First, Grafting In order to solve the problem of re-twisting, we adopted the method of grafting cultivation. The rootstock selected the special selected anvil and grafted by grafting. The "Sweet Resistant No. 3" seedling was relatively robust at seedling stage and was sown 7 days earlier. Scion 1 leaf 1 heart, rootstock cotyledons, grafting suitable period. First remove the growing point of the rootstock, and cut the blade down 0.5 centimeters below the cotyledon of the rootstock with a blade at an angle of 45 degrees along the hypocotyls, which is as deep as 2/5 to 1/2 of the diameter of the stem, in the same way in the cotyledons. Cut 1 knife from the lower 1cm to 45° angle, and 1/2~2/3 of the thickness of the stem is thick. Then insert the two incisions (insert each other), clip them with the clips, and plant them with nutrition. In the middle. The minimum night temperature within 1 to 3 days of grafting should not be lower than 16°C. The wounds will heal and survive in 7 to 10 days, cutting the root of the scion.
Second, grafted seedlings management
1. Early management of grafted seedlings 1 The cross-binding period of the healing tissue formation was 1 to 3 days after grafting. The bed temperature was controlled at 25°C to 28°C during the day and 20°C to 22°C at night, and maintained at 23°C during the day after 1 week. At 24 °C, the night temperature is maintained at 15 °C ~ 18 °C, and the soil temperature should be around 15 °C ~ 20 °C. 2 Within 2 to 3 days, the airtightness of the seal is not enough. The water droplets on the plastic arch are appropriate. After 3 days, a small amount of ventilation can be performed in the morning or evening. At this time, it is the healing period. Afterwards, the amount of ventilation and the duration of ventilation are gradually increased, but still It is high humidity and normal management after 1 week. After 33 days, the coverings were removed in the morning and evening and received weak and astigmatism. Thereafter, the lighting time was gradually increased. After 10 days, the covering was removed and normal seedling management resumed.
2. Grafting seedlings management 1 After the early morning at 8 o'clock in the morning, open two small sheds first, open the sides of the small arch sheds before and after noon, and gradually increase the amount of ventilation until the small sheds are removed 1 week before transplanting to reduce the temperature and humidity. Perform seedling exercise. After removing the small plastic shed, pour 1 water every 2 to 3 days. About 10 days before colonization, the small arch membrane was removed and normal light was applied. 2 The 4th true leaves of the grafted seedlings are planted. The seedlings can be planted in 35 to 40 days, and the seedlings can be cultivated at low temperature for 4 to 5 days before planting. The minimum temperature at night is 5°C.
3. Standard 1 for seedlings with robust grafting is 13 to 16 cm in height, short in internodes, and thick in stem (3 to 4 mm). 2 The diameter of the stem of the scion is 4 mm, and the healing tissue, ie the diameter of the pumpkin rootstock under the interface, reaches 5 mm. 3 Scion 4 true leaves with thick and dark leaves. The four roots were strong and numerous, with lateral roots developed (diameters above 1 mm) and white, with no rust and black roots. 5 Rootstocks and scions were about 35 days from emergence to colonization. To achieve the above criteria can be determined as strong seedlings.
Third, the management after planting
1. Using 3 or 4 vine pruning method using a single planting method, spacing 30 cm, row spacing: 80 cm. The use of 3 vine or 4 vine method for pruning, mainly Sun Man guagua. Pruning should be performed on a sunny morning. Generally, 1 melon needs 5 healthy leaves for nutrition, and the number of left leaves can be determined based on the number of melons left.
2. Artificially-assisted pollination Plastic greenhouses and greenhouse cultivation Winter, early spring temperatures are low, insects are not active, and artificial pollination is needed, preferably from 8 to 10 am.
3. Top dressing After 30 to 35 days, top dressing should be done. It is best to use cake as the main ingredient, 17 to 20 kg per mu. The hole was drilled 15 cm from the root of the plant, and the depth was about 10 cm. Fermented cake fertilizer and soybeans were applied into the hole and the soil was sealed after application.
4. Irrigation muskmelon more drought, but not too dry, after planting to the soil before flowering should maintain appropriate water, with 70% to 75% is appropriate, flowering fruit set period to minimize irrigation, so as to avoid excessive nutrition growth, fruit set rate decreased . 7 to 22 days after fruit set is the fruit enlargement period. 7 to 10 days before fruit ripening should be controlled irrigation, maintain appropriate soil moisture, help improve the quality of melon.
Second, grafted seedlings management
1. Early management of grafted seedlings 1 The cross-binding period of the healing tissue formation was 1 to 3 days after grafting. The bed temperature was controlled at 25°C to 28°C during the day and 20°C to 22°C at night, and maintained at 23°C during the day after 1 week. At 24 °C, the night temperature is maintained at 15 °C ~ 18 °C, and the soil temperature should be around 15 °C ~ 20 °C. 2 Within 2 to 3 days, the airtightness of the seal is not enough. The water droplets on the plastic arch are appropriate. After 3 days, a small amount of ventilation can be performed in the morning or evening. At this time, it is the healing period. Afterwards, the amount of ventilation and the duration of ventilation are gradually increased, but still It is high humidity and normal management after 1 week. After 33 days, the coverings were removed in the morning and evening and received weak and astigmatism. Thereafter, the lighting time was gradually increased. After 10 days, the covering was removed and normal seedling management resumed.
2. Grafting seedlings management 1 After the early morning at 8 o'clock in the morning, open two small sheds first, open the sides of the small arch sheds before and after noon, and gradually increase the amount of ventilation until the small sheds are removed 1 week before transplanting to reduce the temperature and humidity. Perform seedling exercise. After removing the small plastic shed, pour 1 water every 2 to 3 days. About 10 days before colonization, the small arch membrane was removed and normal light was applied. 2 The 4th true leaves of the grafted seedlings are planted. The seedlings can be planted in 35 to 40 days, and the seedlings can be cultivated at low temperature for 4 to 5 days before planting. The minimum temperature at night is 5°C.
3. Standard 1 for seedlings with robust grafting is 13 to 16 cm in height, short in internodes, and thick in stem (3 to 4 mm). 2 The diameter of the stem of the scion is 4 mm, and the healing tissue, ie the diameter of the pumpkin rootstock under the interface, reaches 5 mm. 3 Scion 4 true leaves with thick and dark leaves. The four roots were strong and numerous, with lateral roots developed (diameters above 1 mm) and white, with no rust and black roots. 5 Rootstocks and scions were about 35 days from emergence to colonization. To achieve the above criteria can be determined as strong seedlings.
Third, the management after planting
1. Using 3 or 4 vine pruning method using a single planting method, spacing 30 cm, row spacing: 80 cm. The use of 3 vine or 4 vine method for pruning, mainly Sun Man guagua. Pruning should be performed on a sunny morning. Generally, 1 melon needs 5 healthy leaves for nutrition, and the number of left leaves can be determined based on the number of melons left.
2. Artificially-assisted pollination Plastic greenhouses and greenhouse cultivation Winter, early spring temperatures are low, insects are not active, and artificial pollination is needed, preferably from 8 to 10 am.
3. Top dressing After 30 to 35 days, top dressing should be done. It is best to use cake as the main ingredient, 17 to 20 kg per mu. The hole was drilled 15 cm from the root of the plant, and the depth was about 10 cm. Fermented cake fertilizer and soybeans were applied into the hole and the soil was sealed after application.
4. Irrigation muskmelon more drought, but not too dry, after planting to the soil before flowering should maintain appropriate water, with 70% to 75% is appropriate, flowering fruit set period to minimize irrigation, so as to avoid excessive nutrition growth, fruit set rate decreased . 7 to 22 days after fruit set is the fruit enlargement period. 7 to 10 days before fruit ripening should be controlled irrigation, maintain appropriate soil moisture, help improve the quality of melon.