Fruit-type cucumber is a fresh cucumber that has been popularized in recent years. It is compact and short-sized, has no thorns and easy cleansing, is crispy in taste, and has a strong flavor. Its nutrient content is significantly higher than that of ordinary cucumbers. It is popular among hotels, restaurants, and consumers. It is very developed. future.
Selection of improved varieties: "Sweet Crispy Green No.6", "Spring No. 2", "Dai Duo Xing" and other varieties should be selected, and 50-70 grams per mu should be used.
The requirements for environmental conditions: thermophilic cold-resistant, the most suitable growth temperature during the day is 25-30 °C, 15-18 °C at night; thermophilic fear of paralysis, requiring higher air humidity and soil moisture, avoiding wet and cold combined Environment; suitable for soil depth, loose and fertile soil conditions, the amount of fertilizer required, combined with appropriate application of nitrogen, phosphorus, potassium, trace elements; need strong light conditions, suitable for planting in protected areas.
Cultivation season: autumn and winter wolfberry: 8-9 month nursery, 9-10 month planting, October-February harvested in February; Spring wolfberry: 1-2 months nursery, 2-3 years of planting, 3-7 month harvest.
Cultivate strong seedlings: soak in seeds with 55°C warm soup, use peat as substrate, and nurse seedlings with nutrients. After germination, treat at 24-2°C for freezing and low-temperature treatment for 24-48 hours, then adjust the temperature at 25-30°C to maintain Strong light, seedling age 25-35 days, when the clover is at one heart, it reaches the criteria of hypertrophy of cotyledon, dark green leaves, well-developed root system and no pests and diseases.
Fertilization and soil preparation: Apply crushed organic fertilizer over 3,000 kg per acre, or 400 kg of active organic fertilizer, plow depth of 25 cm, turning 2-3 times, so that the fertilizer and soil are mixed, and the crushed waste is broken to meet the requirement of looseness and smoothness. Made of Yangshuo 20-30 cm above the ground, covered with plastic film, try to install drip irrigation facilities.
Colonization: Planting temperature above 15°C can be planted, with a spacing of 90-100 cm, 1.8-1.9 m, planting in two rows, or single planting. Plant spacing 35-40 cm, 1700-2000 strains per acre. Choose to plant in the sunny, not too deep, with a flat surface and flat surface is appropriate.
Field management: (1) Watering: seedlings are regenerated 5-7 days after seedling growth, promote root growth, and then watered with small water, often to keep the soil moist; (2) Top dressing: every 10-15 days after harvesting melon Organic fertilizer, 100 kilograms per acre, foliar application of 3-4 times potassium dihydrogen phosphate; (3) Plant adjustment: from the beginning of the sixth quarter to stay melon, 1-5 melons early sparse, not inserted, with Rope hanging vines to fix the plant, the middle of each section can be left 1-2 melons, branches can stay after a melon and top. When the plant is too high, lower the old leaves and drop the wire rod and sit down. (4) Adjust the temperature: Strengthen the ventilation: daytime 25-30 °C, night 15-18 °C, ground temperature 21 °C, increase the greenhouse light transmittance in winter.
Timely harvest: 13-18 cm in length and 2-3 cm in diameter. When the flowers have begun to be harvested, they can be harvested. Use a pair of scissors or a knife to cut the cucurbits and gently handle them. The weight of a single melon is about 80 grams, and each plant can produce 20-30 pieces and the per mu yield is 3000-4000 kg.
Iris recognition technology is based on the iris in the eye for identity recognition, applied to security equipment (such as access control, etc.), as well as places with high security requirements.
Iris recognition technology is based on the iris in the eye for identity recognition, applied to security equipment (such as access control, etc.), as well as places with high security requirements.
The appearance of the human eye is made up of the sclera, iris and pupil. The sclera, the white outer part of the eye, makes up about 30 percent of the total area; The eye center is the pupil part, accounting for about 5%; The iris, located between the sclera and the pupil, contains the most textural information, accounting for 65%. In appearance, it is one of the most unique structures in the human body, consisting of many glandular pits, folds and pigmentation spots. The formation of iris is determined by genetic genes, and the expression of human genes determines the morphology, physiology, color and overall appearance of iris. By about eight months of human development, the iris has basically developed to a sufficient size and entered a relatively stable period. The appearance of the iris remains unchanged for decades, except for rare abnormalities or major physical or mental trauma that may alter its appearance. The iris, on the other hand, is externally visible, but at the same time internal, behind the cornea. To change the appearance of the iris requires very delicate surgery and risks vision damage. Iris can be used as the material basis for identity identification because of its high uniqueness, stabilit
Iris recognition technology is widely regarded as the most promising biometric authentication technology in the 21st century, and the future application of security, national defense, e-commerce and other fields will inevitably focus on iris recognition technology. This trend has gradually begun to emerge in various applications around the world, and the market application prospect is very broad.
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