1, soil preparation and fertilization

Lotus is planted for many years at a time and harvested many times a year. Therefore, it is advisable to choose high-lying and dry sandy loam, which can not only discharge energy but also irrigate, and low-lying land is not suitable for planting. Low wetland planting requires high border, and high dry land can be used as low border. The soil turns 30 ~ 40 cm deep. The furrow width is 2 rows 1.5m, 1 row 0.9m. Before planting, the depth of planting ditch is about 3~5cm, the decomposed manure is 4.5× 104kg/hm2, the calcium superphosphate is 450kg/hm2, and the potassium sulfate is 750kg/hm2, which are first applied into the planting ditch.

2. Seedling breeding

Sowing can be used to raise seedlings, and underground stems can also be used to propagate. Generally, the underground stem is divided and propagated, and the underground stem is dug out, and 2~3 buds are cut off as propagation materials. Seeding seedlings with seeds has low germination rate and long seedling stage. In the case of sufficient seed blocks, seed propagation is generally not used.

Step 3 plant

After the overground part withers, it can be planted before the underground rhizome germinates, and it can be planted in southwest Hubei and other places from the middle and late period of 1 1 to February of the following year. In the meantime, planting early is better than planting late. In spring, when it was planted, it grew badly. The underground stems that grew in those years were small and there were few flowers. If the plant is planted in June 5438+065438+ 10, buds and flower buds will grow in the next year, and a certain yield can be obtained.

Seeding and seedling raising should be carried out in mid-March, at the seedling stage 180 ~ 220 d, the spacing between plants on the planting ditch is 60~70cm, the underground stems are laid flat on it, the buds are up, the seedlings are 2.7× 104~3.3× 104 plants /hm2, and the soil is covered and then watered 3.0×/hm2.

disease control

The plants of Cynanchum auriculatum have a special smell, which can drive away pests. So there are few pests. Sporadic planting, fewer opportunities for the spread of germs and fewer diseases. Only a few areas have been found to be harmed by decay. The disease occurs during the high temperature in summer and autumn, and the soil is wet and poorly ventilated, so it is easy to get sick. The underground stems of diseased plants rot, the leaves turn yellow, and the plants rot and wither. Prevention and control methods: do a good job in ditch cleaning and drainage to prevent water accumulation in the field. After the onset, implement crop rotation and crop rotation. Soaking seeds with1100,000 units of agricultural streptomycin 100 kg of water for 5- 10 minutes before sowing can effectively control Yang Zai rot.

Extended data 1, medicinal value

Yanghe can not only be eaten as a vegetable, but also has the functions of promoting blood circulation, regulating menstruation, relieving cough and resolving phlegm, reducing swelling and detoxifying, promoting digestion and strengthening stomach. Has special effect on treating constipation and diabetes, and has high medicinal value.

Yanghe is rich in amino acids, protein and cellulose. The cellulose contained in Yanghe is also a polysaccharide nutrient that does not produce heat energy. If eaten regularly, it is beneficial to keep the digestive tract unobstructed and maintain normal defecation function. Can be used for treating constipation, promoting digestion and invigorating stomach, and has special effects on diabetes.

2. Economic value

Aromatic oil can be extracted from roots and used as the essence of low-grade soap.

3. Crop cultivation

"The frost is heavy and the yellow flowers are all over the mountain, and the autumn wind smells the lotus flowers all over the mountain." Lotus, commonly known as Guanyin flower, lotus ginger, wild ginger and epimedium, is a perennial herb of Zingiberaceae, which is mainly distributed in the valleys of southern provinces of China at an altitude of 600 m- 1500 m, and looks like bamboo. In spring and summer, the green leaves are swaying and lush. Whenever the autumn wind is bleak and the flowers are in full bloom, huge purple-red buds will emerge from the roots, which are charming and fragrant when they bloom, just like exotic flowers and grasses in full bloom.

References:

Baidu Baike Yanghe