Absorbent is also called absorbent. This substance can make the active ingredient adhere to the surface of its particles, and make the liquid trace compound additive become a solid compound, which is beneficial to the uniform mixing. It is a solid substance which can adsorb some of its components effectively from gas or liquid. It has large specific surface area, suitable pore structure and surface structure, strong adsorption capacity for adsorbate, generally does not react with adsorbate and medium, is easy to manufacture and regenerate, and has excellent adsorption and mechanical properties. Adsorbents are generally used in industrial production, so adsorbents can be divided into six categories according to the common industrial use.
1. silica gel, it is mainly used for drying, gas mixture and separation of petroleum components.
2. alumina, it is also a dehydrating adsorbent.
3. activated carbon is mainly used for water treatment, decolorization and gas treatment.
4. polyacrylamide is mainly used for domestic sewage and organic wastewater.
5. zeolite molecular sieve for gas adsorption separation, gas and liquid drying;
6. carbon molecular sieves mainly act as transport channels, while micropores play the role of molecular sieves.
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2. The growth of adventitious roots is easily induced in the stems of the nursery-growth terra cotta. Therefore, the seedlings produced on the production of Gongmu are generally propagated by cutting propagation instead of seed sowing. In southern China, 3 to 6 months or 10 to 11 months should be selected for cutting propagation. During this time, the external environmental conditions are suitable for the growth of the plants and the rooting is easy. Of course, if other measures are taken at other times, this can be done. When cutting, the stem diameter was selected to be 0.4-0.6 cm from the mother plant, and robust shoots of the year were used as seedling cuttings. Truncate the cuttings to 10-12 cm, remove the leaves or leave only the top 1 or 2 leaves and insert them into the nursery bed. Cutting depth of about 5 cm, spacing 6-8 cm 6-8 cm. Bed soil can be sand or sandy loam. Pouring enough water, hot season, to buckle a small shed, covering the shade net, in order to facilitate insulation moisturizing. Nursery should always be watered to keep bed soil moist. When the temperature in the shed exceeds 30°C, the sides are ventilated and cooled. After 15 to 20 days, when the cuttings take root, the colonization is removed. In spring in South China, cuttings can also be inserted directly into the cultivation of fields, which can save labor and labor.
3. Site Preparation, Planting, and Planting Planting in high rainfall or well-drained plots is preferred in rainy areas. It is 20 to 30 centimeters high and 100 to 200 centimeters wide. Plant spacing 30-40 cm 40 cm. In southern China, farmers often use wooden fences to fence gardens and harvest young shoots regularly, so they will call it "fence dish."
4. Before fertilization irrigation and water planting, at the same time as the soil preparation, apply organic fertilizer 3 to 5 kg/m2, calcium superphosphate 30 to 40 g/m2, and mix fertilizer and soil uniformly. After the slow seedlings, topdressing diluted feces (1:8 to 10) is performed once. After that, every 10 to 15 days, topdressing the diluted feces once. After each harvest, top dressing is performed once. Water should be poured during colonization, and the amount of watering and times of watering should be determined according to the weather conditions and the period of plant growth. In South China, the autumn is the dry season of the year. During this period, special attention should be paid to prevent soil drought. In spite of its adaptability to the palace trees, it can be extensively managed. However, the lack of soil moisture will cause the product output to decline and the quality to deteriorate. The principle of moisture management is to keep the soil in a moist state at all times. Only in this way can the plants grow normally.
5. Intertillage, weeding and plant adjustment After planting, the plants are still small. At this time, care should be taken to prevent grass shortages so as not to affect plant growth. In order to promote hair rooting, loosen the soil once after loosening the seedlings, and loosen the soil to a depth of 3 to 5 cm. Remove the grasses near the seedlings by hand. Because regular watering can make soil compact, objectively it also requires frequent cultivating tillage.
As the plants grow, the crown becomes larger. In order to improve the conditions for ventilation and light transmission in the field, increase production, improve quality, and facilitate field operations, plant adjustments are needed. The branches that grow too luxuriantly are to be thinned, and some old leaves need to be removed in time. To go to the top in time to promote collateral development. Keep the plant height 1.4 to 1.6 meters.
6. Diseases and Pests Prevention Muji has almost no pests and diseases during her life. Therefore, Gugongmu is a kind of pollution-free vegetable that is worth developing vigorously. In southern China, Gypsophila is sometimes harmed by scale insects and snails. Once pests occur, they must be promptly treated with pesticides or humans must be killed. 7. Harvesting Gypsophila is a perennial vegetable that can be harvested for many years at a time. To pick 10 ~ 15 cm young shoots is appropriate. In the year of colonization, when the plants were up to 30 cm or more, they could be gradually harvested. The first year of production is low. In the second year, when the plant height exceeds 1 meter, the number of branches increases and the yield gradually increases. After production, the yield is basically stable. If properly managed, there is no need to change the garden from 10 to 15 years.
The main harvest season of Gugongmu in southern China is from April to November. When harvesting, generally pick only 10 to 15 cm long shoots.
The key points on the cultivation techniques
1. Cultivation season South China mainly produces annual production in open areas. If other regions can take appropriate measures to ensure safe wintering in the winter, then they can also grow their crops and market them.