How to grow herbs

Fangfeng is a common herbal medicine in our country, which has a wide range of uses. Many people increase their income by planting it, so how to plant Fangfeng?

1. Land selection and preparation

Windproof and cold-resistant, drought-resistant, but avoid waterlogging or soil too wet, so try to plant in high-lying, sunny plots and low-lying and moist places. Generally, the sandy loam soil with deep soil layer, loose and fertile soil and good drainage is suitable for planting, while the soil with heavy soil viscosity or high acidity and alkalinity is not suitable for planting. After selecting the land, turn the land deeply and apply 3000-4000 kg of farm manure and 20 kg of calcium phosphate per mu.

2. Sowing seeds

(1) sowing time: spring or autumn, spring sowing is usually from March to April, autumn sowing is from September to October.

(2) seed treatment: the seeds should be treated before sowing, and the seeds should be soaked in warm water for 24 hours so that they can absorb enough water before sowing.

(3) sowing method: when sowing, we can generally sow in the furrow surface, ditch depth 2-3cm, sow the seeds, cover the soil and water to keep the soil moist, and the seedlings can emerge within one month, generally 2-2.2kg per mu.

3. Field management

The main results are as follows: (1) Seedling replenishment: when the seedlings are growing at 4-5cm, the distance between seedlings should be controlled at 5-7cm; when the seedlings grow above 10cm, the seedlings should be fixed in time, and the distance between seedlings should be controlled about 15cm.

(2) Intermediate ploughing and weeding: 2-3 times a year after seedling setting, the field should be kept clean so as not to affect the growth of plants, and can also be carried out with soil cultivation in summer to prevent plant lodging in summer. cultivate soil in winter to facilitate root system overwintering.

(3) Fertilizer requirements: the peak season of plant growth is from June to August, so topdressing should be applied twice. Each topdressing can be applied with human and animal manure, calcium superphosphate and trenching between rows. In addition, Fangfeng should pick bolts in time, biennial in addition to seed, should be bolted, Fangfeng drought resistance is strong, so there is no need for irrigation, in the rainy period to timely drainage and waterlogging, so as to avoid root damage.

(4) Disease and pest control: powdery mildew, yellow-winged fennel borer and yellow Phoenix butterfly will appear during Fangfeng planting. Powdery mildew mainly develops in the period of high temperature in summer and autumn, which mainly harms the leaves. The application of phosphorus and potassium fertilizer during planting can improve the disease resistance, strengthen the ventilation and light transmittance between plants, and prevent the disease. On the other hand, the yellow-winged fennel borer and the yellow Phoenix butterfly mainly harm the planted leaves, buds and fruits, which can be controlled by spraying trichlorfon or dichlorvos.

Generally speaking, medicinal herbs Fangfeng is very good to grow, as long as select a good site, select a good seed, evenly sow into the soil, and finally do a good job in the management of water and fertilizer, inter-seedling, loosening soil and so on.