Maintenance/curing

When planting, it needs careful soil preparation, fertilization, irrigation, suppression before sowing, weeding, shallow ditching and shallow covering. In the Qinghai-Tibet Plateau, sowing is usually carried out in spring or autumn. The sowing amount is 0.5-0.75 kg per mu, and the cost of mowing can be increased appropriately. The row spacing of drilling is 20-30cm, and the sowing depth is1-2cm. It was suppressed after the broadcast. Seedling growth is slow, so it is necessary to prevent livestock from trampling, prevent weeds in time, irrigate at tillering and jointing stage and topdressing, which can improve the yield of the year. According to the experiment in Tongde, Qinghai, the mixed sowing of Poa pratensis, PUCCINELLIA tenuiflora and Poa pratensis in cold grassland can establish high-quality grazing land. Compared with unicast, the grass yield can be increased by 7-4 1%. Mixed sowing of Poa pratensis, Poa pratensis, Agropyron cristatum, Bromus Bromus and Elytrigia repens established high-quality artificial grassland for grazing and mowing, and its yield increased by 28- 165% compared with that of single sowing.

Eliminate pests and diseases

disease

There are mainly rust, brown spot, pythium wilt and summer leaf blight.

insect pest

Common forage pests include Asian migratory locust, broad-bearded ant locust, young locust with small wings, young locust with narrow wings, Siberian locust, grassland caterpillar, stem fly, Italian locust, grub, grub, needle worm, cutworm, white-edged cutworm, large-padded pointed-winged locust and wheat. [3]

Principal value editor

Kentucky bluegrass in cold regions has erect, soft, slightly sweet and good palatability, and is an excellent forage for mowing and grazing. Before flowering, horses, cows and sheep like Poa pratensis best. Although the crude protein content decreased after flowering, it was soft and palatable. Summer and autumn are excellent forage for all kinds of livestock, winter and spring are life-saving forage, green hay is a good supplementary forage in winter and spring, and pigs like to eat it after crushing.