Cypress cutting propagation

Cypress cypress is beautiful, elegant and widely used. Due to its strong resistance to harmful gases and dust, it is particularly suitable for greening in polluted areas. Over the years, we have used cutting propagation of Cypress, and the survival rate is generally around 90%. 1. Cutting time: There are two cutting times per year. From early February to early March, late October to mid-November. I think the spring cut is the best time. 2. Seedbed: should be chosen to facilitate drainage, ventilation and ventilation. The surface width should be within 80 cm, the groove width 50 cm, the ditch depth 40 cm, and the length of the nursery bed should be about 15 meters. 3. Cutting matrix: The soil of the cutting bed must be clean, and it must be ventilated and hydrophobic so that the cuttings can have sufficient water and sufficient air to help the active reproduction of the rhizobial tissue and the generation of new roots. 4. Cuttings: The length should generally be between 15 cm and 25 cm. It is best not to use long sticks. It is best to use 2 to 3 years old branches. The base of the cuttings is cut into horseshoe shapes. After the cuttings are cut, use ABT rooting powder No. 1 or No. 2 and pharmaceutical alcohol solvent to mix and add 5 to 10 kg of water. According to the instructions, insert the cuttings for 2 to 8 hours. If it is mass-produced or rainy, it can be temporarily stored in yellow sand. 5. Post-insertion management: spring cuttings due to large temperature difference between day and night, in order to increase the temperature of the cuttings, as soon as possible to grow rhizobial tissue, should be used to cover the bamboo ring and cover the plastic insulation. The maximum temperature is about 25°C, which exceeds the ventilation or shading measures. The minimum temperature of about 10°C during the day should be removed. Moisturizing is best to maintain mist, disable water pouring, air humidity is maintained at 60% to 70%. At the turn of spring and summer, special attention should be paid to the dry hot winds of the past few days. The nursery bed is best to use a bamboo curtain or shade net to block it from the north. In the fall, it is necessary to pay attention to the cold dew of the past few days. Special attention should be paid to moisturizing. Blades should be sprayed with water. It is best to spend 2 to 3 hours during the day. In the hot summer season, it is best to cover two shading nets. The first level is 170 cm in height, and the second level is 50 cm higher than the first level. China Agricultural Network Editor

Nootropic Products

In China, nervous system drugs are also one of the drugs with the most rapid sales growth in recent years. In 2002, nervous system drugs occupied 5.9% of the entire pharmaceutical market share, and the total sales amount increased by 9.4%.
With the increasing trend of urbanization and aging, the elderly population in China has exceeded 120 million, and the incidence of geriatric diseases, especially mental diseases, is increasing year by year. With the increase of residents' income, the elderly's requirements for quality of life also increase. As a result, the demand for drugs to treat mental illnesses such as Alzheimer's has soared. In WHO drug classification, psychotropic drugs and nootropic drugs are grouped into one class. We briefly analyzed the development trend of this class of drugs through the clinical drug use data collected from more than 300 domestic key hospitals by Chinese Pharmaceutical Association.
The overall market size of this class of drugs is about 1.22 billion yuan, the consumption sum increased by 5.0% in 2002, but the sales quantity increased by 11.2%. The main reason why the consumption sum did not increase with the sales quantity is that several main varieties of this class of drugs, such as piracetam, cobalt bin amide and ginkgo biloba leaf, etc. In 2002, the price of selling units fell sharply due to bidding. Among these drugs, ginkgo biloba preparation occupies the largest market share, accounting for more than 1/3 of the market share, ganglioside ester and cobalt bin amide combined also occupy nearly 1/3 of the market share, piracetam and other "sitan" drugs occupy nearly 10% of the market share, the rest of the drugs occupy less than 5% of the market share. At present, more than 20 ginkgo leaf production enterprises, piracetam production enterprises more than 70, have entered the stage of price competition, profit repeatedly diluted.
In the first-line varieties, except ginkgo biloba leaves preparation maintained vigorous vitality, the growth of other varieties were weak, especially the traditional variety piracetam suffered from bidding

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