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In northern China, from late September to mid-October, there is an off-season supply of vegetables. This season, there are few varieties of fresh vegetables, and the supply is severely insufficient. Early autumn Chinese cabbage is one of the main varieties of plug autumn vegetables, its short production cycle (55-60 days), the cultivation method is simple, and the yield is higher. Early autumn cabbage in the early growth stage of high temperature, dry season, prone to viral disease, dry heart disease, later susceptible to soft rot, pests are serious, disease prevention, pest management is the key to early autumn cabbage cultivation. According to many years of cultivation experience, it comes down to the following cultivation techniques. First, choose good varieties. High-quality varieties should have characteristics such as high temperature resistance, disease resistance, short growth period, strong ballability, and good commercial quality. It is generally recommended to use a breeding period of 55-60 days, with a single ball mass of 1.5-2.5 kg. The main cultivars can use Lukang 55, Lukang 60, Tackling No. 4, Shandong No. 19, Early Maturity No. 5, Xiaoza 55, Xiaoza 56, 89-8 and other varieties (different regions can choose varieties according to consumption habits). Second, Shizujifei, ridge cultivation. Due to the short growing period of the early-maturing Chinese cabbage, the growth rate is fast, and the land with high topography, convenient irrigation and drainage, fertile soil, and organic-rich land should be selected. Combining farmland with 6,000 kg of organic fertilizer per acre, phosphorus and potassium fertilizer will be 50 kg. And ridge cultivation. General ridge distance 60-65 cm, ridge height 15-20 cm is appropriate. Third, the appropriate period of fine sowing, to ensure that all seedlings broadcast. Early autumn cabbage heat resistance, ripeness, nodulation between summer cabbage and autumn and winter cabbage. Therefore, sowing too early can easily lead to false balling and serious diseases; it is too late to reach the goal of a high-yield and high-yield market. In Shandong, it is generally appropriate to sow about August 1. Other regions may choose suitable sowing dates based on local phenology. Fine sowing: In order to ensure the quality of sowing, the sowing date should be met with the year of drought and should be sown or watered immediately after sowing. When the Shuirun is not through the ridge surface, it will be re-irrigated the next day, so that the three waters can be seeded (after sowing in the afternoon, they can be unearthed in 48 hours). By ensuring good seed quality, we will ensure the foundation of seedlings, Miao Qi, Miao Zhuang and high yield. Fourth, and time seedlings, Dingmiao timely, reasonable close planting. Generally, 5 to 6 days after emergence, the cross-spots (two cotyledons are unfolded) are used for thinning to prevent seedlings from being congested, leaving 3-4 per hole; 5-6 leaves are set to be seedlings, and the seedlings are suitable for cropping, generally per acre. Bao Miao 3000-3200 strain is appropriate. Fifth, based on disease prevention and pest control, strengthen the cultivation and management. Timely prevention and control of cocoons, aphids, cabbage caterpillars, diamondback moth, etc., seedling stage for the prevention and control of the key period, the general can be used more than methomyl, Wan Ling and other pesticides sprayed alternately. Diseases are mainly virus diseases and soft rot diseases. In addition to the selection of disease-resistant varieties, it is necessary to strengthen cultivation and management, such as ridge live broadcasting, avoid flood irrigation, and remove diseased plants. Six, fertilizer and water early attack, early harvest. It should be flooded with water and attacked in the end. Fertilizer should be a small number of times, after the general Dingmiao, topdressing 15 kg of urea per acre. From the end of lotus to the beginning of the ball, 25 kg of urea can be applied per mu. The fertilizer can be applied to both sides of the ridge, and the soil can be ridged and watered in time. The number of waterings may be determined according to the rainfall conditions, and it is not advisable to ensure that the ridge surface is wet. In order to obtain higher benefits and avoid rot, picking plants and morning markets should be selected. (Source: "Vegetables" period of 2004.8)