41results about How to "Easy to cause waste" patented technology

The invention relates to a preparation method of a pressure-sensitive adhesive, and particularly relates to a preparation method of a solvent-free ultraviolet-curable organosilicone-modified pressure-sensitive adhesive. The method comprises the steps of: preparation of an organosilicone-modified polyurethane acrylate prepolymer and preparation of the pressure-sensitive adhesive. The pressure-sensitive adhesive is free of any organic solvents, and can be coated at normal temperature, dried without heating and rapidly cross-linked and cured.

The present invention relates to a comprehensive extraction method for platycodin and platycodon grandiflorum polysaccharide. According to the method, platycodon grandiflorum is sequentially subjected to treatments of beating, ultrasonic extraction, filtration, and centrifugation; the resulting clarified solution is subjected to ultrafiltration; the resulting supernatant is subjected to ultrafiltration by a ultrafiltration device to obtain a permeating solution and a retention solution; the permeating solution is loaded on macroporous resin, and an elution treatment is performed by ethanol; the resulting eluent is subjected to vacuum concentration and drying to obtain the platycodin powder; the retention solution is subjected to vacuum concentration, then ethanol is added to the resulting concentrated solution; treatments of standing, precipitation collecting, water reconstituting, freeze drying are performed to obtain the platycodon grandiflorum polysaccharide powder. With the present invention, the yield of the method is high, the comprehensive utilization of the raw materials is achieved, and the cost is low.

The invention discloses a splicing seedling tray which is formed by splicing a plurality of same unit components, wherein each unit component is composed of 6-10 sets of tray holes; each set of tray holes comprises one tray hole with 4-8 bulges at the edge and one tray hole with 4-8 grooves at the edge; two tray holes are connected with each other through a reinforcing rib; the upper parts of the tray holes are connected and formed into a unit component panel. The splicing seedling tray provided by the invention has a splicing structure; in a seedling taking process, the connected unit components are separated from each other and the elastic sheets in the tray holes are used for separating the seedling matrix and the seedlings from the tray; the complete bowl formed by roots and matrix is ensured; no any damage is brought to the root systems of the seedlings; the seedling-taking working efficiency can be increased.

The invention discloses a method of planting apple trees on a mountain slope. The method comprises the first step of preparation before planting, the second step of planting, wherein apple tree seedlings are sequentially planted in different cement frame sets from bottom to top along the mountain slope according to successively increasing heights, and the third step of fertilization, wherein one month after the apple trees are planted, a plurality of spherical gelatin sponges are placed nearby roots of each apple tree seedling. According to the method, the mountain slope with the gradient between 40 degrees and 50 degrees and the orientation to the south is selected, the apple tree seedlings with different heights are sequentially planted in different cement frame sets from bottom to top along the mountain slope according to successively increasing heights, the apple tree seedlings are distributed in a step shape, it is guaranteed that all the apple tree seedlings can enjoy sunlight within the maximum range, sunlight exposure is more sufficient, the sweetness of apples is improved, and the problem that the quality of apples is lowered because leaves on the lower sides of the apple trees cannot be exposed to sunlight and illumination is uneven when the apple trees are planted on flat land is avoided; moreover, when the apple trees are planted on the mountain slope, the stability of the mountain slope can also be improved.

The invention provides a method for planting orange trees on a mountain slope. The method comprises the following steps of (1) preparation before plantation, (2) plantation, including planting orange tree seedlings in different cement frameworks along the mountain slope from the bottom to the top according to an order of orderly increased height, and (3) fertilizer application, including placing a plurality of spherical gelatine sponge surrounding a root of each orange tree. The mountain slope is sunward with gradient from 37 to 45 degrees; the orange tree seedlings with various heights are orderly planted in different cement frameworks from the bottom to the top along the mountain slope according to the order of increased height; the orange tree seedlings can be distributed in a step shape and sunlight is ensured for orange tree seedlings to the largest extent; with adquate sunniness, orange sweetness can be increased; a problem of low quality of oranges due to uneven sunlight when orange trees are planted on the flat land and leaves of the lower side of the orange trees cannot be illuminated; and mountain slope stability can be enhanced with the orange trees planted on the mountain slope.