2results about How to "Improve growth" patented technology

This invention provides a method for cultivating grafted kiwifruit seedlings with two root systems, comprising the following steps: S1, Rootstock acquisition: Select one one-year-old *Actinidia cuspidatum* and one *Actinidia deliciosa* seedling as rootstocks, and prune the main roots of both rootstocks to a length of 10-15 cm, retaining 4-5 cm of stem; S2, Scion acquisition: Select branches of the *Actinidia deliciosa* variety as scions, with a length of 8-12 cm. Seal the upper end with wax or wound healing agent, and smooth the lower end with a flat cut; S3, Grafting: Using bark grafting or cleft grafting, graft the two rootstocks in opposite directions onto the lower end of the same scion, and wrap the grafting area with grafting film to form a grafted kiwifruit seedling. The grafted seedlings cultivated by this invention have two sets of root systems, one for *Actinidia cuspidatum* and one for *Actinidia deliciosa*, thus exhibiting strong resistance to waterlogging, drought, and pests and diseases, and absorbing nutrients comprehensively, resulting in high-quality and high-yield fruit with significant economic benefits.

The application provides an electrolyte and a secondary battery, a battery module, a battery pack and a power utilization device, wherein the electrolyte comprises: a film-forming additive, the film-forming additive contains a nitrate group in a chemical structure. By adding the film-forming additive containing the nitrate group in the chemical structure in the electrolyte, the nitrate group with high reduction reaction activity can participate in the formation of a sodium ion solvation sheath layer, a sodium metal surface is formed to be rich in NaN x O y and Na3N, and an SEI layer with high conductivity and high mechanical strength, reducing or even avoiding the growth of sodium dendrites. At the same time, the nitrate group has the function of adjusting the sodium metal deposition morphology, which can further reduce or even avoid the formation of sodium dendrites.