How to manage planting traditional Chinese medicine Salvia miltiorrhiza?

How to manage planting traditional Chinese medicine Salvia miltiorrhiza? Please give some advice on the management of planting traditional Chinese medicine Salvia miltiorrhiza as follows: ① ploughing and weeding: generally ploughing and weeding three times, once when the seedlings are about 10 cm high in April, once before and after flowering in early June and once in late August. ② topdressing: topdressing three times in the growing period, combined with mid-tillage, weeding and irrigation, the first time when Salvia miltiorrhiza turned green, urea 5kg per 667m 2 furrow; the second time after cutting the first inflorescence, 50kg N, P and K fertilizer per 667m; the third time from August to September, foliar spraying 0.65kg of trace fertilizers such as manganese, boron, zinc and iron. ③ irrigation and drainage: from May to July is the peak growth period of Salvia miltiorrhiza, which requires a large amount of water. In case of drought, seepage irrigation or sprinkler irrigation should be discharged from the border and ditch in time, and flood irrigation should be prohibited. In case of continuous rainy weather, when water accumulates in the soil, it should be discharged in time. ④ bud picking and seedling control: when bud buds appear on the main axis and lateral branches of Salvia miltiorrhiza, bud buds should be cut off in time to promote root development. ⑤ pest control: the main diseases of Salvia miltiorrhiza are root rot, leaf spot, root knot nematode and so on. In order to control the disease of Salvia miltiorrhiza, rotation should be carried out. Salvia miltiorrhiza can not be planted for more than 2 cycles in the same plot, and it is best to rotate with Gramineae crops. During the onset period, root rot and leaf spot disease were irrigated with 1000 times of carbendazim or 70% methyl thiophanate, 250ml per plant, once every 10 days for 2 times in a row; or 70% carbendazim or 75% carbendazim was sprayed once every 10 days for 2 times in a row, paying attention to the base of the stem. The main pests of Salvia miltiorrhiza are grubs and golden needle worms. when occurring in large quantities, 50% phoxim emulsion 1000-1500 times or 90% trichlorfon 1000 times solution is used to irrigate roots, 50 ml per plant. Click to get more planting techniques of Salvia miltiorrhiza