JP5152869B2 - Strawberry seedling training method and strawberry cultivation method - Google Patents

Description

  The present invention relates to a strawberry seedling cultivation method and a strawberry cultivation method, in particular, using a very small amount of soil, a strawberry seedling cultivation method for restricting the root area, and using a root-limited strawberry seedling, The present invention relates to a strawberry cultivation method that can improve the yield per unit area.

  High-growth cultivation where the cultivation tank is separated from the ground is one of the existing strawberry cultivation methods, and it is possible to save labor and light labor compared to soil cultivation on the ground. This is an indispensable technique for maintaining production by compensating for the aging and decline of farmers. However, the introduction area is about 15% nationwide (2003), and the spread has not progressed. This is mainly due to the low profitability relative to the introduction cost. Therefore, there is a need for the development of a new tall cultivation system that can reduce the introduction cost and greatly improve the yield and ensure sufficient profitability.

  Currently, various types of tall cultivation systems have been devised by private and public testing and research institutions. In any case, the seedlings cultivated using a polypot or the like are planted in an elevated cultivation device and cultivated. Basically, the cultivation form follows the ground cultivation. A typical elevated cultivation system forms a frame with metal pipes and the like, and a cultivation tank (isolation bed) made of plastic or a water-permeable sheet is attached to the upper part of the frame to constitute a straw.

  The amount of soil to be used is about 3 to 5 liters per strain. Solid fertilizer is used for topdressing, and a simple irrigation tube is used for irrigation. There is also a method of applying liquid fertilizer to serve as irrigation. Since cultivation soil is used repeatedly, it is necessary to take measures to control diseases such as solar heat disinfection after the cultivation. Usually, seedlings are planted in two strips at a glance, with a spacing of about 25 cm and a spacing of 20-25 cm. Basic tasks such as pest control, temperature control, lighting, and harvesting are almost the same as those for ground cultivation. Seedlings are planted at the beginning of September and the beginning of harvest is at the end of November. The average annual yield is about 1 ton, and it is harvested until the end of May and the total yield is about 3 to 4 ton. This yield level is equivalent to or lower than average ground cultivation.

  As a conventional prior art document, a method for growing a plant such as strawberry is a plant growing method by hydroponics in which a nutrient solution in a feed pipe is supplied to a medium in which a plant is planted, and the plant is grown. A liquid pipe is disposed above the culture medium, and a water-absorbing material is disposed so that the upper end side is immersed in the nutrient solution in the liquid supply pipe and the lower end side is hung downward from the upper part of the liquid supply pipe, The nutrient solution is dropped onto the medium from the lower end of the water-absorbing material, and the plant is hydroponically cultivated (see, for example, Patent Document 1).

  Moreover, in the said patent document 1, it is the plant growing method by the hydroponics which supplies the nutrient solution in a supply pipe to the culture medium which planted the plant, and grows a plant, Comprising: The said culture medium is 1 of the said plant. Each strain is 200 to 500 ml, and the unit of a plurality of plant strains is defined as one unit, and the culture medium for each unit is divided and grown in a growth pot formed by a root-proof sheet.

JP-A-9-107827

  The conventional high-pitch cultivation method described above is basically a diversion of individual ground cultivation techniques, and labor and light labor have been achieved to some extent, but in terms of labor and light labor and profitability. There are many problems to be improved. The problems are pointed out below.

  Problems relating to raising seedlings include, for example, an strawberry seedling method, an insertion seedling method in which a child stock is separated from a runner and inserted into a pot, and a receiving pot method in which a child stock grown on the runner is received in a pot. The receiving pot method is often used because of its good rooting ability, but it takes time to manage because it does not separate the seedlings from the parent strain until they are settled.

  Because the seedlings use polypots that are not permeable, breathable, or permeable, the roots grow along the inner wall of the pot, causing root aging and necrosis. Cause a delay in the survival of Moreover, since solid fertilizer is used for raising seedlings, it is difficult to quickly adjust the fertilization effect according to the growth stage. Reusing a used polypot requires time and effort such as cleaning and sterilization. In addition, disposal costs are also required.

  In addition, although there are few problems with fixed planting and subsequent cultivation, cultivation requires a large amount of soil, and for continued use, it takes time to replenish the soil and disinfect the soil. And cost. The planting of seedlings takes about 80 hours at 7000 plants per 10a, accounting for about 4% of the total working hours. Furthermore, since the buffer capacity of cultivated soil is smaller than that of ground cultivation, it is difficult to properly manage the nutrient water and culture medium temperature during the cultivation period, and it is difficult to increase the yield higher than the ground management.

  In the plant growing method described in Patent Document 1, the liquid supply pipe is disposed above the culture medium, and the upper end side is immersed in the nutrient solution in the liquid supply pipe, and the lower end side is hung downward from the upper part of the liquid supply pipe. Since the water-absorbing material is disposed and the nutrient solution is dropped onto the medium from the lower end of the water-absorbing material, there is a problem that the configuration becomes complicated. In addition, considering the unit of multiple plant strains as one unit, the culture medium for each unit is divided and grown in a growth pot formed by a root-proof sheet, and moisture stress in a water-deficient state is applied to reduce the growth cost. Therefore, there is a risk that the management becomes complicated.

  The present invention has been made in view of such problems, and the object of the present invention is that it can efficiently raise seedlings using a very small amount of soil, and can achieve large-scale and simultaneous seedlings. The object is to provide a method for cultivating strawberry seedlings that can be managed relatively easily. It is another object of the present invention to provide a strawberry cultivation method that uses the strawberry seedling cultivated by the strawberry cultivation method and can obtain a high yield with a small amount of soil.

In order to achieve the above object, the method for cultivating strawberries according to the present invention includes a biodegradable, root-permeable, and water-permeable nonwoven fabric containing 0.5 liter or less of soil per strawberry seedling, and a root zone. A restricted body is formed, and a strawberry seedling is inserted into the culture soil and planted with the seedling. Immediately after being planted with the inserted seedling, the seedling is shielded from light by shading for about 80% for a predetermined period, and from above the strawberry seedling through the liquid supply means. The fountain is sprayed with water for several minutes at intervals of 1 hour, and irrigated with the above-mentioned liquid supply means, or liquid fertilizer adjusted for dilution at the same time with a small amount of frequent fertilization to promote the root system development of strawberry seedlings and raise them. It is said. A non-woven bag is suitable as the root zone restrictor. The root zone restriction body is set to a size that does not suppress the formation of highly active roots when raising strawberry seedlings, so as to accommodate a small amount of soil compared to the amount of soil during conventional seedling raising It is set small.

  In the method for cultivating a strawberry seedling of the present invention configured as described above, the strawberry seedling is planted in a culture medium housed in a non-woven bag having biodegradability, root permeability, and water permeability, and the strawberry root is rooted by the bag. The fertilizer is fertilized at the same time as irrigation and extends to the outside through the bag. Although the tip of the root that goes out of the bag is dried and withered, the root length density of the strawberry seedling is greatly improved by promoting the formation of new roots in the bag. In this way, even if the amount of soil contained in the bag is extremely small, the formation of absorption roots of strawberry seedlings is sufficiently achieved, and the growth of seedlings is enhanced so that high yield after planting is possible Become. Moreover, it is possible to grow efficiently with a small amount of cultivated soil, and it is possible to reduce the cost of raising seedlings and reduce labor by reducing the weight.

Furthermore, the training method of the strawberry seedlings according to the present invention, the strawberry seedlings, a predetermined time period immediately after planted cuttings seedlings, is shielded in the dark to about 80% from the top of the strawberry seedlings via the liquid supply means In order to nurture seedlings by irrigating with water for several minutes at intervals of 1 hour during the day, irrigation using the above-mentioned liquid supply means, or liquid fertilizer adjusted for dilution, and simultaneously fertilizing a small amount frequently to promote root system development of strawberry seedlings . Strawberry seedlings are shaded and watered immediately after planting, and can acclimatize to the seedling environment to ensure rooting.

Furthermore, as a preferable specific aspect, the fertilization is performed for a predetermined period, and thereafter only watering is performed, and the medium temperature in the high temperature period is maintained at about 30 ° C. to reduce the body nitrogen concentration . By applying fertilization for a predetermined period and then using only irrigation, the nitrogen concentration in the strawberry seedling can be quickly reduced. Moreover, when the water which has been irrigated is vaporized from the surface of the non-woven root zone restrictor, it can take away latent heat of vaporization and suppress the temperature rise of the medium.

Further, preferably, before Symbol nonwoven of root zone restrictor, it is preferable to instill plurality of strawberry seedlings in a row. By limiting the amount of soil to be cultivated, the root area of strawberry seedlings can be restricted and a highly active root system can be formed, and the efficiency of raising seedlings can be increased by planting multiple strawberry seedlings in a row on the root area restriction body. It can be set as a mode suitable for simultaneous liquid supply and crown temperature control in tall cultivation.

Furthermore, the cultivation method of the strawberry which concerns on this invention accommodates culture soil in the nonwoven fabric which has biodegradability, root permeability, and water permeability, forms a root area | region restriction body, implants a strawberry seedling in this culture soil, A liquid supply means Non-biodegradable nonwoven sheet having root permeability and water permeability, which is a strawberry cultivation method using strawberry seedlings cultivated by irrigation using irrigation or strawberry seedling cultivation methods A root-restricted cultivation tank is formed by putting cultivated soil on top, and the root-restricted body in which the strawberry seedling is planted is placed on the cultivated soil and planted, and fertilizer is applied simultaneously with irrigation through a liquid supply means. It is characterized by doing.

  In the strawberry cultivation method configured in this way, the strawberry seedling is limited in root area at the seedling stage, and a sufficient root system is formed.When the strawberry seedling is placed on the cultivation tank containing the cultivated soil, the root is transparent. The roots that grow out of the bag they have and grow in the culture medium of the cultivation tank and grow on the same principle as the seedling stage are also restricted in root area, forming a larger root system with high activity. By applying fertilization simultaneously with irrigation, the strawberry seedling can grow sufficiently even with a medium amount of 1 liter or less per strain, and a large amount of strawberry fruit can be harvested.

  As a preferred embodiment of the strawberry cultivation method, the non-woven bag is placed on the cultivation tank and fixed with a fixture such as bamboo skewers. According to this configuration, the strawberry seedling can be easily planted, and can be completed in a short time, so that light labor can be achieved and the cost can be reduced.

Furthermore, as another aspect of the method for cultivating strawberries according to the present invention, on the non-woven sheet having the root permeability and water permeability, the cultivation soil is restricted to a specific amount so that the root region can be restricted. A cultivation tank is formed, and the strawberry seedling cultivated with the cultivation medium in the nonwoven fabric having biodegradability, root permeability, and water permeability is placed on the cultivation medium of the cultivation tank in a state with the nonwoven fabric, In the cultivation soil of the cultivation tank, the root of the strawberry is allowed to grow and the roots exposed to the outside of the nonwoven fabric of the cultivation tank are naturally killed to limit the root area, so that a large number of nonwoven fabrics in the cultivation tank It is characterized by growing and cultivating new fine roots. Preferably, the strawberry seedling is stored in a non-woven fabric having biodegradability, root permeability, and water permeability with a limited amount of soil so that root area restriction is possible, and the strawberry seedling is implanted in the soil. A method for growing strawberry seedlings, wherein the roots of the strawberry seedling are grown and the roots exposed to the outside of the nonwoven fabric are naturally killed to limit the root area, thereby growing a number of new fine roots in the nonwoven fabric. It is the said strawberry seedling trained. This strawberry cultivation method can also achieve the same effects as the strawberry cultivation method.

  In the strawberry seedling cultivation method and the strawberry cultivation method of the present invention, the strawberry seedling can be efficiently cultivated by limiting the root area, and the yield is increased by root area limited cultivation with a very small amount of soil. be able to. In other words, labor, light labor, and cost saving can be achieved in operations such as seedling raising, planting, and fertilizer management. In addition, by performing high density planting cultivation, the annual yield per unit area and the total yield increase 2-3 times, and strawberry cultivation with high profitability can be performed. Further, since cultivation in the high temperature period has a great effect of suppressing the increase in the medium temperature, summer strawberries can be cultivated in a relatively low altitude region by combining with light shielding and crown temperature control.

  Moreover, in the cultivation method of the strawberry seedling of this invention, and the cultivation method of a strawberry, the cultivation soil used for the raising seedling and cultivation is made into a disposable with a root zone restriction body. As a result, it is possible to use the elevated cultivation facility from raising seedlings to cultivation, and the facility close to the anniversary can be used. Since the root zone restrictor used in the strawberry seedling cultivation method and strawberry cultivation method of the present invention has biodegradability, it can be embedded together with the soil after harvesting.

The perspective view which shows the strawberry seedling and bag of one Embodiment of the cultivation method of the strawberry seedling which concerns on this invention. The principal part perspective view which shows the irrigation tube which arranges the strawberry seedling and bag of FIG. 1 and performs irrigation and fertilization. (A) is a front view schematically showing the state of roots of strawberry seedlings grown by the method for training strawberry seedlings of this embodiment, and (b) is a schematic view of the state of roots of strawberry seedlings grown by the conventional seedling raising method. FIG. The principal part sectional drawing which shows the cultivation method of the strawberry which concerns on this invention. The perspective view which shows the principal part of FIG. The graph which shows the annual yield by the varieties harvested with the cultivation method of the strawberry of this invention. The graph which shows the total yield by the varieties harvested with the cultivation method of the strawberry of this invention.

  Hereinafter, an embodiment of a strawberry seedling cultivation method and a strawberry cultivation method according to the present invention will be described in detail with reference to the drawings. FIG. 1 is a perspective view illustrating a main part of the method for cultivating a strawberry seedling according to the present embodiment, and FIG. 2 is a perspective view of a state in which the strawberry seedling of FIG. It is.

  First, the cultivation of strawberry seedlings will be described in detail with reference to FIGS. The cultivation method of the strawberry seedling of this Embodiment uses the strawberry seedling 1 made from a completely biodegradable non-woven fabric, and a bag (root restricted body) 2 having root permeability and water permeability. Fully biodegradable means a material that is decomposed after a predetermined time in contact with soil, water, etc., and returns to natural soil. The bag 2 used in the present embodiment is one that is completely biodegradable within about 45 days. Permeability means that the roots of the strawberry seedlings planted in the bag 2 can grow and extend through the nonwoven fabric constituting the bag 2 to the outside.

  This bag 2 is formed into a slender bag shape by sewing non-woven fabric, and its capacity is 1 liter or less per strain, for example, 0.4 liter per strawberry seedling. The root region restricting body 4 is formed by filling the bag 2 in advance with soil 3 having good water permeability and air permeability. A plurality of child stocks (strawberry seedlings) 1 separated from strawberry runners are inserted into the bag 2 filled with the soil 3 and planted. If the bag 2 is marked in advance at a predetermined interval, the strawberry seedling 1 can be easily inserted into the bag 2. A cut is made in advance at the marked position to expose the soil 3 and strawberry seedlings are inserted into this soil. By this method, a large amount of strawberry seedlings 1 can be grown simultaneously.

  In the present embodiment, the root zone restriction body 4 is obtained by accommodating 1.6 liters of soil 3 in a non-woven bag 2 having a length L of about 40 cm, a width W of about 12 cm, and a height H of about 5 to 6 cm. Then, four strawberry seedlings 1 are planted in this bag in a row so that the interval P is about 10 cm. As a result, the amount of soil per share is about 0.4 liters. The shape of the bag 2 is preferably a flat shape having a width of about 10 cm in consideration of the fixed planting of strawberry seedlings after raising seedlings. The interval between the strains is preferably about 10 to 15 cm. The interval between the strains can be 10 to 20 cm depending on the planting density. Also, a non-woven pot can be used instead of the non-woven bag 2.

  Strawberry seedling 1 is planted by separating the child stock grown by the runner from the parent strain and inserting it into the soil 3 of the bag 2. After inserting seedlings 1 and 1 into the bag 2 with a predetermined interval, for example, a distance of about 10 cm, and placing the seedlings in a rain-proof house, it is placed in a rain-proof house with light-shielding materials such as chilled chilled light, and simplified. Using a sprinkling tube 3 and a timer or the like, the leaf watering is performed for about 10 days at intervals of 1 hour during the day. This promotes seedling development regardless of the variety. In addition, it can also insert in the bag 2 or a pot, etc. in the state which left the runner, and can also isolate | separate after alive. In this case, no special shading process is required.

  Thereafter, the bags 2 in which the strawberry seedlings 1 are planted are arranged along the longitudinal direction thereof, and are acclimated to a seedling environment for 3 to 4 days by using a cold chill or the like and reducing the light shielding intensity to about 60%. At the same time, a drip irrigation tube 5 as a liquid supply means is installed along the stock of the strawberry seedlings 1, 1,. The drip watering tube 5 preferably has a drip hole interval of 10 cm or less. After being placed along the strawberry seedling, bamboo skewers 6, 6 ... are inserted and fixed in the bag. Although not shown in the drawing, this drip irrigation tube 5 is connected to a water supply tank or a liquid fertilizer tank and is supplied with a pump or the like. Irrigation simultaneous fertilization is performed by the drip irrigation tube 5 using liquid fertilizer with adjusted electrical conductivity (EC). It is assumed that seedlings will be used in rain-proof houses to prevent disease.

  The liquid supply for simultaneous fertilization is performed using the drip irrigation tube 5, and the daily liquid supply amount is about 300 ml per strain, and is distributed frequently during the day using a timer or the like. Keep shading for 3-4 days after the start of liquid fertilizer application. Thereby, good seedlings can be trained by the nitrogen interruption period (early August). Thus, as shown in FIG. 2, the non-woven bags 2 in which a plurality of strawberry seedlings 1, 1... Are planted side by side are arranged in a line along the longitudinal direction, and the drip irrigation tube 5 is used for simultaneous irrigation. By performing fertilization efficiently, batch management of strawberry seedlings can be performed, and mass raising of strawberry seedlings becomes possible.

  The liquid fertilizer application period will be until the beginning of August, after which the body nitrogen concentration will be reduced using only brine. At this time, since the vaporization latent heat is taken away by the evaporation of moisture from the surface of the non-woven bag 2 as the nitrogen concentration decreases, the temperature rise of the culture medium 3 is suppressed. This process will continue until late August. By this treatment, the temperature in the house during the high temperature period is 48 to 50 ° C., but the temperature of the medium in the bag 2 is maintained at about 30 ° C., and the flower buds of the strawberry seedling 1 cultivated by limiting the root region in the bag 2 Differentiation is promoted.

  The strawberry seedling 1 thus grown is nurtured by a root-restricted body 4 in which a small amount of soil 3 is put in a completely biodegradable non-woven bag 2, and the root of the strawberry seedling 1 being nurtured has a root area. Because it is restricted, the roots of strawberry go out of the bag 2 during seedling and the tip is dried and withered. This is the formation of new roots (absorbing roots: white fine roots with a diameter of less than 1 mm) inside the bag 2. Promote and create a highly active root system. That is, the roots exposed to the outside of the non-woven bag 2 are naturally dead and the root area is restricted, and a large number of new fine roots can be grown in the bag 2.

  FIG. 3 (a) schematically shows the state of the roots of the strawberry seedling 1 grown by the strawberry seedling cultivation method of the present embodiment. The root area of the strawberry seedling 1 is limited by the bag 2 and the root system is formed small. (Height h1), a large number of dense new roots are observed. On the other hand, the state of the roots of the strawberry seedling 1A by the seedling raising method using the conventional polypot P shown in FIG. 3B causes the root winding because the container does not have water permeability, air permeability, and root penetration. In addition, the number of roots with reduced activity increases, the root volume as a whole is large (height h2), and the density of the roots is sparse.

  Moreover, in the cultivation method of the strawberry seedling of this embodiment, the weight of the culture medium 3 which raises the strawberry seedling 1 is small, and the weight of the bag 2 which planted four strawberry seedlings is substantially equal to the weight of a 1.6 liter culture medium. Therefore, workability such as transporting seedlings is improved. Here, the state of the roots of the strawberry seedling grown under the condition of limiting the root area according to the present invention will be described in Table 1 below.

In Table 1 above, the root area capacity is the capacity of the soil for planting strawberry seedlings. In this embodiment, a 0.2 liter pot using a biodegradable nonwoven fabric and a 3.0 liter pot in the reference example were used. Root weight is the dry matter weight of roots, in grams per strain. The specific root length indicates the root length per gram of dry matter, and the unit is (m / g). The fine root ratio represents the ratio of root length less than 1 mm in diameter per gram of dry matter, and the unit is (%). The root length density is obtained by dividing the total root length per strain by the pot capacity, and the unit is (cm / cm ³ ). The root surface area is the root surface area per gram of dry matter, and the unit is (m ² / g). The root respiration rate is calculated from the dissolved oxygen consumption of white roots per 1 g of dry matter per hour, and the unit is (O ₂ mg / g · hr). The TR ratio is obtained by dividing the foliage / crown weight per strain by the root weight per strain, and there is no unit.

  Next, a strawberry cultivation method using the strawberry seedling 1 grown as described above will be described in detail below with reference to FIGS. 4 and 5. In FIG. 4, the root of the strawberry seedling shows the state of the root of the strawberry seedling 1 on the left side at the time of planting, and the state of the right strawberry seedling 1 </ b> B extends into the inside of the cultivation tank after the rooting after planting. Is shown. In the cultivation house, a straight pipe or the like is assembled to install the elevated frame 10. A non-biodegradable sheet 12 having water permeability and root permeability is loosened and hung over two parallel pipes 11 and 11 of the installed high platform 10 for cultivation of a very small amount of medium, and hooks 13, 13. The cultivation soil 15 which restrict | limits the expansion | extension area | region of a root is formed by putting culture medium 14 in this permeation | transmission sheet | seat 12 hung over and loosened. The soil to be put into the sheet 12 may be recessed as shown in the figure, put in a flat state, or slightly inflated and raised.

  The amount of soil in the root-zone restricted cultivation tank 15 is 0.5 liters or less per strawberry seedling, and 2 liters or less is placed on the bag 2 in which the four strawberry seedlings 1 are planted. The culture soil 14 is preferably excellent in water permeability and air permeability, and the planting preparation for fixing the bag 2 on the culture soil 14 is performed. The soil 14 in the cultivation tank 15 does not require basic fertilizer. The height of the high gantry 10 is preferably around 1 meter that matches the physique of the worker. In the present embodiment, the cultivation tanks 15 and 15 are provided at intervals of about 30 cm to form two ridges. And since the cultivation amount of the cultivation layer 15 is set to 0.5 liter per strawberry seedling, in this embodiment, the cultivation amount per strawberry seedling is 0.4 liters in the bag 2 and cultivation. 0.5 liters in the layer 15 and 0.9 liters in total.

  The planting work was conducted after confirming the bud differentiation of the strawberry seedlings 1, 1... Grown in the bag 2, bringing the strawberry seedlings together with the bag 2 into the house, and placing the bag 2 on the cultivation tank 15 containing the cultivation soil 14. The bag 2 is fixed on the cultivation tank 15 using bamboo skewers 6, 6. The working time of this planting work is about 80% reduction compared with the practice (7000 shares / 10a) by double dense planting, and the planting work time is greatly reduced. That is, since the lightweight bag 2 planted with a plurality of strawberry seedlings 1, 1... Is used, it can be planted efficiently with light labor. Moreover, a strawberry seedling can be cultivated with a very small amount of soil for one strawberry seedling.

  Then, the irrigation tube 16 using the drip tube is installed on both sides of the strawberry seedlings 1, 1... Planted in the root zone restriction body 4 filled with the culture medium 3 in the bag 2. The irrigation tube 16 is placed on the bag 2 along the longitudinal direction, and the bamboo skewer 6 is inserted into the bag 2 to prevent it from falling off the bag 2 and is fixed so that the bag 2 does not wobble. The irrigation tube 16 is provided with fine holes in accordance with the intervals at which strawberry seedlings are planted, and water supply and fertilization are performed.

  After completion of the planting work, simultaneous fertilization with irrigation using the irrigation tube 16 is started and continued until harvesting is completed. Adjust the dilution so that the concentration of liquid fertilizer is EC 0.4 to 0.6 mS / cm, and supply 200 (low temperature period) to 300 (high temperature period) milliliters per share about 6 times a day. To do. The drainage is collected and discharged outside the house.

  Thus, the root system of the strawberry seedlings 1, 1... Grown by the strawberry seedling cultivation method according to the present invention and grown in the root area restriction body 4 using the biodegradable nonwoven bag 2 with a small capacity is The root area is restricted by the cultivation tank 15 in which the culture soil is put in the sheet 12 having the permeability and water permeability, the roots are formed in an energetic manner, maintaining high vitality, and the amount of the soil per share is extremely small. This low rhizosphere buffering capacity can be compensated for by a small amount of frequent fertilization simultaneous fertilization. That is, the strawberry seedling cultivated by limiting the root region in the soil in the non-woven bag 2 having biodegradability, root permeability, and water permeability is placed on the cultivation layer 15 with the nonwoven fabric attached. The roots that penetrate the bag 2 of strawberry seedlings enter the cultivation soil of the cultivation tank. And the root of the strawberry seedling which entered the cultivation layer grows, and the root exposed from the sheet 12 constituting the cultivation layer 15 is root-limited and naturally dies. As a result, the roots of the strawberry seedling grow a large number of new fine roots in the sheet 12, and a high yield can be obtained with the soil in the specific amount of the sheet limited to a small amount.

  During the winter season, the entire elevated platform is covered with polyfilm, etc., and warm air is drawn inside to warm the ridge. The medium temperature is given priority over the house temperature, and the temperature is controlled at about 14 ° C. Since the amount of the medium is extremely small, it is easy to control the medium temperature in the low temperature period and the high temperature period, and the energy cost of heating can be reduced.

  In the strawberry cultivation method of the present invention, as shown in FIG. 6 and FIG. 7, high annual yield and high total yield increase due to dense planting. FIG. 6 is data obtained by examining the influence of cultivation of a very small amount of medium on the product fruit yield within the year, and shows an example in which the planting density is 14,000 strains per 10 ares. FIG. 7 is data obtained by examining the effect of cultivation of a very small amount of medium on the total yield of commodities. The planting density is 14,000 strains per 10 ares and shows the total amount of harvest from November to July.

  In FIG. 6, for example, “Red Hoppe” has a November yield of about 900 kg per 10 ares, a December yield of about 1900 kg, and “Sahonoka” has a November yield of about 400 kg per 10 ares, December. The yield was about 1600 kg, which was two to three times the annual yield compared to the conventional level of about 1000 kg. Moreover, in FIG. 7, the season yield in the cultivation method of strawberries of the present invention is about 9000 kg per 10 ares for “Red Hoppe”, and about 8400 kg per 10 ares for “Sahonoka”. Compared to 3000 to 4000 kg per are, the total yield was 2 to 3 times.

  Further, along the elevated platform 10, a cultivation tank 15 that restricts the root area is formed, and bags 2, 2... In which a plurality of strawberry seedlings 1, 1. Since it is fixed with bamboo skewers and the cultivation positions of the strains in the ridge are aligned on a straight line, it is easy to match a dedicated tube for crown temperature control to the crown of each strain. For this reason, the labor of tube installation can be reduced and the crown part of a strawberry seedling can be heated and cooled efficiently.

  The bag and the cultivation soil in the cultivation tank are disposable, and after the cultivation has been sufficiently dried together with the plant body, it can be buried in the ground collectively. That is, the bag 2 in which the strawberry seedling 1 is planted is made of a completely biodegradable non-woven fabric, has moisture in contact with the soil, is decomposed after a predetermined time, and returns to the soil. The capacity of the culture medium 3 for growing the seedlings and the amount of the culture medium 14 in the cultivation tank 15 for cultivating the strawberry seedlings after the breeding are extremely small, and no problem arises even if the cultivation medium in the bag 2 or the cultivation tank 15 is discarded.

  Although the embodiments of the present invention have been described in detail above, the present invention is not limited to the above-described embodiments, and various designs can be made without departing from the spirit of the present invention described in the claims. It can be changed. For example, the kind of strawberry can be applied to things other than the above-mentioned “Saga Honoka” and “Red Cheek”.

  Moreover, although the example of the bamboo skewer 6 was shown as a fixing tool which fixes the bag 2 on the cultivation tank 15 with the cultivation method of the strawberry which concerns on this invention, it is not restricted to the product made from bamboo, The tip was sharp. A wooden stick, a metal nail, etc. can also be used. That is, as long as the bag 2 is placed on the cultivation tank 15 and can be easily fixed, any material may be used.

  In addition, the strawberry seedling trained to be placed on the cultivation tank in the strawberry cultivation method according to the present invention is not limited to the strawberry seedling cultivated by the strawberry seedling training method of the present invention, Strawberry seedlings cultivated by any method can be cultivated by the strawberry cultivation method of the present invention.

  As an application example of the present invention, strawberry seedlings can be cultivated and cultivated with a very small amount of soil using this strawberry seedling cultivation method and strawberry cultivation method. Strawberry seedlings can make highly active roots by restricting the root area, so dense harvesting can increase the yield per unit area.

  1: Strawberry seedling (child stock), 2: Bag (biodegradable non-woven fabric), 3: Culture soil (medium), 4: Root zone restriction body, 5: Brine tube (liquid supply means), 6: Bamboo skewer, 10: High Mounting base, 11: pipe, 12: water permeable sheet (non-biodegradable nonwoven fabric), 14: cultivated soil, 15: root zone restricted cultivation tank, 16: brine tube (liquid supply means)

Claims (11)

Biodegradable, root-pervious, and water-permeable non-woven fabric containing 0.5 liter or less of soil per strawberry seedling , forming a root zone restrictor, inserting strawberry seedling into the culture and planting with seedlings , Immediately after planting with cutting seedlings, the plant is shielded from light by about 80% for a predetermined period, and is sprayed with fountain water for several minutes at intervals of 1 hour during the day from above the strawberry seedlings through the liquid supply means. A method for cultivating a strawberry seedling, characterized in that irrigation using a means or liquid fertilizer adjusted for dilution is simultaneously fertilized in small quantities frequently to promote the root system development of the strawberry seedling and to raise the seedling. 2. The method for cultivating a strawberry seedling according to claim 1, wherein the fertilization is performed for a predetermined period, and thereafter only irrigation is performed, the medium temperature in the high temperature period is maintained at about 30 ° C., and the nitrogen concentration in the body is reduced. . The method for cultivating strawberry seedlings according to claim 1 or 2 , wherein a plurality of strawberry seedlings are planted in a row in the non-woven root zone restriction body. Nutrient soil is stored in a non-woven fabric with biodegradability, root permeability, and water permeability to form a root zone restricted body, and strawberry seedlings are planted in the soil, and the seedlings are bred by irrigation or simultaneous irrigation with irrigation using a liquid supply means. A strawberry cultivation method using a strawberry seedling cultivated by a strawberry seedling cultivation method,
A root-restricted cultivation tank is formed by putting culture soil on a non-biodegradable non-biodegradable sheet having permeability and water permeability, and the root-restricted body in which the strawberry seedling is planted is placed on the culture soil. A method for cultivating strawberries characterized in that the plants are planted in a pot and fertilized simultaneously with irrigation through a liquid supply means. The method for cultivating strawberries according to claim 4 , wherein the non-woven root area restricting body is placed on the cultivation tank and fixed with a fixture such as bamboo skewers. The method for cultivating strawberries according to claim 4 or 5, wherein the strawberry seedlings are shielded from light under predetermined conditions for a predetermined period immediately after being planted with cutting seedlings, and are sprayed with water through the liquid supply means. . The fertilization is carried out for a predetermined period, and thereafter only irrigation is used. The method for cultivating strawberries according to any one of claims 4 to 6. The culture medium in the non-woven root area restricted body is set to 0.5 liter or less per strawberry seedling, and promotes root system development of the strawberry seedling in the root area restricted body. The cultivation method of the strawberry in any one of. The strawberry cultivation method according to any one of claims 4 to 8, wherein a plurality of strawberry seedlings are planted in a row in the non-woven fabric root zone restriction body.   On the non-woven sheet having root permeability and water permeability, a cultivation tank containing a limited amount of soil so as to allow root region restriction is formed, and a biodegradation is formed on the culture soil of the cultivation tank. Strawberry seedlings cultivated with a soil in a non-woven fabric having sexuality, permeability, and water permeability, placed in a state with the non-woven fabric, and growing the strawberry roots in the culture soil in the cultivation tank and the cultivation The strawberry is characterized by growing and cultivating a number of new fine roots in the non-woven fabric of the cultivation tank by naturally dying the root exposed outside the non-woven fabric of the tank and limiting the root area. Cultivation method. The strawberry seedling is stored in a non-woven fabric having biodegradability, root permeability, and water permeability with a limited amount of soil so that the root area can be restricted, and the strawberry seedling is implanted in the soil. Cultivated with a method for growing strawberry seedlings , which grows a number of new fine roots in the non-woven fabric by growing the roots of the non-woven fabric and allowing the roots exposed to the outside of the non-woven fabric to naturally die and restrict the root area . It is the said strawberry seedling, The cultivation method of the strawberry of Claim 10 characterized by the above-mentioned.

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