Sweet potato root function separation air tuberization planting method

Abstract

A sweet potato root function separation air tuberization planting method comprises the following steps: hanging a sweet potato cultivation container in the air, selecting the container to cultivate sweet potato vines which grow healthily, and performing directional induced differentiation to form an absorption fibrous root system; transferring fibrous root systems formed by induced differentiation into culture media such as wet and loose soil on the ground to absorb moisture and nutrition so as to ensure normal growth and development of sweet potato plants, and stripping the container after the growth and development of sweet potato tuberous roots in the container reach ornamental specifications so as to realize an air tuberization landscape. On the basis of conventional container cultivation of sweet potatoes, a new absorption fibrous root system is formed through directional induction of the top ends of sweet potato vines to achieve the absorption function, a new complete ornamental sweet potato living body growth system is constructed, and reverse configuration and function separation of tuberous root and fibrous root functions are achieved by means of the specific biological habit that sweet potatoes can be inversely planted; operation links are reduced, the air tuberization and scene formation time is shortened, and the ornamental value and investment benefits are improved.

Description

Technical Field

[0001] The invention relates to the technical field of agriculture, and in particular to a method for planting sweet potatoes by separating root functions and forming tubers in the air. Background Art

[0002] Sweet potato, also known as sweet potato, sweet potato, sweet potato, red potato, yam, sweet potato, etc., is an annual vine herbaceous rhizome plant belonging to the Convolvulaceae family of the Tubulariaceae order. It is a creeping dual-purpose grain and feed crop. It is also a high-yield, stable-yield, disaster-resistant crop with wide adaptability, strong stress resistance, drought and barrenness resistance, and few diseases and pests. For a long time, sweet potato has been widely cultivated in various places as an important food, feed, industrial raw material and energy crop.

[0003] In recent years, with the development of sightseeing and leisure agriculture, especially ecological agricultural sightseeing parks and facility agriculture demonstration parks, "new", "strange" and "special" cultivation technologies such as "air potato production" that break the traditional sweet potato ground soil planting model have emerged. In order to ensure that the tubers concentrate their nutrients on the trellis, the functions of the sweet potato roots need to be artificially regulated and separated, that is, the underground fibrous roots are responsible for absorbing water and nutrients, and the adventitious roots between the nodes of the sweet potato vines on the ground induce the production of tubers, which grow and hang on the trellis to achieve "air potato production" for leisure and sightseeing, which has great ornamental and scientific value.

[0004] Plants have formed the growth direction of "roots go down and seedlings grow up" in the long process of evolution. The "inverted planting" with the head and tail reversed will almost all fail in plant cutting vegetative body propagation or cultivation. However, the "inverted planting" method that violates the natural growth law has a good effect on sweet potato cultivation, which is closely related to the strong rooting ability of sweet potato internodes. The sweet potato root system is divided into three forms: fibrous roots, firewood roots and tuberous roots. From the perspective of physiological function differentiation, the three types of sweet potato roots are homologous and all develop from young roots. In agricultural production, there is a saying that "dry roots grow firewood roots, wet roots grow fibrous roots, and neither dry nor wet roots grow tuberous roots". Therefore, the unique "inverted planting" of sweet potatoes can be used to induce fibrous roots in a living organism, and the functional separation of the sweet potato root system can be achieved through the reverse configuration and functional positioning of the tuberous and fibrous roots.

[0005] The prior art discloses the separation of sweet potato root functions by hydroponics or grafting. The hydroponics method is a method for separating sweet potato root functions by allowing the root primordium at the base of the sweet potato plant to develop into fibrous roots in a nutrient solution. This method is very expensive due to the inherent defects of large investment in hydroponic facilities, continuous operation of the nutrient solution circulation day and night, which consumes a lot of manpower, material resources and electricity, no room for buffering in the event of a power outage, and the nutrient solution is easily contaminated by microorganisms. The grafting method uses the root base of a sweet potato related species (the underground root system does not swell) as a rootstock to graft sweet potatoes to achieve the separation of sweet potato root functions by not swelling the underground root system of the grafted sweet potato and forming tubers (tubes) from the adventitious roots of the aboveground stem nodes. However, the grafting method has a large workload and high technical requirements for operation. It is mostly used in experimental fields such as sweet potato breeding. There are certain bottlenecks in its application and promotion in fields such as aerial tuberization, sightseeing and leisure agriculture.

[0006] Also disclosed is a method for achieving sweet potato root function separation by inhibiting the formation and expansion of sweet potato tubers. Compared with hydroponic or grafting methods, this method is simple, easy to implement and low in cost. However, due to the expansion of adventitious roots and tubers after sweet potato transplantation, vine growth, pot hanging, and layering, it takes a long time to cultivate and manage, which affects the time for aerial tuber cultivation and landscape formation, and it is difficult to give full play to the ornamental effect of aerial tuber. Therefore, in order to solve the above technical problems, the present invention provides a new sweet potato root function separation aerial tuber cultivation technology. Summary of the invention

[0007] In order to overcome the above shortcomings, the present invention provides a method for planting sweet potatoes with root function separation and aerial tuber formation, which realizes the method of separating the analytical functions of sweet potatoes by hanging tubers in pots and promoting the growth of absorbing fibrous roots at the end of potato vines to form "inverted planting".

[0008] In order to achieve the above object, the technical solution adopted by the present invention is: A method for planting sweet potatoes with function-separated root systems and aerial tuber formation, wherein container-cultivated sweet potatoes are suspended in the air, top internodes of healthy sweet potato vines of the container-cultivated sweet potatoes are selected, and differentiation is directionally induced to form absorbing fibrous root systems, and the induced differentiated fibrous root systems are moved into a cultivation medium such as moist and loose soil on the ground to absorb water and nutrients to ensure normal growth and development of the sweet potato plants, and the containers are removed after the growth and development of the sweet potato tubers in the containers reaches ornamental specifications, thereby achieving an aerial tuber formation landscape.

[0009] For further optimization, the selected sweet potato vines are healthy vines of container-grown sweet potatoes. The potato-bearing containers can be hung and fixed in the air, and the top parts of the sweet potato vines are directionally induced to differentiate into absorbing fibrous root systems to replace the absorption function of the sweet potato roots in the cultivation containers.

[0010] Further optimization, the sweet potato vines can be aerially potted and layered according to the aerial tuber cultivation technology requirements.

[0011] Further optimization, the top internode of the robust vine is the inverted three-leaf or inverted four-leaf internode away from the top growth point of the sweet potato vine.

[0012] With further optimization, the directed induction and differentiation of the absorbing fibrous root system can be carried out in a hydroponic environment or in a moist loose matrix.

[0013] Further optimization, the moist and loose cultivation substrate is soil or soilless cultivation substrate material.

[0014] The beneficial effects of the present invention are: 1. Expand the ornamental value of aerial tubers and popularize the rare phenomenon of "upside-down planting" of plants. "Upside-down planting" survival is rare in the normally growing plant world, and is even rarer in crop cultivation. The present invention demonstrates the "upside-down planting" cultivation phenomenon of sweet potatoes, expanding the ornamental value and popularization significance of aerial tubers; 2. Shorten the time for aerial potato cultivation to become a landscape and improve the ornamental benefit. Conventional aerial potato cultivation technology has a long cycle and many links, including normal potato seedling cultivation, maintenance and vine arrangement, aerial pot hanging and layering to potato tuber formation. The present invention constructs a new absorbing fibrous root system by "inverted planting" after the sweet potatoes are formed in conventional container cultivation, realizes the reverse configuration and functional separation of tuber and fibrous root functions, reduces the operation links, shortens the time for aerial potato cultivation to become a landscape, and improves the ornamental value and investment benefits. 3. The operation process is simplified. On the basis of the normal tuber formation in containers such as potted plants and bag plants, a new absorbing fibrous root system is induced to form at the top of the sweet potato vines to realize the absorption function, and a new and complete ornamental sweet potato living growth system is constructed. The time for conventional aerial tuber formation, such as layering after hanging the pot, and waiting for tuber formation, is shortened. In addition, no additional operation process and management investment are required in the entire conventional sweet potato cultivation, which saves manpower and material resources. BRIEF DESCRIPTION OF THE DRAWINGS

[0015] Figure 1 Schematic diagram of the functional separation of the growth-promoting and absorbing root systems of sweet potato vines planted upside down. DETAILED DESCRIPTION

[0016] In order to more clearly understand the above-mentioned purposes, features and advantages of the present invention, the present invention is described in detail below in conjunction with specific embodiments. The following embodiments are implemented based on the technical solutions of the present invention, and detailed implementation methods and specific operating procedures are given. However, the present invention can also be implemented in other ways different from those described herein. Therefore, the protection scope of the present invention is not limited to the following embodiments.

[0017] Example 1 On the basis of conventional ground sweet potato potted plants (or container cultivation such as bags) cutting planting, trim the strong main vine of the sweet potato and wait for it to grow to a certain length, then press the top of the main vine into moist soil or moist cultivation medium (including hydroponics) to directionally induce the formation of fibrous root systems with absorption function at the top nodes of the sweet potato vines; then hang the container-cultivated sweet potatoes in the air to continue growing and forming tubers. When the fibrous root system at the top of the main vine has complete absorption function and the tubers in the container reach ornamental specifications, remove the hanging container in the air to expose the tubers, thus forming an aerial tuber landscape and realizing its ornamental value.

[0018] Example 2 Hang conventional sweet potato potted plants (or containers such as bags) in the air. As the sweet potato vines grow, they droop under gravity and gradually approach the ground. During this period, trim the strong main vines of the sweet potato and strengthen management. After the strong main vines of the sweet potato cultivated in the aerially suspended containers touch the ground, press the top of the main vine into moist soil or moist cultivation medium (including hydroponics) to directionally induce the top nodes of the sweet potato vines to differentiate into fibrous root systems with absorption functions. When the fibrous root systems at the top of the sweet potato main vines have complete absorption functions and the tubers in the cultivation containers reach ornamental specifications, remove the aerially suspended containers to expose the tubers, thus forming an aerial potato landscape and realizing its ornamental value.

[0019] The present invention shortens the time for aerial potato cultivation to become a landscape and improves the ornamental effect. Conventional aerial potato cultivation technology has a long cycle and many links, including normal potato seedling cultivation, maintenance and vine arrangement, aerial pot hanging and layering to potato tuber formation. The present invention constructs a new absorbing fibrous root system by "inverted planting" after sweet potatoes are tubered in conventional container cultivation, thereby achieving reverse configuration and functional separation of tuberous roots and fibrous roots, reducing operation links, shortening the time for aerial potato cultivation to become a landscape and improving the ornamental value and investment benefits.

[0020] The above shows and describes the main features, methods of use, basic principles and advantages of the present invention. It should be understood by those skilled in the art that the present invention is not limited by the above embodiments. The above embodiments and descriptions are only for explaining the principles of the present invention. Without departing from the spirit and scope of the present invention, the present invention may have various changes and improvements according to actual conditions, and these changes and improvements fall within the scope of the present invention to be protected. The scope of protection of the present invention is defined by the attached claims and their equivalents.

Claims

1. A method for planting sweet potatoes by separating root function and growing them in the air, characterized in that: Hang the container for cultivating sweet potatoes in the air, select the top internodes of the healthy sweet potato vines grown in the container, directionally induce differentiation to form an absorbing fibrous root system, and move the induced differentiated fibrous root system into the moist and loose soil on the ground and other cultivation media to absorb water and nutrients to ensure the normal growth and development of the sweet potato plants. After the growth and development of the sweet potato tubers in the container reaches the ornamental specifications, remove the container to achieve the aerial potato landscape.

2. A method for planting sweet potatoes by separating root function and growing them in the air as claimed in claim 1, characterized in that: The selected sweet potato vines are healthy vines of container-grown sweet potatoes. The potato-bearing containers can be hung and fixed in the air, and the top parts of the sweet potato vines are directionally induced to differentiate into absorbing fibrous root systems to replace the absorption function of the sweet potato root systems in the cultivation containers.

3. A method for planting sweet potatoes by separating root function and growing them in the air as claimed in claim 2, characterized in that: The sweet potato vines can be aerially potted and layered according to the aerial tuber cultivation technology requirements.

4. A method for planting sweet potatoes by separating root function and growing them in the air as claimed in claim 1, characterized in that: The top internode of the robust vine is a three-leaf or four-leaf internode away from the top growth point of the sweet potato vine.

5. A method for planting sweet potatoes by separating root function and growing them in the air as claimed in claim 1, characterized in that: The directed induction and differentiation formation of the absorbing fibrous root system can be carried out in a hydroponic environment or in a moist loose matrix.

6. A method for planting sweet potatoes by separating root function and growing them in the air as claimed in claim 5, characterized in that: The moist and loose cultivation substrate is soil or soilless cultivation substrate material.

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