3 results about "Main branch" patented technology

The invention discloses a rapid cultivation method for Chinese rose landscape modelling. The method includes the steps of planting grafted seedlings or cutting seedlings in a cultivation container, and managing water and fertilizers in an initial planting stage; binding and sizing a modelling support on the top of the cultivation container after rust prevention of the modelling support; binding the main branches of limbing roses from bottom to top along the base of the modelling support, and according to 30-70 degrees of a lateral angle on the main branches, binding the main branches at the outer side of the modelling support; binding first-grade branches uniformly on the modelling support by a lateral angle of 30-70 degrees, and binding second-grade branches in the same 30-70 degree lateral mode; when the main braches, the first-grade branches and the second-grade branches of the limbing roses grow and are bound until the modelling support cannot be seen, obtaining the modelled Chinese rose landscape modelling. The method can promote bud germination, growth and flowering, not only the leaf coverage rate is high, the landscape modelling is complete, the seedling-planted rose modelling culture period is short, and the modelling can be formed in the current year, but also the formed modelling can be moved.

A DC circuit breaker is disclosed, the DC circuit breaker comprises n main branch circuits, a transfer current branch circuit, an energy dissipation branch circuit and 2n isolation units, the n main branch circuits are connected in parallel with each other, two ends of each main branch circuit are respectively connected with a transfer current branch circuit and an energy dissipation branch circuit through an isolation unit, the transfer current branch circuit is respectively connected in parallel with each main branch circuit, the energy dissipation branch circuit is connected in parallel with the transfer current branch circuit, and the system current flows through the n main branch circuits under the normal flow state; the transfer current branch circuit is not conducted; and the energydissipation branch circuit conduction threshold is higher than the system voltage, and no current flows through it. When one or more main branch circuits are short-circuited, the two isolation unitsof the main branch circuit are on, the main branch circuit is off, the transfer current branch circuit is on, and the fault current is quickly transferred to the transfer current branch circuit.

The invention relates to a yellow peach planting method. During the planting process, a crown is pruned into a horizontal three-fork-shaped tree body structure with one main branch and two side branches at two symmetrical sides of the main branch; and the side branches between every two adjacent plants correspond to the main branch. According to the planting method provided by the invention, through reasonably managing and pruning branches and leaves, fruit trees forming a forest are of horizontal three-fork-shaped tree body structures, and the side branches between every two adjacent plants correspond to the main branch, so that compared with an existing fruit-bearing forest structure, a plantation field is reasonably utilized, a larger lighting and forest operation space is formed, the field planting spacing can be shortened, the quantity of plants per mu can be increased by 30 to 50 percent compared with an existing planting method, and the acre yield is remarkably increased compared with the acre yield of the existing planting method. A fruit garden forming the forest is convenient to manage and beneficial to the launching of the work such as conventional nutrient and water management and pest control, so that the yield and the quality of yellow peaches are improved, and the aims of high yield and high quality can be continuously maintained.