Appropriate application of nitrogen fertilizer celery requires a large amount of nitrogen fertilizer throughout the growth period. Topdressing should be based on ammonium bicarbonate, so that it can be applied in small amounts for several times, generally requiring 2 to 3 times of topdressing. However, it should be noted that celery should not be applied with urea. Because celery is applied with urea, the growth is slowed down, the cellulose is increased, the plants are easy to age, the quality is lowered, and the bitterness is consumed when eating. Therefore, celery should not be applied during the whole growth period. Urea.
After chasing organic fertilizer, the organic fertilizer that has been tanning and fully decomposed can improve the quality of celery. Note that no decomposed organic fertilizer can not be applied as a top dressing, so as not to cause burning roots. After the application of organic fertilizer, the stems of the plants are soft and strong, the fibers are reduced, and the quality and yield are greatly improved.
Supplementation of micro-fertilizer calcium deficiency can cause celery to "burn heart", and boron deficiency can cause physiological diseases such as celery hollow and petiole cracking. Foliar application of 0.5% calcium chloride or calcium nitrate solution can prevent celery from "burning heart"; to prevent celery hollow and petiole cracking, 0.5-0.75 kg of borax per acre, or 0.3% to 0.5% borax Solution foliar application.
Anodizing treatment is a surface finishing process for aluminum that forms a protective oxide layer on the surface of the metal. The process involves immersing the aluminum material in an electrolytic solution and passing an electric current through it. This creates a uniform and durable oxide coating that enhances the corrosion resistance and aesthetic appeal of the metal.
There are two main types of anodizing treatment: sulfuric acid anodizing and hard anodizing. Sulfuric acid anodizing is the most common type and produces a thinner, more decorative layer of oxide coating, while hard anodizing results in a thicker, harder, and corrosion-resistant layer that is ideal for industrial and automotive applications.
Anodizing treatment provides numerous benefits to aluminum products. It increases their resistance to corrosion and wear and tear, making them suitable for use in harsh environmental conditions. The process also enhances the strength and durability of the metal, extending its lifespan and reducing the need for maintenance.
Another advantage of anodizing treatment is its ability to add color and texture to aluminum products. Different dyes can be added to the electrolyte solution to produce a range of colors, from bright and vibrant to more subdued tones. Additionally, different textures and finishes can be achieved through specialized anodizing processes, such as matte anodizing or brushed anodizing.
Anodizing treatment is commonly used in various industries, including aerospace, automotive, construction, and consumer goods. It is an eco-friendly process as it uses no hazardous materials and produces minimal waste. However, it is important to note that anodizing treatment may affect the dimensional accuracy of the product and may mask defects that are present on the surface of the material.
Overall, anodizing treatment provides an effective way to enhance the functionality and appearance of aluminum products. As research and innovation continue to advance, even more advanced and innovative applications of anodized aluminum are expected to emerge.
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