JP2014176338A - Cultivation soil temperature control system - Google Patents

Abstract

An object of the present invention is to provide a soil temperature adjustment system that increases the yield by efficiently adjusting the soil temperature.
A culture temperature adjustment system 5 adjusts the temperature of culture soil in which a plurality of strawberries 4 are planted side by side. The culture temperature control system 1 includes a first pipe 6 and a second pipe 7 through which water flows, and a connecting portion 8 that connects ends of the first pipe 6 and the second pipe 7. I have. The first pipe 6 is arranged along the arrangement direction of the plurality of strawberries 4 on the cultivation soil, and the second pipe 7 is arranged along the arrangement direction within the cultivation soil below the first pipe 6.
[Selection] Figure 2

Description

  The present invention relates to a soil temperature control system.

  In normal strawberry cultivation, the planting period is around mid-September and the harvest period is from late November to mid-May in the following year. Even after the harvest season, the strawberry strain has maintained its vigor for a certain period of time, but the climatic conditions shift from reproductive growth that produces fruits to vegetative growth that does not produce fruits, making harvesting impossible.

  In July, the hot soil continues every day, so the soil grows hot, and as a physiological phenomenon to prevent withering by absorbing hot water, a film is formed around the capillary root, making it impossible to absorb nutrients. It will eventually die.

  Therefore, conventionally, it has been difficult to harvest strawberries from July to August when strawberries are traded at a high price.

  In winter, when the cultivation temperature drops below a certain level, the strawberry strain becomes dormant due to the need to maintain vitality until spring, and cannot be harvested. Usually, measures are taken to prevent the soil temperature from dropping, such as by heating, but in addition to consuming a large amount of petroleum fuel, the heated air gathers at the ceiling of the greenhouse, so it is about 1 meter above the ground. There was a problem that it was inefficient to raise the temperature of the medium installed at the height.

  Then, in order to prevent it from going into a dormant state in winter, a high-cultivating method for strawberries in which a hot water pipe is laid in the cultivation soil and hot water is circulated in the hot water pipe has been proposed (Patent Document 1). However, since the above-mentioned hot water pipes are buried in the cultivation soil, only the strawberry capillary roots can be heated, and it is still difficult to harvest in summer.

  In other words, if the temperature of the soil is too high or too low, the strawberry cannot be harvested, and the temperature of the culture cannot be adjusted efficiently so far. There was a problem that the amount was small.

JP 2005-237371 A

  Then, this invention makes it a subject to provide the cultivation temperature adjustment system which aimed at the yield increase by adjusting the cultivation temperature efficiently.

  Invention of Claim 1 for solving the subject mentioned above is a soil temperature adjustment system which adjusts the temperature of culture soil in which a plurality of plants were planted side by side, and in the arrangement direction of the plurality of plants on the culture soil A first pipe through which water flows, a second pipe which is arranged along the line-up direction in the culture soil below the first pipe and through which water flows, and the first pipe And a connecting portion that connects ends of the first pipe and the second pipe.

  According to a second aspect of the present invention, in the soil temperature adjustment system according to the first aspect of the present invention, the system includes a water feeding device that causes water to flow through the first pipe and the second pipe.

  The invention described in claim 3 is the soil temperature control system according to claim 1 or 2, characterized in that water flows from the second pipe toward the first pipe.

  The invention according to claim 4 is the soil temperature control system according to any one of claims 1 to 3, wherein hot water or cold water flows through the first pipe and the second pipe. And

  Invention of Claim 5 was equipped with the adjustment means which adjusts the temperature of the water which flows into the said 1st pipe and the said 2nd pipe in the soil cultivation temperature control system of any one of Claims 1-4. It is characterized by that.

  As described above, according to the first, second, fourth, and fifth aspects of the invention, the first pipe adjusts the soil temperature near the crown of the plant, and the second pipe grows near the capillary root of the plant. Adjust the temperature. This can cool the crown where the strawberry senses the outside temperature when the temperature is high, induce vegetative growth to reproductive growth, or promote flower bud differentiation and extend the harvest time. can do. In addition, the temperature of the root zone, which is the soil around the crown portion and the capillary root, can be adjusted, and the death in summer and the hibernation state in winter can be prevented. Thus, by adjusting the temperature of the crown part and the capillary root of the plant, the soil temperature can be adjusted efficiently, and the yield can be increased. And since the 1st pipe and the 2nd pipe are connected, water can be poured into two 1st pipes and 2nd pipes arranged up and down with one pump.

  According to invention of Claim 3, since water flows toward a 1st pipe from a 2nd pipe, the air in a pipe can be extracted upwards.

It is a top view of the strawberry cultivation bench incorporating the cultivation temperature control system of the present invention. It is the II sectional view taken on the line of FIG. It is the II-II sectional view taken on the line of FIG. FIG. 4 is a partially enlarged view of FIG. 3.

  Hereinafter, the cultivation temperature control system of this invention is demonstrated with reference to FIGS. First, prior to the description of the cultivating temperature adjustment system, a tall cultivation apparatus for strawberry cultivation will be described. In the greenhouse for strawberry cultivation, multiple rows of tall cultivation apparatuses 1 are arranged. The elevated cultivation apparatus 1 includes a long strawberry cultivation bench 2 and a support base 3 that supports the strawberry cultivation bench 2.

  The strawberry cultivation bench 2 is provided in a long and substantially box shape, and the upper part is opened. The strawberry cultivation bench 2 accommodates the cultivation soil 9, and strawberry 4 (= plant) is planted side by side along the longitudinal direction. In the present embodiment, an example in which two rows of strawberries 4 are planted on one strawberry cultivation bench 2 will be described, but only one row or three or more rows may be used.

  A plurality of support tables 3 are arranged side by side along the longitudinal direction of the strawberry cultivation bench 2 and support the strawberry cultivation bench 2.

  As shown in FIG. 4, the strawberry 4 has a crown portion 41 that is near the surface of the soil 9 and senses the outside air temperature, and a capillary root 42 that grows below the crown portion 41. ing. Further, the soil 9 around the crown portion 41 and the capillary root 42 is referred to as a rhizosphere portion 91.

  Next, the cultivating temperature adjustment system 5 incorporated in the above-described elevated cultivation apparatus 1 will be described. The culture temperature control system 5 includes a first pipe 6 and a second pipe 7 through which water flows, a connecting portion 8 that connects the ends of the first pipe 6 and the second pipe 7, An adjustment unit (adjustment unit) (not shown) that adjusts the temperature of the water flowing through the first pipe 6 and the second pipe 7 and a pump (water supply device) (not shown) that feeds water into the first pipe 6 and the second pipe 7 And.

  The first pipe 6 and the second pipe 7 are made of, for example, polyvinyl chloride or the like, and are formed in a pipe shape so that water can pass therethrough. The first pipe 6 is arranged on the culture soil 9 along the arrangement direction (longitudinal direction) of the plurality of strawberries 4. The first pipe 6 is arranged between the rows of strawberries 4 and the lower half is buried in the cultivation soil 9. By the heat exchange with the water flowing through the first pipe 6, the soil temperature around the crown portion 41 of the strawberry 4 can be adjusted.

  The second pipe 7 is disposed in the culture soil 9 below the first pipe 6 along the direction in which the strawberries 4 are arranged. The second pipe 7 is buried immediately below the first pipe 6, and is arranged between the two roots of the capillary roots 42 of the strawberries 4 and the capillary roots 42 of the strawberries 4. It has been. By the heat exchange with the water flowing through the second pipe 7, the soil temperature around the capillary root 42 of the strawberry 4 can be adjusted.

  The connecting portion 8 is formed in a U shape so as to connect the end portions of the first pipe 6 and the second pipe 7. By this connecting portion 8, the water that has flowed into the second pipe 7 flows into the first pipe 6 through the connecting portion 8.

  The adjusting unit (not shown) is a known temperature adjusting unit that adjusts the temperature of water by heating the pipes connected to the first pipe 6 and the second pipe 7 with gas or the like. A pump is for flowing the water in the water storage tank which is not shown in figure to the 1st pipe 6 and the 2nd pipe 7, and a well-known pump is used. A pump (not shown) allows water to flow from the second pipe 6 toward the first pipe 7.

  According to the culture temperature adjustment system 5 described above, the temperature of the water flowing through the first pipe 6 and the second pipe 7 is adjusted by an adjustment unit (not shown), for example, cold water is allowed to flow in the summer to cool the culture 9. It is possible to warm the soil 9 by flowing warm water in winter.

  According to the culture temperature adjustment system 5 described above, the first pipe 6 adjusts the culture temperature near the crown portion 41 of the strawberry 4, and the second pipe 7 adjusts the culture temperature near the capillary root 42 of the strawberry. Thereby, at a time when the temperature is high, the strawberry 4 can cool the crown portion 41 that senses the outside temperature, can be induced from vegetative growth to reproductive growth, or can promote the differentiation of flower buds. Can be extended. Moreover, the temperature of the rhizosphere part 91 which is the cultivating soil 9 around the crown part 41 and the capillary root 42 can be adjusted, and the dead in summer and the hibernating state in winter can be prevented. Thus, by adjusting the temperature of the crown part 41 and the capillary root 42 of the strawberry 4, the soil temperature can be adjusted efficiently, and the yield can be increased.

  Explaining in detail, the first pipe 6 uses the fact that the crown part 41 senses the outside air temperature of the strawberry 4 and induces the strawberry 4 from vegetative growth to reproductive growth by cooling even when the temperature is high. Alternatively, it is possible to extend the harvest time by promoting the differentiation of flower buds. Further, by preventing infectious diseases such as carbon diseases that are likely to occur when strawberry seedlings are planted at an early stage, and death due to physiological phenomena of strawberry 4, it is possible to grow a strain for early harvest. In the period when the temperature is low, the crown portion 41 is heated by the first pipe 6 to prevent a resting state, and the continuous flower bud differentiation by the activation of the growth point is promoted and the leaf is expanded. Increasing the speed can increase and stabilize the yield.

  In addition, the second pipe 7 cools the area around the capillary root 42 of the strawberry 4 at a time when the temperature is high, thereby preventing the occurrence of physiological phenomena that form a film around the capillary root 42, and fatigue and nutrition of flowers. It is possible to extend the harvest time by preventing the death due to shortage and improving the environment for obtaining the necessary nutrients and moisture. In addition, when a strawberry seedling is established early, it is possible to grow a strain for early harvesting by the same effect. On the other hand, when the temperature is low, the soil 9 is heated by the second pipe 7 to maintain the soil temperature in a temperature range that does not inhibit the activation of the capillary root 42 and is necessary for the growth of the crown portion 41. It is possible to prepare an environment for obtaining proper nutrients and moisture.

  Moreover, according to the above-mentioned culture temperature control system 5, since the 1st pipe 6 and the 2nd pipe 7 are connected, water can be poured into two pipes with one pump.

  Moreover, according to the above-mentioned culture temperature adjustment system 5, since water flows toward the 1st pipe 6 from the 2nd pipe 7, the air in a pipe can be extracted upwards.

  In addition, according to embodiment mentioned above, although water was poured toward the 1st pipe 6 from the 2nd pipe 7, this invention is not limited to this. Conversely, water may flow from the first pipe 6 toward the second pipe 7.

  Moreover, according to embodiment mentioned above, although the strawberry 4 was mentioned as an example and demonstrated as a plant, this invention is not limited to this. Other plants having a crown portion and a capillary root may be used.

  Moreover, according to embodiment mentioned above, although the pump was used as a water supply apparatus, what is necessary is just to be able to send water to the 1st pipe 6 and the 2nd pipe 7 as a water supply apparatus, for example, It may be directly connected to the water pipe.

  Further, the above-described embodiments are merely representative forms of the present invention, and the present invention is not limited to the embodiments. That is, various modifications can be made without departing from the scope of the present invention.

4 Strawberry 5 Soil temperature control system 6 1st pipe 7 2nd pipe 8 Connecting part 9 Soil

Claims (5)

A culture temperature adjustment system that adjusts the temperature of the culture soil in which a plurality of plants are planted side by side,
A first pipe disposed on the culture soil along the direction in which the plurality of plants are arranged, and water flows therein;
A second pipe that is arranged along the alignment direction in the culture soil below the first pipe, and in which water flows;
A connecting portion for connecting ends of the first pipe and the second pipe;
A soil temperature control system characterized by having The soil cultivation temperature control system according to claim 1, further comprising a water feeding device that allows water to flow through the first pipe and the second pipe. The soil temperature adjustment system according to claim 1 or 2, wherein water flows from the second pipe toward the first pipe. Hot water or cold water is flowing through the first pipe and the second pipe. The soil culturing temperature adjustment system according to any one of claims 1 to 3. The cultivating temperature adjusting system according to any one of claims 1 to 4, further comprising an adjusting unit that adjusts a temperature of water flowing through the first pipe and the second pipe.

Images