First, the technology
1. Planting season
a, spring: sowing in February - April, harvesting in April - July;
b. Autumn: sowing from August to September, harvesting from September to February of the second year;
c. Winter: Sowing from October to November and harvesting from December to April.
2. Planting technology points
a. Soil preparation and base fertilizer
Apply 1500 kg organic fertilizer per acre as base fertilizer;
After 2-3 days of drying in the field, a 1.5-meter-wide high box is made, and the depth of the groove is 20-25cm.
b, sowing
Before sowing, seed treatment is needed. Seeds are soaked in warm water for 24 hours, removed and placed in the environment of 15-20 degrees to germinate, and 3-4 days of seed dew can be sowed. The amount of fertilizer applied per acre when sowing is 3-4kg, and the amount of land after the sowing is sufficient to cover the soil after 0.5-1cm.
Second, the locust pest control
1, blight
a, appropriate sowing, choose a reasonable planting density.
b. In the early stage of disease, use 75% Chlorothalonil WP 800 times, or 58% LD Doppler WP 500 times, or 64% antivirus WP 500 times at sunny noon. .
2, leaf spot
a. Implement rotation.
b. In the early stage of disease, 70% thiophanate-methyl wettable powder 1000 times liquid and 75% chlorothalonil wettable powder 1000 times liquid are used for prevention and treatment.
Sclerotinia
a. Seeds should be disinfected before sowing. The seeds can be washed with 10% saline.
b. Using sorghum planting to control the amount of nitrogen fertilizer.
c. In the early stage of disease, 50% lyophilized WP can be used for 500-700 times, or 40% sclerotin can be used for 500-700 times, or 50% acetaminophen can be used for 1000-1500 times.
4. Plutella xylostella
a. Avoid continuous cropping when planting.
b. Clean up regularly.
c. BT emulsion at the early stage of disease or 3,000 times of Tiaochuang EC can be sprayed at 3000 times.
5, cabbage caterpillar
a. Avoid continuous cropping when planting.
b. When the temperature is above 20 degrees, it is sprayed and controlled with 500-800 times BT emulsion.
Spodoptera litura
Adults were trapped and killed, and sugar, wine, water and vinegar were added in a ratio of 3:1:2:4 to add a small amount of trichlorfon to the sweet and vinegar to trap and kill.
Third, the collection of garland chrysanthemum
a, when the Artemisia halodendron plants grow to 20cm, they can be harvested. Harvesting knife can be used in the stem base to leave 2 to 3 leaves cut off. Every 20-25 days harvest once, can be harvested 2 to 3 times, per acre yield of 1000 to 1500 kg.
b. Harvesting interval is 20-25 days, 2-3 times can be harvested.
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