Fruit cucumber is an excellent variety of cucumber. In recent years, off-season cultivation in greenhouse has increased year by year, with significant benefits. Now let's introduce the cultivation techniques of spring fruit and cucumber in greenhouse.
Fruit cucumbers generally choose varieties that are resistant to low light, low temperature, and disease.
Soak cucumber seeds in warm water at 55-60 ℃ for 5-10 minutes, let the water temperature naturally decrease to 25-30 ℃, and then soak for 6-8 hours. Remove and drain excess water, and place them in a 28 ℃ germination box for 24 hours. If more than 70% of the seeds are exposed, they can be sown. Spread the exposed seeds horizontally in the middle of the seed hole, cover them with a layer of vermiculite after sowing, water thoroughly, and then cover them with a layer of white plastic film.
Once the seeds sprout, immediately remove the covered white ground film, control the moisture appropriately, keep the substrate moist, and use the surface drying as the standard for watering. Once the cotyledons are flattened, nutrient solution can be applied.
Fruit cucumbers are suitable for wide ridge planting. Before planting, they should be ridged and furrowed 5-7 days, leaving sufficient time for the greenhouse to increase soil temperature. Hang a thermometer inside the greenhouse, insert one thermometer at 10cm inside the ridge, and use a sealed greenhouse to raise the temperature. Check the temperature changes in the greenhouse before direct sunlight in the morning after 3-5 days. Generally, the ground temperature below 10cm should not be lower than 15 ℃.
The plant enters the rapid growth stage, with the highest temperature controlled at 28-30 ℃ during the day and 15-18 ℃ at night. When the plant grows to 30cm, start hanging the rope and use a hanging clamp to hang the vine. When the plant grows to more than 10 leaves, it begins to bear fruit. It is necessary to clean the old leaves in the lower part in a timely manner and fertilize them well. The full fruit period lasts for 100-120 days. The high temperature in summer is not suitable for the continuous growth of cucumber in solar greenhouses, and the vine is too long and the root system is aging, which is not conducive to nutrient absorption and transportation. The yield and quality of cucumber gradually decrease. According to the actual situation, it is appropriate to pull seedlings and switch crops.