Cultivation Techniques of Squash in Sunshine Greenhouse

1, nursery. sterile seedling is the basis of high yield, the robust seedlings should be like these: seedling age is 30 to 35 calendar days, 8 ~ 10 cm in height, 0.5 to 0.6 cm in diameter, dark green color, the leaves is 13 to 15 cm in length, length of petiole is slightly shorter than the length of leaves.
(1) Sowing period. Squash is often supplied to the market before the Spring Festival. Therefore, the sowing time should be in October, and the harvest time is in the mid-January of the next year.
(2) Soaking seeds to germinate. Single out the immature seed floating on the surface of the water, and then soak the other seeds with 55 ℃ warm water for 10 minutes, and then with 20 to 25 ℃ water 3 to 4 hours, and accelerate the seeds to germinate in the circumstances of 25-28℃.
(3) Sowing. Use nutritional bowl to breed the seedlings, and use 10 cm x 10cm large bowl. Control the daytime temperature to be from 20 to 25 ℃, and 10 to 15 ℃ at night, when the temperature is higher than 25 ℃, it is necessary to promptly cool the seedbed to prevent the seedlings grow too vigorously.
(4) Grafting and breeding the seedlings. After grafting the plant is low-temperature-resistant, and stem is sturdy, internodes are short, leaves are thick and small, reproductive period is extended, and has high yields.
2, Fix planting. The suitable fix planting time is early and middle November. Apply manure 5000kg and loosen the soil and cover plastic membrane under the irrigation ditch to keep the temperature and water. (1) temperature. In order to increase the temperature, 3 to 5 days after the fix planting, maintain the daytime temperature at 25 to 30 ℃, and the night temperature at 14 to 15 ℃; The optimal temperature is 20 ~ 25 ℃in the daytime, and 10 to 13 ℃at night. Strengthen management to prevent hypothermia cold damage and ensure the normal growth of the plant
(2) fertilizer management. Maintain soil moisture and in cold season reduce the frequency of watering to prevent the temperature drop, prevent uneven fertilization.
(3) Hanging. 10 to 15 days after fix planting, when plant is with 7 to 10 leaves, use plastic rope to fasten the top. cut the aging leaves with a knife blade. Remove the collateral branches timely.
(4)Prevent flower and fruit drop. The squash relies on pollination by insects to make the male flower pollens arrive stigma. The life of pollen is relatively short. Therefore, the use of artificial pollination is important. The specific ways are like these: get male flowers, remove the petals, gently dither the male flowers to make the pollens adhesive to the stigma of female flowers. The pollens of a male flower can pollinate 3~4 female flowers. Use hormone is the best way to prevent flower and fruit drop.
4. Harvest
It can be harvested when the fruit weighs 250 to 300 g. Decide the proper harvest time according to the growth of plant, and early harvest should be necessary if the plant has infirm and weak growth. (Reproduced)