First, temperature management 5 days after planting, no ventilation, increase soil temperature and temperature, promote slow seedlings. After the easing of seedlings, the temperature of the shed is managed, so that the maximum temperature in the shed does not exceed 35°C and the minimum is not less than 12C. The temperature can be adjusted by ventilation. The ventilation openings should be as small as possible. Do not expose the ventilation to prevent flashover. In case of cold current, cover the tar film or cover the quilt paper as soon as possible. When the average daily temperature exceeds 18°C, it can be ventilated overnight. In the middle and late May, when the lowest temperature in the outside world exceeds 12°C, there are 15 to 17 leaves on the vine, and the small arch shed can be removed about 7 days before flowering. Second, water and fertilizer management During the period of fruit enlargement, the application of swelling manure was applied, and 15 kg of compound fertilizer was applied per mu, 10 kg of potassium sulfate, or 75 kg of cake fertilizer. During the flood season, 0.2% KH2PO4 was sprayed once a week. Third, the whole pressure vine The double-film covering cultivation mainly adopts double-vine twigs, that is, it maintains a robust lateral vine on the main vine and the base, and the remaining lateral vines are promptly removed. After the shelter is shed, the vines will be introduced into the quails and the two rows of watermelons will climb in the opposite direction. The vines are separated by 20 cm and pressed together. The first vine was crushed at 60 centimeters in length, and then pressed once every five times for a total of 3-4 times. Pressure vines can be divided into pressure and dark pressure in two forms. Pressing refers to the use of clods and sticks to push the vines to the ground. The soil is heavy, the humidity is high, and the plants may grow under weak conditions. The dark pressure is used to separate the vines and bury the soil. To expose the petiole or leaves to the ground, dark pressure should be applied to the plants with strong growth, drought, and sandy soil. Do not press too tight or too tight before and after staying in the melon section. And far away from the melon section pressure, to prevent melon vines because of the growth. Fourth, stay with melon and whole melon The 2nd and 3rd female flowers were pollinated at the time of opening, leaving 3 to 5 leaves topping before flowering. Flowering fruiting period If it is rainy, it is necessary to give a paper bag to the female flower and the male flower. After sunny, remove the paper bag to pollinate and mark it. In order to promote melon growth, the plants with strong growth potential will be weighed when the melon grows to the size of the egg. The vine will be pinched and the nutrients will be transported into the guava. During the period of fruit enlargement, "pad melon" and "pour melon" were performed. In summer, it is necessary to shade the fruit and prevent sunburn. Tetanus Toxoid Vaccine,Toxoid Vaccine,Hep B Immune Globulin,Immunoglobulin Injections FOSHAN PHARMA CO., LTD. , https://www.fspharmamedicine.com
Double membrane covering watermelon after transplanting?