1. Land selection, soil preparation and application of base fertilizer
Choose soil that is deep, loose, and well ventilated. Per mu of farmer's fertilizer 2000kg, compound fertilizer 30-50kg, then deep-turn the land, finely flattened, 1.2m open box made 90cm wide, the groove width is 30cm, the ditch depth is 20cm.
Second, transplanting
1. The transplanting time is about 40 days. When the marigold seedlings are 0.3cm thick and the plant height is 15-20cm, they can be transplanted when 3-4 pairs of true leaves appear. 2, the planting method is wide and narrow row planting, wide line 70cm, narrow line 50cm, plant spacing 40-50cm, soil fertile field to increase plant spacing, transplant 2200-2700 plants per acre, planted according to size seedlings. After transplanting, water should be poured to promote early seedling and early rooting.
Third, field management
1. After transplanting the cultivating soil, it should be shallowly preserved. When the seedling height is 25-30 cm, a small amount of branches will appear. Combine the weeding to cultivate the soil to promote the adventitious root and prevent lodging.
2. After watering and cultivating the soil, watering should be carried out according to the soil moisture. The watering amount should not be too large, and the soil should be wet between the soils.
3, the top of the top dressing in the flower bloom when the root dressing, the spraying time is after 6 pm is good, spray urea 30g per acre, potassium dihydrogen phosphate 30g.
4, pest control marigold disease is mainly viral disease, blight. The virus disease virus and bacteria poisoning were controlled; the blight was treated with 75% chlorothalonil, carbendazim and methyl thiophanate; the pests were mainly tigers, cockroaches, cockroaches, red spiders and aphids. For ground tigers, cockroaches, and cockroaches, use 3% phoxim granules per acre for 2 kg of soil preparation and mix with fine soil. Red spider is sprayed with 73% gram of emulsifiable concentrate 1200-1500 times. Aphids are controlled with imidacloprid spray.
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