Cucumber graft climbing management requires more

As we all know, the advantage of cucumber grafting is very obvious. It is not only highly resistant to wilt disease and other soil-borne diseases, but also has a strong root system, low temperature resistance, low light resistance, and significantly enhanced stress tolerance. Due to the developed root system of rootstocks, strong water-absorption and absorptive capacity, and robust plant growth, the growth period can be extended for several months. The growth period of cucumbers in sunlight greenhouses can reach 9-10 months, and the overwintering sunshine greenhouse production can generally reach over 15,000 kg.

First, the selection of rootstocks and grafted varieties. The rootstock is currently dominated by white-skinned squash, and the survival rate of grafting is high. New sagazu and other pumpkin seeds are good, and ordinary pumpkin seeds can also be used for grafting. Cucumber varieties are selected for low temperature resistance, low light resistance, high resistance to downy mildew, strong ability to continuously stand melons, 30 cm long melons, and high, short-stemmed, non-yellow, high-yield varieties. Currently, they are mainly Jinyan, Jinchun, and Jinyou. Series, as well as Ningyang, Shinkansen, winter shed series.

Second, the setting of the seedbed. Late autumn or grafting cucumbers over winter, seedbeds should be located in greenhouses or greenhouses. Set seedbeds are generally three types, namely cucumber seedbeds, rootstock seedbeds, and grafted seedbeds. The size of the seedbed should be determined according to the amount of seedlings used. The length is 10 meters and the width is 1.5 meters. For example, 2500 trees per acre and more than 3,000 seedlings should be prepared. For example, the spacing of the pumpkin seedlings is 3 cm 3 cm, and 6000 seedlings can be sown on the pumpkin seed bed. Cucumber seedling spacing is 6 cm 6 cm, you can sow 4100 seedlings. Grafting seedbed spacing 7 cm 7 cm, you can sow 3060 seedlings. The principle of determining the row spacing is that the cucumber is thin and the pumpkin is dense, so that the stem diameters of the two crops are close to each other, which is favorable for grafting survival. The proportion of seedbed soil is: 5 non-disease soils, 3 high-quality pig fat, 2 parts of peat or cattle horse manure, fine sieving, 1 kg of three-element compound fertilizer per 100 kg of seedbed soil, and decomposition of chicken and duck droppings. 5 kilograms, 1 kilogram of lime powder, 25 grams of fine arsenic, Mn-Zn, and one half of mixed nails. Mix and lay the seedbed. Then immerse the water for broadcast.

Third, sowing date and sowing. The autumn delay will be delayed in late August and winter will be sown in early October. Before sowing, it is necessary to dry the seeds for 1-2 days, soak in the 55-degree warm soup for 25 minutes, then soak for 4-8 hours, and then germinate without direct germination. The seeds can be directly seeded with the Shilok seed, and 5 ml can be mixed with 0.2 kg of seeds to prevent seedlings. Period disease effect is good. Cucumbers should be sown 2-3 days in advance. The nursery should be lined with 66 lines. Each box should be sown with 1 cm of soil and properly sprayed with fungicides and insecticides to prevent seedling diseases and earthworms such as earthworms and cockroaches. 2-3 days after the broadcast pumpkin species, according to 55 crossed the seedbed, the specific operation with cucumber sowing.

Fourth, preparation before grafting. When the cucumber seedlings grow to about 10 cm and the pumpkin seedlings grow to 8-9 cm in height, it is a good time for grafting. The day before grafting, all preparations must be done. In order to finish the day, 5-6 people are required to prepare buckets, washbasins, shovels, shovels, blades, grafting clips, bamboo sticks, and disinfectants. Grafting seedbed also prepared 2.5 meters long bamboo batch 20, 0.08 mm thick EVA plastic film about 18 meters to prepare for a small arch shed. Shade nets are also essential.

V. Grafting technology. Use the docking method. Before the grafting, the nursery should be flooded with water once. After the water seeps, excavate the seedlings, rinse the roots of the soil, and try to protect the roots of the two seedlings. Use a knife at the side of the cucumber cotyledons at 1-1.5 cm to form a 45-degree angle. The horns are chamfered from the bottom up and the depth of the chamfer is preferably two-thirds of the stem diameter. The pumpkin seedlings are to be cut 0.5 to 1 centimeters from the side of the cotyledon, obliquely cut at an angle of 45 degrees from top to bottom, and the depth is also two-thirds of the diameter of the stem. Then, the incision is aligned with the incision and the cucumber pods are hung on the squash incision. The cucumber cotyledons and the pumpkin cotyledons are in a + character, and then they are vertically clamped with a graft clip. Then use a bamboo stick to remove the growing point of the pumpkin (retain the cotyledons and remove the rest). Well-matched seedlings should be planted immediately on grafted seedbeds, and the roots of both seedlings must be buried in the soil. The seedbed should be filled with water in advance and planted according to a 7 cm 7 cm row spacing. With the cover film and the shade net, when grafting, the grafted seedlings must not see the wind, see the light, or see the water, otherwise it will affect the survival rate. It is best to let experienced people help when grafting. It is easy to learn how to teach it.

Six, grafted seedlings management. The management points of grafted seedlings are: shading, moisturizing, sheltering, and warming. Within two days grafted seedlings could not see light and could not be ventilated. After two days, scattered light can be properly seen, and small winds should be properly dispersed. After 5 days, shades were properly shaded before and after noon, and most of the time was to see the light. In order to promote wound healing, the temperature should be properly increased, during the day should be about 32 degrees, about 22 degrees at night, can be maintained for 3 days, after the gradual ventilation and hardening seedlings to prevent leggy. In the two days after grafting, spraying a drug to control downy mildew and bacterial diseases, such as 600 times more than Dakkonen plus 600 times the copper, spraying twice before transplanting is appropriate. Ten days after grafting, they can be transplanted to the field. The root cutting time of cucumber is 3-5 days after field planting, and do not damage or cut cucumber roots before.


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