First, breeding technology (1) Selecting land for bed and bed soil treatment Choose the leeward sun, the soil is loose and fertile, the acid is too little, the weeds are few, and the bed is close to the water source. The specification depends on the width of the film. Generally, the 1.2 m wide film is used, and the bed should be 1 meter wide and 15 meters long. Turn the bed 10-15 cm deep, remove the net residue, break the clods, and apply 10 kg of fully decomposed pig manure, 35 g of ammonium nitrate, 85 g of diammonium and potassium sulfate per square meter. 54 grams, then these fertilizers were repeatedly mixed evenly in 10 cm of bed soil, otherwise burned roots dead. After fertilizing the flat bed seedlings, the water is poured into the bottom water with a watering can, and the pit water is stained, and the organic fine soil is filled to prevent the acid and disinfection. When adjusting the acid, first test the PH value of the bed soil with litmus paper. If the PH value is 6, use 375 ml of industrial sulfuric acid per square meter of seedbed, inject 37.5 kg of water, and spray a pH on the bed surface. Until the PH value is below 6. If you use bed soil to increase fertilizer and adjust acid agent, about 9.5 kg per square meter of seedbed, mixed with fertilizer into the bed soil, the effect is also very good, when diluted with dixon, 2.5 g per square meter diluted to 600 times liquid Spray on the bed. After disinfection, if the soil moisture of the bed is not saturated, water should be poured again to fill the potholes. (two) seed treatment Select the appropriate maturity, high-yield and disease-resistant varieties to dry in the shady ventilated place for 2 days, then use salt water to select seeds to remove empty space, weeds and other debris. When disinfecting, put the seeds into the four-thousand-thousand-thousand-thousands of carbendazim liquid or five-thousand-thousands of carbendazim medicinal solution at 5 to 15 °C for 5 days and nights, and reverse every morning and evening. After disinfection, wash the seeds twice with water and soak them in water at 15 °C for about 5 days to see the seeds transparent. Place the chest at 28 ~ 32 ° C, about 70% of the split mouth, cool down to 25 ° C germination, bud length 2 mm, hang buds to be sown. Second, planting film and management of the field When the outside temperature is stable through 6 °C, 0.35 kg of seed is germinated per square meter, evenly flattened so that the seeds are placed on the soil on three sides, 1 cm thick organic fine soil is covered after sowing, and a layer of chaff ash, green manure, etc. is covered on the fine soil. Separators to prevent the mulch from adhering to the mud surface and prevent emergence. Then the film cable is fixed. In the rainy days, if there is water on the membrane, it should be wiped off in time to avoid crushing the seedlings. When the seedling grows to the 2-leaf stage, it is necessary to uncover the film and refine the seedlings. The two ends are opened at 10 am to make it ventilate. It is covered at 2 pm. After 2 to 3 days, if the temperature is stable, half of the film can be uncovered. Shallow shallow water bed surface. The temperature in the rainy day is low, and the effect of temperature increase in the film is small. It is necessary to pay attention to sealing for a period of time and then robbing the two at the high temperature to ventilate the two ends, while washing the seedlings. 2.5 leaves can be completely removed after the film, the general film time is about 15 days, after the film is removed, topdressing, 5.2 ~ 6 grams of urea per square meter seedbed, 5 to 7 days should be applied to the fertilizer. ZHANGJIAGANG DINSHENGLIN TRADING CO.,LTD , https://www.dslhouse.com