Leymus chinensis, also known as alkaloids, is one of the important building blocks on the eastern steppe meadow and arid steppe in the grasslands of Eurasia. China's Songnen Plain and the eastern part of Inner Mongolia are its distribution centers and are also distributed in Hebei, Shanxi, Henan, Shaanxi, Ningxia, Gansu, Qinghai, and Xinjiang provinces (autonomous regions). Leymus chinensis is most suitable for planting in the northeast and north China provinces (autonomous regions), and grows well in cold and dry areas. Spring returned to early morning and late autumn yellow, can provide more green feed in a longer period of time.
Economic Value
L. chinensis leaves are abundant, nutrient-rich, and palatability is good. All kinds of livestock are fond of eating all year round, and they have the reputation of “fine grain for livestockâ€. Herdsmen describe it as saying: “Lycao has oily properties. When it is used to feed livestock, it is not fed or fed.†Before the flowering period, its crude protein content generally accounts for more than 11% of dry matter, and the period of confinement is as high as 18.53%. Rich in carotene content. Each kilogram of dry matter contains 49.5 mg to 85.87 mg of carotene. After L. chinensis is prepared into hay, the crude protein content can still be maintained at about 10%.
L. chinensis is aromatic, well palatable and resistant to storage. The yield of Leymus chinensis is high, and the potential for yield increase is large. Under good management conditions, the average yield per hectare ranges from 3,000 to 7500 kilograms of hay and 150 to 375 kilograms of seeds.
L. chinensis has very strong penetrating ability and can form a strong root net. It is a very good soil and water conservation plant. The stalk of Leymus chinensis is a good papermaking raw material.
Characteristic characteristics
Leymus chinensis is a grass perennial herb. It has a well-developed underground rhizome, with a root depth of 1 m to 1.5 m, and is mainly distributed in soil layers of more than 20 cm. Stems erect, sparsely plexiform, with 3 ~ 7 nodes, plant height 50 cm ~ 100 cm. The leaves are thick and hard, flat or in-rolled, 7 cm to 19 cm long, grayish green or grayish blue-green.
Leymus chinensis is cold-resistant, drought-resistant, salt-tolerant, and resistant to soil. It has a wide range of adaptation. Born in the open plains, rolling hills, riverbanks and saline lowlands. Winter -40.5 °C can safely winter, grow well in areas with an annual rainfall of 250 mm. Leymus chinensis moist sand sandy chestnut soil and chernozem, can be grown at pH 5.5 ~ 9.4, the optimum pH value of 6 ~ 8. It also grows well in poorly drained meadow soil, salinized soil, and alkalized soil. However, it is not resistant to flooding, and there will be a large number of deaths in the long term. Leymus chinensis is lush in stems and leaves in wet years, often without earings. L. chinensis has developed rhizomes, latent shoots on rhizomes, and strong asexual regeneration ability. Early spring return to early morning, rapid growth, late fall dormancy, grass use a long time. Fertility period of up to 150 days. The growth period is as long as 10 to 20 years.
Cultivation Techniques
Soil and cultivation Leymus chinensis is selected laxly, and it can be planted except for barren slopes and low-temperature lands. Soils with deep soil and high organic matter and sandy loam are the best. Requires good land preparation and good site preparation. Falling to the ground, the depth of more than 20 cm, immediately after the collapse and pressure ground.
The long-term fertilization of Leymus chinensis requires a long period of time, rapid growth, high yield, and need for more fertilizer. It is necessary to apply sufficient basal fertiliser and timely fertilizer. Semi-mature composting of basal manure, which ranges from 37,000 to 45,000 kilograms per hectare, will increase the rate of seed setting, increase seed production, and improve seed quality by applying phosphate fertilizer and boron fertilizer.
Seed sowing A. chinensis seeds must be selected before sowing, and the purity, cleanliness and germination rate of seeds should be checked to meet the sowing quality standards. Leymus chinensis can be planted in spring, summer and autumn, and spring sowing in late March or early April to sow planting. Summer sowing is planted in late May or early June. Autumn sowing must not be later than late August. The sowing amount per hectare is 37.5 kg to 42.5 kg, the spacing is 15 cm to 30 cm, and the covering soil is 2 cm to 3 cm. After the sowing, the crackdown will be timely to facilitate the emergence of seedlings.
Leymus chinensis is mixed with other crops such as alfalfa, sand savanna, and wild peas to increase its yield and quality as well as soil fertility.
Field Management The growth of Leymus chinensis is very slow at the seedling stage and it is easily inhibited by weeds. Therefore, weeds must be eliminated promptly. The topdressing is to be carried out after rapid growth to rapid growth. Immediately after top dressing, water should be poured. After the L. chinensis grows for 5 to 6 years, it should be updated and restored to productivity.
How to use
Sheep grassland can be grazing, green feeding and silage, but it is mainly used for preparing hay.
After grazing in mid-April, the plant height began to be grazing after about 30 centimeters in height, and after heading in mid-June, the texture was rough and the palatability was reduced. Grazing should be stopped. Grazing sheep, cattle, and horses are usually used, and pigs and geese can be grazing during the young period. It is necessary to designate rotational grazing and prevent the replay of pastoral animals. Each grazing can be about 1/3 of the total output.
The preparation of hay was performed at the time from booting to early flowering, and the roots accumulated more nutrients. After drying for one day after cutting, pile up a small pile of loose and loose, and slowly dry it. When the moisture content drops to about 16%, you can integrate large piles and prepare to transport it back to storage. Green Larch Hay, a cow can feed 15 kg to 20 kg on a daily basis. Short cut or whole feed is good. Leymus chinensis hay can also be made into grass powder or grass granules, grass blocks, straw bricks, grass cakes, as a commodity forage.
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