Seed hydroponic method

Abstract

The present invention belongs to hydroponic technology, and specifically relates to a seed hydroponic method. After the seeds are cultivated into seedlings, they are subjected to root pruning and thirsty water treatment. After continuing to cultivate, they can be transported or transplanted as hydroponic plant products after they produce roots again. In the above scheme, after the seeds are cultivated into seedlings, since the seedlings have been cultivated in the hydroponic solution, their root system is indeterminate. If they are allowed to grow, they are prone to atrophy, which affects the life of the plants. After the seedlings are root pruned, they are subjected to thirsty water treatment to awaken the thirsty genes of the plants and promote the plants to produce thirsty roots. The secondary root production is the water root system, which improves the root system's ability to absorb water and nutrients, greatly improves the environmental adaptability of the plants, and prolongs the life of the plants.

Description

Technical Field

[0001] The invention belongs to hydroponic technology, and in particular relates to a seed hydroponic method. Background Art

[0002] Hydroponics is a method of growing plants without soil. Hydroponic plants are not only clean and hygienic, but also highly ornamental and environmentally friendly, so they are favored by consumers. There are many hydroponic plant products on the market, but many consumers find that it is difficult for the hydroponic plant products they purchase to survive for a long time, even for the plant varieties that are easiest to maintain and survive. Therefore, how to extend the life of hydroponic plants, or how to improve the environmental adaptability of hydroponic plants, has become the focus and difficulty of hydroponic technology research. Summary of the invention

[0003] The object of the present invention is to provide a seed hydroponic method, which can greatly improve the environmental adaptability of hydroponic plants, prolong the life of hydroponic plants, and reduce the difficulty of cultivation.

[0004] To achieve the above purpose, the technical solution adopted by the present invention is: a seed hydroponic method, characterized in that: after the seeds are cultivated into seedlings, the roots are pruned and water is treated, and the seeds are further cultivated. After they produce roots again, they can be transported or transplanted as hydroponic plant products.

[0005] The specific steps include:

[0006] (1) Seed pretreatment: Soak woody plant seeds in water for 6 to 12 hours at a temperature of 18 to 25°C;

[0007] (2) First hydroponic culture: The soaked seeds are placed in a sponge in a hydroponic device for culture. The lower part of the hydroponic device is immersed in a hydroponic solution at a temperature of 5 to 30°C. The seeds take root and form seedlings.

[0008] (3) Root pruning and watering: When the roots of the seedlings are 6 to 8 cm long, the roots are pruned until they are 2.5 to 4 cm long. The lower part of the hydroponic device is separated from the hydroponic solution, and the sponge of the hydroponic device is allowed to dry naturally. After drying, water is continuously required for 20 to 30 hours.

[0009] (4) Second hydroponic culture: The lower part of the hydroponic device is immersed in the hydroponic solution again after it has dried out. After the roots of the seedlings grow again, they can be transported or transplanted as hydroponic plant products.

[0010] In the above scheme, after the seeds are cultivated into seedlings, since the seedlings have been cultivated in hydroponic solution, their root system is adventitious. If allowed to grow, they are prone to atrophy, which affects the life of the plants. After the seedlings are root pruned, they are treated with thirsty water to awaken the thirsty genes of the plants and encourage the plants to produce thirsty roots. The secondary roots are water roots, which improve the root system's ability to absorb water and nutrients, greatly improve the plant's ability to adapt to the environment, and extend the life of the plants. BRIEF DESCRIPTION OF THE DRAWINGS

[0011] Figure 1 A schematic diagram of a hydroponic device used in the present invention;

[0012] Figure 2 It is a schematic diagram of the core 20 of the hydroponic device, i.e., the sponge. DETAILED DESCRIPTION

[0013] The technical solution of the present invention is further described below.

[0014] When the present invention performs hydroponics, the hydroponic device used is a hydroponic device disclosed by the applicant in a prior application entitled "Hydroponic Device" (application number 2022103375193, application date 2022.03.31), such as Figure 1 , 2 As shown, it comprises a first half unit 10a and a second half unit 10b, which enclose a tube body 10. The cavity enclosed by the tube body 10 constrains and accommodates a water-absorbing and soft tube core 20. The middle of the tube core 20 has a core cavity 21 that passes through the upper and lower end surfaces. The core cavity 21 and the outer peripheral surface of the tube core 20 have a radial interface 22, and the radial interface 22 extends from the upper and lower end surfaces of the tube core 20 in the vertical direction. The tube core 20 is made of sponge, which has good water absorption, is soft and will not squeeze seeds and seedlings, and is low in price.

[0015] In the actual cultivation process, the following methods can be used: a seed hydroponic method, in which the seeds are cultivated into seedlings, the roots are cut, the seeds are watered, and the seeds are cultivated further. After the seeds produce roots again, they can be transported or transplanted as hydroponic plant products.

[0016] The specific steps include:

[0017] (1) Seed pretreatment: Soak woody plant seeds in water for 6 to 12 hours at a temperature of 18 to 25°C;

[0018] (2) First hydroponic culture: The soaked seeds are placed in a sponge in a hydroponic device for culture. The lower part of the hydroponic device is immersed in a hydroponic solution at a temperature of 5 to 30°C. The seeds take root and form seedlings.

[0019] (3) Root pruning and watering: When the roots of the seedlings are 6 to 8 cm long, the roots are pruned until they are 2.5 to 4 cm long. The lower part of the hydroponic device is separated from the hydroponic solution, and the sponge of the hydroponic device is allowed to dry naturally. After drying, water is continuously required for 20 to 30 hours.

[0020] (4) Second hydroponic culture: The lower part of the hydroponic device is immersed in the hydroponic solution again after it has dried out. After the roots of the seedlings grow again, they can be transported or transplanted as hydroponic plant products.

[0021] Specifically, during the seed soaking process, the seed cell walls soften or even rupture, softening the seed as a whole and making it easier for the bud embryo to produce roots. However, if the soaking time is too long, the bud embryo will be too soft and will easily rot during the cultivation process. Therefore, the soaking temperature and time need to be strictly controlled.

[0022] In the step (2), the soaked seeds are first placed in a hydroponic device with a sponge dimension of 2 to 3 cm in the vertical direction (thickness of the sponge in the vertical direction) for cultivation, and the seeds enter the sponge to a depth of 0.5 to 1 cm. After the seeds produce roots to form seedlings and the roots are exposed 1 to 2 cm outside the sponge, the seedlings are taken out and placed in a hydroponic device with a sponge dimension of 5 to 6 cm in the vertical direction for further cultivation, and the seed part of the seedling is 2 to 3 cm deep. After the seedlings are placed in the hydroponic device with a sponge dimension of 5 to 6 cm in the vertical direction for cultivation, the water retention of the sponge is controlled to be less than 1%.

[0023] In step (3), after the roots of the seedlings are exposed to 2 to 4 cm outside the hydroponic device, the roots are pruned until the length of the roots exposed outside the hydroponic device is less than 1 cm; after the sponge of the hydroponic device dries naturally, it is kept in a dry and thirsty state for 24 hours, and then the seedlings are hydroponically cultured for the second time. The so-called "thirsty state" means that the plants are not provided with water, so that the plants are always in a thirsty state. Maintaining the thirsty state in the present invention is to bring the plants close to the critical point of dehydration and death, so as to awaken the plants' desire for water to the greatest extent, thereby growing a stronger root system.

[0024] After the soaked and softened seeds are placed in a hydroponic device, they can be cultivated under normal hydroponic conditions (the so-called "normal hydroponic conditions" are: temperature between 16°C and 26°C, air humidity between 49% and 70%, which can be understood as no need for human intervention to change temperature and humidity). No additional heating and water control are required. The height of an ordinary hydroponic device is 5 to 6 cm. When cultivating seeds, due to the small size of the seeds, a small-sized hydroponic device can be used, or the sponge in the hydroponic device can be directly cut into two sections for use. This can reduce some of the cultivation costs and is also more conducive to controlling the water retention of the sponge in the early stage of root pruning of the seedlings.

[0025] When cultivating seeds, use a sponge 2 to 3 cm thick. After softening, the bud embryo will quickly absorb water and produce roots to form seedlings. After the seedling root length is 1 to 2 cm exposed from the sponge, replace the sponge in the hydroponic device with a normal size (5 to 6 cm thick sponge). The water retention of the sponge is controlled at less than 1%. Continue to cultivate and the root system continues to grow. The roots at this stage are called adventitious roots. After the adventitious roots are 5 to 6 cm long (3 to 4 cm long outside the sponge), cut off a section of the adventitious roots, and the length of the roots outside the sponge does not exceed 1 cm. This is because the adventitious roots continue to grow, and their ability to absorb water and nutrients will gradually decrease after they grow to a certain extent. The root system of the seedlings will gradually decline, causing the plants to shrink, burn or even die; the remaining root system inside the sponge can ensure that the roots of the seedlings will not shrink prematurely. After cutting the roots, place the hydroponic device in the outside world (without culture solution). After the water in the sponge is completely lost and dried, it is delayed for another 24 hours to keep the plants in a thirsty state and reach the critical point of water shortage, fully awakening the thirsty gene of the plants. At this time, it is placed in the hydroponic solution for cultivation again, and roots are produced for the second time. The roots this time are called water roots. Compared with adventitious roots, the ability to provide water and nutrients to the plants is fully improved, and they are not easy to shrink or rot, which greatly prolongs the life of the plants. When the seedlings are thirsty, the temperature is 18℃~24℃ and the humidity is 56%~70%.

Claims

1. A seed hydroponic method comprising the following steps: (1) Seed pretreatment: Soak woody plant seeds in water for 6 to 12 hours at a temperature of 18 to 25°C; (2) First hydroponic culture: The soaked seeds are placed in the sponge of the hydroponic device for culture. The lower part of the hydroponic device is immersed in the hydroponic solution. The temperature of the hydroponic solution is 5-30°C. The seeds take root and form seedlings. (3) Root pruning and watering: When the roots of the seedlings are 6 to 8 cm long, the roots are pruned until they are 2.5 to 4 cm long. The lower part of the hydroponic device is separated from the hydroponic solution, and the sponge of the hydroponic device is allowed to dry naturally. After drying, water is continuously required for 20 to 30 hours. (4) Second hydroponic culture: The lower part of the hydroponic device is immersed in the hydroponic solution again after it has dried out. After the roots of the seedlings grow again, they can be transported or transplanted as hydroponic plant products.

2. The seed hydroponic method according to claim 1, characterized in that: In the step (2), the soaked seeds are first placed in a hydroponic device with a sponge dimension of 2 to 3 cm in the vertical direction for cultivation, and the seeds enter the sponge to a depth of 0.5 to 1 cm. After the seeds produce roots to form seedlings and the roots are exposed 1 to 2 cm outside the sponge, the seedlings are taken out and placed in a hydroponic device with a sponge dimension of 5 to 6 cm in the vertical direction for further cultivation, and the seed part of the seedlings is 2 to 3 cm deep.

3. The seed hydroponic method according to claim 2, characterized in that: After the seedlings are placed in a hydroponic device with a sponge having a size of 5 to 6 cm in the upper and lower directions, the water retention capacity of the sponge is controlled to be less than 1%.

4. The seed hydroponic method according to claim 1, characterized in that: In the step (3), after the roots of the seedlings are exposed to the outside of the hydroponic device for 2 to 4 cm, the roots are pruned until the length of the roots exposed to the outside of the hydroponic device is less than 1 cm.

5. The seed hydroponic method according to claim 1, characterized in that: In step (3), after the sponge of the hydroponic device dries naturally, it is kept in a dry and thirsty state for 24 hours, and then the seedlings are hydroponically cultured for the second time.

6. The seed hydroponic method according to claim 1, characterized in that: When the seedlings are treated with thirsty water, the temperature is 18℃~24℃ and the humidity is 56%~70%.

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