1. Symptoms. Boron deficiency is mainly characterized by stiff and fragile stems and leaves, blocked growth of the parietal lobe, outward curling of the leaves, deformity, widening and thickening of the midrib of the leaves, yellowing from the lower leaves, yellow-brown plaques outside the stems, and intermittent internal Holes, the inside of the severe flower stems are brown and rot, resulting in hollow pulp (pictured); the roots are short and thick, and the growth is poor; the flower head is small, showing yellow-brown spots, and severe inflorescences die.
2. Prevention methods. (1) Add organic fertilizer. Organic fertilizer can fertilize the soil, enhance soil water retention capacity, promote root development, and promote the absorption of boron by plants. It also contains the medium and trace elements needed for the growth and development of cauliflower. (2) Soil application of boron fertilizer. Before the cauliflower planting, combined with the application of organic fertilizer, apply 0.5~1 kg of borax per acre, mix well with organic fertilizer, or mix well with 5-10 kg of fine dry soil, sprinkle it on the ground and turn it into the ground to avoid uneven application of boron fertilizer. Causes excessive local boron damage. (3) Reasonable irrigation. During the growth of cauliflower, water is properly watered to ensure a balanced supply of water and prevent soil drought or excessive moisture, so as not to affect the absorption of boron by roots. (4) Foliar spray of boron. If improper management measures are taken in the early stage, if there is a symptom of boron deficiency during the growth of cauliflower, spray 0.1% to 0.2% borax solution on the foliar surface, spray once every 7 to 10 days, and spray 2 to 3 times.
Lathe And Milling Processing Parts
Lathe and milling processing parts refer to precision metal parts that are manufactured using lathe and milling machines. These machines use computer numerical control (CNC) to produce parts to exacting specifications with high accuracy and precision.
Lathe machines are used to produce parts that have a cylindrical shape, while milling machines are used to produce parts with complex shapes and irregular surfaces. The combination of these two machining processes allows for the creation of parts with different shapes, sizes, and complexities.
Lathe and milling processing parts are used in a wide range of industries, including aerospace, automotive, electronics, and medical. These parts are typically produced from a variety of metals, including steel, aluminum, brass, and copper.
The advantages of lathe and milling processing parts are their high accuracy and precision. The CNC machines used in their production are programmed to make precise cuts and movements, resulting in parts that are consistent and accurate. This is especially beneficial in industries where quality control is essential for safety and reliability.
Another benefit of lathe and milling processing parts is their versatility. The combination of the two machining processes allows for the creation of a wide range of parts with complex shapes and irregular surfaces. These parts can also be produced in large quantities, allowing for efficient mass production.
Lathe and milling processing parts provide a cost-effective solution for many manufacturing needs. The precision of these machines means that parts can be manufactured to exact specifications, minimizing the need for additional processing or finishing. This can result in significant cost savings for manufacturers and ultimately lower prices for consumers.
In conclusion, lathe and milling processing parts are essential components in the manufacturing industry. These precision parts provide accuracy, versatility, and cost-effectiveness for a wide range of applications. With the ability to produce parts with high accuracy and precision, lathe and milling processing parts offer a powerful solution for many manufacturing needs.
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