In winter, overwinter pasture provides abundant green forage for livestock and poultry, which makes up for the shortcomings of inadequate supply of forage grass for livestock and poultry in winter. At present, the main varieties of overwintering forage grasses are: multi-flowered ryegrass grass, winter grazing 70; legumes of alfalfa, milk vetch, arrow tongue peas and so on. Overwinter pasture should pay attention to the following issues when managing and using it in the field.
The appearance is tan, and the cork is red-brown at the flaking; there are intermittent stripes on the branches, nodules are enlarged, and the shape is like a bead. Most of the hard and delicate roots and fibrous roots are born, and some surfaces are smooth and smooth, such as stalks. It is commonly known as "crossing the river branches" or "crossing bridges"; there are brown scales on the upper part, and there are residual stems or petioles that have not been cleaned at the top. The quality is firm and hard, the section is irregular, the skin is dark brown, the wood is golden, the rays are cracked, the central pith is red and yellow, and occasionally hollow. Odorless, very bitter taste, chewing saliva can be dyed red and yellow. It is better to use fat, beaded, solid, red-yellow, no residual stems and fibrous roots.
Valuable Medicinal Plants,Nature Chinese Herbs Radix Coptis,Coptis Chinensis Root Extract,Crude Medical Coptis Chongqing Taisun Pharmaceutical Co., Ltd. , https://www.taisuncoptis.com
top dressing
Sufficiency of water and fertilizer can significantly increase the tillering of forage pastures, promote the robust growth of their seedlings and root development, and enhance the cold resistance of overwinter pastures; if water and fertilizers are insufficient, poor growth occurs. Therefore, based on the application of basal fertilizer, winter and early spring to top dressing, usually 7.5-10 kg of urea per acre. In addition, every time you cut a hoe, you must top-dress one time. Each time, you can apply 6-8 kg of urea. Some overwinter pastures (such as Ziyunying) combined with the application of phosphorus and potassium fertilizers will have better results, can significantly promote the growth of stems and leaves.
Weeding and weeding
Overwinter forage grass grows slowly at the seedling stage and has weak ability to compete with weeds. The tall weeds not only reduce the pasture yield, but also affect pasture winter. Therefore, weeding should be done 1-2 times in time. Return to green in early spring and after each cutting, cultivating loose soil and eradicating all kinds of weeds. After spring, the winter grazing 70, multi-flower ryegrass tiller, grow fast, can inhibit weeds, generally no longer need cultivator. Dongmu 70's suppression of the root soil before winter can promote its tillering and improve its cold resistance; if the winter animal husbandry 70 appears prosperous phenomenon, it is necessary to skim once in the winter before 20-30 days to suppress its violence.
Pest Control
Overwinter pastures (such as Dongmu 70 and Lolium multiflorum) are vulnerable to pests and insect pests such as armyworm and aphids. They must be sprayed in time to prevent and control pesticides such as killing and killing. The disease most affected by alfalfa is sclerotinia, and it is prone to such diseases when the soil is wet after early spring rain. It is possible to apply quicklime powder on the ground or spray carbendazim on alfalfa plants for prevention and treatment. Arrow peas are vulnerable to locusts from early spring to flowering, and can be sprayed with dimethoate, enemy killing pesticides for prevention and control.
Ditching drainage and irrigation
Grazing grasses (such as Dongmu 70, ryegrass, and ryegrass) have strong resistance to fleas and can tolerate short-term over-wet environments and ground water. If the weather is dry, pouring frozen water before wintering will help the pasture winter and return to green. Legumes (such as arrow peas, milk vetch) are generally not resistant to water stains and should not contain water. The growth of forage grasses in low-lying fields or poorly drained fields can easily lead to poor plant root development. Excessive waterlogging can easily cause rot-root dead seedlings. Therefore, it is necessary to pay attention to trench drainage to reduce the groundwater level in areas with excessive rain or snow or low-lying and poor drainage.
Castration
Overcast winter pastures should be castrated in stages depending on the feeding target. When feeding rabbits, it can be cut when the grass grows to 30-60 centimeters. When cattle and sheep are fed, they are generally castrated at the heading and flowering stages, and generally stay about 10 cm.
Silage
In order to ensure the quality of silage pastures, forage grasses can generally be cut during the heading period, and the cut pastures are cut to a length of about 10 cm, and the water content is kept below 70% for silage fermentation.
Drying hay
You can choose to grind on sunny days for more than two consecutive days, pluck them into thin layers on the ground and dry them until the moisture content is 14%, and store them for feeding when the winter and spring are short of grass.