The advantages and methods of cultivating thin-skinned muskmelon in early spring to avoid rain
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In the past, it was planted on the basis of direct film coverage, which resulted in the concentration of melons. The price was low. After the rain, the disease was serious and the control was difficult. In recent years, on the basis of mulching, changing the original planting methods, early greenhouse seedlings, plastic film covering and transplanting, deducting a small arch shed, and then deducting a large arch shed, it also formed a rain sheltering cultivation method with two sheds and one membrane. Therefore, the prevention of direct contact with the dew and the string of water in the dew-dehydrated water can solve the major problem of death of the melon.
The two sheds plus a membrane sheltering cultivation method is a new thing, there is no specific species at the moment. Now the main trial varieties are: Qi Tian, ​​Sugar King, Sweet and so on.
Nursery: Matsubara can be used on the greenhouse in March 10 with plastic hoe nursery, 60% of the field and 30% of the decomposed farmyard fertilizer, plus comminuted diammonium 0.5%, 10% of decomposed chicken manure. After mixing, sifting through the screen, using a finger to press a deep 2 cm hole in the soil, plant 2 to 3 seeds, cover it with fine soil, put it into the pot, and drench it with water. The mulch is completely covered, and after 4 to 5 days, the mulch is removed. Keep 25 to 30°C during the day and no lower than 20°C during the night. Incubate the seedlings 5 ​​to 7 days before planting.
Site preparation: Melons have high permeability in sandy loam, so low-lying water and paddy fields cannot be chosen. A one-time application of 5000 kg of manure per acre, 15 kg of diammonium, and 5 kg of potash. Normal ridges, two ridges left an empty ridge, leaving a gap between the two ridges. It can be transplanted in late April. It has 1700 seedlings per acre, and is grated by 0.4 meter spacing, with a small amount of diammonium per pit. After watering seedlings, cover the film. The seedlings punctured the mulch to allow the seedlings to stick out from the holes. The seedlings were sealed with fine soil, and they were buckled with a small arch shed. Then, a small arch shed was used to fasten the shed.
Management: When the temperature exceeds 25°C during the day, the air is released, and when the temperature drops to 20°C, the air is closed. When the outside temperature is maintained above 15°C during the day, the small arch shed is removed, only the earth membrane and the large arch shed are left. The large arch shed is kept from beginning to end, and the large arch shed is closed at night and rainy days to prevent rain and dew from directly contacting with the locust string. In the ditch under the film irrigation. The humidity in the booth is within 50 to 60%, and it is more than 70% long-term susceptible to string disease. When the seedlings issued 4 to 6 true leaves, they took care of their hearts. After 3 to 4 vine seeds, all the vines were removed and the vines were left with 3 to 4 leaves topping.
Pest control: The main diseases of melon are downy mildew, powdery mildew, and blight. Insect pests are locusts. Rotation of Rhizoctonia and Triadimefon every 7 days. Locusts are found and can be controlled with dimethoate. Stop using pesticides 15 days before picking.