Malvacea is a perennial herb of Ranunculaceae. Its tuberous root can be used as medicine, which has the effects of clearing away heat and toxic materials, reducing swelling and resolving hard mass. In addition, it also has health care function and is suitable for both medicine and food. So how should the sunflower seeds be planted? Let's take a look.

1, land selection and soil preparation

When planting semiaquilegia, you should choose plots with convenient irrigation and rich organic soil. If it is a plain area, you should adopt the cultivation method of high border, and the width of the border is between 1- 1.2 meters. Apply decomposed farmyard manure 1000 kg per mu, combined with nitrogen and potassium fertilizer 90- 150 kg as base fertilizer. It can be used as a nursery in one corner of the plot, and the nursery requires loose and fertile soil and good drainage.

2. Breeding method

Sunflower can cultivate seedlings through seed propagation and cutting propagation. It blooms in spring and bears fruit in summer. After collecting seeds, it can be sown, which can be sown in autumn or spring. After sowing for more than ten days, it can germinate, and when the seedlings grow 5-6 true leaves, it can be planted. Cutting propagation is generally used to cultivate seedlings in a large area. When the plants grow, cuttings are taken, shallow ditches are made on the whole seedbed, and the row spacing is about 10 cm. Then, 8- 10 cm branches are cut off from the plants, and the lower leaves are removed, leaving 2-3 upper leaves, which are inserted into the ditches according to the plant spacing of 6 cm, and the depth is two-thirds of the cuttings. Covering the sun-shading net will take root and sprout in about one week. At this time, the sun-shading net can be removed and fertilized once, and the seedlings can be planted when they grow to more than 10 cm.

3. Field management

The best planting time is in the end of March, and the planting density depends on the fertility of the soil. If the fertility is good, it should be planted densely, otherwise it should be planted sparsely. Before closing the ridge, we should loosen the soil and weed in time to promote the growth of the plant. Sunflower is a perennial plant, so the demand for fertilizer is extremely high if it wants to grow fast and yield high. Therefore, in the growing season, it is necessary to topdressing once every half month, and apply human manure 1000 kg and compound fertilizer 30 kg per mu, and topdressing decomposed farmyard manure 1000 kg or more per mu in the harvest season. The principle of watering is dry and wet. Generally, it is watered once a week in sunny weather, twice a week in drought, and drainage measures should be taken in rainy season.

4, pest control

Pests and diseases are the main factors that harm the yield and quality of Malva. First of all, we should do a good job in agricultural control, adopt high-border cultivation methods, increase the application of phosphorus and potassium fertilizers, and improve the disease resistance of plants. When root rot occurs, Anke manganese zinc or carbendazim can be sprayed or irrigated; For leaf spot, anthracnose and Sclerotinia sclerotiorum, mancozeb can be sprayed for control; Pesticides such as trichlorfon and dichlorvos can be sprayed for pest control.