The best period of general vegetable seedling, initial flowering or mid-late and post-experience period is the best period for spraying foliar fertilizer. It is better to spray on a cloudy or sunny day in the morning and evening. It should be avoided when spraying in the hot sun and spraying in time after the rain. The best dosage is 50-60 kg of fertilizer per acre, and the sprayer's atomization should be increased as much as possible. The entire plant sprays, the new leaves and leaves behind cannot be sprayed. It is advisable that the vegetables are sprayed 2-4 times throughout the growing season. The effect of top dressing on the best part of the leaf surface is related to the speed of movement of the sprayed elements in the plant. Nitrogen, phosphorus, potassium, and sodium are the most mobile elements, and all the elements that can move but are not strong are phosphorus. , Sulfur, etc. Some of the moving elements are iron, copper, manganese, molybdenum, and others. Fertilizers that do not move or have low mobility are better at spraying on new leaves. The best mixed spray of mixed spraying of various kinds of foliar fertilizers, or mixed spraying of fertilizers and pesticides, can play a role of a multi-effect spray, but when mixing spray should first understand the nature of fertilizer and pesticide properties. If the nature is opposite, never spray. When preparing the mixed solution, it must be mixed evenly, and it is ready for use. Normally, one kind of fertilizer is first formulated into an aqueous solution, and then the other fertilizer is directly added into the prepared fertilizer solution according to the amount, and the solution is sprayed after shaking. A type of Grinding Machine that grinds a workpiece plane or a profiled surface.The main types are horizontal axis rectangular table, horizontal axis round table, vertical axis rectangular table, vertical axis round table and various special surface grinders. Surface Grinder,Surface Grinding Machine,Grinding Machine,Surface Grinder For Sale,Application of Surface Grinder,Surface Grinding With Good Price Jiangsu Hoston Machine Tools Co., Ltd. , https://www.hosdunmachinetools.com
â‘ Horizontal axis table surface grinder
The workpiece is held by a rectangular electromagnetic table or clamped on the table and reciprocated longitudinally.
The wheel frame can be used for lateral intermittent feed movement along the dovetail guide of the slide. The sliding seat can be vertically intermittently fed along the guide rail of the column, and the workpiece is ground by the grinding wheel, and the grinding precision is high.
â‘¡ Vertical shaft round table surface grinder
The vertically mounted grinding wheel spindle grinds the workpiece with the grinding wheel end face, and the grinding wheel frame can perform intermittent vertical feeding movement along the guide rail of the column.
The workpiece is mounted on a rotating circular table for continuous grinding and high production efficiency.
In order to facilitate the loading and unloading of the workpiece, the circular table can also be moved longitudinally along the bed rail.
â‘¢ Horizontal axis round table surface grinder
Suitable for grinding round sheet workpieces, and can be used to tilt and grind round workpieces with different thickness.
â‘£ Vertical axis rectangular table surface grinder
Since the diameter of the grinding wheel is larger than the width of the table, the grinding area is large, which is suitable for efficient grinding.
⑤ Double end grinding machine
The two parallel planes of the workpiece are simultaneously ground by the grinding wheel end faces of the two grinding heads, and there are two types which are the horizontal shaft and the vertical shaft.
The workpiece is guided through the grinding wheel by a linear or rotary feeding device.
This type of grinding machine is highly efficient and is suitable for mass production of parts such as bearing rings and piston rings.
In addition, there are guide grinding machines for grinding the guide surface of machine tools, and special grinding machines for grinding turbine blade profiles.
Foliar Fertilization Puts "Five Best"
The best concentration of foliar fertilizer applied to grasp the best concentration, can achieve a multiplier effect. If the concentration is too high, it is prone to produce fertilizer or toxins; if the concentration is too low, the purpose of fertilization cannot be achieved. The optimum concentration of commonly used fertilizer is urea 0.5-1%, diammonium phosphate 0.2-1%, calcium chloride 0.3-0.5%, and zinc sulfate 0.05-0.2%.