2. Land selection and preparation
Choose sunny and fertile humus soil or sandy loam soil with deep fertility and good drainage to grow better. Compost or ring fertilizer1500-2000g per mu, mixed with phosphate fertilizer 20-40kg as base fertilizer. After the base fertilizer is evenly spread, deeply plough it for 20-30cm, and carefully rake it to make the border 65438+ wide.
Step 3 choose seeds
The rhizome seeds of imperata cogongrass are full, free from cracks and deformation, and disinfected with disinfectant 12- 16 hours.
4. Breeding methods
During the internode from Tomb-Sweeping Day to Grain Rain in spring, a shallow border of 20-25 cm should be opened in the border with good soil moisture, seeds should be evenly scattered in the border, and then covered with soil about 1cm. Watering after planting, emergence in about 20 days.
5. Tian Tuan management
The soil should be kept moist before emergence. Pay attention to weeding, watering and topdressing during the whole growth period to prevent grass damage.
6, pest control
(1) Root rot: Damage to roots, mostly in rainy season. Prevention and control methods: ① clearing the garden; ② Treating diseased points with lime; (3) Spraying the rhizome with 50% bactericide for 500 times.
(2) Aphids: It is harmful to suck the juice of stem meat. Control method: clear the garden in winter and spray 50% cartap1000-2,000 times or 8% dichlorvos emulsion 1500 times.
6, harvesting and processing
Harvest after sowing 1-3 years, generally in autumn and spring, the stems, leaves and roots are excavated together to keep the elements intact, the soil is removed, semi-dried and tied into sticks, and then placed in the sun or in the shade, without other pollution.