③Management of vine extraction and fruiting period: When melon seedlings start to stretch vines, they should follow the vines and press the vines in time to make the main vines grow in a directional direction, which can prevent wind damage to the roots and damage to the stems and leaves, and reduce root pests.
Pruning regulates plant growth, prevents excessive growth of stems and leaves, and promotes flowering and fruiting. The pruning method usually adopts the three-vine type, that is, keeping two strong auxiliary vines at the base of the main vine, so that there are many stems and leaves, and each vine has a chance to fruit. Our company provides fruit seeds.
After the watermelon plant has buds, the stems and leaves and young fruits are vulnerable to wind damage, and the stems and leaves are easily criss-crossed and pulled together. Therefore, it is necessary to combine the vines to press the vines, that is, press a mud block on every 3 to 5 knots to grow adventitious roots on the favorable knots. On the one hand, it can stabilize the vines and make them grow in an orderly manner. On the other hand, it can increase the ability of water and fertilizer absorption. At the same time, it can also combine with the vines to press the vines, cut weeds, and level the border surface. The vine can be pressed two or three times in the early stage of birth.
In the early stage of watermelon growth, the female and male flowers are open. If the outside temperature is low or rainy, there are few insects, pollination and fruit setting are not easy, artificial auxiliary pollination should be used to increase the fruit setting rate.
If you want a big fruit and good quality, you can choose the second and third female flowers.
Fourth, prevent pests and diseases
1. Sudden illness. It is easy to occur under the conditions of low temperature, high humidity, and sometimes rain, and the diseased plant will fall down due to the wilt of the seedling stem. It can be used to mix 1 kilogram of ground copper sulfate powder and 20 kilograms of quicklime powder, and sprinkle them in the soil around the diseased plants for prevention and treatment.
2. Anthrax. The germs are spread by wind, rain and insects. Purple-brown spots can be found on the stems, leaves, and melons of diseased plants, causing the plants to die. Prevention method: Use one part each of quicklime and copper sulfate, mix with water 200 times, and spray it as Bordeaux liquid. It can also be sprayed 800-1,000 times with 50% tromethamine or thiophanate with water.
3. Viral disease. The leaves are deformed, with different shades and slow growth. Disease-resistant varieties should be selected, aphids should be controlled in time, and contact and infection should be strictly prevented. Properly manage water and fertilizer to promote plant health and increase resistance.
4. Fusarium wilt. The roots and stems of the plant were yellowish brown, and the whole plant withered and died. Disease-resistant varieties should be selected, continuous cropping should be avoided, strong seedlings should be cultivated, and the field should be cleaned. At the beginning of the disease, 50% ammonium ammonium and 500-1,000 times water can be used for root control.
The above information is provided by seeds manufacturer.