2, look at the top of the melon, the round and big navel print is a good melon. If the navel print on the top of the melon is small, it means that the melon has not grown yet, no matter how big it is, it is not sweet!
3. Finally, it depends on whether there are scars on the melon and whether it feels crisp enough. If it is soft, don't buy it Must be cooked! I had loose bowels.
4, look at the color, sallow is the best. If it is white, milky white is the best.
Question 2: How to choose the stem of white melon? The navel is small and fruity.
Question 3: How do white melons start with four leaves on the main vine and seven leaves on the auxiliary vine? Sun Man has four or six results.
Question 4: How to choose a melon? How to choose a white melon? The melon should be smaller. Most of the melons have no umbilical cord, but they are a little green. This is the first leaf of a melon, which is easier to pick, because the long school also has umbilical cord. The bigger the umbilical cord, the better. Click on the soft part of the umbilical cord. Smell the * * * fragrance of cantaloupe. It's so sweet.
Question 5: How to choose cantaloupe? There are many cantaloupes now. This is also a festival. How to choose cantaloupe? Just talk about my personal punishment:
1, cantaloupe has two ends. There is a big round head at one end. The small head is the end of the vine. The first step is to look at the junction of vines and melons on the side of the small head.
Whether there are signs of natural damage. If the melon is ripe, there will be a pit in this place after it falls naturally. Otherwise, pick immature melons.
There are vines on it.
2. Look at the big head. Press slightly hard with your fingers. If you feel a little bit Microsoft. It should be cooked. The big head of individual varieties is small and hard. May not be appropriate.
This step.
3. smell the big head. Generally, mature melons can smell a strong natural aroma here. Light or tasteless. It may be watermelon.
The above may not be complete. But how much should be close.
Question 6: What varieties of white melons are managed? Xiang Ji Na?
Question 7: How to cultivate and manage white melons? 1, variety selection
The varieties should be mainly early-maturing, middle-maturing and high-quality varieties, supplemented by moderately middle-late maturing varieties. At present, the main varieties used in greenhouse production are Elizabeth, Yinmizi, reticulate incense and some suitable early-maturing and middle-maturing varieties at home and abroad.
2. Cultivate strong seedlings
(1) When the ground temperature in the greenhouse is stable above 12℃ during the sowing period, it can be planted. The seedling period of melon is about 1 month, so the sowing period is about one month. Sowing and seedling raising are usually carried out in heated greenhouses and hotbeds. The sowing date of muskmelon in greenhouse in south China is in mid-February, and if the heat preservation conditions are good, it can also be raised to 1 month in advance.
(2) removing impurities, impurities and chaff from the treated germinated seeds, and drying them in the air. Soak the seeds with thiophanate-methyl or carbendazim 500 ~ 600 times for sterilization 15 minutes, take them out and put them in clean water, then soak the seeds with trisodium phosphate solution with the concentration of 15% for 30 minutes to inactivate the virus. Soak the seeds in warm water at 50 ~ 60℃, stir to 30℃, let them soak for 6 ~ 8 hours, remove the moisture in the seed coat, wrap the seeds layer by layer with clean coarse cloth, and put them at a constant temperature of 30 ~ 32℃ to accelerate germination (there are many methods to accelerate germination, which can be carried out in a constant temperature box or in a boiler room with electric blankets, fermented manure piles, warm water buckets, etc.). The radicle is exposed for 24-30 hours, and then the seeds can be planted.
(3) Nutrition production Seeding nutrition bowls can be made by yourself, or plastic nutrition bowls with different specifications can be purchased. The size of the nutrition bowl can be 10 cm× 10 cm or 8 cm× 8 cm or 8 cm× 10 cm, with a minimum of 6 cm× 6 cm. Nutritive soil is prepared to meet the needs of melon seedling growth and development for soil mineral nutrition, water and air. Nutritious soil should be loose and breathable, not easy to break, with strong water and fertility retention, rich in various nutrients and free from pests and diseases.
Nutritive soil is made of field soil, garden soil, river mud, furnace ash, all kinds of livestock manure and dried human manure. All manure must be completely decomposed. The ratio is 5 parts of field soil, 4 parts of decomposed manure and 1 part of river mud or sand. Add 0.5 kg of urea, 0.5 kg of 65438+ calcium superphosphate, 0.5 kg of potassium sulfate or 0.5 kg of 65438+ NPK compound fertilizer per cubic meter of nutrient soil. The nutrient soil is sieved before mixing, and then mixed evenly. Box seedlings can be used in seedbeds, and paper tubes and nutrition pots can be placed in paper tubes or nutrition pots and closely arranged in seedbeds. This work should be completed a few days before sowing to ensure that there is enough time to water and bake the seedbed before sowing.
The seedbed nutrition bowl is sprayed once with a watering can, and can be sown after airing for 4-6 hours. Put 1 seed in each nutrient pot, and cover the soil with 1 ~ 1.5cm after sowing. Then cover the plastic film, keep the bed soil moist, raise the temperature of the nutrition bowl, and immediately remove the plastic film when seedlings emerge, so that seedlings can emerge.
(4) Seedbed management Seedbed management is centered on mastering the temperature, and it should be sealed and ventilated before emergence. At this time, the bed temperature should be kept at 30 ~ 35℃. Once the new buds begin to be unearthed, proper attention should be paid to ventilation, because the hypocotyl grows fastest from the time when the seedlings are unearthed to the time when the cotyledons are flattened, which is the stage when the seedlings are most prone to overgrowth. Therefore, special attention should be paid to controlling the overgrowth of melon seedlings. There are three measures: first, the bed temperature should be reduced to15 ~ 22℃; Second, extend the illumination time as much as possible to ensure the normal development of seedlings; Thirdly, reduce the humidity of air and soil in the bed. The relative humidity of air is 50% ~ 60% during the day and 70% ~ 80% at night. After the true leaves appear, the seedlings are not easy to grow in white, so the bed temperature should be raised to 25 ~ 30℃ again. After the seedlings grow two real leaves, it is necessary to lower the bed temperature, control watering and exercise before planting. In addition, practice has proved that it is an effective measure to cultivate strong seedlings by using the large temperature difference between day and night. When the true leaves of seedlings appear, the temperature in the bed is about 30℃ during the day and the lowest temperature at night is about 65438 05℃, which is beneficial to the growth of roots and the cultivation of strong seedlings.
Step 3 plant
(1) When the seedlings grow to two true leaves, the height of the seedlings is about 10 cm, and the leaves are plump and dark green, they can be planted in the greenhouse. The planting period in the greenhouse is closely related to the ground temperature in the greenhouse at that time, so the planting period varies from place to place. The middle and lower reaches of the Yangtze River can be in the first half of March. The temperature in the greenhouse is low when planting, so the greenhouse should be closed 10 ~ 15 days before planting to increase the temperature in the greenhouse.
(2) Land preparation and planting density &;
The soil in the greenhouse should be deeply ploughed in time after the previous crop is harvested. The base fertilizer is mainly organic fertilizer, with 3500-4000 kg of potassium sulfate compound fertilizer per mu, which should be spread when two-thirds of the soil is ploughed first, and then leveled, with a height of 20 cm and a width of 8 ... according to the frame spacing 1.4 m > >
Question 8: How to choose sweet and crisp white melons, which are big and round in appearance, and it is also important to choose varieties.
Question 9: What are the benefits of eating melons? How to choose melons? Generally eat melons directly. How to eat? Are there any other ways to eat melons? What therapeutic effect does eating melon have? According to research, melon can be eaten together with other melons and fruits to treat constipation. Wax gourd itself has the effects of clearing heat, stopping diarrhea, quenching thirst and diuresis. Eating more melons in summer can greatly increase appetite and relieve mood. These are the therapeutic effects of melons. The following will specifically introduce the eating method of wax gourd and its therapeutic effect. The production instructions are suitable for constipation: 500 grams of fresh melon, each morning and evening 1 time. The therapeutic effect of melon is sweet, cold and non-toxic, warming the heart meridian and stomach meridian; Has the effects of clearing away heat, relieving summer heat, relieving vexation, quenching thirst and inducing diuresis; It can be used for treating chest and diaphragm fullness, anorexia, vexation with heat and thirst, thermal bladder obstruction, and dysuria. If you are too lazy to cook, you can eat melons directly. If you want to eat some other ways to eat melons, you can try to do some of the above methods. Eating more melons in summer is very helpful to your health.