Pentagonal Maple is a deciduous tree of Eucalyptus genus, which can absorb dust and harmful gases, secrete volatile bactericidal substances, and purify the air. Its bark is gray-brown or dark gray, with single leaves opposite, leaves with five cracks, inflorescences at the top, and flowers and leaves in the same place. With a beautiful tree and leaf color, it is an excellent tree species in urban and rural areas. The water content of the tree body is large, and the oil content is small. The litter decomposition is fast and it is not easy to burn. It is also an ideal fire-resistant tree species. Seed and seasoning Seedlings for collecting seeds should be high-quality, young plants collected in the fall from green to yellow-brown. After the seeds are harvested, they must be dried for 2 days to 3 days, and then dried after being mixed. Inspection and quarantine of seeds transferred from other places should comply with relevant regulations. Garden selection The nursery used for nursery should focus on the selection of sandy loam or loam with convenient transportation, flat terrain and well-drained water. The PH value should be 6.7-7.8. The nursery should also have certain irrigation conditions. Seed processing When the seeds are sterilized, the seeds are soaked in 0.5% potassium permanganate solution for 2 hours, removed and sealed for 0.5 hours. Then rinse again with water. When the seed germination uses stratification and germination, the seed and the wet sand with a water content of 60% to 70% are mixed in a volumetric ratio of 1:3, and the depth is 80 cm deep in the indoor container or the lean back lee and the high ground dryness. For a 100 cm storage pit, the length of the pit depends on the amount of seed. The bottom of the pit is about 10 centimeters wet and sand, and the mixture of seeds and wet sand is placed 10 centimeters to 20 centimeters away from the ground, and ditches are dug around to prevent water accumulation. After the seeds enter the pits, they should be checked once every 10 days to 15 days to prevent the sand in the pits from being dry, too wet, or the mildew of the seeds. Lamination time is 45 days to 60 days. Seeds can be sown when they have 30% cracks. Before sowing, if the seeds do not germinate and germinate, they should dig shallow pits (30 cm) on the leeward sunny side according to the above method, cover with plastic film, or be placed indoors (20°C ~ 30°C) to germinate. Seed germination using medium-temperature water immersion germination, the water will be poured into the container at 50 °C ~ 60 °C, and then stirring while pouring the seeds, after pouring the seeds, the water surface should be more than 10 cm above the seeds. Let cool for 24 hours, and change the water between 1 and 2 times. Remove the seeds and put them in the environment of room temperature 25°C～30°C, and wash them once or twice a day. After 30% of the seeds are cracked, they can be sowed. Seeding method When planting seedlings in the field, the site preparation is low or low. Seeding method for drilling, spacing 15 cm. The sowing depth is 2 cm to 3 cm. Sowing rate 225 g to 300 g/m2. After sowing, it can cover mulch or finely divided crop stalks. When container seedlings are raised, degradable mesh bags, paper bags, and plastic bottles are used as nursery containers. The common specifications are 510 cm, 812 cm, 1015 cm, and 1822 cm. The matrix can be used artificially to match light nutrient soil, and prepare 1:2 excrement and black sand as nutritious soil for bagging. Two to three seeds were sowed in each container and about 2 cm of earth was sowed after sowing. When the emergence rate reaches 40%, the cover should be removed. Covered with mulch, film should be promptly broken seedlings. Covered with crop stalks, remove the stalks in 2 to 3 batches. When the seedling height is 10 cm, the seedlings can be planted and the seedlings can be planted. The plant spacing is 8 cm to 10 cm. After Dingmiao, irrigation and fertilization once every 10 days to 15 days, apply urea 7.5 grams to 12 grams per square meter, or decomposed human excreta 750 grams to 1000 grams per square meter. After September, nitrogen fertilizer and irrigation were stopped. Timely cultivating and weeding, in addition to early, in addition to small, in addition to the principle of seeing the grass, in addition to every net. The main diseases in the seedling stage are damping-off and brown spot, which mostly occur in the rainy season from June to August. The pests are mainly aphids and occur at the turn of spring and summer. Seedlings Seedlings for afforestation in barren hills shall meet the following specifications: Container seedlings shall be planted in the rainy season with a diameter of more than 0.4 cm and a seedling height of 50 cm or more; 1-year-old seedlings shall have a ground diameter of 0.7 cm or more and seedling height of 80 cm or more; and 2-year-old seedlings shall have a ground diameter of 1.2 cm or more. 1.2 meters above the height. Seedlings used in landscaping should meet the following specifications: trunks above 3 meters in height, diameter at breast height above 6 centimeters, root width or soil ball between 45 centimeters and 55 centimeters; landscape forest with seedlings above 2 meters in height, diameter at breast height above 3 centimeters, root width or Earth ball 30 cm to 40 cm. For the classification of seedlings used in landscaping, the public standards are implemented in accordance with DB41/T308-2008. When adopting the gardening method, the bare roots are used in the dormancy period, and the soil ball is used in the growing season. The diameter of the soil ball should be 6 times to 8 times the diameter of the seedlings. The container nursery should bring the containers out of the garden, and the seedlings with the soil ball out of the nursery should be used. The straw rope or plastic rope is wrapped around the earth ball, and the bare root rooted out of the nursery stock root is muddy. Each 50 or 100 strains are tied. After lifting, they should be transported in time. During transportation, the seedlings and the carriages should be filled with soft materials to avoid damaging the seedlings. Concentrate Fish Oil,Lemon Flavor Fish Oil,Natural Lemon Fish Oil,Softgel With Fish Gelatin Weihai Baihe Biology Technological Co., Ltd. , https://www.biohighnutraceutical.com
Seedling management