How does spring Amomum control pests and diseases? Spring Amomum is one of the four major South medicines in China. It has a very high medicinal value. It is mainly used to treat chest fullness, stomach and fruit stagnation, and vomiting. However, due to the serious shortage of supply, the demand for the cultivation of spring arborescens in the Chinese herbal medicine market has been carried out.
1 Undergrowth of Amomum villosum L.
1.1 Growing environment
Spring hawthorn has higher requirements for water and temperature in the growing environment, and prefers climatic conditions of high temperature and precipitation. Therefore, Guangdong and Fujian are more suitable for planting. Planting spring amomum under the forest is usually combined with some other plants, which will greatly promote the regulation of light, moisture and pollination.
1.2 Growth temperature
Spring sand kernel has strict requirements on growth temperature, suitable growth temperature is 22-28 degrees, spring hawthorn pollination suitable temperature is 22-25 degrees, can be temporarily adapted to low temperature environment of 1 ~ 3 °C. When the temperature is higher than 25 degrees, the growth is slow. When the temperature is lower than 2 degrees, it will cause the seedlings of the newly planted spring saplings to freeze and die, and reduce the germination rate of spring germination.
1.3 Requirements for light
Spring Amomum is a semi-shade plant suitable for diffuse light. When planting spring Amomum under the forest, if the direct light is too strong, the plant grows slowly, and in severe cases, it will cause burn damage to the leaves. Therefore, in the control of the growth environment of spring Amomum villosum, the degree of shading should be controlled at 50% to 70%, and the shade at the flowering and seedling stages should be maintained at 70% to 80% and 50% to 60%.
2 Planting techniques of Amomum villosum L. under the forest
2.1 Choosing the right planting land
When planting under spring eucalyptus forest, the requirements for land will be relatively high. Generally, fertile land is used, and in the land with long fertility, it is also necessary to consider the field of convenient irrigation and drainage. The terrain requirements are not high, and the flat land and the valley can be planted. The soil is made of brick red soil and soil suitable for spring alfalfa cultivation conditions.
2.2 Leveling the planted land
Planting spring Amomum under the forest should pay attention to the dressing of the planting land. For the sparsely populated trees under the forest, it is necessary to supplement the planting of the seedlings, or to transplant the seedlings, and to plant some plants with flowering results. Conducive to the pollination of spring Amomum.
2.3 Propagation techniques for planting spring Amomum under the forest
The planting of spring Amomum vulgaris in the forest is generally carried out by means of sub-plant propagation. The selection of breeding plants should be carried out by using relatively robust plants for ramets propagation. It is best to have 2 to 3 stolons on the propagated plants, in the leaf requirements of the seedlings. It is best to have 5 to 10 relatively strong seedlings as seedlings for plant breeding. The season of breeding technology is spring and autumn, the spring breeding time is in March-April, and the autumn breeding is in September. In the selection of the covering, grass covering can be adopted to keep the planting ground moist.
2.4 Management techniques for the field when planting spring Amomum under the forest
2.4.1 Adjustment of the shade under the forest
When planting spring Amomum under the forest, the shade should be adjusted with the growth of spring amomum. When the shade is too large, human intervention is required to cut down the excess branches under the forest. Otherwise, the shaded trees should be replanted in time.
2.4.2 Control of soil moisture
In the seedling stage and flowering stage of spring Amomum villosum cultivation, irrigation under the planting forest should be carried out in time. In the rainy spring, the number of irrigation of spring amomum should be appropriately reduced. In dry weather, the irrigation of spring amomum planted under the forest should be strengthened.
2.4.3 Pest Control
The main diseases of spring Amomum vulgaris are blight, fruit rot and stem rot, etc. The main treatment is prevention, and the production requirements of pollution-free agricultural products are followed. When killing pests and diseases, choose low-toxic pesticides.
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