In the mushroom production process, generally after three harvests, the nutrient content of the culture material decreases, the acidity rises, mycelium vitality weakens, and the yield and quality decrease. To achieve the high quality and yield of mushrooms, it is necessary to make supplements. Specific methods are as follows:
1. Take decomposed pigs and cow urine and boil for 20 minutes. After filtering, spray 10 to 20 times of clean water, and then spray with clean water once.
2. Take cooked and dried hay, plus 100 times the water into a liquid juice, to be sprayed after cold, mushrooms can be robust.
3. When the yield of mushrooms is drastically reduced, the bed surface is cleared, after the old roots and dead mushrooms are removed, the fresh dry pig manure and cow dung are crushed, soaked in lime water for 15 days, and then added to account for one third of the weight of the manure. Fertilizer and a small amount of plant ash are mixed well, spread it on the bed, and continue to manage as usual.
4. Take 2.5 kg of plant ash, add 50 kg of water to soak, take the filtrate and spray it, make mushroom strong, and prevent mushroom redness.
5. Take 0.5 kg of glucose, add 50 kg of water, and spray it after melting to make it thick and thick. If no glucose is available, white sugar can be used instead.
6. Take 250 grams of salt, add 50 kilograms of water, spraying at the peak of the mushroom, can make the mushroom body white and sturdy.
7. Take 0.5 kg of lime, add 50 kg of water and stand still. Take the clear liquid and spray it. Then spray it with clean water once. Repeat every 6 days to 7 days to adjust the pH of the culture materials and soil to promote the normal growth of the mushrooms.
Medical ultrasound (also known as diagnostic sonography or ultrasonography) is a diagnostic imaging technique based on the application of ultrasound. It is used to create an image of internal body structures such as tendons, muscles, joints, blood vessels, and internal organs. Its aim is often to find a source of a disease or to exclude pathology. The practice of examining pregnant women using ultrasound is called obstetric ultrasound, and was an early development and application of clinical ultrasonography.
Ultrasound are sound waves with frequencies which are higher than those audible to humans (>20,000 Hz). Ultrasonic images, also known as sonograms, are made by sending pulses of ultrasound into tissue using a probe. The ultrasound pulses echo off tissues with different reflection properties and are recorded and displayed as an image.
Many different types of images can be formed. The most common is a B-mode image (Brightness), which displays the acoustic impedance of a two-dimensional cross-section of tissue. Other types can display blood flow, motion of tissue over time, the location of blood, the presence of specific molecules, the stiffness of tissue, or the anatomy of a three-dimensional region.
Compared to other dominant methods of medical imaging, ultrasound has several advantages. It provides images in real-time and is portable and can be brought to the bedside. It is substantially lower in cost than other imaging modalities and does not use harmful ionizing radiation. Drawbacks include various limits on its field of view, such as the need for patient cooperation, dependence on physique, difficulty imaging structures behind bone and air or gases,[note 1] and the necessity of a skilled operator, usually a trained professional.
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