Excellent selection of excellent varieties with heat-resistant 45 as the head of the species, the short growth period, 60 days harvest, compact ball, good quality, average yield of up to 4,000 kilograms per mu, anti-virus disease, resistant to downy mildew, Anti-soft rot can still be normally laid at 35°C. It is suitable for early spring protection and summer cultivation. It is an ideal variety for Chinese cabbage production in anti-season. The suitable sowing date for summer sowing date is from the beginning of June to the end of July. After the crop is harvested on the ridging site, the weeds and stubbles are cleared, and 3,000 to 5,000 kg of organic fertilizer is applied to Mushi, 75 kg of ternary compound fertilizer, 4 to 5 kg of methyl isophorus, and 20 kg of mixed application. Superphosphate, 10 kilograms of zinc sulphate, deep turning, making the land flat. In order to facilitate drainage, high ridge or sorghum cultivation is required. The ridge distance is 40 cm and the width is 80 cm. In order to prevent pests and diseases, 0.75 kg of thiophanate-methyl and 10 kg of fine soil were used per acre to apply pesticides under the armpits. The sowing method will be broadcast live after June 1st, before the nutritious soil blocks can be used to grow seedlings and seedlings will be transplanted. To save seeds during live broadcast, holecasting is better. 50 grams per acre with species - 100 grams, after sowing coverage of 0.5 cm thick fine soil, and rake flat compaction, spacing between 33 cm -37 cm, spacing 40 cm, 4500 per mu -5000. Field management of seedlings, Dingmiao in the 3 - 4 leaves when the first time the seedlings, 5 - 6 leaves Dingmiao. When thinning and fixing seedlings, they should be prevented from injuring the roots in order to prevent the occurrence of soft rot. 4500 seedlings per mu, and 5000 seedlings per mu. The management of fertilizer and water in summer has high temperature and rapid evaporation of soil moisture. We should always keep the soil moist and prevent the soil from getting wet and dry. In high temperature and dry weather, we should increase the amount of watering. Drain the water in time of rain or rain to prevent the accumulation of land. Water, causing rot. Summer cabbage enveloped the first 10 days - 15 days pouring a permeable, cultivating seedlings. After watering the seedlings, they must follow a strong fertilizer. During the ball stage, pay attention to maintaining the soil moisture, and white water should be promptly watered. In combination with irrigation, apply 10 kg of urea or 15 kg of ammonium sulfate to the hole or the ditch. The main point of fertilization should be far away from the plants so as not to burn the root system. Watering is stopped 5 days to 7 days before harvest, which is the key to the harvest of summer cabbage. Covering the fields with heat and weeds, cover the fields with wheat straw or straw. Pest control The major diseases of summer cabbage are downy mildew and soft rot, and the diseased plants must be removed in time. Downy mildew can be treated with 40% EB aluminum wettable powder 200-300 times, or 50% methicillin 500 times-600 times in the early stage of disease. Soft rot is 50 times per mu in the early stage of disease. % DI fungicide 10 grams of water 25 kg -30 kg, or Feng production of 200 grams -300 grams of water 100 kg, can also be used spray streptomycin WP 3000 - 4000 times spray control. The main insect pest was cabbage caterpillar, which was treated with card dead and green treasure or net prevention again.
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