First, selection, preparation and basal fertilization
Choose a soil with deep, loose, drained and breathable soil. Each mu of farmyard manure 2000kg, compound fertilizer 30-50kg, and then deep-turn the land, fine leveling, 1.2m open box made of 90cm wide car, groove width 30cm, ditch depth 20cm.
Second, transplanting
1, transplanting time about 40 days of nursery, when the marigold seedling stem diameter 0.3cm, plant height 15-20cm, there are 3-4 pairs of true leaves can be transplanted. 2. Planting methods are planted in wide and narrow rows, with a width of 70cm, a narrow row of 50cm, a plant spacing of 40-50cm, a fertile soil in the field, an increase in plant spacing, and transplanting of 2200-2700 plants per acre. After transplanting, it should be irrigated, prompting early seedlings and early rooting.
Third, field management
1. After cultivating the soil in the cultivator, the soil should be preserved after being transplanted. When the height of the seedling is 25-30 cm, a small amount of branches will appear, and weeding will be carried out in combination with weeding to promote the development of adventitious roots to prevent lodging.
2, watering soil after soil watering according to soil moisture content, each watering volume should not be too large, to keep the soil between the wet soil.
3, the root dressing fertilizer in the flower bloom when the root dressing, spraying time after 6 pm as well, spraying urea per acre 30g, potassium dihydrogen phosphate 30g.
4. Diseases and Insect Pests Control Marigold diseases are mainly viral diseases and wilt diseases. Virus prevention and antiviral control for viral diseases were controlled; 75% chlorothalonil, carbendazim, and thiophanate-methyl were used for control of fusarium wilt; insects were mainly tigers, centipedes, cockroaches, spider mites and aphids. For ground tigers, cockroaches and cockroaches, use 3% phoxim granules per kilogram to mix with fine soil. The spider mites were sprayed with 1200-1500 times spray of 73% Ketel EC. Aphids were sprayed with imidacloprid.
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