Greenhouse cucumber seedling grafting technology

Nutritional soil preparation

The fermented pig manure was sifted and sifted, and then mixed with the sifted soil in a ratio of 3:1 soil and fertilizer (5 m3 of nutritive soil for 80 m shed).

seedbed

From the second room into the greenhouse, two nursery beds measuring 5 meters long, 1.5 meters wide and 8 centimeters above the ground were set up. The 80m shed requires a total of 7 nursery beds.

seed

Cucumber seedlings were treated with 60 °C water. First pour the water into a clean container, and then put the seeds into the mix. When the water temperature drops to 25~30°C, remove it, put it in clean water to rub it, remove the slime of the seed shell, then use 30°C water. soak. Cucumber seeds are soaked for 4 hours before they are removed and wrapped in clean gauze. Then, the upper layer of small quilts is placed in the house during the day and can be placed in the greenhouse for germination at night. The temperature cannot exceed 35°C. Once the air is released once a day, the buds can be harvested after three days and the seeds can be sowed. Black seed squash seeds were soaked for 13 hours in addition to slime, which was removed by drying and sowing, without germination.

Nursery

Before sowing, the seedbeds were sprayed with water first, and cucumber seeds were sown on the first seedbed. It was necessary to dilute the seedlings as much as possible. In the second seedbed, the black squash seeds should be sown. After the next kind of cucumber seedbed soil 1 cm. Then use 800 times the enemy liquid to dip the cover soil thoroughly, and then on the seedling bed mulch, the incubation temperature during the shed should be controlled at 35 °C, cucumber seeding three days after the emergence of one-third, this time can be The mulching film was sprayed, and water was sprinkled according to the situation. The chlorothalonil, zeocin, and thiophanate-methyl were sprayed once every 4 days.

After 5 days, when the cucumber seedlings are out, the temperature in the shed should be controlled at 27°C during the day and 14°C at night. After sowing, the pumpkin seed bed is covered with 2 cm soil, and the cover soil is thoroughly stricken with 500 times the enemy liquid. Then the membrane is inserted into the bamboo arch. The temperature should be controlled at 35°C. After the seedlings are removed, the plastic film and bamboo arches are removed and 400 times methyl is used. Topoxine

spray. Pumpkin seedlings are generally sown 5 days later than cucumbers.

grafting

Grafting time should be mastered in the seedlings high 8 to 9 cm, pumpkin Miao leaves really show, when the first true leaves of cucumber seedlings when the first exhibition, grafting as soon as possible, generally used by the graft method, grafted cucumber seedlings spray one day before the drug. When grafting, the two seedlings were first removed from the seedbed, and the pumpkin seedlings were used as rootstocks. From the top of the cotyledon, the knife was placed at a 25-degree angle from top to bottom. The cutting was good and the grafting clip was clamped. Pumpkin seedlings should be placed outside the grafting clips.

Post-grafting management

The grafted seedlings were planted on the entire nursery bed at a spacing of 1010 cm. While planting the edge, the water was poured. Care should be taken not to spill water on the soil. The buried soil should be separated from the grafting clamp by about 2 cm. , cover film, arch temperature within 5 days should be maintained at 35 °C, 5 days after the day should be controlled at 27 °C, the night can not exceed 14 °C, after transplanting should pay attention to pull the straw at any time, adjust the light intensity in the greenhouse, each 6 days, spraying with chlorothalonil, dexamethasone, thiophanate-methyl 400 to 500 times once, 10 to 15 days after grafting, the cucumber seedlings were transplanted and pulled out 6 days after the root was cut off. At the same time, pay attention to changes in the seedlings, use straws to adjust the light intensity and temperature inside the shelter.

Colonization

The best time for colonization is when grafting 3 or 4 true leaves of cucumber seedlings. Planting, according to the spacing of 27 cm, a small row of 40 cm, 80 cm row spacing, ridge height 20 ~ 25 cm is appropriate. When planting, the first true leaf of the seedling shall be directed to the sun side, covered with a mulch after planting, and then poured with water for easing seedlings. The temperature within the shed within 5 days after planting shall not exceed 35°C. After 5 days, the maximum temperature in the shed shall not exceed 30°C, and the temperature shall be controlled below 13°C at night.

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