The greenhouse cucumbers in autumn and winter and early spring have a low risk of cultivation and high efficiency. The varieties they require are not only resistant to low temperature, low light, and disease resistance, but also have certain heat resistance. The currently used species of the spiky thorns are poor in disease resistance and quality, and the varieties are degraded and mixed seriously. To this end, the Tianjin Kerun Cucumber Research Institute developed a hybrid generation cucumber variety Jinyou No. 5 in 2000 and was approved by the Tianjin Crop Variety Approval Committee in March 2000. In recent years, Jinyou 5 has been extensively promoted in Tianjin, Hebei, Liaoning, Shandong, Henan and other places, and has been welcomed by vegetable farmers. Jinyou No.5 cucumber has strong growth potential, thick stems and medium branching. It is mainly dominated by vine berry, with dense melons, many melons, strong parthenocarpy, high yield, and 667 square meters of planting in early spring. 6000 kg, planting 5000 kg in autumn and winter. The melon strip grows fast, from flowering to harvesting 3 to 4 days earlier than the Changchun Mito, and from early to spring planting to harvest 65 to 70 days with good precocity. Melon stick-shaped, dark green, shiny, nodule obvious, white thorn, short, good merchandise, waist melon 35 cm long, single melon weight 200 grams. Resistance to downy mildew, powdery mildew, and blight. Night temperature 10 ~ 13 °C and low light conditions can grow normally. Jinyou No. 5 was planted in the greenhouse in early spring, and the average early production increased by 32.4% compared with the control Changchun Mist, and the total output increased by 26.5%. The variety is suitable for early spring and autumn and winter sun cultivation in the greenhouse. Jinyou No. 5 early spring cultivation techniques have the following aspects: 1. Sowing seedlings: appropriate sowing, cultivation seedlings. Planting in early spring is generally planted at the beginning of December and the seedling age is 35 to 40 days. Grafting techniques can be used to develop the root system. Nursery beds should be filled with bottom water, and the planted greenhouse should be cultivated appropriately. 2. Colonization: Prior to sowing and planting, the surrounding environment should be disinfected to kill germs and pests. Sulfur is generally used for the shed, and chlorothalonil aerosols can also be used for greenhouse disinfection. Apply enough base fertilizer before sowing and planting. 10 cm soil temperature stability above 10 °C can be planted, 667 square meters seedling 3800 strains. 3. Field management: 1 lighting management. Improve light transmission and keep the film clean. Timely uncovering the drapes and quilts, as soon as possible, without delaying the room temperature, cover the late cover as early as possible. On cloudy days, we must also open the straw curtain to increase the scattering of light in the room. A reflective screen (aluminum film) is hung on the back wall of the greenhouse, and light intensity of 40% can be increased within 1 meter in front of the curtain on a sunny day. 2 temperature management. After easing the seedlings, the temperature should be maintained at 25-30°C during the melon period, and 13-15°C at night; the melon period is generally from late March to late May. During this period, it is 25-30°C during the day, exceeding 30°C. Exhale and keep 14-15 °C at night. The cloudy sky is weak and the room temperature is 2~3°C lower than the sunny day. 3 fertilizer and water management. Slow seedlings generally do not water, be careful when the leaves start to grow timely watering, and with the water to promote Miao Fei 1 per 667 square meters of ammonium nitrate 5 kg. After roots sit, increase the amount of fertilizer. In order to keep the soil moist during the harvest period, we should pour water once every 4 to 5 days and master the “three quick†principle of fast watering, fast fertilization and quick picking. Root melon should be harvested early so as not to fall down; commodity melon should be harvested in time to increase the yield in the later period. 4. Disease and Pest Control: Although Jinyou No. 5 has strong disease resistance, it should also pay attention to the prevention of diseases such as sclerotia and root rot as well as pests such as aphids and mites during planting. In the early spring, greenhouse cultivation should pay attention to ventilation and humidity. Overcast and rainy days, we will strengthen chemical control and ensure high yield and quality of cucumber.
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