JP-7856024-B2 - Plant cultivation methods, plant cultivation kits, methods for producing plant seedlings, and rooting promoters for plants.

Inventors

• 中曽根 光
• 杉本 広樹
• 阿部 円佳

Assignees

• 株式会社豊田中央研究所

Dates

Publication Date

20260511

Application Date

20230224

Claims (6)

1. A method of cultivating plants using hydroponics, A nitrification culture solution is prepared by culturing a nitrifying bacteria-containing nutrient solution that includes an organic nitrogen source containing organic nitrogen and a microbial source containing nitrifying bacteria. When starting the cultivation of plants using hydroponics, pre-culture is performed using a solution containing the nitrification culture solution as the growing solution to be given to the plants. A method for cultivating plants, comprising changing the cultivation solution after the preculture to a solution that does not contain the nitrification culture solution.
2. A method for cultivating plants by hydroculture as described in claim 1, A method of cultivating plants using artificial growing media containing ion exchange resin nutrients as the growing medium for hydroponics.
3. A method for cultivating plants by hydroculture as described in claim 1, A soil culture solution is prepared by culturing a soil-containing nutrient solution that includes an organic nitrogen source containing organic nitrogen and at least one of bark compost and leaf mold. By bringing the portion of a plant body having a cut surface, including the cut surface, into contact with the soil culture solution, a plant seedling with roots growing from the portion including the cut surface is obtained. A method for cultivating plants, comprising performing the aforementioned preculture using the obtained plant seedlings.
4. This is a plant cultivation kit for hydroponics, Artificial growing medium used in hydroponics, Plant seedlings for hydroponics cultivation, A nitrification culture solution obtained by culturing a nitrifying bacteria-containing nutrient solution that includes an organic nitrogen source containing organic nitrogen and a microbial source containing nitrifying bacteria, A plant cultivation kit that includes [the following items].
5. A method for producing plant seedlings, A soil culture solution is prepared by culturing a soil-containing nutrient solution that includes an organic nitrogen source containing organic nitrogen and at least one of bark compost and leaf mold. A method for producing plant seedlings, comprising bringing a portion of a plant body having a cut surface, including the cut surface, into contact with a soil culture solution to obtain plant seedlings that have grown roots from the portion including the cut surface.
6. It is a rooting stimulant for plants, A plant rooting promoter containing a soil culture solution obtained by cultivating a soil-containing nutrient solution that includes an organic nitrogen source containing organic nitrogen and at least one of bark compost and leaf mold.

Description

This disclosure relates to a method for cultivating plants, a plant cultivation kit, a method for producing plant seedlings, and a rooting promoter for plants. Conventionally, various methods for cultivating plants are known. Generally, when cultivating plants using soil, the action of nitrifying bacteria and other microorganisms present in the soil promotes nitrification along with ammonia conversion using organic matter in the soil and organic fertilizers added to the soil, thereby generating inorganic nutrients. Furthermore, methods that do not use soil are known, such as using cultivation solutions or microbial carriers containing microorganisms including nitrifying bacteria (see, for example, Patent Documents 1 and 2, and Non-Patent Documents 1 and 2). Thus, even in methods using cultivation solutions or microbial carriers containing microorganisms, similar to those using soil, it is possible to continuously generate inorganic nutrients from organic fertilizers, etc., through the action of microorganisms, enabling the healthy growth of various plants, including vegetables. Patent No. 6156821Patent No. 5392800 Shinohara, "The Birth of Designer Soil Technology," Chemistry and Biology, 59 (3), 144-150, 2021.Makoto Shinohara et al., "Microbial mineralization of organic nitrogen into nitrate to allow the use of organic fertilizer in hydroponics", Soil Science and Plant Nutrition, 57(2), 2011, [online] [Retrieved January 13, 2023], Internet <https://www.tandfonline.com/doi/full/10.1080/00380768.2011.554223> An explanatory diagram showing how to cultivate plants using hydroponics.An explanatory diagram showing the method for preparing plant seedlings.An explanatory diagram showing the ion concentrations of each ion in the culture medium CM1 to CM4 of D18.An explanatory diagram showing the pH of culture solutions CM1 to CM4 for D18.An explanatory diagram showing the ion concentrations of each ion in the culture medium CM1 to CM4 of D27.An explanatory diagram showing the pH of culture solutions CM1 to CM4 for D27.An explanatory diagram showing the changes in ion concentration in culture media CM1 to CM4.An explanatory diagram showing the results of photographing aromaticus seedlings over time.This diagram illustrates the results of measuring the raw weight of the above-ground portion after approximately six months.An explanatory diagram showing the results of measuring the number of branches after approximately 6 months.This diagram shows the results of calculating the total length of each branch after approximately six months.This diagram shows the results of measuring the number of green large leaves after approximately six months.This diagram shows the results of determining the percentage of yellowed shiso leaves after approximately six months.An explanatory diagram showing the appearance of D18 Aromaticus seedlings 22 days after the start of cultivation.An explanatory diagram showing the results of measuring the total length of the main roots on day 22.An explanatory diagram showing the results of calculating the average main root length on day 22.An explanatory diagram showing the results of measuring the number of main roots on day 22.An explanatory diagram showing the appearance of D27 Aromaticus seedlings 23 days after the start of cultivation.An explanatory diagram showing the results of measuring the total length of the main roots on day 23.An explanatory diagram showing the results of calculating the average main root length on day 23.An explanatory diagram showing the results of measuring the number of main roots on day 23. A. First embodiment: Figure 1 is an explanatory diagram showing a method of cultivating plants by hydroculture according to the first embodiment. In this embodiment of the plant cultivation method, when starting hydroculture, a nitrification culture solution described later is used as the cultivation solution, and then the cultivation solution is changed to a solution that does not contain the nitrification culture solution. Here, hydroculture is a type of plant cultivation method in which artificial growing medium is used instead of soil, and plant seedlings that have rooted in this artificial growing medium are planted and given water or water containing inorganic liquid fertilizer without using organic fertilizer. As the artificial growing medium, porous materials with aeration and water retention properties such as inorganic foam (hydroballs) made by firing clay at high temperature and expanding it, zeolite, and foamed resin can be used, and below, cultivation methods using such artificial growing medium will be collectively referred to as hydroculture. When implementing the hydroculture method for cultivating plants according to this embodiment, first, plant seedlings to be cultivated by hydroculture are prepared (step T100). Various plants can be used as plants to be cultivated by hydroculture. Since hydroculture is a method suitable for indoor cultivation, aromatic plants