Since 1997, we have introduced 13 varieties of alfalfa at home and abroad, including WL320, WL323, Queens, FD2, and FD45 varieties introduced from the United States and Canada. The adaptability in our country is higher than that of Baofeng and Wugong. The domestic characteristics of Huaiyin, Jinnan, No. 1 Grassland, No Oak, etc. are now good to briefly describe the main characteristics and cultivation points of these five foreign varieties of alfalfa.
First, the main features
1. The comparative test of high yield for several years showed that the five imported varieties of alfalfa were more than the domestic varieties, and the average output of alfalfa was 59.2% higher than that of domestic varieties, which was an increase of 59.2%. 34.30 to 85.5%. Among them, two types of FD2 and FD4 introduced from Canada performed best in the local area.
2. Stress resistance These varieties generally grow better under local climate conditions, showing resistance to cold and drought, and heat resistance is better.
3. After analyzing the hay quality of five varieties of hay, the crude protein content of the plants is between 18.4% and 21%, and the quality is good. It is suitable for the feed of various livestock and poultry.
Second, cultivation points
1. Sowing of these varieties can be sowed in spring, but also in autumn, spring sowing can be planted in mid-March, autumn sowing can be sown in September. Due to the lower temperature and less rain during autumn sowing, weeds are significantly reduced and grasses are not easily formed. Therefore, autumn is generally preferred.
2. The basal fertilization of these varieties is perennial, so it should be enough basal fertilizer, combined with the application of compound fertilizer. Basal fertilizer generally applies more than 100O kg of organic fertilizer per mu, and 50-100 kg of special compound fertilizer for earthworms.
3. Lime adjustment Soil pH is planted in acidic soils with a pH value of 6 or less. Lime and lime 100-300 kg per acre can be used to adjust the pH of the soil.
4. The fine grained seeds of these varieties have a grain weight between 2 and 2.5 grams, and have a small grain size and a poor ability to stand. In order to increase the seedling production rate, fine earthworms should be planted and the width of the earthworms should be about 2 meters wide. Each row should be planted with 6 rows of rowworms. The row spacing should be 30 centimeters. The seeding rate per hectare should be 1-1.5 kilograms and the cover soil should be 1-1.5 centimeters thick after sowing.
5. Field management (1) Weeding. 7 days before sowing, 48% trifluralin was used to treat 40-50 kilograms of water per acre for soil treatment; in the grassy stage of 2-4 weeds, 45-90 ml per acre was used for 5% konjac herb. 40-50 kilograms of water is sprayed on stems and leaves for treatment. If there is damage to broad-leaved weeds, then 48% of Bentazon 150 ml can be mixed and sprayed per acre.
(2) Fertilization. After emergence, 2.5-5 kg ​​of urea per acre is used as seedling fertilizer. Every time after harvesting one time, fertilizer should be topdressed for l times, and urea 2.5-5 kg ​​per acre. Every year before winter, compound fertilizer or calcium magnesium phosphate fertilizer is applied for about 25 kilograms.
(3) Control pests. During the whole growth period of alfalfa, it is necessary to pay attention to controlling aphids and cabbage caterpillars. Alfalfa is not tolerant to drought, and it is prone to cause dead seedlings due to stagnant water. Care should be taken to prevent the occurrence of waterlogging.
Safflower yellow can significantly inhibit ADP-induced platelet aggregation in rabbits, and also has a very obvious depolymerization effect on ADP-aggregated platelets. When the dosage was 0.22g/ml, the inhibition rate of aggregation and depolymerization reached 85.9% and 78.9% respectively. These effects of safflower yellow were enhanced with the increase of dosage. Safflower yellow has a very significant inhibitory effect on experimental thrombosis in rats, the inhibition rate is 73.4%. Because the thrombus material formed on the silk line is platelet aggregates, the reduction of wet weight of thrombus is obviously the result of drug inhibiting platelet aggregation. It is consistent with in vitro experiments that safflower yellow can inhibit platelet aggregation induced by ADP. Safflower yellow also significantly prolonged plasma recalcification time, prothrombin time and coagulation time in rabbits. It shows that it can affect the coagulation system both in vivo and in vitro. In addition, safflower oil can reduce blood lipid.
Red Flower Tea
Red Flower Tea,Safflower Petals,Dried Safflower Petal,Dried Safflower Petal
Lixian Spring Pharmaceutical Co., Ltd. , http://www.lxctyy.com