There are many varieties of ryegrass, so for our winter pasture 70 ryegrass, it is a subspecies of the grass family rye genus Winter rye, which is an annual or over-annual herb that grows very similar to our wheat. Winter Pasture 70 can be planted east of 107° east longitude and north of latitude 25° north of the mainland, and can be sown in autumn or spring.
First, the growth characteristics of winter pasture 70 rye grass:
Winter Grazing 70 Rye Grass has the characteristics of cold resistance, disease resistance, good quality, strong adaptability, and almost no diseases and insect pests in the later stage, and can also be planted on moderately or less salty soils in coastal areas because of its strong salt tolerance.
Winter 70 ryegrass has high nutritional value, rich amino acid content, contains a variety of trace elements, winter 70 in the green stage dry matter is rich in high protein, fat, lysine and other nutrients, hay crude protein content is higher, an average of 15%, higher than the general nutritional value of ryegrass.
Winter Pasture 70 Rye grass has a well-developed root system and is resistant to severe cold. The seeds can begin to germinate at a temperature of 0.5 to 2.5 °C in the spring, and the summer temperature is planted within 30 degrees, and the optimal growth temperature of winter pasture 70 rye grass is determined to be 15 to 20 °C, which prefers cold and cool climates. Winter pasture 70 ryegrass survives at minus 25-30°C; The critical temperature to stop growing is 0.4 °C, but it is not affected by frost damage. Compared with its wheat crops, the tillering ability is strong and the root system is developed, which is also the reason for the hardiness.
Winter pasture 70 rye grass can make full use of the winter leisure season, half a year to increase the income of one season of pasture, mature growth period of 243 days, early April ear extraction, early June harvest seeds. Winter pasture 70 plants are tall and have large yields. The height of the plant is 1.5 to 2 meters, and the autumn sowing and good water and fertilizer can achieve 5000 to 7000 kg of fresh grass per mu.
Second, the planting method of winter pasture 70 rye grass:
1, sowing time: winter pasture 70 to autumn sowing, sowing period is very large, the northern region from July 25 to October 30 can be sown, to late August to mid-October is better, spring sowing in late February to mid-March can be. The difference between the winter temperature in the south and the north is large, and the maximum temperature can be sown if it is stable below 30 degrees, and the spring sowing can also sprout and grow at about 5 degrees. The optimal germination temperature is between 10 and 20 degrees.
2, sowing method: first according to the requirements of sowing wheat for land preparation, fertilization is based on base fertilizer, mu application of wheat compound fertilizer 40 kg; Sowing method can be sown, mainly strip sowing, easy to manage and harvest, row spacing 10 ~ 15 cm, sowing depth of 2 ~ 3 cm, strip sowing amount of 6 kg / mu, sowing the amount of seed recommended 10 kg / mu.
Note that the plant spacing of the sown seeds should not be too large, and the distance kept was similar to that of wheat. About 7 to 10 days after sowing, the growth is very fast, and the temperature can reach 2-3 cm/ day (in the case of abundant sunlight and sufficient water and fertilizer).
Winter Pasture 70 RyeGrass Seeds:
Winter Grazing 70 Rye Grass: Grain-fed and salt-tolerant cattle and sheep universal cold season forage, the whole country can be planted ¥25.5 purchase
Third, the field management of winter pasture 70 rye grass:
1. Watering: Irrigation is required in the case of relatively dry weather, combined with weeding and fertilization. Watering frozen water once in early winter and watering once when returning to green can continue to harvest pasture.
2, fertilization: early spring according to the situation can be appropriately applied a certain amount of urea (10 kg per acre), irrigation conditions can be used once in winter, spring irrigation once. After each mowing, a mixture of urea and potassium chloride must be added once and watered to promote its growth.
3, pest control: winter grazing 70 In the growth process, if there are insect pests: aphids, red spiders, can be controlled by 40% oxidized fruit and trichlorocarcidol (generally rarely appear).
Fourth, the harvest and utilization of 70 rye grass in winter grazing:
1, the number of harvests: winter pasture 70 rye grass grows rapidly and regenerates strongly. 35 days after emergence, the plant is 24-30 cm tall and begins to be cut green, and the annual cutting is 4 to 6 times. For seeds sown before July 25 to October 5, green cutting can be cut once or twice before winter when the seedlings are as high as 50-70 cm. If sown after October 5, it is generally not cut before winter, but if the water and fertilizer conditions are good, it can also be cut once when the seedling is 50 cm tall. In early to mid-March of the following year, you can start green cutting, you can green cut 2-3 times, leave stubble 7-10 cm during green cutting, the last time without stubble, cut clean on the ground. Each mu of fresh grass is produced 750~1250 kg, a total of 7000~8000 kg, folded hay 2166~2500 kg. Judging from the yield of fresh grass at different sowing stages, early sowing and late sowing will affect the yield.
2, the use of methods: winter pasture 70 rye grass after harvesting is generally harvested fresh feeding, direct feeding or chopping, can also be made of silage, can also be dried into green hay crushing and bran. It is worth paying attention to: autumn sowing winter pasture 70 can be a good solution to the current situation of lack of fresh grass in autumn, winter and early spring, and the area south of Qinling Mountains can be harvested as late as November-December and as early as February-March! It is a good green forage grass in the period of green and yellow.
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