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Ecological characteristics of Siberian icegrass

Siberian ice grass is naturally distributed in sandy soil or sandy loam areas, and is called a typical plant on sandy soil. In the hilly areas of western Siberia, central Asia, and wavy sand and desert areas, Siberian ice grass is often Dominant plants. It is reported that in central Asia, when the sand-soil ratio is between 1:4 and 1:1 (the average is 1:6), Siberian icegrass can cover the ground well. Siberian leather can grow better when the soil contains 0.025-0.05mm soil particles, at 80.5-95%. Resistant to slight alkalinity, higher yield can be obtained when the pH is 7.5-8.7. It is cold-resistant and drought-resistant, and can survive the winter well in the temperate zone of my country. It grows well in the Qinghai-Tibet Plateau at an altitude of 2300-3800m. Its drought tolerance is slightly inferior to that of desert wheatgrass and crown wheatgrass, and its transpiration coefficient is generally between 212 and 386. It can grow well in areas with annual rainfall of 200-350mm. Siberian ice grass is not resistant to high temperatures and basically stops growing when the summer temperature in Beijing reaches 36-38°C. Therefore, Siberian icegrass has broad application prospects in establishing artificial grasslands in the alpine, arid and semi-arid areas of my country, improving natural grasslands, and can also be used in improving and greening deserts and wastelands. Siberian ice grass has been planted on trial in most areas of northern my country and can grow and develop well. Taking Beijing as an example, it usually turns green in mid-March, grows rapidly in early spring, is vigorous, and has a dense grass layer. It joints in mid-April, boots in early May, heads in mid-May, enters the flowering period at the end of May and early June, and matures the seeds at the end of June. The seeds are easy to fall off when mature, so they should be harvested in time when the wax is ripe. The reproductive period is about 105 days. The withering period is in late December, and the annual growing period is about 280 days. The stems and leaves of Siberian ice grass are soft, and the nutritional content is shown in the table (2-1, 2-2 are liked by a variety of domestic animals. It can be grazed in early spring and late autumn, and can be cut and dried to make hay, or can also be used for green feeding. According to the Animal Husbandry Institute of the Chinese Academy of Agricultural Sciences Planted in the experimental field, it can be mowed three times a year, with a fresh grass yield of 170 kg per mu. The seed yield is about 35 kg per mu. In addition, Siberian icegrass can also be mixed with other grasses and leguminous grasses to establish mixed sowing grassland, such as with Mixed sowing of pastures such as bluegrass, bromegrass, alfalfa, and sandalwood can establish an artificial grassland for both mowing and grazing. In the second to sixth years, this kind of grassland can produce 350-600kg of hay per mu, and with irrigation conditions, it can produce 500-500kg of hay per mu. 750kg. Siberian icegrass is easier to plant. The land must be plowed and leveled before sowing, and the soil must be finely ground. Under suitable moisture conditions, it can be sown in spring or autumn. In the Northeast, it is usually from late June to early August. From late August to early September, the seeding rate is 0.75-1 per acre. The sowing method is mostly drill sowing, with a row spacing of 20-30cm. The sowing depth depends on the moisture and soil quality. The sowing depth can be 3-4cm in sandy soil or sandy loam, and the soil quality can be heavy. Appropriate shallow sowing. Siberian icegrass seedlings are susceptible to weed damage and need to be intensively cultivated and weeded during the seedling stage. In addition, although Siberian icegrass is drought-resistant and barren, proper water and fertilizer management can significantly increase yields.