1. Fertile loam or sandy loam should be selected for land preparation. Apply 2,500-3,000 kilograms of compost every 667 square meters, plough deeply for 20-25 cm, rake finely, and make a border with a width of1.2m.
2. Rhizome propagation can be planted in spring and autumn. Spring sowing is from the end of March to the end of April, and autumn sowing is 65438+1the end of October. It is planted in autumn in the south and Yichun in the north. Combining planting and harvesting, planing the roots, and selecting thick, dense, purplish red roots without pests and diseases as seedlings. The rhizome of Phragmites communis is not suitable for seedling, because it is easy to bolt and bloom. Before planting, cut the selected rhizome into 5-7 cm segments, each segment has 2-3 buds. Line spacing 30cm
The ditch depth is 6 ~ 8 cm, and the plant spacing 15 ~ 20 cm. The cuttings are divided into 2 ~ 3 sections, covered with soil, compacted and watered. Generally, when the temperature is 18 ~ 20℃, the emergence time is about 15 days. The seedlings planted before winter will germinate in the following spring. 20 ~ 30 kg seedlings per 667m2.
Cultivation management:
1. After all the weeding seedlings in intertillage come out, there are many weeds in early spring, so it is necessary to loosen the soil in time to weed, and the intertillage should be shallow; Draw up the draft after closing the ridge to keep the field clean and free of weeds.
2. Top dressing twice, the first time in June and the second time in July, with 5 kg of urea and 0/5 kg of calcium superphosphate/kloc-per 667 square meters, ditching and watering.
3. Cutting off the flowering of aster will consume a lot of nutrients and affect the growth of roots. Cut off the flower buds when bolting, so as to provide nutrients for the growth of rhizomes.