![<?echo $_SERVER['SERVER_NAME'];?>](/template/twentyseventeen/skin/images/header.jpg)
Gold marble disease prevention and treatment methods:
The golden marble has few pests and diseases, mainly pests, and is usually washed by hand. Take prevention as the mainstay, and in March each year, each speed will be culled to prevent the damage of scale insects.
The gold marble is resistant to low temperature, but the activity needs to be high. The annual growth period is from April to November, and the temperature is between 28 and 33. The scope of C. The gold marbles grow slowly, and it is easy to maintain the proportion of the tree after molding, and it is not chaotic. During the cultivation period, it needs sufficient water and fertilizer, and the growth is fast. During the cultivation period, the water and fertilizer are sufficient and the strong leaves will be too large, and the shaping will enter the ornamental period. The control of water can reduce the leaves, while the whole tree picking leaves can promote the small leaves. When the basin is turned, the roots can be shaped to shape the leaves. The gold marbles are fertile, and once the spring is applied, the water and fertilizer are applied once, and the thin fertilizer is applied.
The ratio is: one part of fertilizer, 9-10 parts of water, no flowering, no days, no fertilization in winter, so that management can save more flowers and full of branches.
Reasonable pruning, improve ventilation and light transmission conditions; nitrogen, phosphorus and potassium fertilizers are reasonably matched to promote plant organs and are effective measures for controlling pests and diseases.
Focusing Lenses. The focusing lens is the last optic in the laser path, before it hits the workpiece. Its main role is to focus the laser beam to a specific focal length (FL) - depending on the application. Therefore, the focal length - that is dictated by the radiuses and curvatures of the lens - is its most important feature.Focusing the beam ,produces a focus of high energy density that processes the work piece Product characteristics: • High design accuracy, high precision machining, all systems have reached the diffraction limit •The focus is deep, good consistency across the focal depth range Plane-convex focusing lens is applied to CO2 laser. One side is flat and the other side is convex. The substrate is laser-grade CVD ZnSe and coated with the double-sided anti-reflective film. The convex surface should face the perpendicular incident light beam and the plane should face the workpiece. Meniscus focusing lens is concave and convex focusing lens. The substrate is laser grade CVD ZnSe and coated with the double-sided anti-reflective film. Meniscus focusing lens can effectively reduce spherical aberration and produce smaller light spot than plane-convex focusing lens. The convex surface should face the perpendicular incident light beam and the concave surface should face the workpiece.
Focusing Lens,Led Focusing Lens,Optical Focus Lens,Focus Glass Lens
Changchun Ruiqi Optoelectronics Co.,Ltd , https://www.ruiqi-optics.com