Xia Cabbage is a mode of Chinese cabbage cultivation in reverse season. The average production of 667 square meters can reach 4000 kg, and the benefit of 667 square meters can reach 2,000 yuan. The short cultivation time is of high efficiency and is an ideal and efficient planting mode. The cultivation techniques are described below.
1. Excellent selection of varieties such as heat-resistance No. 45, Xiayang 50, and early heart white are the main varieties. These varieties have a short growing period, tightly packed balls, good quality, antiviral disease, resistant to downy mildew and more resistant to soft rot. Disease can still be normal under the condition of about 35°C. It is an excellent variety suitable for early spring protection and cultivation in summer.
Second, sowing date
1. The suitable sowing date for summer is from the beginning of June to the end of July.
2. After planting crops on the ridge, the weeds and stubbles were cleared. 3000 to 5,000 kg of fertilized organic fertilizer was applied to 667 square meters, 75 kg of ternary compound fertilizer and 4 to 5 kg of methyl isothioate were mixed. 20 kg of superphosphate, 10 kg 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 applied per 667 square meters and applied under the armpits.
Third, sowing method
After live broadcasting on June 1st, nutritious soil blocks (é’µ) can be used to raise seedlings and seedlings can be transplanted. To save seeds during live broadcast, holecasting is better. Use 50 grams to 100 grams per 667 square meters, cover 0.5 centimeters thick fine soil after sowing, and rub the level and compaction, spacing of 33 to 37 centimeters, row spacing 40 centimeters, 4500 to 5000 strains per 667 square meters.
Fourth, field management seedlings, Dingmiao. The first thinning was carried out in three to four leaves, and five to six leaves were given. When the seedlings and the seedlings are prevented from injuring the roots to prevent the occurrence of soft rot, 4,500 to 5,000 seedlings are planted per 667 square meters.
Fifth, fertilizer and water management in summer with high temperature, rapid evaporation of soil moisture, soil moisture should always be maintained, to prevent uneven soil moisture, in high temperature, dry weather, should increase the amount of water, rainfall, or timely drainage after rain, to prevent Water in the field, causing rot. Summer cabbage wrapped in water before the heart 10 to 15 days, cultivating seedlings. After watering the seedlings and water, chase the fertilizer once again. During the ball stage, pay attention to maintaining the soil moisture. The water should be poured on the ground in a timely manner. In combination with watering, 667 square meters of urea can be applied to 10 kg of urea or 15 kg of ammonium sulfate. Application or ditch-based, fertilizer points should be far away from the plant, so as not to burn the root system. Stop watering 5 to 7 days before harvest, which is the key to the harvest of summer cabbage.
Sixth, the cover of the vegetable field is heat and weeding, and the seedlings are covered with wheat straw or straw in the vegetable field.
VII. Pest Control
1. The main diseases of summer cabbage are downy mildew and soft rot. The diseased plants should be removed in time. Downy mildew may be treated with 40% diethylaluminophosphate WP 200 to 300 times, or 50% methicillin 500 to 600 times at the beginning of the disease, and soft rot may be used at 667 square meters in the early stage of disease. %DT fungicide 10 grams of water 25 to 30 kilograms, or 200 grams of high yield 200 grams of water to 100 kilograms of water, can also be used for spraying control of agricultural streptomycin sulfate wettable powder 3000 to 4000 times liquid.
2. The main insect pests are cabbage caterpillars, which are treated with dead card and green treasure or net prevention.
1. Excellent selection of varieties such as heat-resistance No. 45, Xiayang 50, and early heart white are the main varieties. These varieties have a short growing period, tightly packed balls, good quality, antiviral disease, resistant to downy mildew and more resistant to soft rot. Disease can still be normal under the condition of about 35°C. It is an excellent variety suitable for early spring protection and cultivation in summer.
Second, sowing date
1. The suitable sowing date for summer is from the beginning of June to the end of July.
2. After planting crops on the ridge, the weeds and stubbles were cleared. 3000 to 5,000 kg of fertilized organic fertilizer was applied to 667 square meters, 75 kg of ternary compound fertilizer and 4 to 5 kg of methyl isothioate were mixed. 20 kg of superphosphate, 10 kg 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 applied per 667 square meters and applied under the armpits.
Third, sowing method
After live broadcasting on June 1st, nutritious soil blocks (é’µ) can be used to raise seedlings and seedlings can be transplanted. To save seeds during live broadcast, holecasting is better. Use 50 grams to 100 grams per 667 square meters, cover 0.5 centimeters thick fine soil after sowing, and rub the level and compaction, spacing of 33 to 37 centimeters, row spacing 40 centimeters, 4500 to 5000 strains per 667 square meters.
Fourth, field management seedlings, Dingmiao. The first thinning was carried out in three to four leaves, and five to six leaves were given. When the seedlings and the seedlings are prevented from injuring the roots to prevent the occurrence of soft rot, 4,500 to 5,000 seedlings are planted per 667 square meters.
Fifth, fertilizer and water management in summer with high temperature, rapid evaporation of soil moisture, soil moisture should always be maintained, to prevent uneven soil moisture, in high temperature, dry weather, should increase the amount of water, rainfall, or timely drainage after rain, to prevent Water in the field, causing rot. Summer cabbage wrapped in water before the heart 10 to 15 days, cultivating seedlings. After watering the seedlings and water, chase the fertilizer once again. During the ball stage, pay attention to maintaining the soil moisture. The water should be poured on the ground in a timely manner. In combination with watering, 667 square meters of urea can be applied to 10 kg of urea or 15 kg of ammonium sulfate. Application or ditch-based, fertilizer points should be far away from the plant, so as not to burn the root system. Stop watering 5 to 7 days before harvest, which is the key to the harvest of summer cabbage.
Sixth, the cover of the vegetable field is heat and weeding, and the seedlings are covered with wheat straw or straw in the vegetable field.
VII. Pest Control
1. The main diseases of summer cabbage are downy mildew and soft rot. The diseased plants should be removed in time. Downy mildew may be treated with 40% diethylaluminophosphate WP 200 to 300 times, or 50% methicillin 500 to 600 times at the beginning of the disease, and soft rot may be used at 667 square meters in the early stage of disease. %DT fungicide 10 grams of water 25 to 30 kilograms, or 200 grams of high yield 200 grams of water to 100 kilograms of water, can also be used for spraying control of agricultural streptomycin sulfate wettable powder 3000 to 4000 times liquid.
2. The main insect pests are cabbage caterpillars, which are treated with dead card and green treasure or net prevention.
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