6 results about "Allelopathy" patented technology

The invention relates to the technical field of green prevention and control of plant diseases, in particular to application of a cucumber-marigold intercropping mode to prevention and control of cucumber root knot nematode diseases. Cucumbers and marigold are intercropped and cultivated, and cucumber root-knot nematode infection and / or reproduction are / is inhibited by the allelopathy of the marigold; wherein marigold plants are planted in soil and / or a culture medium, so that stable root systems are formed before cucumber planting; 7-21 days after field planting of the marigold, cucumber seedlings are planted in the same cultivation container or the adjacent rhizosphere space, the root system of the cucumber and the root system of the marigold are located in the same cultivation environment but not directly twined, and the marigold keeps surviving and growing in the early stage and the middle stage of cucumber growth. The method solves the problem that an existing intercropping mode lacks a system method with a cultivation structure and a planting time sequence as the core, and has the advantages that operation is easy and convenient, applicability is high, popularization is easy, compared with cucumber single cropping, the root knot index of cucumbers under an intercropping system is remarkably reduced, and the requirement for green agriculture development is met.

The application discloses an intensive cultivation method of rare medicinal materials with plant allelopathy, and relates to the technical field of Chinese medicinal material cultivation, and comprises a radicle safety domain, an outer edge protection domain and a cultivation unit with a directional selection and penetration interface between the two domains, wherein the radicle safety domain is filled with a germination and cultivation substrate, and the outer edge protection domain is filled with a protection substrate and is configured with an allelopathy source plant component; seeds are placed in the radicle safety domain and seedling raising management is performed, a net outward seepage component is formed by irrigation and water replenishment within a sensitive window from seedling emergence to slow seedling, so that inhibitory small molecules outward migrate at the directional selection and penetration interface and are intercepted and inactivated on the outer edge side, while water and inorganic ion supplies are maintained; the outer edge grass and bacteria inhibiting effect is continuously maintained in the early stage of planting and flux maintenance is implemented.

The invention relates to the technical field of plant allelopathy, and discloses a device for researching allelopathy among plants, which comprises an incubator, and the top of the incubator is connected with a communication bin; and the communication bin is internally provided with a communication structure for performing allelopathic communication between the two observation rooms. According to the invention, the allelochemicals in the current growth stage of the plant in one observation room needing to be collected are correspondingly opened, a ball valve of an air pipe without a branch pipe in the observation room needing to collect the allelochemicals is opened, and then a branch pipe three-way valve installed in the other observation room is opened, so that air flow can only flow into an air bag; then the motor is started to drive the fan to rotate to extract allelochemicals in the observation room to the inner side of the air bag, air flows through the filter disc when the allelochemicals in the observation room are collected through the air bag, and the allelochemicals in the air flows are adsorbed through an elution layer on the surface of the filter disc; the beneficial effect of collecting the allelochemicals released into the air by the plants in real time in the whole growth period or different growth stages of the plants is achieved.

This invention discloses an extract of *Taxus chinensis* aril and its application. The extract is obtained through the following steps: 1) thoroughly crushing the *Taxus chinensis* aril using a mortar and pestle; 2) extracting with water and ethanol as solvents, followed by rotary evaporation to obtain the mother liquor; 3) diluting the mother liquor to the desired concentration. Experimental results show that treatment with a 0.3 g / mL concentration of the aqueous extract of *Taxus chinensis* aril can inhibit the growth of barnyard grass in rice paddies, providing a research basis for the development of biological herbicides. Therefore, this invention provides a feasible method for studying the allelopathic effects of *Taxus chinensis* aril on barnyard grass and rice, and has practical application value.

The invention discloses an early reflection injection method of a surface DirAC. The method comprises the following steps: performing time-frequency analysis on an FOA signal to obtain a DirAC arrival direction and diffusivity psi (f, t), and receiving a path set comprising a direction rk, a time delay tauk and a gain gk; and constructing a direction coding impulse response corresponding to the rk in an FOA / DirAC domain, projecting according to an angular difference weight ((1 + cos delta theta) / 2) n (f, t), and executing energy normalization on each path. And constructing a frame-level injection budget rho (f, t) based on the psi (f, t) and the intensity, constraining the injection energy, and scheduling between path-level / mixing / merging modes. According to the method, the direction selectivity and the external allelopathy are improved while the energy and physical consistency is maintained.

The application discloses a method for regulating the germination and growth of platycodon grandiflorum by allelopathy between medicinal materials and application thereof, and uses water extraction of traditional Chinese medicinal materials to carry out allelopathy treatment on platycodon grandiflorum seeds to regulate the germination and growth of the platycodon grandiflorum, wherein the traditional Chinese medicinal materials are any one of radix cyathulae, radix saposhnikoviae and radix adnati; the water extraction of traditional Chinese medicinal materials is any one of water extraction of radix cyathulae, water extraction of radix saposhnikoviae and water extraction of radix adnati; the concentration of the water extraction of radix cyathulae is 10-20 mg / ml; the concentration of the water extraction of radix saposhnikoviae is 10-30 mg / ml; and the concentration of the water extraction of radix adnati is 20-30 mg / ml; the application takes radix adnati, radix cyathulae and radix saposhnikoviae as research objects, studies the allelopathy of the water extraction of the three kinds of traditional Chinese medicinal materials on the germination and seedling growth of the platycodon grandiflorum, and selects the most suitable traditional Chinese medicinal material for intercropping with the platycodon grandiflorum and a treatment method before intercropping, thereby laying a foundation for the selection of the platycodon grandiflorum and other intercropped medicinal materials in the future.