In the fast-growing period of the winter greenhouse, the leaves should be picked properly and the flowers and melons should be thinned to ensure strong growth and high yields.
Before soil preparation, apply organic fertilizer to improve the soil. In the fertile soil, increase the base fertilizer by 3000 kg per mu, in the medium fertility soil, apply the base fertilizer 4000 kg per mu, and in the lower fertility soil, apply the base fertilizer 5000 kg per mu. After fertilizing, plow the soil and mix the fertility into the soil.
Because the ground temperature is relatively low at this time, in order to ensure the ground temperature and increase the temperature for normal growth of the Fatton, a layer of mulch must be covered on the border surface before planting. Pay attention to the weather forecast before planting, preferably in a cold air process. Planting in the past tense, this is called "cold tail warm head".
Choose "cold tail and warm head" for planting, and the ground temperature will gradually increase after planting, which is conducive to the survival of transplanted seedlings. For planting, choose a sunny morning. On the day of planting, make a planting hole in the border. The planting hole should not be planted early, otherwise The water in the soil will be lost. The planting distance between the two planting pits is about 40 cm. After the planting pits are set, the soil with the seedlings is taken out of the seedling tray and put into the planting pits together. After the soil is covered, the planting is completed. The planting row spacing is 80 cm.
As the plants continue to grow, the leaves gradually increase, which is easy to cause field canopy, poor ventilation and light transmission, and it is difficult for the lower leaves to see light for photosynthesis. Especially in the late winter, the temperature in the shed is low, the humidity is high, and there are many pathogenic bacteria. In addition, the lower leaves are easily injured and broken after spraying, picking melons, etc., which can easily lead to diseases. Therefore, it is very necessary for Fatong to pick leaves reasonably and improve ventilation and light transmission.
Picking leaves should depend on the growth of the plant. If the growth is vigorous, you can pick more leaves, and if the growth is weak, you should pick less, so as to ensure good ventilation and light transmission in the field. In order to prevent the stalks from being difficult to heal after being injured, it is recommended that vegetable growers only remove the leaves and not the stalks. Because the petiole is thick and brittle, the leaves are removed from the base, and the stems are prone to large wounds, which are not easy to heal. The leaves can be removed in whole or in most parts, which can promote the petioles to dry and fall off more quickly. In addition, it should be noted that it is best to have a few consecutive sunny days when removing the leaves, so that the environment在小屋t相对干燥,不容易o be infected with diseases. After picking leaves, vegetable farmers can spray 4000 times streptomycin or 600 times garinone to prevent disease infection in advance.
Excessive female flowers must be thinned out early to reduce nutritional competition and promote melon sitting. The number of female flowers to be removed should be determined based on the growth of the melon seedlings. Those with weak growth should remove the root melon first, and then leave one female flower every three knots; if the seedling grows vigorously, the root melon can be left, but it should be harvested as soon as possible, and one female flower will be left every two knots thereafter.
It is easy to cause field canopy, poor ventilation and light transmission, and it is difficult for the lower leaves to see light for photosynthesis. On the contrary, because of high humidity, it is easy to infect pathogens and cause disease outbreaks. Especially in the deep winter, the temperature in the shed is low, the humidity is high, and there are many pathogenic bacteria. In addition, the lower leaves are easily injured and broken during spraying, picking melons, etc., which are more likely to cause diseases. Therefore, it is very necessary for Fatong to pick the leaves reasonably and improve the ventilation and light transmission. The leaf picking of gourds should depend on the growth of the plant. If the growth is vigorous, you can pick more leaves, and the weak ones should be picked less, so as to ensure good ventilation and light transmission in the field. In order to avoid damage to the stalks of Fatong, it is recommended that vegetable growers only remove the leaves and not the stalks. Because the petiole is thick and brittle, the leaves are removed from the base, and the stems are prone to large wounds, which are not easy to heal. The leaves can be removed in whole or in most parts, which can promote the petioles to dry and fall off more quickly. In addition, it should be noted that it is best to have a few consecutive sunny days when removing the leaves, so that the environment in the shed is relatively dry and is not susceptible to disease. After picking leaves, vegetable farmers can spray 4000 times streptomycin or 600 times garinone to prevent disease infection in advance.