Applying calcium fertilizer to prevent cabbage "dry heartburn"

During the Chinese cabbage filling period, the phenomenon of "dried heart" often occurs: the plants grow in a normal shape, the edges of the leaves are immersed in water and there is mucus, and then dehydration, wilting, and drying, and the mesophyll is translucent. Cabbage "Dry Heart" is a kind of physiological disease. The main cause is calcium deficiency. When the disease is severe, the leaf ball is hollow, which seriously affects its yield and quality. In addition to measures such as selecting disease-resistant varieties, reasonable watering, increasing organic fertilizer, timely sowing, and strengthening field management, the disease should be supplemented with calcium fertilizer. The specific method is:
First, 16% of calcium nitrate granules and 0.5% of boric acid bentonite granules are scattered into the center of Chinese cabbage cabbage.
Second, in the period of Chinese cabbage rosette period to Baoxin period foliar spray 0.7% calcium chloride solution, spray every 7 to 10 days 1, even spray 3 to 5 times.
Third, in the Chinese cabbage seedling stage, the rosette period, the core period of spraying respectively 0.7% calcium sulfate solution, spraying 50 kg per acre.
In addition, in order to prevent the spread of such diseases, the diseased plants should also be cleared in time.

Blended Powder

A blended powder of tungsten carbide and Metal Alloy Powder can be used for laser cladding, a process used to deposit a layer of material onto a substrate using a laser beam. This blended powder is typically used as a feedstock material for laser cladding applications where high wear resistance and hardness are required.

Tungsten carbide is a hard and wear-resistant material that is commonly used in cutting tools, mining equipment, and other high-wear applications. It has excellent thermal conductivity and high melting point, making it suitable for laser cladding processes.

Metal alloy powders, on the other hand, are often added to the Tungsten Carbide Powder to enhance certain properties or tailor the characteristics of the final cladding layer. These metal alloys can include nickel, cobalt, chromium, or other elements, depending on the specific requirements of the application.

The blended powder is typically prepared by mixing the tungsten carbide and metal alloy powders in the desired ratio. This mixture is then fed into a laser cladding system, where it is melted using a high-power laser beam. The molten powder is rapidly solidified onto the substrate, forming a dense and wear-resistant cladding layer.

The resulting cladding layer can have excellent hardness, wear resistance, and thermal conductivity, making it suitable for various applications such as tooling, wear parts, and surface protection. The specific properties of the cladding layer can be adjusted by varying the composition and ratio of the tungsten carbide and metal alloy powders in the blend.

Overall, the blended powder of tungsten carbide and metal alloy powder offers a versatile and customizable solution for laser cladding applications, providing enhanced wear resistance, hardness, and other desired properties to the final cladding layer.

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Luoyang Golden Egret Geotools Co., Ltd. , https://www.egretgeotools.com