The heat-resistant Chinese cabbage planted after wheat harvest is harvested during the off season of vegetables from late August to early September. Therefore, the price is high and the benefits are good.
1. Select suitable varieties generally use Zhufeng 40, Jinan May fresh and so on. Zhufeng 40 has a 40-50 days growth period. The plants are obovate, white and white, and guillotine. They have good resistance to heat and can still be normal when the temperature is 35 °C. The average plant weight is 1.0. - 1.5 kg, planting 5500 - 6000 plants per 1/5 ha. The characteristics of Jinan in May are similar to those of Zhufeng 40.
2. Soil preparation for planting will not grow in the summer, but it will also be planted in the soil where the water is poured. If the sensation is not good, water must be poured 1 to 5 days before wheat harvest. Immediately after the wheat was harvested, it was ridden by things. The ridge height was 15 centimeters, and the width was 80-90 centimeters. The top of the ridge was flat and all the wreckage of the wheat root was picked out for farming. In combination with ridging, 100 kg of compound fertilizer for each 1/5 hectare, 4000 kg of fertilizer for soil, and 50 kg of ammonium bicarbonate. The 50% compound fertilizer and all the soil miscellaneous fertilizers are applied, and the rest of the fertilizers are applied along the furrows. Sow two rows per ridge, spacing 30-35 cm, spacing 20-25 cm. Cave sowing, hole depth 0.5-1.0 cm, the bottom of the hole should be flat. 100 grams of water per hole, sowing 3-4 seeds, can not be used dry cast water method. If the weather is dry, it should be covered with moisture on the sowing hole. After 3 days, the seedlings can emerge. If the seedlings are short, they should be replanted in time.
3, Visor Although the above two varieties have strong heat resistance, cabbage is cool and cool after all. It must be shaded to grow well. If conditions are good, shade nets can be used. However, the most convenient and economical method is to use high stalk corn shade, that is, every 3-4 ridge cabbage species 1 ridge corn, two rows per ridge species.
4. Prevention and control of pests and weeds The grass damage in summer is extremely serious. There are mainly ponds such as Matang, Setaria, etc. It is possible to uniformly spray the ground with 100-150 ml of butachlor in each 1/15 hectare before emergence. After the emergence, they are treated with chlorfenapyr. Insect pests are mainly cabbage caterpillars, which can be controlled by pesticides such as Peach Xiaoling and Xeroxil. The disease is mainly Sclerotinia. The disease should be mainly prevention. Pay attention to watering and cooling in time after rain, and water in time when drought occurs. When the disease occurs, the use of gray mold grams, anti-virus scorpion, sclerotium and other prevention and treatment. For clubroot disease, it can be controlled with Bulik.
1. Select suitable varieties generally use Zhufeng 40, Jinan May fresh and so on. Zhufeng 40 has a 40-50 days growth period. The plants are obovate, white and white, and guillotine. They have good resistance to heat and can still be normal when the temperature is 35 °C. The average plant weight is 1.0. - 1.5 kg, planting 5500 - 6000 plants per 1/5 ha. The characteristics of Jinan in May are similar to those of Zhufeng 40.
2. Soil preparation for planting will not grow in the summer, but it will also be planted in the soil where the water is poured. If the sensation is not good, water must be poured 1 to 5 days before wheat harvest. Immediately after the wheat was harvested, it was ridden by things. The ridge height was 15 centimeters, and the width was 80-90 centimeters. The top of the ridge was flat and all the wreckage of the wheat root was picked out for farming. In combination with ridging, 100 kg of compound fertilizer for each 1/5 hectare, 4000 kg of fertilizer for soil, and 50 kg of ammonium bicarbonate. The 50% compound fertilizer and all the soil miscellaneous fertilizers are applied, and the rest of the fertilizers are applied along the furrows. Sow two rows per ridge, spacing 30-35 cm, spacing 20-25 cm. Cave sowing, hole depth 0.5-1.0 cm, the bottom of the hole should be flat. 100 grams of water per hole, sowing 3-4 seeds, can not be used dry cast water method. If the weather is dry, it should be covered with moisture on the sowing hole. After 3 days, the seedlings can emerge. If the seedlings are short, they should be replanted in time.
3, Visor Although the above two varieties have strong heat resistance, cabbage is cool and cool after all. It must be shaded to grow well. If conditions are good, shade nets can be used. However, the most convenient and economical method is to use high stalk corn shade, that is, every 3-4 ridge cabbage species 1 ridge corn, two rows per ridge species.
4. Prevention and control of pests and weeds The grass damage in summer is extremely serious. There are mainly ponds such as Matang, Setaria, etc. It is possible to uniformly spray the ground with 100-150 ml of butachlor in each 1/15 hectare before emergence. After the emergence, they are treated with chlorfenapyr. Insect pests are mainly cabbage caterpillars, which can be controlled by pesticides such as Peach Xiaoling and Xeroxil. The disease is mainly Sclerotinia. The disease should be mainly prevention. Pay attention to watering and cooling in time after rain, and water in time when drought occurs. When the disease occurs, the use of gray mold grams, anti-virus scorpion, sclerotium and other prevention and treatment. For clubroot disease, it can be controlled with Bulik.
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