First, a suitable environment Eucalyptus trees prefer a warm climate but are not tolerant to hot and humid, and the climate is overheated and poorly grown. Yunnan is mainly distributed at an altitude of 1,200-2,400 meters above sea level. Cold resistance is not strong. It can only withstand short-term low temperatures of about -7°C if it is at -5°C. After 2-3 days, different degrees of frost damage will occur. The light twigs will die, and the severe ones will die. The eucalyptus is hi light and a slight shade can affect the growth rate. Hi fertile wet acid soil. In a good environment in Kunming, the 1-year-old seedlings can reach 1.5-2 meters in height, 9 meters in 3-year-olds, 20-meter-high in 10-year-olds, 30-meter-high in 20-year-olds, and then grow slowly, and they can blossom and become strong after 6 years. 15 Years later into the fruit period. Second, sowing From November to December, seeds are planted and sowed in the spring of the following year. They can also be planted in July-August and planted in the same year. Each 100 kilograms of fruit can be seeded with 1.5 kilograms, with 2.8 grams of 1000-grain weight bluegrass and 1.5 grams of direct-dry alfalfa, and the seed germination rate is over 90%. 1, mother bed nursery. Choose fertile soil in the vegetable garden as a seedbed and plant it in mid-March, making it meticulously fine-grained and geographically wide, 1.2-1.6 meters wide. After soaking the seeds for 48 hours, the seeds were spread with fine sand and sown on a seedbed, covered with 1-2 cm of fine soil. After pouring the water, cover the membrane and excavate 7-10 days after sowing. The soil is kept moist, ventilated and prevented from burning at high temperature. When the seedlings grow to 5-10 centimeters in height, the seedlings are uncovered; when the seedlings grow to 30-40 centimeters in height, they should be transplanted on rainy days and become easy to survive. Transplanting is best in the middle of June in the Yuzhong area from early June to early July. 2, nutrition bag nursery. After bagging with nutrient soil, the soaked seeds are sown in the bag (2-3 capsules per bag), covered with a layer of fine feces, filled with water, and then covered with membranes to ensure proper ventilation and moisture retention. Set the seedlings during the growth period of the seedlings, pull out the weak seedlings and leave one in each nutrition bag. Until the seedlings grow to a height of 10-20 cm, they can be transplanted. Generally, seedlings are planted in early March and transplanted in the rainy season in early June. 3, seedbed management. After the emergence of seedlings, remove all weeds from the seedbed. Eucalyptus seedlings are prone to bacterial wilt, and 70% of enemy pine is used 500 times per acre (100 kg per acre) in the initial stage of disease. The seedling bed is sprayed or poured 2-3 times, each time interval is 10-15 days. . III. Transplanting and sapling management 1, transplanting. Transplanted after the start of the rainy season in early June. Pond depth 40 cm, diameter 40 cm, 300 plants per acre (plant spacing 12 meters), after planting poured enough water, soil is higher than the surface to prevent water rot And soil compaction, conducive to the survival of saplings. 2, fertilization and pest control. After survival, 50 kg of compound fertilizer per mu or 40 kg of calcium phosphate and 10 kg of urea are used for the application in Tong Zhou. Eucalyptus is susceptible to yellow ants. After transplanting and survival, use 10% diazinon granules per acre 500 grams or 3% phoxim 1 kg acre per acre mixed in the fertilizer, apply to the pond and the soil mix, can be Control yellow ant's harm. 3, sapling management. After the survival of the young trees should be banned grazing, timely weeding the weeds around the saplings, conditional loose soil, to keep the soil loose. After 2-3 years of saplings are planted, pruning is conducted once a year and the lower and lower branches are repaired, which is conducive to ventilation and light transmission to maintain the growth of the seedlings. After 4 years, the leaves can be extracted for aromatic oils. In summary, the cultivation and management of eucalyptus in the cultivation of strong seedlings and 1-2 years of sapling management after transplanting is critical, the management after the third year is mainly to trim the branches and cultivate the trunk into the material. Therefore, the economic, ecological and social benefits of planting eucalyptus are significant and have broad prospects. There are three main types of Rice. Royal Basmati Rice,Nutritious Rice,Medium Grain Rice,Short Grain Rice Ningxia Saiwaixiang Food Co., Ltd. , https://www.nxswxfood.com
In
GB/T 1354-2009 "Rice National Standards", there are only three types of
rice: glutinous rice, glutinous rice and glutinous rice.
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Packed
rice first look at whether the packaging is marked with QS mark,
product name, net content, production date and shelf life, quality
grade, product standard number and other information.
Look at the color and size of the rice grains in bulk to see if there are broken rice or yellow grains.
smell
Premium rice has a natural valley scent and no smell.
taste
New rice has a higher protein content and is harder than Chenmi.
Eucalyptus planting technology
The genus Eucalyptus is a member of the Myrtaceae family, native to Australia, and is mainly cultivated in Yunnan, Guangdong, Guangxi, and Western Sichuan provinces. Planted varieties are blue peony, straight-dry blue peony, lemon pod, big leaf hoe and view leaf type copper quinoa. 5 kinds of eucalyptus oil (aromatic oil) can be extracted from eucalyptus leaves, and leaves and essential oils can be used as medicine, which has anti-inflammatory, stomachic, and anti-inflammatory properties. Embarrassing and driving the wind. Wood is fine and resistant to decay, and heartwood is resistant to termites. It is widely used in construction, bridges, shipbuilding, docks, papermaking, mines, livestock pens, fuels, and other industries, with significant economic and ecological benefits. With the development of the western region and the implementation of the Yangtze River and Pearl River shelterbelt projects, the progress of the conversion of farmland to forests has been accelerating. The planting area of ​​eucalyptus has been gradually expanded and its prospects are promising.