756 results about "Trunk" patented technology

The invention relates to a 3+1 tree form of a pear tree and a shaping method thereof, belonging to the fields of pomology and fruit tree ecology. The tree form only has three main branches and a central trunk so as to be named as the 3+1 tree form. The tree form is small at the top and big at the bottom, thus branches on the upper part have small influences on the lower part, and the ventilation and light transmission conditions are good. Compared with a traditional small-crown sparse-layer pear tree form, the crown layer opening of the 3+1 tree form is improved by 14-18 percent; the fruit shape is big, and the quality is good; the content of a soluble solid state material in a fruit is improved by 0.8-1.2 percent compared with that in a small-crown sparse-layer fruit, and the high-quality fruit rate is higher than 90 percent; and the quality of fruits is good. The tree form has short and small crown and easy shaping, and the skeleton branch is directly connected with the branches, thus the tree form is convenient to manage and particularly suitable for Chinese pear varieties such as hosui pears, green-crown pears, yellow flower pears, Yuanhuang pears, Shingo pears, golden pears, and the like. The tree form is an ideal tree form for pear tree cultivation and has the characteristics of simplicity, convenience and easy application.

The invention relates to a cultivation method for pruning a fig to be in a line-shaped tree form, and belongs to the technical field of fruit tree pruning. The cultivation method for pruning the fig to be in an I-shaped tree form comprises the following steps that the land is leveled, and ridges are made; the reasonable plantation density is determined, wherein 1.5m of line spacing and 3m of row spacing are preferred; the height of a trunk is 10-20cm after plantation, and two strong branches or strong buds are selected and reserved to be cultivated into two principal branches in an upright luring mode; a frame suitable for energy-saving pruning is built, a cross arm with the length being 50cm and a cross arm with the length being 80cm are horizontally erected on a stand column with the height being 1.5m on the ground, bracing wires are arranged on the two sides of each cross arm in a pulling mode, a main bracing wire is arranged at the position with the height being 20cm on the trunk in a pulling mode, and a U-shaped small trellis surface is formed. A tree form obtained through the cultivation method for pruning the fig to be in the line-shaped tree form has the advantages of being simple and convenient to prune, fast in forming, early in fruit yielding, convenient to manage, saving in labor, good in ventilation and light transmitting condition and the like.

The invention discloses a method and a system of three-dimensional reconstruction of a shape structure of trees in a leaved state. The method comprises acquiring three-dimensional point cloud data of trees and carrying out preprocessing and simplifying processing to obtain simplified three-dimensional cloud data set of the trees, carrying out organ segmentation to the simplified three-dimensional point cloud data set of the trees to obtain the three-dimensional point cloud data of each organ, wherein the three-dimensional point cloud data of each organ comprise the three-dimensional point cloud data of a leaf organ, the three-dimensional point cloud data set of a main trunk, the three-dimensional point cloud data set of a main branch and the three-dimensional point cloud data set of a sprout, extracting the frameworks of limbs of the trees according to the three-dimensional point cloud data set of the main trunk, the three-dimensional point cloud data set of the main branch and the three-dimensional point cloud data set of the sprout and optimizing the frameworks of the limbs of the trees, carrying out meshing to the frameworks of the limbs of the trees to generate a three-dimensional mesh model of the limbs of the trees, classifying each limb of the frameworks of the limbs of the trees, and carrying out canopy three-dimensional reconstruction. The fast three-dimensional reconstruction of the shape structure of the trees in the leaved state is achieved, and therefore a method and a high-precision basic model support are provided for the structural analysis of the canopies of the trees, the evaluation of the physiological and ecological characteristics and the like.

The invention relates to a reshaping and cultivating method for a peach tree with a single trunk and two main branches. The reshaping and cultivating method specifically comprises the following steps: planting a plantlet at a 1.4m-1.6m position of the height of the trunk; selecting and remaining two strong branches or strong buds which are cultivated into two main branches reversely growing along the rows at a basal angle of 30 degrees; fixing the main braches on a horizontal shed frame when the main branches reach racking points, and inducing the extended branches of the main branches to an inducing rod which forms an 30-degree angle with the shed frame, wherein extended fruiting branch groups which are in parallel arranged and vertically extended into the rows are provided on the main branches; and gently and slowly pushing, binding and fixing the two main branches to the flat shed frame surface in autumn of the next year. The reshaping and cultivating method disclosed by the invention can be used for controlling the dryness advantages of the tree body, is quick in crown forming speed and capable of generally completing the crown structure cultivation 2 years after the planting to begin to enter into an initial fruiting period.

The invention relates to a forestation method for fighting drought and relates to the technical field of large-area tree planting. The method is characterized by including planting trees according to the environment, preparing soil in advance, foresting with container seedling, foresting through mulching, foresting through cutting trunks, soaking roots before planting, and tending managing. The method is clear and simple in step, easy in operation, quite convenient, reasonable, simple to implement, and good in implementation effect.