1) is automatically performed for the third stage 9. a is calculated to be 0.0025, b is calculated to be -0.025, Z is manually input 0.4 of the desired growth index, n is calculated to be 0 days, Y is input to 20 days, Since the target daily average temperature Ts is calculated as 30 ° C. according to the formula (1), in the third period 9, the temperature is controlled at the target daily average temperature of 30 ° C. for 20 days. Since the temperature of 30 ° C. is 32 ° C. or less at which the growth is suppressed, it is not necessary to correct the growth days. Thereby, it is possible to control the selected herbaceous plants to grow to the state of the target growth index of the desired target growth stage within several days of the desired date.

Moreover, the herbaceous plant growth control method 2 can also make one growth stage from the seedling start to flowering of a herbaceous plant. This case is suitable for controlling the desired growth within the vicinity of the desired day.

The herbaceous plant growth control program can cause a computer to execute the herbaceous plant growth control method 2 of paragraph [0056] or [0057].

Further, the growth control program includes a first growth information storage step for acquiring and storing an effective integrated temperature and an effective lower limit temperature for each growth stage of the herbaceous plant by manual input in a computer, and a temperature measuring means from the start of seedling raising The second growth information storage step for acquiring and storing the daily temperature information and the change date information between the growth stages including the seedling start date by manual input, the control start date information, and the desired growth state from the control start date The desired information acquisition step 12 for acquiring the desired growth index in each growth stage and the desired growth period of each growth stage by manual input up to the growth stage corresponding to 1 and 1 divided by the effective integrated temperature of each growth stage The value obtained by dividing the effective lower limit temperature of the growth stage by the effective integrated temperature is calculated as the subtraction symbol, and the seedling start date is calculated. From the change date information and the control start date information, the number of days of growth up to the day before the control start date in each growth stage is calculated, the average temperature during the period until the day before the control start date in each growth stage is calculated, and the paragraph [0050 The calculation step 13 for calculating the target daily average temperature of each growth stage according to the equation (1) described above], and the temperature adjustment means of the temperature adjustment means so as to obtain the target daily average temperature calculated in the order of the growth stage. An air temperature control step 14 for controlling the air temperature is executed.

The computer-readable storage medium stores the program.

Examples of the present invention will be described below, but the present invention is not limited to the following examples.

The device shown in FIG. 1 and FIG. 4 was used for Reina White, which is a variety of Eustoma grandiflorum. The effective lower limit temperature and the effective integrated temperature are the same as described in Table 6 above.
On November 2, 2017, which is the start date of Phase II, the desired date was 110 days later, and the desired growth level was the end level of Phase II (growth index 1). In stage II, a was calculated to be 0.0028, and b was calculated to be -0.0386. Moreover, since the present day is the start date of the II period, the number of growing days n in the II period is counted as 0 days, and the data of the period average temperature Tm is counted as none. The data was calculated, and the target daily average temperature was calculated to be 17.2 ° C. by the following formula (6).
Ts = 1 / 0.0028 ((1- (0.0028 × 0−0.0386) × 0) /110+0.0386) (6)
Therefore, the temperature was controlled so that the target daily average temperature for 110 days was 17.2 ° C. As a result, Phase II ended on the 111th day of February 21, 2018. Therefore, the desired growth level could be achieved within several days of the desired day.

DESCRIPTION OF SYMBOLS 1 Growth control system 2 Growth control method 3 Start of raising seedling 4 Extraction of moss 5 Flowering 6 Flowering 7 Stage I 8 Stage II 9 Stage III 10 Whole period 11 Growth information storage step 12 Desired information acquisition step 13 Calculation step 14 Temperature control Step 20 Herbaceous plants 21 Storage means 22 Control means 23 Network 24 Temperature measurement means 25 Greenhouse 26 Temperature adjustment means 31 Sowing / nurturing start or sprouts generation 32 Germination 33 Flowering 34 Fruit harvest 40 Effective lower limit temperature 51 High temperature environment 52 Medium temperature environment 53 Low temperature Environment 54 Naruyuki environment

Claims (7)

A herbaceous plant growth control method for controlling the growth of herbaceous plants,
A growth control method for a herbaceous plant characterized by controlling the temperature to a desired growth state for a desired number of days by controlling the temperature at a target daily average temperature represented by the following formula (1) for each growth stage.
However,
Ts: Target daily average temperature a: 1 for reaching the desired growth stage in Y days divided by the effective integrated temperature of each growth stage b: Dividing the effective lower limit temperature of each growth stage by the effective integrated temperature for the subtraction symbol A desired growth index (Z− (a × Tm + b) × n) expressed as a growth level with a value of more than 0 and 1 or less, with 0 at the start of each growth stage and 1 at the arrival of each growth stage, (It must be any value from 0 to 1)
n: Number of days of growth up to the day before the control start date in each growth stage Tm: Average temperature during the period up to n days in each growth stage. However, 0 is substituted when n = 0.
Y: Desired number of days of the growth period of each growth stage A growth information storage step for acquiring and storing effective integrated temperature and effective lower limit temperature for each growth stage of herbaceous plants, daily temperature information, and change date information between growth stages including the seedling start date,
Desired information acquisition step for acquiring control growth date information, a desired growth index in each growth stage from the control start date to a growth stage corresponding to the desired growth state, and a desired growth period of each growth stage;
A calculation step of calculating a target daily average temperature of each growth stage according to the equation (1) according to claim 1 based on the information stored in the growth information storage step and the information acquired in the desired information acquisition step; ,
The herbaceous plant growth control method according to claim 1, further comprising: an air temperature control step of performing air temperature control with the target daily average air temperature in which the desired growth period is calculated in the order of the growth stage. The herbaceous plant growth control method according to claim 1 or 2, wherein the herbaceous plant is a quantitative short-day plant, a quantitative long-day plant, or a neutral plant. A herbaceous plant growth control system that controls the growth of herbaceous plants,
A storage means for acquiring and storing effective integrated temperature and effective lower limit temperature for each growth stage of herbaceous plants, daily temperature information, and change date information between growth stages including a seedling start date,
Acquisition means for acquiring control start date information, a desired growth index in each growth stage from the control start date to the growth stage corresponding to the desired growth state, and a desired growth period of each growth stage;
Based on the information stored in the storage means and the information acquired by the acquisition means, calculation means for calculating a target daily average temperature of each growth stage by the equation (1) according to claim 1,
A herbaceous plant growth control system, comprising: temperature control means for controlling the air temperature at the target daily average air temperature in which the desired growth period is calculated in the order of the growth stage. A herbaceous plant growth control program that causes a computer to execute the herbic plant growth control method according to claim 1 or 2. On the computer,
A first growth information storage step for acquiring and storing the effective integrated temperature and the effective lower limit temperature for each growth stage of the herbaceous plant by manual input;
A second growth information storage step for acquiring and storing daily temperature information from the temperature measurement means from the start of raising seedlings, and change date information between growth stages including the seedling start date by manual input;
Desired information acquisition step for manually acquiring control start date information, a desired growth index in each growth stage and a desired growth period of each growth stage from the control start date to the growth stage corresponding to the desired growth state When,
The value obtained by dividing 1 by the effective integrated temperature of each growth stage is calculated, and the value obtained by dividing the effective lower limit temperature of the growth stage by the effective integrated temperature is calculated as the subtraction symbol. The formula (1) according to claim 1, wherein the number of growth days from the start date information to the day before the control start date in each growth stage is calculated, and the period average temperature until the day before the control start date in each growth stage is calculated. ) To calculate a target daily average temperature for each growth stage,
A growth control program for executing an air temperature control step for controlling the air temperature of the air temperature adjusting means so that the desired daily average air temperature is calculated in the order of the growth stage.   A computer-readable storage medium storing the program according to claim 5 or 6.