High-yield cultivation techniques of wax gourd in early spring in greenhouse

Winter melon hanging vine cultivation in greenhouse, not only listed early, but also early yield and total yield are higher. I. Varieties generally use Guangdong Province Qingpi wax gourd, Yichuanling No.4, etc. 2. Raising seedlings in early January by warming seedlings, using 8×8 cm plastic seedling pots. 1~2 days before sowing, seeds must be sun-dried, seeds soaked and disinfected, washed with water and placed at 30℃~32℃ for germination, generally 48 hours to germinate. The seedling pot is preheated on the seedbed before germination and watered one day before sowing. Sow one seed per pot, cover with 1.5 cm of nutrient soil, and then mulch the seedbed. The seedbed temperature shall be maintained at 28℃~30℃ in the daytime and 17℃~20℃ at night; the temperature shall be appropriately reduced after emergence to prevent the seedling from growing too long, 25℃ ~ 28 ℃ in the daytime and 15℃~18℃ at night; the seedling age shall be 35 days; the seedling shall be transplanted when 3 leaves and 1 core to 4 leaves and 1 core; the seedling shall be tempered by controlling water 5~7 days before planting; and the seedling shall be irrigated thoroughly one day before transplanting. 3. Planting in early February, fertilizing and soil preparation, applying decomposed high-quality organic fertilizer 2000 kg, oil cake 150~200 kg, urea 10 kg, potassium sulfate 15 kg per mu, deep ploughing and fine harrowing. The width of the ridge is 1.3 meters, the width of the ditch is 0.4 meters, and an irrigation ditch with a width of 0.2 meters and a depth of 0.5 meters is opened on the ridge surface. Small row spacing 0.6 m, plant spacing 0.4 m. When planting, irrigate enough water to fix roots and cover with plastic film the next day. 4. Field management after planting 1. Greenhouse temperature regulation One week after planting, the greenhouse temperature shall be maintained at 28℃~30℃ during the day and 18℃~20℃ at night; after seedling slowing, it shall be maintained at 25℃~28℃ during the day and 16℃~18℃ at night before flowering and melon setting; after fruit setting, the greenhouse temperature shall be maintained at 28℃~32℃ during the day and 15℃~18℃ at night. 2, to prevent fruit drop, melon and hanging melon shed early spring melon easy to drop fruit, can use Zhengzhou fruit research institute production of melon Ling treatment melon embryo. 1~2 days before the reserved female flower blooms, spray the melon embryo with 100~150 times solution of Zuogualing. When the young melon grows to 0.2 kg, one melon is selected from each plant. When the young melon grows to 0.5 kg, hang the melon with plastic rope. 3. Fertilizer and water management 5~7 days after planting, irrigate seedling slowing water in the dark ditch, apply vine extension fertilizer 15~20 kg urea per mu when the main vine grows to 6~8 unfolded leaves, and apply it with water. When the young melon grows to 0.3kg, apply 20kg urea fertilizer and 5~ 8kg potassium dihydrogen phosphate per mu, rinse with water, irrigate small water once after one week, and stop watering 5~7 days before harvest. Five, two crop melon management first crop melon harvest, the top of the female flowers left on the vine are generally removed. Fertilize and water immediately after harvest, and apply urea 20kg per mu. 7~10 days after the first crop is harvested, the female flowers with good growth and development on the seed vine are selected and treated with zuogualing. Generally, they can be harvested in 25 days. Six, pest control 1, disease control Common diseases are mainly powdery mildew and gray mold. Powdery mildew can be selected 20% triadimefon EC 2000 times solution, or 70% methyl tolide