Sweet potato and pepper intercropping is a combination of high yield, stable yield, high efficiency, and disaster resistance, and is widely promoted in the grain-producing areas. According to the research, the comprehensive utilization rate of these two crops is above 90%. Pepper can be extended to the garden in October. Sweet potatoes can also be harvested once in mid-October. Sweet potato and pepper intercropping can produce 1500-2000 mu per mu. Kilograms, pepper 2000 to 3000 kilograms, the total output value up to 5000 to 8,000 yuan.
Variety selection. Sweet potato is best to choose short vine cultivars, high-starch varieties YS86, YS13, middle vine-type Xiangcao 16, and yam-processed variety Xiangshu 15, etc. In recent years, it has also been popular to cultivate special sweet potato varieties such as fruit-type sweet potato varieties, or purple varieties of purple sweet potatoes. Pepper should use dry pepper varieties with compact plant types, concentrated results, consistent maturity, strong resistance, and high processing and utilization value. Xiangyan 19 and Ningjiao 5, which are suitable for storage and transport or suitable for love cultivation, can be used. No. and other pepper varieties.
Interplanting density. Using a 1.2-meter-wide sorghum sorghum, one row of peppers can be planted on each side of the sorghum and 1 row of sweet potatoes can be planted between two rows of chillies to form a ratio of 2:1. The spacing of the chillies is 62.5 cm with 2 per hole. Sweet potato spacing 125 cm, spacing 33 cm. Can also be made 1.86 meters wide arc sorghum, planted on each side of a line of pepper, the middle of the back line planted 2 lines of sweet potatoes, forming a 2:2 ratio, pepper spacing of 108 cm, 30 cm spacing, 2 per hole Sweet potato spacing 108 cm, spacing 33 cm.
Sweet potato planting. Sweet potato seedlings should be selected separately, usually in mid-March to early April, nursery, the use of tuberous asexual reproduction, seedling age of about 30 days, choose strong seedlings or potato vines in the upper segment as a cutting seedling transplanting, early October to mid-October Harvest in time.
Pepper planting. Hot peppers are generally used in greenhouses in late October to early November to sow seedlings in the cold bed, and to be used for seedling management such as heat preservation and antifreeze before winter, timely watering and top dressing after spring, cultivating strong seedlings, and adopting plastic film covering from late March to late April. Transplanting.
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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